24039
2011
deu
lecture
0
--
--
--
"Intelligente"IBC für eine sichere und wirtschaftliche Gefahrgutlogistik
Workshop des BMVBS zu Telematikanwendungen bei der Beförderung gefährlicher Güter während der Messe "transport logistic 2011"
26660
Workshop des BMVBS zu Telematikanwendungen bei der Beförderung gefährlicher Güter während der Messe "transport logistic 2011"
Munich, Germany
2011-05-10
2011-05-10
0
Matthias Bartholmai
Alexander Pettelkau
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
48791
2019
deu
poster
0
--
--
--
3D-Gestalts- und -Verformungsmessung - Anwendungsbeispiele
Der Fokus des Arbeitsfelds ist die messtechnisch fundierte Anwendung der 3D-Verfahrenskombination zur Lösung vielfältiger Messaufgaben mit optimaler Datenqualität für interne und externe Kunden.
Das setzt insbesondere eine jeweils problembezogene Messmethodik voraus. Dazu setzen wir kameragestützte 3D-Koordinatenmessverfahren ein, die auf dem fotogrammetrischen Prinzip der Bildtriangulation beruhen. Darunter fallen folgende miteinander flexibel kombinierbare Verfahrensmodifikationen: Mehrbildfotogrammetrie, Messadapter für Geometriemerkmale, Streifenprojektionsverfahren, statische bis hochdynamische Stereofotogrammetrie auf Punktebasis oder aufgabenangepasster Oberflächenmuster und mechanisch-optische Taster.
5th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2019)
Potsdam, Germany
27.08.2019
29.08.2019
false
true
Matthias Bartholmai
Sergej Johann
Cheng-Chieh Wu
deu
uncontrolled
3D-Verformungsmessung
deu
uncontrolled
Koordinatenmessung
deu
uncontrolled
Verschiebungsfeld
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Chemie und Prozesstechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
37645
2016
eng
180
181
conferenceobject
Ljubljana
Narodna in univerzitetna knjižnica, Ljubljana
0
--
--
--
A contribution to intelligent automatic validation of structure-integrated fibre optic strain sensors
Sensors integrated into devices and structures provide essential data to control, optimize or manage machines and structural components. In the last years, processes, applications and machine parts became more and more intelligent. Consequently, the need for sensor validation increased significantly in order to rely on sensor data and measurement results.
Structure-integrated fibre optic strain sensors, such as fiber Bragg gratings (FBG), are of special interest in the composite manufacturing industry. This type of sensor makes it possible to gain information and to collect measurement data about entire production processes and whole life-time cycles of composite-made machine parts and structures. However, validation concepts and approaches for this type of sensors are barely reported in literature. Furthermore, all the reported activities have the drawback that the sensor diagnosis strategy is implemented as limited mathematical models and/or complex time-consuming spectral analysis tools which are applied in data post-processing loops. However, to automate sensor validation and to apply real-time and in-field sensor fault detection, it is necessary to acquire measurement data and information about the measurement reliability at the same time.
33rd Danubia- Adria Symposium on Advances in Experimental Mechanics - BOOK OF ABSTRACTS
978-961-94081-0-0
33rd Danubia- Adria Symposium on Advances in Experimental Mechanics
Portorož, Slovenia
20.09.2016
23.09.2016
Vivien Schukar
Enrico Köppe
Detlef Hofmann
Anja Westphal
Mario Sahre
Uwe Beck
Xing Gong
Matthias Bartholmai
eng
uncontrolled
Fiber bragg grating
eng
uncontrolled
Magnetic field
eng
uncontrolled
Magnetostrictive metal coating
eng
uncontrolled
Self-diagnostic fiber optical sensor
Analytische Chemie
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
41583
2017
eng
5935
5939
5, Part 1
4
article
Elsevier Ltd.
1
--
--
--
A contribution to intelligent automatic validation of structure-integrated fibre optic strain sensors
An auto-validation tool for the reliability quantification of materials integrated fiber Bragg grating (FBG) strain sensors have been developed and tested. The FBG strain sensor was jacketed with a magnetostrictive layer based on iron-nickel which, when excited by a specific magnetic field, adds an artificial strain to the sensor. The fixed relationship between magnetic induction and wavelength shift of the FBG strain sensor characterizes the bond strength and adhesion between the sensor and the surrounding structure. Due to an easily applicable magnetic field, it is possible to validate the sensor performance in a non-contact, fast way without disturbing the data-acquisition process.
Materials Today: Proceedings
10.1016/j.matpr.2017.06.073
http://www.sciencedirect.com/science/article/pii/S2214785317308489
2214-7853
33nd Danubia Adria Symposium on Advances in Experimental Mechanics
Portorož, Slovenia
20.09.2016
23.09.2016
14.12.2017
Vivien Schukar
Enrico Köppe
Detlef Hofmann
Anja Mitzkus
Xin Gong
Mario Sahre
Matthias Bartholmai
Uwe Beck
eng
uncontrolled
Fiber Bragg grating
eng
uncontrolled
Self-diagnosis
eng
uncontrolled
Magnetostriction
eng
uncontrolled
Strain
eng
uncontrolled
Auto-validation
Analytische Chemie
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
6363
2005
eng
lecture
0
--
--
--
A new approach for assessing the performance of intumescent coatings
10th European Meeting on Fire Retardancy and Protection of Materials (10th European Conference on Fire Retardant Polymers), FRPM '05, BAM
6771
10th European Meeting on Fire Retardancy and Protection of Materials (10th European Conference on Fire Retardant Polymers), FRPM '05, BAM
Berlin, Germany
2005-09-07
2005-09-09
0
Matthias Bartholmai
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
28878
2013
eng
15
16
Symposia / Applications of remote and local gas sensing ...
conferenceobject
International society for olfaction and chemical sensing (ISOCS)
1
--
--
--
A probabilistic gas patch path prediction approach for airborne gas ource localization in non-uniform wind fields
In this paper, we show that a micro unmanned aerial vehicle (UAV) equipped with commercially available gas sensors can address environmental monitoring and gas source localization (GSL) tasks. To account for the challenges of gas sensing under real-world conditions, we present a probabilistic approach for GSL that is based on a particle filter (PF). Simulation and real-world experiments demonstrate the suitability of this algorithm for micro UAV platforms.
ISOEN 2013 - 15th International symposium on olfaction and electronic nose (Proceedings)
31765
ISOEN 2013 - 15th International symposium on olfaction and electronic nose
Deagu, South Korea
02.07.2013
05.07.2013
06.08.2013
Patrick P. Neumann
M. Schnürmacher
V.H. Bennetts
A.J. Lilienthal
Matthias Bartholmai
J.H. Schiller
eng
uncontrolled
Autonomous micro UAV
eng
uncontrolled
Chemical and wind sensing
eng
uncontrolled
Gas source localization
eng
uncontrolled
Particle filter
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
31525
2014
eng
1113
1118
6/7
12
article
American Scientific Publishers (ASP)
Stevenson Ranch, CA, USA
1
--
--
--
A probabilistic gas patch path prediction approach for airborne gas source localization in non-uniform wind fields
In this paper, we show that a micro unmanned aerial vehicle (UAV) equipped with commercially available gas sensors can address environmental monitoring and gas source localization (GSL) tasks. To account for the challenges of gas sensing under real-world conditions, we present a probabilistic approach to GSL that is based on a particle filter (PF). Simulation and real-world experiments demonstrate the suitability of this algorithm for micro UAV platforms.
Sensor letters
34548
10.1166/sl.2014.3168
1546-198X
1546-1971
02.10.2014
Patrick P. Neumann
M. Schnürmacher
V.H. Bennetts
A.J. Lilienthal
Matthias Bartholmai
J.H. Schiller
eng
uncontrolled
Autonomous micro UAV
eng
uncontrolled
Chemical and wind sensing
eng
uncontrolled
Gas source localization
eng
uncontrolled
Particle filter
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
50418
2018
deu
1
28
report
0
--
--
--
Abschlussbericht zum DFG-Projekt „FAMOS²“ FAser-basierter Magneto-Optischer SchichtSensor
Der Mangel an Anwendungsrichtlinien und Validierungsverfahren für struktur-eingebettete faseroptische Dehnungssensoren, insbesondere auf Faser-Bragg-Gitter (FBG)-Basis, führte bislang dazu, dass diese Sensoren trotz ihrer hervorragenden Eigenschaften im Bereich der kommerziellen Material- und Strukturüberwachung nur in geringem Umfange eingesetzt wurden. Fragen zur Degradation der Sensoren unter Beanspruchung, Alterung durch klimatische Einflüsse und Enthaftung infolge Belastung der Struktur konnten bisher nur theoretisch simuliert oder anhand exemplarischer Proben für einzelne einflussnehmende Parameter im Labor untersucht werden. Die Erfassung des Sensorverhaltens im Bauteil unter komplexen Umwelteinflüssen während des Bauteilbetriebes, um damit eine Aussage zur Zuverlässigkeit der Sensormessdaten zu gewinnen, war bisher nicht möglich.
