TY - CONF A1 - Melzer, Michael A1 - Fischer, Michael A1 - Thomas, Marcus A1 - Subaric-Leitis, Andreas A1 - Bartholmai, Matthias T1 - Calibration Service as a Gateway to Sustainable Research and Development N2 - 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. T2 - SMSI 2020 CY - Meeting was canceled DA - 22.06.2020 KW - Calibration of force KW - Calibration of temperature KW - Calibration of electrical quantities KW - Measurement uncertainty KW - New sensor principles PY - 2020 SN - 978-3-9819376-2-6 DO - https://doi.org/10.5162/SMSI2020/E3.3 SP - 374 EP - 375 AN - OPUS4-51222 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Kondo, M. A1 - Melzer, Michael A1 - Karnaushenko, D. A1 - Uemura, T. A1 - Yoshimoto, S. A1 - Aklyama, M. A1 - Noda, Y. A1 - Araki, T. A1 - Schmidt, O. G. A1 - Sekitani, T. T1 - Imperceptible magnetic sensor matrix system integrated with organic driver and amplifier circuits N2 - Artificial electronic skins (e-skins) comprise an integrated matrix of flexible devices arranged on a soft, reconfigurable surface. These sensors must perceive physical interaction spaces between external objects and robots or humans. Among various types of sensors, flexible magnetic sensors and the matrix configuration are preferable for such position sensing. However, sensor matrices must efficiently map the magnetic field with real-time encoding of the positions and motions of magnetic objects. This paper reports an ultrathin magnetic sensor matrix system comprising a 2 × 4 array of magnetoresistance sensors, a bootstrap organic shift register driving the sensor matrix, and organic signal amplifiers integrated within a single imperceptible platform. The system demonstrates high magnetic sensitivity owing to the use of organic amplifiers. Moreover, the shift register enabled real-time mapping of 2D magnetic field distribution. KW - Imperceptible electronics KW - Magnetic sensor system KW - Electronic skin KW - Organic electronics KW - Giant magnetoresistance PY - 2020 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-503855 DO - https://doi.org/10.1126/sciadv.aay6094 SN - 2375-2548 VL - 6 IS - 4 SP - Paper eaay6094, 1 EP - 10 PB - American Association for the Advancement of Science AN - OPUS4-50385 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Gupta, P. A1 - Karnaushenko, D. D. A1 - Becker, C. A1 - Okur, I. E. A1 - Melzer, Michael A1 - Özer, B. A1 - Schmidt, O. G. A1 - Karnaushenko, D. T1 - Large Scale Exchange Coupled Metallic Multilayers by Roll-to-Roll (R2R) Process for Advanced Printed Magnetoelectronics N2 - Till now application of printed magnetoelectronics is hindered by lack of large area exchange coupled metallic multilayers required to produce printable magneto-sensory inks. Large-scale roll-to-roll (R2R) fabrication process is an attractive approach owing to its capabilities for high volume, high throughput, and large area manufacturing. Precise and high performance R2R sputtering technology is developed to fabricate large area giant magnetoresistive (GMR) thin-films stacks that contain 30 metallic bilayers prepared by continuous R2R sputtering of Co and Cu sequential on a hundred meters long polyethylene terephthalate (PET) web. The R2R sputtered Co/Cu multilayer on a 0.2 × 100 m2 PET web exhibits a GMR ratio of ≈40% achieving the largest area exchange coupled room temperature magneto-sensitive system demonstrated to date. The prepared GMR thin-film is converted to magnetosensitive ink that enables printing of magnetic sensors with high performance in a cost-efficient way, which promotes integration with printed electronics. An average GMR ratio of ≈18% is obtained for 370 printed magnetic sensors. The realized precise R2R sputtering approach can also be extended to a wide range of hybrid thin-film material systems opening up a path for new functional inks applied with printing technologies. KW - Printed Electronics KW - Flexible Magnetic Sensors KW - Roll-to-Roll Processing KW - Functional Materials KW - Upscaling PY - 2022 