Filtern
Dokumenttyp
- Posterpräsentation (14)
- Beitrag zu einem Tagungsband (11)
- Zeitschriftenartikel (6)
- Sonstiges (1)
Sprache
- Englisch (26)
- Deutsch (4)
- Mehrsprachig (1)
- Polnisch (1)
Schlagworte
- Nano aerial robot (10)
- Mobile Robot Olfaction (8)
- Swarm (8)
- Gas sensing (4)
- Tomographic reconstruction of gas plumes (4)
- Aerial robot (3)
- Indoor air quality (3)
- Localization (3)
- Localization of gas sources (3)
- TDLAS (3)
- Trail detection (3)
- Trail following (3)
- UAV-REGAS (3)
- Aerial robot olfaction (2)
- Bauwerksüberwachung (2)
- Digitalisation (2)
- Gas tomography (2)
- Indoor Localization (2)
- Mobile Robot (2)
- Mobile robot olfaction (2)
- Monitoring (2)
- NDT Inspection (2)
- Plume (2)
- Setup and Validation (2)
- Tunable Diode Laser Absorption Spectroscopy (TDLAS) (2)
- UAV (2)
- Umweltmonitoring (2)
- Wasserstoff (2)
- Anemometer (1)
- Collision-free navigation (1)
- Concept (1)
- Digital Certificates (1)
- Digitalisierung (1)
- Druckgasspeicher (1)
- Embedded system (1)
- Energiespeicherung (1)
- Environmental monitoring (1)
- Estimation (1)
- Explosionsschutz (1)
- Fluorescence (1)
- Fluorescent sensor (1)
- Fluoreszenz (1)
- Fluoreszenzsensoren (1)
- Gas detector (1)
- Gas dispersion simulation (1)
- Gas standard generator (1)
- Gasdetektion (1)
- Gassensorik (1)
- Glasspeicher (1)
- H2Safety@BAM (1)
- Hydrogen (1)
- Hydrogen technology (1)
- Mini-UAV (1)
- Multigassensoren (1)
- Multirotor aircraft (1)
- Nano UAV Swarm (1)
- Oil (1)
- Permeation (1)
- Petrol (1)
- Phototransistor (1)
- Power-to-Gas (1)
- Prüfung (1)
- QI Digital (1)
- Quality Infrastructure (1)
- RFID-Sensorsysteme (1)
- Remote gas sensor model (1)
- Richtlinie (1)
- Risikoanalyse (1)
- Safety region model (1)
- Sensor (1)
- Sensoren (1)
- Sensorik (1)
- Smartphone (1)
- Temperature calibration (1)
- Test Streifen (1)
- Test strip (1)
- Thrust (1)
- Tribologie (1)
- Tunable Diode Laser Absorption Spectroscopy (TDLAS); UAV-REGAS (1)
- Tunable diode laser absorption Spectroscopy (TDLAS) (1)
- Wasserstofferzeugung (1)
- Water quality (1)
- Wind (1)
- Wind vector (1)
- Wireless mobile sensor device (1)
- pH-Sensor (1)
- Öl (1)
Organisationseinheit der BAM
- 8.1 Sensorik, mess- und prüftechnische Verfahren (32) (entfernen)
Paper des Monats
- ja (1)
Contamination of natural bodies of water or soil with oils and lubricants (or generally, hydrocarbon derivatives such as petrol, fuels, and others) is a commonly found phenomenon around the world due to the extensive production, transfer, and use of fossil fuels. In this work, we develop a simple system for the on-field detection of total petroleum hydrocarbons (TPHs) in water and soil. The test is based on the measurement of the fluorescence signal emitted by the molecular rotor 2-[ethyl[4-[2-(4-nitrophenyl)ethenyl]phenyl]amino]ethanol (4-DNS-OH). This dye is embedded in a hydrophobic polymeric matrix (polyvinylidene fluoride), avoiding interactions with water and providing a robust support for use in a test strip fashion. Together with the strips, an embedded optical system was designed for fluorescence signal read-out, featuring a Bluetooth low-energy connection to a commercial tablet device for data processing and analysis. This system works for the detection and quantification of TPHs in water and soil through a simple extraction protocol using a cycloalkane solvent with a limit of detection of 6 ppm. Assays in surface and sea waters were conclusive, proving the feasibility of the method for in-the-field operation.
Remote gas sensors mounted on mobile robots enable the mapping of gas distributions in large or hardly accessible areas. A challenging task, however, is the generation of threedimensional distribution maps from these gas measurements.
Suitable reconstruction algorithms can be adapted, for instance, from the field of computed tomography (CT), but both their performance and strategies for selecting optimal measuring poses must be evaluated. For this purpose simulations are used, since, in contrast to field tests, they allow repeatable conditions. Although several simulation tools exist, they lack realistic models of remote gas sensors. Recently, we introduced a model for a Tunable Diode Laser Absorption Spectroscopy (TDLAS) gas sensor taking into account the conical shape of its laser beam. However, the novel model has not yet been validated with experiments. In this paper, we compare our model with a real sensor device and show that the assumptions made hold.