Im Forschungsprojekt FAMOS² wurde deshalb von 2014 bis 2018 die Realisierung eines Autodiagnoseverfahrens für faseroptische Dehnungssensoren erarbeitet, um die Funktionszuverlässigkeit und Langzeitstabilität der Sensoren während des Bauteilbetriebes innerhalb einer Bauteilstruktur bewerten zu können. Im Rahmen des Forschungsprojektes wurde gezeigt, dass ein FBG-Sensor mit einer speziell angepassten magnetostriktiven Schicht magnetisch so angeregt werden kann, dass mit einer zugeschnittenen Messmethodik zu jedem Zeitpunkt eine Bewertung der Sensorzuverlässigkeit unter Betriebsbedingungen möglich ist. Die auf den Sensor aufgebrachte magnetostriktive Schicht erzeugt bei Anregung mit einem passenden Magnetfeld eine gepulste, synthetische Dehnung. Diese Dehnung steht in einem definierten Verhältnis zum anregenden Magnetfeld und wird optisch über die Verschiebung der Bragg-Wellenlänge ausgelesen. Die Konstanz dieses Verhältnisses stellt dann ein Maß für die korrekte Funktionsfähigkeit des Sensors dar. Das Beschichtungs-verfahren, das magnetische Anregungs- und optische Ausleseverfahren, wie auch die Validierung des Sensors unter Berücksichtigung faseroptischer Effekte wurden während des Projekts konzeptionell entwickelt, aufgebaut und charakterisiert. Qualitativ kann mit diesem Verfahren zunächst eine Gut-/Schlecht-Beurteilung des Sensors vorgenommen werden. Perspektivisch bietet das Verfahren jedoch auch die Möglichkeit, verschiedene Versagensmechanismen bestimmen und klassifizieren zu können. Es zeichnete sich schon während des Projektverlaufs ab, dass sich aus den erzielten Ergebnissen über das Autodiagnoseverfahren hinaus weitere Anwendungsmöglichkeiten für den Einsatz des kombinierten magnetostriktiv-faseroptischen Sensorprinzips, beispielsweise als reiner Magnetfeldsensor, ergeben.
Nach Abschluss dieses Forschungsprojekts besteht nun die Möglichkeit, den Funktionszustand faseroptischer Dehnungssensoren jederzeit unabhängig von Alter, Belastung oder Kenntnis eines Referenzzustands zu einem bestimmten Zeitpunkt bestimmen zu können. Aufbauend auf diesen Ergebnissen können weiterführende Forschungen die Messmethodik vertiefend charakterisieren und weitere Anwendungsfälle erschließen.
Das Dokument unterliegt der Vertraulichkeit und kann nicht zugänglich gemacht werden - Projektlaufzeit: 01.04.2014 - 31.07.2018
The document is subject to confidentiality restrictions and cannot be made accessible - project runtime: 01.04.2014 - 31.07.2018
false
true
Vivien Schukar
Matthias Bartholmai
Uwe Beck
deu
uncontrolled
Faser-Bragg-Gitter (FBG)
deu
uncontrolled
Sensorvalidierung
deu
uncontrolled
Magnetostriktive Beschichtung
deu
uncontrolled
Structural Health Monitoring (SHM)
Analytische Chemie
Ingenieurwissenschaften und zugeordnete Tätigkeiten
6 Materialchemie
6.7 Materialsynthese und Design
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
8.6 Faseroptische Sensorik
Umwelt
Material
Degradation von Werkstoffen
Chemie und Prozesstechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
44077
2018
eng
poster
0
--
--
--
Adaptable multi-sensor device for gas detection
Innovation is the catalyst for the technology of the future. It is important to develop new and better technologies that can continuously monitor the environmental impact, e.g., for air Quality control or emission detection. In the recently at BAM developed Universal Pump Sensor Control (UPSC3) module, different components and sensors are fused. The combination of the individual components makes the UPSC3 module an excellent monitoring and reference system for the development and characterization of gas specific sensors. Measurements over long periods are possible, for mixed gas loads or for certain gas measurements. The System is part of a mobile sensor network of several sensor units, which can also be used as standalone systems.
Networked Environmental Monitoring – from sensor principles to novel services
BAM, Berlin, Germany
06.02.2018
08.02.2018
Matthias Bartholmai
Patrick P. Neumann
Carlo Tiebe
Sergej Johann
eng
uncontrolled
Environmental monitoring
Analytische Chemie
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
43193
2017
eng
poster
0
--
--
--
Adaptable multi-sensor device for gas detection
Innovation is the catalyst for the technology of the future. It is important to develop new and better technologies that can continuously monitor the environmental impact, e.g., for air quality control or emission detection. In the recently at BAM developed Universal Pump Sensor Control (UPSC3) module, different components and sensors are fused. The combination of the individual components makes the UPSC3 module an excellent monitoring and reference system for the development and characterization of gas specific sensors. Measurements over long periods are possible, for mixed gas loads or for certain gas measurements. The system is part of a mobile sensor network of several sensor units, which can also be used as standalone systems.
The motivation and objective of this research is to develop gas sensors based on fluorescence detection with range of ppm / ppb. For this task a reference system is required, which contains volatile organic compound (VOC) sensors for reference data from different scenarios. The integrated multi-sensor unit can measure different gases through the integrated 3-fold VOC sensor, which can be adapted to the addressed scenario. . The system-integrated flow control, with pump and flow sensor, allows the gas molecules to be transported directly to the VOC sensor. The entire measurement is permanently stored on an integrated memory card. If the previously determined limit range is exceeded, an alarm is generated. The system is an important tool towards further developments in the field of gas sensors and is primarily used for the validation of chemically based gas sensors.
Colloquium of Optical Spectrometry (COSP) 2017
Berlin, Germany
27.11.2017
29.11.2017
Sergej Johann
Matthias Bartholmai
Patrick P. Neumann
Carlo Tiebe
Kornelia Gawlitza
Jürgen Bartelmeß
eng
uncontrolled
Gas detection
eng
uncontrolled
Multi sensor device
eng
uncontrolled
Pump control
eng
uncontrolled
VOC
Analytische Chemie
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
26004
2012
eng
800
809
conferenceobject
Wunstorf
AMA Service GmbH
0
--
--
--
Adaptive gas source localization strategies and gas distribution mapping using a gas-sensitive micro-drone
16. ITG/GMA-Fachtagung - Sensoren und Messsysteme 2012
28746
978-3-9813484-0-8
10.5162/sensoren2012/P5.4
Sonderstandort: Publica-Schrank
16. GMA/ITG-Fachtagung 'Sensoren und Messsysteme'
Nürnberg, Germany
2012-05-22
2012-05-23
Patrick P. Neumann
V.H. Bennetts
Matthias Bartholmai
eng
uncontrolled
Anemotaxis
eng
uncontrolled
Chemotaxis
eng
uncontrolled
Micro UAV
eng
uncontrolled
Bio-inspired
eng
uncontrolled
Chemical sensing
eng
uncontrolled
Gas distribution modeling
eng
uncontrolled
Gas source localization
eng
uncontrolled
Gas sensors
eng
uncontrolled
Mobile sensing system
eng
uncontrolled
Odor localization
eng
uncontrolled
Olfaction
eng
uncontrolled
Plume tracking
eng
uncontrolled
Quadrocopter
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
24652
2011
deu
470
478
10
78
article
Oldenbourg
München
1
--
--
--
Adaptive ortsaufgelöste Gaskonzentrationsmessung mit einer Mikrodrohne
Technisches Messen
27328
10.1524/teme.2011.0158
0340-837X
0178-2312
0171-8096
Sonderstandort: Publica-Schrank
03.11.2011
Matthias Bartholmai
Patrick P. Neumann
deu
uncontrolled
Gasmessung
deu
uncontrolled
Gasemission
deu
uncontrolled
Emissionskontrolle
deu
uncontrolled
Windvektor
deu
uncontrolled
Mikrodrohne
deu
uncontrolled
Data-Mapping
deu
uncontrolled
Gas measurement
deu
uncontrolled
Gas emission
deu
uncontrolled
Emission control
deu
uncontrolled
Wind vector
deu
uncontrolled
Micro-drone
deu
uncontrolled
Data mapping
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
56574
2022
eng
1
3
conferenceobject
1
--
--
--
Advance in electronic nose technology developed for the detection and discrimination of ethanol, ammonia, and hydrogen sulfide gases
This work focuses on the design and fabrication of low-cost and fast-response of an electronic nose (E-nose) based on semiconductor gas sensors, for discriminating some synthetic gases such as ammonia (NH3), ethanol (C2H5OH), and hydrogen sulfide (H2S). Additionally, the capability of separating different concentration levels of each considered gases was checked. Dataset treatment of E-nose by using Principal Component Analysis (PCA) showed a good discrimination of the different synthetic gases. Furthermore, perfect classification was reached of different concentration levels of the analysed gases by using Discriminant Function Analysis (DFA). In the light of these results, it could be stated that the developed E-nose system constitutes an inexpensive, rapid, simple to use, and efficient tool for synthetic gases detection.