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-552344 DO - https://doi.org/10.1002/admt.202200190 SN - 2365-709X SP - 1 EP - 11 PB - Wiley-VCH CY - Weinheim, Deutschland AN - OPUS4-55234 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael T1 - Flexible Magnetic Sensors Enabling Novel Measuring Capabilities N2 - Since several years, magnetic sensor elements are available in fully flexible architectures that often reveal identical sensing properties, compared to their rigid counterparts, while being bent severely and repeatedly. Nowadays, a variety of magnetic senor principles, including well known Hall, AMR and GMR but also more exotic PHE and AHE sensors were demonstrated on such flexible platforms. The novel properties of being thin, lightweight, shapeable, and wearable enable magnetic sensory systems to be utilized in vicinities and conditions that are inaccessible for rigid and microchip-based sensors. T2 - SMSI 2023 - Sensor and Measurement Science International CY - Nuremberg, Germany DA - 08.05.2023 KW - Flexible electronics KW - Flexible sensors KW - Magnetic sensors KW - Novel applications KW - In-situ sensing PY - 2023 UR - https://www.ama-science.org/proceedings/details/4402 SN - 978-3-9819376-8-8 DO - https://doi.org/10.5162/SMSI2023/C5.2 SP - 175 EP - 176 PB - AMA Service GmbH CY - Wunstorf AN - OPUS4-58039 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael T1 - Flexible Magnetic Sensors Enabling Novel Measuring Capabilities N2 - Since several years, magnetic sensor elements are available in fully flexible architectures that often reveal identical sensing properties, compared to their rigid counterparts, while being bent severely and repeatedly. Nowadays, a variety of magnetic senor principles, including well known Hall, AMR and GMR but also more exotic PHE and AHE sensors were demonstrated on such flexible platforms. The novel properties of being thin, lightweight, shapeable, and wearable enable magnetic sensory systems to be utilized in vicinities and conditions that are inaccessible for rigid and microchip-based sensors. T2 - SMSI 2023 - Sensor and Measurement Science International CY - Nuremberg, Germany DA - 08.05.2023 KW - Flexible electronics KW - Flexible sensors KW - Magnetic sensors KW - Novel applications KW - In-situ sensing PY - 2023 UR - https://www.ama-science.org/ama-conferences/smsi2023/ AN - OPUS4-58041 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Witt, Florian A1 - Melzer, Michael T1 - Digitale Kalibrierzertifikate – die Umsetzung in akkreditierten Laboratorien N2 - Die PKI zum digitalen Akkreditierungssymbol der DAkkS sowie dessen Funktionsweise und daraus resultierende Mehrwerte für Kalibrierlaboratorien und Endanwender werden vorgestellt. Im Anschluss wird der aktuelle Stand bei der Einführung des digitalen Kalibrierscheins (DCC) im akkreditierten Kalibrierlabor der BAM wiedergegeben. Eine Roadmap für die Digitalisierung des Kalibrierlabors sowie die Vorstellung des Quality-X Konzeptes geben einen Ausblick in die nähere Zukunft. T2 - 324. PTB-Seminar: Berechnung der Messunsicherheit – Empfehlungen für die Praxis CY - Berlin, Germany DA - 22.05.2023 KW - eAttestation KW - Digitalisierung KW - DCC KW - Akkreditierung KW - QI-Digital PY - 2023 UR - https://www.ptb.de/cms/de/ptb/fachabteilungen/abt8/fb-84/ag-842/seminare/324-ptb-seminar-berechnung-der-messunsicherheit-empfehlungen-fuer-die-praxis.html AN - OPUS4-58002 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael A1 - Nattuveettil, Keerthana A1 - Brunner, Nanine A1 - Thomas, Marcus T1 - DCC´s im Praxistest: Rückführung auf Knopfdruck N2 - Eine online Live-Vorführung des DCC Demonstrators zur automatisierten Erstellung und Auswertung eines maschinenlesbaren digitalen Kalibrierscheins zur metrologischen Rückführung eines Pt 100 Temperaturfühlers. Workflow: DCC Vorlage für Kalibrierungen nach DKD-R 5-1; DCC Middleware zur Aufnahme der auftragsbezogenen Metadaten und Einfügen aller Daten, inkl. der Messdaten, in die DCC Vorlage; Validierung