IEEE International symposium on olfaction and electronic nose (ISOEN 2022)
10.1109/ISOEN54820.2022.9789636
978-1-6654-5860-3
IEEE International Symposium on Olfaction and Electronic Nose (ISOEN)
Aveiro, Portugal
29.05.2022
01.06.2022
publish
19.12.2022
M. Moufid
Carlo Tiebe
N. El Bari
Matthias Bartholmai
B. Bouchikhi
eng
uncontrolled
Electronic nose
eng
uncontrolled
Metal oxide semiconductor
eng
uncontrolled
Chemometric techniques
eng
uncontrolled
Environmental analysis
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Sensorik
53409
2021
eng
39
40
2021
conferenceobject
Johannes Kepler University, Linz, Austria
0
--
--
--
Aerial Chemical-Trail Detection and Localization
This paper presents first advances in the area of aerial chemical trail following. For that purpose, we equipped a palm-size aerial robot, based on the Crazyflie 2.0 quadrocopter, with a small lightweight metal oxide gas sensor for measuring evaporated ethanol from chemical trails. To detect and localize the chemical trail, a novel detection criterion was developed that uses only relative changes in the transient phase of the sensor response, making it more robust in its application. We tested our setup in first crossing-trail experiments showing that our flying ant robot is able to correlate an odor hit with the chemical trail within 0.14 m. Principally, this could enable aerial chemical trail following in the future.
37th Danubia - Adria Symposium on Advances in Experimental Mechanics: Extendet abstracts
978-3-9504997-0-4
37th Danubia - Adria Symposium on Advances in Experimental Mechanics
Linz, Austria
21.09.2021
24.09.2021
publish
false
true
Patrick P. Neumann
Paul Hirschberger
Matthias Bartholmai
eng
uncontrolled
Nano aerial robot
eng
uncontrolled
Trail following
eng
uncontrolled
Trail detection
eng
uncontrolled
Localization
Analytische Chemie
Ingenieurbau
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
48784
2019
eng
1
16
article
Taylor & Francis
London
1
--
--
--
Aerial-based gas tomography – from single beams to complex gas distributions
In this paper, we present and validate the concept of an autonomous aerial robot to reconstruct tomographic 2D slices of gas plumes in outdoor environments. Our platform, the so-called Unmanned Aerial Vehicle for Remote Gas Sensing (UAV-REGAS), combines a lightweight Tunable Diode Laser Absorption Spectroscopy (TDLAS) gas sensor with a 3-axis aerial stabilization gimbal for aiming at a versatile octocopter. While the TDLAS sensor provides integral gas concentration measurements, it does not measure the distance traveled by the laser diode’s beam nor the distribution of gas along the optical path. Thus, we complement the set-up with a laser rangefinder and apply principles of Computed Tomography (CT) to create a model of the spatial gas distribution from a set of integral concentration measurements. To allow for a fundamental ground truth evaluation of the applied gas tomography algorithm, we set up a unique outdoor test environment based on two 3D ultrasonic anemometers and a distributed array of 10 infrared gas transmitters. We present results showing its performance characteristics and 2D plume reconstruction capabilities under realistic conditions. The proposed system can be deployed in scenarios that cannot be addressed by currently available robots and thus constitutes a significant step forward for the field of Mobile Robot Olfaction (MRO).
European Journal of Remote Sensing
10.1080/22797254.2019.1640078
urn:nbn:de:kobv:b43-487843
24.10.2019
Creative Commons - CC BY - Namensnennung 4.0 International
Patrick P. Neumann
Harald Kohlhoff
Dino Hüllmann
Daniel Krentel
Martin Kluge
M. Dzierliński
A. J. Lilienthal
Matthias Bartholmai
eng
uncontrolled
Aerial robot olfaction
eng
uncontrolled
Mobile robot olfaction
eng
uncontrolled
Gas tomography
eng
uncontrolled
TDLAS
eng
uncontrolled
Plume
Analytische Chemie
Ingenieurbau
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Umwelt
Verlagsliteratur
Datei für die Öffentlichkeit verfügbar ("Open Access")
Wissenschaftliche Artikel der BAM
Sensorik
Bundesanstalt für Materialforschung und -prüfung (BAM)
https://opus4.kobv.de/opus4-bam/files/48784/Neumann et al. - 2019 - Aerial-based gas tomography.pdf
32429
2014
eng
528
531
87
article
Elsevier
Amsterdam [u.a.]
0
--
--
--
Air-based multi-hop sensor network for the localization of persons
In this work an air-based sensor network for the localization of persons at extensive areas is presented. The developed network consists of a localization device which the person is wearing (BodyGuard-System), a mobile relay station in the air, and a base station. All three parts communicate with the same radio chip. The BodyGuard-System is an inertial navigation system which was developed for localization in difficult environments with high accuracy and low measurement uncertainty. To increase the range of the system, a multi-hop network was built up. The measured data of the BodyGuard-System and the mobile relay station is visualized on a PC in the base station. This multi-hop network is necessary for example for fire department missions.
Procedia engineering
35495
10.1016/j.proeng.2014.11.540
1877-7058
urn:nbn:de:kobv:b43-324294
EuroSensors 2014, 28th European Conference on Solid-State Transducers
Brescia, Italy
07.09.2014
10.09.2014
Creative Commons - Namensnennung-Nicht kommerziell-Keine Bearbeitung
Enrico Köppe
D. Augustin
Matthias Bartholmai
Werner Daum
eng
uncontrolled
WSN
eng
uncontrolled
Mesh routing
eng
uncontrolled
Air-based
eng
uncontrolled
Multi-hop
eng
uncontrolled
Localization
Verlagsliteratur
Datei für die Öffentlichkeit verfügbar ("Open Access")
Wissenschaftliche Artikel der BAM
https://opus4.kobv.de/opus4-bam/files/32429/1-s2.0-S1877705814026551-main.pdf
44085
2018
eng
poster
0
--
--
--
Airborne Remote Gas Sensing and Mapping
Leaking methane (CH4) from infrastructures, such as pipelines and landfills, is critical for the environment but can also pose a safety risk. To enable a fast detection and localization of these kind of leaks, we developed a novel robotic platform for aerial remote gas sensing. Spectroscopic measurement methods for remote sensing of selected gases lend themselves for use on mini-copters, which offer a number of advantages for inspection and surveillance over traditional methods. No direct contact with the target gas is needed and thus the influence of the aerial platform on the measured gas plume can be kept to a minimum. This allows to overcome one of the major issues with gas-sensitive mini-copters. On the other hand, remote gas sensors, most prominently Tunable Diode Laser Absorption Spectroscopy (TDLAS) sensors have been too bulky given the payload and energy restrictions of mini-copters. Here, we present the Unmanned Aerial Vehicle for Remote Gas Sensing (UAV-REGAS), which combines a novel lightweight TDLAS sensor with a 3-axis aerial stabilization gimbal for aiming on a versatile hexacopter. The proposed system can be deployed in scenarios that cannot be addressed by currently available robots and thus constitutes a significant step forward for the field of Mobile Robot Olfaction (MRO). It enables tomographic reconstruction of gas plumes and a localization of gas sources. We also present first results showing its performance under realistic conditions.
Networked Environmental Monitoring – from sensor principles to novel services
BAM, Berlin, Germany
06.02.2018
08.02.2018
Patrick P. Neumann
Carlo Tiebe
Matthias Bartholmai
eng
uncontrolled
Localization of gas sources
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Tomographic reconstruction of gas plumes
eng
uncontrolled
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
eng
uncontrolled
UAV-REGAS
Analytische Chemie
Ingenieurbau
Sanitär- und Kommunaltechnik; Umwelttechnik
2 Prozess- und Anlagensicherheit
2.1 Sicherheit von Energieträgern
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
48789
2017
eng
poster
0
--
--
--
Airborne remote gas sensing and mapping
Leaking methane (CH4) from infrastructures, such as pipelines and landfills, is critical for the environment but can also pose a safety risk. To enable a fast detection and localization of these kind of leaks, we developed a novel robotic platform for aerial remote gas sensing. Spectroscopic measurement methods for remote sensing of selected gases lend themselves for use on mini-copters, which offer a number of advantages for inspection and surveillance over traditional methods. No direct contact with the target gas is needed and thus the influence of the aerial platform on the measured gas plume can be kept to a minimum. This allows to overcome one of the major issues with gas-sensitive mini-copters. On the other hand, remote gas sensors, most prominently Tunable Diode Laser Absorption Spectroscopy (TDLAS) sensors have been too bulky given the payload and energy restrictions of mini-copters. Here, we present the Unmanned Aerial Vehicle for Remote Gas Sensing (UAV-REGAS), which combines a novel lightweight TDLAS sensor with a 3-axis aerial stabilization gimbal for aiming on a versatile hexacopter. The proposed system can be deployed in scenarios that cannot be addressed by currently available robots and thus constitutes a significant step forward for the field of Mobile Robot Olfaction (MRO). It enables tomographic reconstruction of gas plumes and a localization of gas sources. We also present first results showing its performance under realistic conditions.
5th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2019)
Potsdam, Germany
27.08.2019
29.08.2019
false
true
Matthias Bartholmai
Sergej Johann
Cheng-Chieh Wu
eng
uncontrolled
Localization of gas sources
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Tomographic reconstruction of gas plumes
eng
uncontrolled
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
eng
uncontrolled
UAV-REGAS
Analytische Chemie
Ingenieurbau
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
43204
2017
eng
poster
0
--
--
--
Airborne Remote Gas Sensing and Mapping
Leaking methane (CH4) from infrastructures, such as pipelines and landfills, is critical for the environment but can also pose a safety risk. To enable a fast detection and localization of these kind of leaks, we developed a novel robotic platform for aerial remote gas sensing. Spectroscopic measurement methods for remote sensing of selected gases lend themselves for use on mini-copters, which offer a number of advantages for inspection and surveillance over traditional methods. No direct contact with the target gas is needed and thus the influence of the aerial platform on the measured gas plume can be kept to a minimum. This allows to overcome one of the major issues with gas-sensitive mini-copters. On the other hand, remote gas sensors, most prominently Tunable Diode Laser Absorption Spectroscopy (TDLAS) sensors have been too bulky given the payload and energy restrictions of mini-copters. Here, we present the Unmanned Aerial Vehicle for Remote Gas Sensing (UAV-REGAS), which combines a novel lightweight TDLAS sensor with a 3-axis aerial stabilization gimbal for aiming on a versatile hexacopter. The proposed system can be deployed in scenarios that cannot be addressed by currently available robots and thus constitutes a significant step forward for the field of Mobile Robot Olfaction (MRO). It enables tomographic reconstruction of gas plumes and a localization of gas sources. We also present first results showing its performance under realistic conditions.
Colloquium of Optical Spectrometry (COSP) 2017
Berlin, Germany
27.11.2017
29.11.2017
Patrick P. Neumann
Sergej Johann
Carlo Tiebe
Kornelia Gawlitza
Jürgen Bartelmeß
Matthias Bartholmai
eng
uncontrolled
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
eng
uncontrolled
UAV-REGAS
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Tomographic reconstruction of gas plumes
eng
uncontrolled
Localization of gas sources
Analytische Chemie
Ingenieurbau
Sanitär- und Kommunaltechnik; Umwelttechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
46152
2018
eng
poster
0
--
--
--
Airborne Remote Gas Sensing and Mapping
Leaking methane (CH4) from infrastructures, such as pipelines and landfills, is critical for the environment but can also pose a safety risk. To enable a fast detection and localization of These kind of leaks, we developed a novel robotic platform for aerial remote gas sensing - the so-called Unmanned Aerial Vehicle for Remote Gas Sensing (UAV-REGAS).
Tag der offenen Tür auf dem Testgelände der BAM (BAM TTS)
Baruth/Mark - OT Horstwalde, Germany
29.09.2018
29.09.2018
Patrick P. Neumann
Matthias Bartholmai
eng
uncontrolled
Localization of gas sources
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Tomographic reconstruction of gas plumes
eng
uncontrolled
Tunable Diode Laser Absorption Spectroscopy (TDLAS)
eng
uncontrolled
UAV-REGAS
Analytische Chemie
Ingenieurbau
Sanitär- und Kommunaltechnik; Umwelttechnik
2 Prozess- und Anlagensicherheit
2.1 Sicherheit von Energieträgern
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Fire Science
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
39129
2016
deu
1
4
12
article
0
--
--
--
Altbekannter Watts-Elektrolyt, junge Hightech-Anwendung, Nickel- und Nickel-Eisen-Schichten als magnetostriktive Aktorschicht auf faseroptischen Sensoren
Durch faseroptische Sensoren können Bauteile im Einsatz kontinuierlich überwacht und frühzeitig Informationen über Materialveränderungen gewonnen werden. Mittels einer magnetostriktiven Aktorschicht, welche den Sensor umhüllt, kann nun auch die korrekte Sensorfunktion jederzeit kontrolliert werden. Als Aktorschicht eignet sich galvanisch abgeschiedenes reines Nickel oder Nickel-Eisen in der Zusammensetzung 50:50. Um diese haftfest mit dem Sensor zu verbinden wurde ein ECD/PVD-Kombinationsschichtsystem entwickelt. Die mechanischen Eigenschaften der ECD-Schicht können sowohl mit einer auf die Fasergeometrie angepassten instrumentierten Eindringprüfung als auch einem 2-Punkt-Biegeversuch bestimmt werden.
WoMAG
2195-5891
2195-5905
Anja Mitzkus
Mario Sahre
Philipp Reinstädt
Michael Griepentrog
Uwe Beck
Enrico Köppe
Matthias Bartholmai
Frank Basedau
Detlef Hofmann
Xin Gong
Vivien Schukar
deu
uncontrolled
Faseroptik-Sensoren
deu
uncontrolled
ECD-Aktorschicht
deu
uncontrolled
PVD-Haftfestigkeit
deu
uncontrolled
Nickel-/Nickel-Eisen- Magnetostriktion
Analytische Chemie
Ingenieurwissenschaften und zugeordnete Tätigkeiten
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
24537
2011
eng
34
38
conferenceobject
IEEE
0
--
--
--
An artificial potential field based sampling strategy for a gas-sensitive micro-drone
This paper presents a sampling strategy for mobile gas sensors. Sampling points are selected using a modified artificial potential field (APF) approach, which balances multiple criteria to direct sensor measurements towards locations of high mean concentration, high concentration variance and areas for which the uncertainty about the gas distribution model is still large. By selecting in each step the most often suggested close-by measurement location, the proposed approach introduces a locality constraint that allows planning suitable paths for mobile gas sensors. Initial results in simulation and in real-world experiments with a gas-sensitive micro-drone demonstrate the suitability of the proposed sampling strategy for gas distribution mapping and its use for gas source localization.
IEEE/RSJ International conference on intelligent robots and systems (IROS '11) / Workshop on robotics for environmental monitoring (WREM2011)
27210
IEEE/RSJ International conference on intelligent robots and systems (IROS '11) / Workshop on robotics for environmental monitoring (WREM2011)
San Francisco, CA, USA
25.09.2011
30.09.2011
Patrick P. Neumann
S. Asadi
J.H. Schiller
A.J. Lilienthal
Matthias Bartholmai
eng
uncontrolled
Autonomous UAV
eng
uncontrolled
Chemical sensing
eng
uncontrolled
Gas distribution modelling
eng
uncontrolled
Gas source localization
eng
uncontrolled
Gas sensors
eng
uncontrolled
Mobile sensing system
eng
uncontrolled
Quadrocopter
eng
uncontrolled
Sensor planning
eng
uncontrolled
Artificial potential field
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
14645
2007
deu
187
205
3
31
article
Heyden
London
1
--
--
--
Assessing the performance of intumescent coatings using bench-scaled cone calorimeter and finite difference simulations
A method was developed to assess the heat insulation performance of intumescent coatings. The method consists of temperature measurements using the bench-scaled experimental set-up of a cone calorimeter and finite difference simulation to calculate the effective thermal conductivity dependent on time/temperature. This simulation procedure was also adapted to the small scale test furnace, in which the standard time-temperature curve is applied to a larger sample and thus which provides results relevant for approval. Investigations on temperature and calculated effective thermal conduction were performed on intumescent coatings in both experimental set-ups using various coating thicknesses. The results correspond to each other as well as showing the limits of transferability between both fire tests. It is shown that bench-scaled cone calorimeter tests are a valuable tool for assessing and predicting the performance of intumescent coatings in larger tests relevant for approval. The correlation fails for processes at surface temperatures above 750°C, which are not reached in the cone calorimeter, but are attained in the small scale furnace set-up.
Fire and materials
16464
0308-0501
1099-1018
Sonderstandort: Publica-Schrank
29.03.2007
Matthias Bartholmai
Bernhard Schartel
deu
uncontrolled
Intumescent coatings
deu
uncontrolled
Cone calorimetry
deu
uncontrolled
Numerical analysis
deu
uncontrolled
Small scale test furnace
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
52626
2021
eng
118449
256
article
Elsevier Ltd.
1
--
--
--
Assessment of outdoor odor emissions from polluted sites using simultaneous thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS), electronic nose in conjunction with advanced multivariate statistical approaches
Poor air quality, particularly in urban areas, causes various diseases and degrades living standards. Air Quality could be affected by emissions of odor, Volatile Organic Compounds (VOCs), and other gases. Therefore, assessment and monitoring of odorous air quality using sensitive, simple, rapid, accurate and portable tools is very important for public health. This study aimed to characterize odor emissions to detect malfunctions in facilities and to prevent air pollution and olfactory nuisance in the environment. A gas chromatographic method, in conjunction with sensorial analysis were performed for odorous air samples analysis collected from neighborhood of Meknes city (Morocco). Advanced multivariate statistical approaches, such as Principal Components Analysis (PCA), Discriminant Function Analysis (DFA), Support Vector Machines (SVMs), and Hierarchical Cluster Analysis (HCA), were used to describe samples similarities. The electronic nose (e-nose) data processing exhibits a satisfactory discrimination between the odorous air samples. Twenty-four VOCs with known molecular formulas were identified with Thermal Desorption-Gas Chromatography-Mass Spectrometry (TD-GC-MS). A validated Partial Least Square (PLS) model foresees good calibration between e-nose measurement and TD-GCMS analysis. The finding indicates that TD-GC–MS approach in conjunction with e-nose unit could be suitable tool for environmental measurement-based odor emissions.
Atmospheric Environment
1352-2310
10.1016/j.atmosenv.2021.118449
publish
14.06.2021
M. Moufid
B. Bouchikhi
Carlo Tiebe
Matthias Bartholmai
N. El Bari
eng
uncontrolled
Electronic nose
eng
uncontrolled
TD-GC-MS
eng
uncontrolled
PLS regression
eng
uncontrolled
Multivariate analysis
eng
uncontrolled
Outdoor odor emissions
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Chemie und Prozesstechnik
Chemische Charakterisierung und Spurenanalytik
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Sensorik
25773
2012
eng
50
61
1
19
article
IEEE
New York, NY, USA
1
--
--
--
Autonomous gas-sensitive microdrone - wind vector estimation and gas distribution mapping
This article presents the development and validation of an autonomous, gas sensitive microdrone that is capable of estimating the wind vector in real time using only the onboard control unit of the microdrone and performing gas distribution mapping (DM). Two different sampling approaches are suggested to address this problem. On the one hand, a predefined trajectory is used to explore the target area with the microdrone in a real-world gas DM experiment. As an alternative sampling approach, we introduce an adaptive strategy that suggests next sampling points based on an artificial potential field (APF). Initial results in real-world experiments demonstrate the capability of the proposed adaptive sampling strategy for gas DM and its use for gas source localization.
IEEE Robotics and automation magazine
28503
10.1109/MRA.2012.2184671
1070-9932
Sonderstandort: Publica-Schrank
26.04.2012
Patrick P. Neumann
S. Asadi
A.J. Lilienthal
Matthias Bartholmai
J.H. Schiller
eng
uncontrolled
Anemometric sensor
eng
uncontrolled
Autonomous micro UAV
eng
uncontrolled
Chemical sensing
eng
uncontrolled
Gas distribution modelling
eng
uncontrolled
Gas source localization
eng
uncontrolled
Gas sensors
eng
uncontrolled
Mobile sensing system
eng
uncontrolled
Quadrocopter
eng
uncontrolled
Sensor planning
eng
uncontrolled
Artificial potential field
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
7377
2005
eng
264
275
9
bookpartcollection
Royal Society of Chemistry
Cambridge
1
--
--
--
Barrier effects for the fire retardancy of polymers
Fire retardancy of polymers
7822
0-85404-582-1
Sonderstandort: Publica-Schrank
9th European Meeting on Fire Retardancy and Protection of Materials
Lille, France
2003-09-15
2003-09-17
11.05.2016
Bernhard Schartel
Matthias Bartholmai
Ulrike Braun
eng
uncontrolled
Fire retardancy
eng
uncontrolled
Nanocomposites
eng
uncontrolled
Red Phosphorus
eng
uncontrolled
Mg(OH)2
eng
uncontrolled
Cone Calorimeter
eng
uncontrolled
LOI
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
22058
2010
deu
poster
0
--
--
--
Bauwerke unter Beobachtung. Funkbasiertes Sensornetzwerk zur Schadensfrüherkennung an Bauwerken
Hannover-Messe
24552
Hannover-Messe
Hanover, Germany
2010-04-19
2010-04-23
Matthias Bartholmai
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
45394
2018
deu
565
569
19. ITG/GMA-Fachtagung
conferenceobject
VDE Verlag GmbH
Berlin
VDE VERLAG GMBH
0
--
--
--
Bestimmung der Maschinennachgiebigkeit beim Einsatz sphärischer Indenter in der Instrumentierten Eindringprüfung
Es wird ein vereinfachtes Verfahren für die Bestimmung und Implementierung der Maschinennachgiebigkeit bei der Verwendung eines sphärischen Indenters dargestellt. Die Maschinennachgiebigkeit wird bei deutlicher Kraftabhängigkeit als Funktion der Kraft in die Auswertung implementiert. Als sensitiver Kennwert dient der aus der instrumentierten Eindringprüfung an Härtevergleichsplatten ermittelte Eindringmodul.
ITG-Fachbericht 281 Sensoren und Messsysteme 2018
978-3-8007-4683-5
0932-6022
Sensoren und Messsysteme
Nürnberg, Germany
26.06.2018
27.06.2018
Manol Manolov
Andreas Subaric-Leitis
Matthias Bartholmai
deu
uncontrolled
Maschinennachgiebigkeit
deu
uncontrolled
Instrumentierte Eindringprüfung
deu
uncontrolled
Sphärische Indenter
deu
uncontrolled
Vereinfachtes Verfahren
deu
uncontrolled
Kraftabhängige Funktion
deu
uncontrolled
Härtevergleichsplatten
deu
uncontrolled
Eindringmodul
Analytische Chemie
Ingenieurwissenschaften und zugeordnete Tätigkeiten
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Material
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Sensorik
51222
2020
eng
374
375
conferenceobject
0
--
--
--
Calibration Service as a Gateway to Sustainable Research and Development
Over decades, the German Federal Institute for Materials Research and Testing (BAM) has established a sophisticated calibration laboratory for force, temperature and electrical quantities. Since more than 15 years it is accredited, currently by the national accreditation body (DAkkS), and offers its service also to external entities on a global scale. As a public provider, we are furthermore committed to research and development activities that demand measurements with highest quality and low level of uncertainties. Two R&D examples are highlighted within this contribution.
SMSI 2020 Proceedings
978-3-9819376-2-6
10.5162/SMSI2020/E3.3
SMSI 2020
Meeting was canceled
22.06.2020
25.06.2020
false
true
Michael Melzer
Michael Fischer
Marcus Thomas
Andreas Subaric-Leitis
Matthias Bartholmai
eng
uncontrolled
Calibration of force
eng
uncontrolled
Calibration of temperature
eng
uncontrolled
Calibration of electrical quantities
eng
uncontrolled
Measurement uncertainty
eng
uncontrolled
New sensor principles
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Chemie und Prozesstechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
36034
2016
eng
poster
0
--
--
--
Chances and limitations of RFID sensor systems – practical experiences from research projects with different application scenarios
The combination of Radio-frequency identification (RFID) and low energy sensors offers promising chances to implement cost effective, easy to apply, and easy to handle sensor systems for a variety of applications. The RFID technology is already well established in logistics. Enhanced processing and interface capabilities enable the integration of various sensors for control, diagnostics, and monitoring tasks. In the scope of research projects carried out at the Federal Institute for Materials Research and Testing (BAM), RFID sensor systems were developed and validated with regard to two different application scenarios: the Identification and diagnosis of concrete components for road bridges and the monitoring of dangerous goods transportation. This contribution presents selected research results and reflects the practical experiences on future chances and limitations of RFID sensor systems.
IDTechEx Show! Europe 2016
Berlin, Germany
27.04.2016
28.04.2016
Matthias Bartholmai
eng
uncontrolled
RFID Sensors systems
eng
uncontrolled
Diagnosis of concrete components
eng
uncontrolled
Monitoring of dangerous goods
Analytische Chemie
Ingenieurbau
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
35425
2016
eng
330
341
47
2016
article
Elsevier B.V.
1
--
--
--
Characteristic length measurement of a subsurface gas anomaly - A monitoring approach for heterogeneous flow path distributions
Geogenic gases from natural sources, carbon dioxide (CO2) from a geological repository (carbon capture and storage - CCS) or a leaking gas pipeline can present serious risks in industrial and urban areas. To extend the lead time for risk treatment in such critical regions, reliable detection of gases within the shallow subsurface is required to observe critical gas accumulations before degassing into the atmosphere.
A near real-time monitoring approach is introduced to determine the volumetric expansion of a leakinggas in the subsurface. Considering the pressure relaxation with the ambient air pressure, the approach enables the forecasting of the final size of a pressurized gas body in terms of characteristic lengths. According to theoretical basics, such a characteristic length, which enables us to perform a gas (safety) measurement based on a purely geometrical measure, behaves independently of subsurface properties,i.e., it enables a reliable quantification of the escaping gas irrespective of its heterogeneous or changingflow path distribution. A field test for a 10 l/min pinhole leakage injected into a 10 m long, 0.4 m wide, 0.95 m deep soil-filled trench that was equipped with linear sensors shows the lateral-vertical volumetric gas expansion along these sensors, and demonstrates the applicability of the characteristic length approach.
International Journal of Greenhouse Gas Control
10.1016/j.ijggc.2016.02.008
1750-5836
20.07.2016
D. Lazik
S. Ebert
Patrick P. Neumann
Matthias Bartholmai
eng
uncontrolled
Monitoring
eng
uncontrolled
Carbon capture and storage
eng
uncontrolled
Leakage
eng
uncontrolled
Quantification
eng
uncontrolled
Subsurface
eng
uncontrolled
CO2
Angewandte Physik
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
39400
2017
eng
lecture
0
--
--
--
Characteristic length measurement of a subsurface gas anomaly - an integrating monitoring approach over heterogeneous distributed gas flow paths
Geogenic gases such as CH4 or CO2 from natural sources, gases (CCS-CO2, H2, Natural
gas, City gas …) from a geological repository, or a leaking gas pipeline can present serious
risks in industrial and urban areas where the density of infrastructural elements increases as
well as above and below ground. To extend the lead time for risk treatment in such critical
regions, reliable detection of gases within the shallow subsurface is required to observe
critical gas accumulations before degassing into the atmosphere.
A near real-time monitoring approach is introduced to determine the volumetric expansion of
such a gas escaping from a leak in the subsurface. Considering the pressure relaxation with
the ambient air pressure, the approach enables the forecasting of the final size of a
pressurized gas body in terms of characteristic lengths. According to theoretical basics, such
a characteristic length, which allows to perform a gas (safety) measurement based on a
purely geometrical measure, behaves independently of subsurface properties, i.e., it enables
a reliable quantification of the escaping gas, irrespective of its heterogeneous flow path
distribution. A field test for a 10 l/min pinhole leakage of CO2 injected in an unsaturated Chernozemic soil (agricultural test field Bad Lauchstädt)that was equipped with linear gas sensors demonstrates the lateral-vertical volumetric gas expansion along the environment of these gas sensors, and confirms the applicability of the new characteristic length approach.
UFZ EnergyDays 2017
Leipzig, Germany
15.03.2017
16.03.2017
0
D. Lazik
Patrick P. Neumann
Matthias Bartholmai
eng
uncontrolled
CO2
eng
uncontrolled
Carbon capture and storage
eng
uncontrolled
Leakage
eng
uncontrolled
Monitoring
Analytische Chemie
Angewandte Physik
Sanitär- und Kommunaltechnik; Umwelttechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
42095
2017
eng
poster
0
--
--
--
Characterization of the temperature behavior of a piezoresistive accelerometer
Piezoresistive accelerometers use a strainsensing element, generally made of semiconductor material, e.g., silicon to convert the mechanical motion into an electrical signal. This element is usually designed in form of a cantilever beam loaded with a mass. Acceleration causes bending
of the beam, which produces a change of electrical resistance proportional to the applied acceleration.
Main advantages of piezoresistive accelerometers in comparison to other types, e.g., piezoelectric and capacitive, is their robust and highly dynamic behavior, which qualifies them for application in high impact shock applications. Mechanical damping is typically implemented with silicon oil in a way that the output signal is undistorted over a wide frequency range. These characteristics principally qualify them for the application in drop tests carried out at BAM, for which they are calibrated over the frequency range from 1 to 4 kHz. However, using silicon oil for damping, has the drawback of temperature dependent change of its viscosity, leading to temperature dependent deviation of the accelerometer’s sensitivity. This study presents experimental results of the temperature behavior of a piezoresistive accelerometer with a dynamic range up to ±5000 g.
This type of accelerometer is applied for drop tests which are partially performed at temperatures of -40 or +100 °C.
34th Danubia-Adria Symposium on Advances in Experimental Mechanics
Trieste, Italy
19.09.2017
22.09.2017
Sergej Johann
Matthias Bartholmai
eng
uncontrolled
Piezoresistive accelerometers
eng
uncontrolled
Temperature behavior of a piezoresistive accelerometer
eng
uncontrolled
Hopkinson bar
eng
uncontrolled
Drop tests
Ingenieurbau
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
42109
2017
eng
93
95
conferenceobject
Trieste
University of Trieste, Italy
0
--
--
--
Characterization of the temperature behavior of a piezoresistive accelerometer
Piezoresistive accelerometers use a strain-sensing element, generally made of semiconductor material, e.g., silicon to convert the mechanical motion into an electrical signal. This element is usually designed in form of a cantilever beam loaded with a mass. Acceleration causes bending of the beam, which produces a change of electrical resistance proportional to the applied acceleration.
Main advantages of piezoresistive accelerometers in comparison to other types, e.g., piezoelectric and capacitive, is their robust and highly dynamic behavior, which qualifies them for application in high impact shock applications. Mechanical damping is typically implemented with silicon oil in a way that the output signal is undistorted over a wide frequency range. These characteristics principally qualify them for the application in drop tests carried out at BAM, for which they are calibrated over the frequency range from 1 to 4 kHz. However, using silicon oil for damping, has the drawback of temperature dependent change of its viscosity, leading to temperature dependent deviation of the accelerometer’s sensitivity.
This study presents experimental results of the temperature behavior of a piezoresistive accelerometer with a dynamic range up to ±5000 g.
This type of accelerometer is applied for drop tests which are partially performed at temperatures of -40 or +100 °C.
34rd Danubia - Adria Symposium on Advances in Experimental Mechanics - Book of proceedings
978-88-8303-863-1
https://www.openstarts.units.it/handle/10077/14921
34th Danubia-Adria Symposium on Advances in Experimental Mechanics
Trieste, Italy
19.09.2017
22.09.2017
Matthias Bartholmai
Klaus-Dieter Werner
Sergej Johann
Werner Daum
eng
uncontrolled
Accelerometer
eng
uncontrolled
Temperature behavior
eng
uncontrolled
Drop test
Analytische Chemie
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
54400
2021
eng
1
7
52
5
conferenceobject
MDPI
0
--
--
--
Characterization of Unpleasant Odors in Poultry Houses Using Metal Oxide Semiconductor-Based Gas Sensor Arrays and Pattern Recognition Methods
In this study, the ability of an electronic nose developed to analyze and monitor odor emissions from three poultry farms located in Meknes (Morocco) and Berlin (Germany) was evaluated. Indeed, the potentiality of the electronic nose (e-nose) to differentiate the concentration fractions of hydrogen sulfide, ammonia, and ethanol was investigated. Furthermore, the impact change of relative humidity values (from 15% to 67%) on the responses of the gas sensors was reported and revealed that the effect remained less than 0.6%. Furthermore, the relevant results confirmed that the developed e-nose system was able to perfectly classify and monitor the odorous air of poultry farms.
The 1st International Electronic Conference on Chemical Sensors and Analytical Chemistry)
10.3390/CSAC2021-10481
https://csac2021.sciforum.net/
urn:nbn:de:kobv:b43-544005
1st International Electronic Conference on Chemical Sensors and Analytical Chemistry
Online meeting
01.07.2021
15.07.2021
publish
false
true
Creative Commons - CC BY - Namensnennung 4.0 International
M. Moufid
Carlo Tiebe
N. El Bari
Matthias Bartholmai
B. Bouchikhi
eng
uncontrolled
Pattern recognition methods
eng
uncontrolled
Gas sensors
eng
uncontrolled
Electronic nose
eng
uncontrolled
poultry odorous air monitoring
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei für die Öffentlichkeit verfügbar ("Open Access")
Graue Literatur
Wissenschaftliche Artikel der BAM
Sensorik
Bundesanstalt für Materialforschung und -prüfung (BAM)
https://opus4.kobv.de/opus4-bam/files/54400/Moufid-2021-Characterization of Unpleasant Odo.pdf
54401
2021
eng
1
6
conferenceobject
0
--
--
--
Combining of TD-GC-MS and home developed electronic nose for road traffic air monitoring
In this work, we demonstrate the ability of an electronic nose system based on an array of six-semiconductor gas sensors for outdoor air quality monitoring over a day at a traffic road in downtown of Meknes city (Morocco). The response of the sensor array reaches its maximum in the evening of the investigated day which may due to high vehicular traffic or/and human habits resulting in elevated concentrations of pollutants. Dataset treatment by Principal Component Analysis and Discriminant Function Analysis shows a good discrimination between samples collected at different times of the day. Moreover, Support Vector Machines were used and reached a classification success rate of 97.5 %. Thermal Desorption-Gas Chromatography-Mass Spectrometry (TD-GC-MS) technique was used to validate the developed e-nose system by identifying the composition of the analyzed air samples. The discrimination obtained by e-nose system was in good agreement with the TD-GC-MS results. This study demonstrates the usefulness of TD-GC-MS and e-nose, providing high accuracy in discriminating outdoor air samples collected at different times. This demonstrates the potential of using the e-nose as a rapid, easy to use and inexpensive environmental monitoring system.
2021 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS)
10.1109/DTS52014.2021.9498110
2021 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS)
Sfax, Tunisia
07.06.2021
10.06.2021
publish
false
true
M. Moufid
Carlo Tiebe
N. El Bari
Matthias Bartholmai
B. Bouchikhi
eng
uncontrolled
GC-MS
eng
uncontrolled
Electronic nose
eng
uncontrolled
Gas sensors
eng
uncontrolled
Urban air monitoring
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
2801
2003
eng
2247
2257
18
204
article
Wiley-VCH Verl.
Weinheim
1
--
--
--
Combustion behaviour of epoxide based nanocomposites with ammonium and phosponium bentonites
The influence of different organobentonites on the decomposition and the combustion behaviour of an epoxy resin were examined. The epoxy resin is a cationically polymerised cycloaliphatic epoxy resin flexibilised with poly(tetrahydrofuran) (PTHF), with hydroxyl endgroups. The bentonite was modified with either an ammonium or a phosphonium salt. The thermal decomposition of the PTHF induced by the initiator, used for the cationic polymerisation, did neither take place for the nanocomposite based on the ammonium bentonite nor for that based on the phosphonium bentonite. This improved decomposition characteristic lead to a larger time to ignition for both kinds of nanocomposites compared to the not modified polymer, which is not the case for other polymer/clay nanocomposites described in the literature. The fire behaviour was investigated using limiting oxygen index (LOI), a horizontal burner test and a cone calorimeter. The forced flaming conditions in the cone calorimeter were varied using different external heat fluxes between 30 and 70 kW · m-2. The fire behaviour of the nanocomposites was improved in comparison to the polymer, and phosphonium bentonite was superior to ammonium bentonite. The main mechanism is a barrier formation resulting in a reduction of the fire growth rate, which was more pronounced in the case of high external heat fluxes.
Macromolecular chemistry and physics
2784
10.1002/macp.200300047
1022-1352
1521-3935
Sonderstandort: Publica-Schrank
01.12.2003
A. Hartwig
D. Pütz
Bernhard Schartel
Matthias Bartholmai
M. Wendschuh-Josties
eng
uncontrolled
Cationic polymerisation
eng
uncontrolled
Clay
eng
uncontrolled
Combustion
eng
uncontrolled
Degradation
eng
uncontrolled
Epoxide
eng
uncontrolled
Nanocomposite
Verlagsliteratur
Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
46484
2018
eng
poster
0
--
--
--
Comparison of the Temperature Behavior of Oil and Gas Damped Piezoresistive Accelerometers
This study presents the characterization of a piezoresistive accelerometer damped with silicon oil for the application in drop tests carried out at BAM. Experiments were performed with the Hopkinson Bar method in close correlation to the real-world application conditions. The results point out certain limitations regarding the temperature influence and the frequency response. Additional experiments were performed with a gas damped type of piezoresistive accelerometer, which has superior specifications, particularly for low temperatures. The results allow for a comparison.
IEEE SENSORS 2018
Neu Delhi, Indien
28.10.2018
31.10.2018
Matthias Bartholmai
eng
uncontrolled
Accelerometer
eng
uncontrolled
Temperature behavior
eng
uncontrolled
Frequency response
eng
uncontrolled
Hopkinson Bar
eng
uncontrolled
Drop test
Analytische Chemie
Angewandte Physik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Energie
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Kerntechnische Entsorgung
Sensorik
4615
2003
eng
poster
0
--
--
--
Comprehensive Fire Behaviour Assessment of Nanocomposites
9th European Meeting on Fire Retardancy and Protection of Materials, FRPM '03
4837
9th European Meeting on Fire Retardancy and Protection of Materials, FRPM '03
Lille, France
2003-09-17
2003-09-19
Matthias Bartholmai
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
32930
2015
deu
lecture
0
--
--
--
Comprehensive Monitoring of Structures for Gas Transport and Storage using Linear Multi-Sensors
World Congress of Smart Materials 2015 (WCSM-2015)
36007
World Congress of Smart Materials 2015 (WCSM-2015)
Busan, Korea
2015-03-23
2015-03-25
0
Matthias Bartholmai
Weder Datei noch physisches Exemplar vorhanden ("No Access")
Präsentation
35688
2016
eng
1124
1128
4
3
article
Elsevier Ltd.
1
--
--
--
Concept for investigating mechanical and thermal impacts on distributed subsurface gas monitoring
A multifunctional sensor in line shape was developed and introduced in previous work for measuring of gas concentrations, temperature change, and strain. A current field study focuses on a spatially distributed monitoring of subsurface CO 2 gas storage sites in near real time.
Mechanical impacts, e.g., caused by construction work, denudation, and seismic activity, can affect the integrity of underground gas storage sites. Thermal or moisture impacts, e.g., caused by weather conditions, can influence the gas Distribution behavior. In this paper, we briefly describe the setup of a CO 2 injection soil test field. This setup contains actuating elements for the investigation of mechanical and thermal impacts on distributed subsurface gas monitoring. A concept is given for evaluating these impacts and first experimental results are presented.
Materials Today: Proceedings
10.1016/j.matpr.2016.03.060
2214-7853
32nd DANUBIA ADRIA SYMPOSIUM on Advances in Experimental Mechanics
Starý Smokovec, Slovakia
22.09.2015
25.09.2015
23.08.2016
Sergej Petrov
Patrick P. Neumann
Klaus-Dieter Werner
Aleksander Wosniok
D. Lazik
Matthias Bartholmai
eng
uncontrolled
Linear sensor
eng
uncontrolled
Distributed sensor
eng
uncontrolled
Monitoring of CO 2
eng
uncontrolled
Subsurface monitoring
eng
uncontrolled
Gas storage areas
eng
uncontrolled
Membrane-based gas sensing
eng
uncontrolled
Fibre optical sensing
Analytische Chemie
Angewandte Physik
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
34489
2015
eng
1124
1128
4
3
conferenceobject
Elsevier Science
Zilina
1
--
--
--
Concept for investigating mechanical impacts on distributed subsurface gas monitoring
A multifunctional sensor in line shape was developed and introduced in previous work for measuring of gas concentrations, temperature change, and strain. A current field study focuses on a spatially distributed monitoring of subsurface CO2 gas storage sites in near real time.
Mechanical impacts, e.g., caused by construction work, denudation, and seismic activity, can affect the integrity of underground gas storage sites. Thermal or moisture impacts, e.g., caused by weather conditions, can influence the gas distribution behavior. In this paper, we briefly describe the setup of a CO2 injection soil test field. This setup contains actuating elements for the investigation of mechanical and thermal impacts on distributed subsurface gas monitoring. A concept is given for evaluating these impacts and first experimental results are presented.
32nd Danubia-Adria Symposium on advances in experimental mechanics (Proceedings)
37623
2214-7853
10.1016/j.matpr.2016.03.060
32nd Danubia-Adria Symposium on advances in experimental mechanics
Starý Smokovec, Slovakia
22.09.2015
25.09.2015
12.10.2015
Sergej Petrov
Patrick P. Neumann
Klaus-Dieter Werner
D. Lazik
Matthias Bartholmai
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
48055
2019
eng
470
473
2
12
article
Elsevier Ltd.
Amsterdam
1
--
--
--
Concept of a gas-sensitive nano aerial robot swarm for indoor air quality monitoring
In this paper, we introduce a nano aerial robot swarm for indoor air quality monitoring applications such as occupational health and safety of (industrial) workplaces. The concept combines a robotic swarm composing of nano Unmanned Aerial Vehicles (nano UAVs), based on the Crazyflie 2.0 quadrocopter, and small lightweight metal oxide gas sensors for measuring the Total Volatile Organic Compound (TVOC) in ppb and estimating the eCO2 (equivalent calculated carbon-dioxide) concentration in ppm. TVOC is a measure for the indoor air quality. An indoor localization and positioning system will be used to estimate the absolute 3D position of the swarm like GPS. Based on this novel indoor air quality monitoring concept, the development and validation of new algorithms in the field of Mobile Robot Olfaction (MRO) are planned, namely gas source localization and gas distribution mapping. A test scenario will be built up to validate and optimize the gas-sensitive nano aerial robot swarm for the intended applications.
Materials Today: Proceedings
10.1016/j.matpr.2019.03.151
2214-7853
35th Danubia Adria Symposium on Advances in Experimental Mechanics
Sinaia, Romania
25.09.2018
28.09.2018
06.06.2019
Patrick P. Neumann
Dino Hüllmann
Matthias Bartholmai
eng
uncontrolled
Nano aerial robot
eng
uncontrolled
UAV
eng
uncontrolled
Swarm
eng
uncontrolled
Indoor air quality
eng
uncontrolled
Monitoring
eng
uncontrolled
Concept
Analytische Chemie
Ingenieurbau
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Infrastruktur
Umwelt
Verlagsliteratur
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Sensorik
46147
2018
eng
poster
0
--
--
--
Concept of a gas-sensitive nano aerial robot swarm for indoor air quality monitoring
In industrial environments, airborne by-products such as dust and (toxic) gases, constitute a major risk for the worker’s health. Major changes in automated processes in the industry lead to an increasing demand for solutions in air quality management. Thus, occupational health experts are highly interested in precise dust and gas distribution models for working environments. For practical and economic reasons, high-quality, costly measurements are often available for short time-intervals only. Therefore, current monitoring procedures are carried out sparsely, both in time and space, i.e., measurement data are collected in single day campaigns at selected locations only. Real-time knowledge of contaminant distributions inside the working environment would also provide means for better and more economic control of air impurities. For example, the possibility to regulate the workspace’s ventilation exhaust locations can reduce the concentration of airborne contaminants by 50%.
To improve the occupational health and safety of (industrial) workplaces, this work aims for developing a swarm of gas-sensitive aerial nano robots for monitoring indoor air quality and for localizing potential emission sources.
Tag der offenen Tür auf dem Testgelände der BAM (BAM TTS)
Baruth/Mark - OT Horstwalde, Germany
29.09.2018
29.09.2018
Patrick P. Neumann
Matthias Bartholmai
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Swarm
eng
uncontrolled
Nano aerial robot
eng
uncontrolled
Gas sensing
Analytische Chemie
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
46137
2018
eng
139
140
conferenceobject
PRINTECH
Bukarest
0
--
--
--
Concept of a gas-sensitive nano aerial robot swarm for indoor air quality monitoring
In industrial environments, airborne by-products such as dust and (toxic) gases, constitute a major risk for the worker’s health. Major changes in automated processes in the industry lead to an increasing demand for solutions in air quality management. Thus, occupational health experts are highly interested in precise dust and gas distribution models for working environments. For practical and economic reasons, high-quality, costly measurements are often available for short time-intervals only. Therefore, current monitoring procedures are carried out sparsely, both in time and space, i.e., measurement data are collected in single day campaigns at selected locations only. Real-time knowledge of contaminant distributions inside the working environment would also provide means for better and more economic control of air impurities. For example, the possibility to regulate the workspace’s ventilation exhaust locations can reduce the concentration of airborne contaminants by 50%.
To improve the occupational health and safety of (industrial) workplaces, this work aims for developing a swarm of gas-sensitive aerial nano robots for monitoring indoor air quality and for localizing potential emission sources.
35th Danubia - Adria Symposium on Advances in Experimental Mechanics - Extended abstracts
978-606-23-0874-2
35th Danubia-Adria Symposium on Advances in Experimental Mechanics
Sinaia, Romania
25.09.2018
28.09.2018
Patrick P. Neumann
Dino Hüllmann
Matthias Bartholmai
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Swarm
eng
uncontrolled
Nano aerial robot
eng
uncontrolled
Gas sensing
Analytische Chemie
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
47799
2019
eng
poster
0
--
--
--
Concept of a gas-sensitive nano aerial robot swarm for indoor air quality monitoring
In industrial environments, airborne by-products such as dust and (toxic) gases, constitute a major risk for the worker’s health. Major changes in automated processes in the industry lead to an increasing demand for solutions in air quality management. Thus, occupational health experts are highly interested in precise dust and gas distribution models for working environments. For practical and economic reasons, high-quality, costly measurements are often available for short time-intervals only. Therefore, current monitoring procedures are carried out sparsely, both in time and space, i.e., measurement data are collected in single day campaigns at selected locations only. Real-time knowledge of contaminant distributions inside the working environment would also provide means for better and more economic control of air impurities. For example, the possibility to regulate the workspace’s ventilation exhaust locations can reduce the concentration of airborne contaminants by 50%.
To improve the occupational health and safety of (industrial) workplaces, this work aims for developing a swarm of gas-sensitive aerial nano robots for monitoring indoor air quality and for localizing potential emission sources.
NetMon International training course - Low-cost Environmental Monitoring
BAM, Berlin, Germany
09.04.2019
10.04.2019
false
true
Patrick P. Neumann
Dino Hüllmann
Matthias Bartholmai
Carlo Tiebe
eng
uncontrolled
Gas sensing
eng
uncontrolled
Mobile Robot Olfaction
eng
uncontrolled
Nano aerial robot
eng
uncontrolled
Swarm
Analytische Chemie
Sanitär- und Kommunaltechnik; Umwelttechnik
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
50878
2020
eng
388
389
conferenceobject
0
--
--
--
Design and Implementation of Smart Multisensor Monitoring System for Safe Workplaces with LoRaWAN
This project addresses the application of safe workplaces in offices and chemical laboratories where indoor air quality plays an important role. The LoRaWAN (Long Range Wide Area Network) is used as a communication interface to make important sensor data globally accessible. The goal of the development is to create a sensor node and an online and offline solution that collects the data from the sensor nodes and stores it on a local server or in a cloud. In cooperation with the companies WISTA GmbH and IONOS, a test sensor network is going to be established in the Berlin-Adlershof area.
SMSI 2020 Proceedings
10.5162/SMSI2020/E5.4
SMSI 2020
Meeting was canceled
22.06.2020
25.06.2020
false
true
Sergej Johann
Antoin Lapalus
Carlo Tiebe
Matthias Bartholmai
eng
uncontrolled
Smart sensors
eng
uncontrolled
Air quality monitoring
eng
uncontrolled
LoRaWAN
eng
uncontrolled
VOC
eng
uncontrolled
Multisensor system
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Graue Literatur
Sensorik
44089
2018
eng
poster
0
--
--
--
Development of a gas standard generator
Pollution through emission of toxic gases is an increasing problem for the environment. It affects similarly agricultural, industrial and urban areas. In future, environmental emissions in ambient air must be monitored at even lower concentrations as nowadays. One environmental relevant compound is ammonia and its conversion product ammonium that have strong negative impact on human health and ecosystems. Most ammonia measurements in ambient air are performed in the range below 1000 nmol·mol 1 and thus there is a need for reliable traceable ammonia gas standards and in addition in situ analytical procedures for monitoring (in ambient air to avoid that thresholds are exceeded). Therefore, the use of reference materials is necessary for development accompanying test or for calibration, e. g. of structure-integrated sensors and mobile multi-gas sensors.
The developed gas standard generator produces gas mixtures that comply with the metrological traceability for ammonia gas standards in the desired environmentally relevant measurement range. The method is based on the permeation of ammonia through a membrane at constant temperature and pressure. The resulting ammonia penetrant gas flow is then mixed with a carrier gas flow to generate a gas standard flow of known concentration. The dynamic rage is enlarged by using a two dilution steps. Depending on the permeation rate, generable molar fractions are possible in the range nmol·mol-1 to a few µmol·mol-1. We present the design of an ammonia gas standard generator and first results of the characterisation of its individual components supporting the uncertainty assessment according to GUM for stable gas concentrations in this range. The relative uncertainty of the generated ammonia gas standard is smaller than 4 % (k = 2).
Networked Environmental Monitoring – from sensor principles to novel services
BAM, Berlin, Germany
06.02.2018
08.02.2018
Carlo Tiebe
Patrick P. Neumann
Matthias Bartholmai
eng
uncontrolled
Permeation
eng
uncontrolled
Gas standard generator
Analytische Chemie
8 Zerstörungsfreie Prüfung
8.1 Sensorik, mess- und prüftechnische Verfahren
Umwelt
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
Sensorik
43337
2017
eng
poster
0
--
--
--
Development of a gas standard generator
Pollution through emission of toxic gases is an increasing problem for the environment. It affects similarly agricultural, industrial and urban areas. In future, environmental emissions in ambient air must be monitored at even lower concentrations as nowadays. One environmental relevant compound is ammonia and its conversion product ammonium that have strong negative impact on human health and ecosystems. Most ammonia measurements in ambient air are performed in the range below 1000 nmol·mol-1 and thus there is a need for reliable traceable ammonia gas standards and in addition in situ analytical procedures for monitoring (in ambient air to avoid that thresholds are exceeded). Therefore, the use of reference materials is necessary for development accompanying test or for calibration, e. g. of structure-integrated sensors and mobile multi-gas sensors.
The developed gas standard generator produces gas mixtures that comply with the metrological traceability for ammonia gas standards in the desired environmentally relevant measurement range. The method is based on the permeation of ammonia through a membrane at constant temperature and pressure. The resulting ammonia penetrant gas flow is then mixed with a carrier gas flow to generate a gas standard flow of known concentration. The dynamic rage is enlarged by using a two dilution steps. Depending on the permeation rate, generable molar fractions are possible in the range nmol·mol-1 to a few µmol·mol-1. We present the design of an ammonia gas standard generator and first results of the characterisation of its individual components supporting the uncertainty assessment according to GUM for stable gas concentrations in this range. The relative uncertainty of the generated ammonia gas standard is smaller than 4 % (k = 2).
Colloquium of Optical Spectrometry (COSP)
Berlin, Germany
27.11.2017
29.11.2017
Carlo Tiebe
Ulrich Banach
Thomas Hübert
Kornelia Gawlitza
Matthias Bartholmai
eng
uncontrolled
Gas standard generator
eng
uncontrolled
Permeation method
eng
uncontrolled
Ammonia
Analytische Chemie
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation
43209
2017
eng
poster
0
--
--
--
Developments towards the fluorescence based sensing of hazardous gases
Fluorescence based sensing is a versatile approach for the trace analysis outside of the laboratory, requiring suitable sensor materials and their integration into sensing devices. The versatility of fluorophores as probes, especially in terms of the possibility to tailor their optical as well as their recognition properties by synthetic modifications in a wide range, renders them a superior active component for the preparation of optical sensor devices. Recent works at BAM in this field include, for example, the detection of nerve gas agents, illustrating impressively the aforementioned benefits of fluorophores in optical sensing applications.
In the interdisciplinary approach presented here, we target hazardous gases such as ammonia, benzene, and hydrogen sulfide, next to others, which pose a major threat to human health and environmental safety and for which the availability of a sensitive and reliable detection method is highly desirable.
The dyes presented follow a “turn-on” fluorescence schematic which allows for the selective and sensitive detection of the respective gaseous analyte. The immobilization of the probe in polymeric matrices is then the next step toward the fabrication of a prototype device for molecular sensing.
Colloquium of Optical Spectrometry (COSP) 2017
Berlin, Germany
27.11.2017
29.11.2017
Jürgen Bartelmeß
Kornelia Gawlitza
Matthias Bartholmai
Knut Rurack
eng
uncontrolled
Gas sensing
eng
uncontrolled
Fluorescence
eng
uncontrolled
KonSens
Analytische Chemie
Sanitär- und Kommunaltechnik; Umwelttechnik
Datei im Netzwerk der BAM verfügbar ("Closed Access")
Präsentation