des befüllten DCCs gegen das DCC-Schema; Siegelung des DCCs mit dem digitalen Akkreditierungssymbol; Übertragung an den DCC-Nutzer; nutzerseitige Verifizierung des elektronischen Siegels zur Sicherstellung von Authentizität, Integrität und Akkreditierung; direktes auslesen der Sensordaten mit Messunsicherheit basierend auf Herstellerspezifikationen; Einlesen und Auswerten des DCCs auf Knopfdruck, damit automatisierte Erstellung einer Kalibrierfunktion und entsprechende Korrektur der Sensordaten, automatisches Auslesen der temperaturabhängigen Messunsicherheit und Erweiterung um relevante Beiträge zum Erreichen der metrologischen Rückführbarkeit der Temperaturmessung; qualitätsgesicherte Konformitätsaussage des Prozesses auf Basis der so korrigierten Temperaturmesswerte und deren Unsicherheiten. T2 - Virtuelle und interaktive Praxiswerkstätten: "Digitale QI für Prüf- und Kalibrierlabore" CY - Online meeting DA - 30.11.2023 KW - Live Demonstration KW - Digitalisierung KW - Digitaler Kalibrierschein KW - Metrologische Rückführbarkeit PY - 2023 UR - https://www.qi-digital.de/hauptmenue/begleitforschung/praxiswerkstaetten AN - OPUS4-59048 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael T1 - The digitalization of force metrology N2 - The transfer of data for the metrological traceability of measurement results is currently taking place in the form of paper-based calibration certificates, mostly. Especially accredited metrology services providers are often bound to paper certificates by regulatory constrictions and sometimes lack of IT-infrastructure. This analog form of metrology data transfer, however, implies hands-on work, in particular for the certificate receiver, as its key values need to be translated into the device- and quality management (QM) system, manually. With thousands of certificates transferred from accredited calibration labs until the industrial regime, this binds a significant amount of human resources and is a well-known source of errors, thus constricting cost-effective and secure workflows. This contribution highlights the status of the advancing digital transformation in metrology, on the example of force calibration. Although this appealing initiative is to a large extend driven by German stakeholders, it currently evolves to extend across all Europe and far beyond. T2 - 39TH DANUBIA-ADRIA SYMPOSIUM ON ADVANCES IN EXPERIMENTAL MECHANICS CY - Siofok, Hungary DA - 26.09.2023 KW - Digitalisierung KW - Metrologische Rückführung KW - Digitaler Kalibrierschein PY - 2023 UR - https://das2023.hu/ AN - OPUS4-59027 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael A1 - Nattuveettil, Keerthana T1 - Digital Calibration Certificates: Transforming Efficiency and Safety in Hydrogen Refuelling Station N2 - Digital Certificates have emerged as a pivotal element in automation and digitalisation. This presentation highlights the added value of a digitalised metrology, its impact on the workflows on the calibration service providing and receiving side as well as their significance in enhancing the quality infrastructure. An overview of digital calibration certificates (DCC) for temperature sensors, including their structure and role in establishing trust in hydrogen refuelling stations (HRS), will be discussed. Additionally, it explores the impact of DCC on optimising efficiency in the hydrogen refuelling process. Exploring the paradigm shift brought about by Industry 4.0, where machines possess the ability to autonomously interpret digital certificate data, leads to streamlined safety checks and reduced human intervention. We will discuss how automated verification of machine-readable certificates contributes to maintaining and elevating safety standards over human-readable certificates. Furthermore, we will take a deep dive into the application of DCCs in HRS, showcasing how they enhance operational efficiency, accuracy, and maintenance by enabling real-time monitoring and adjustment of process data. By exploring the interdependent relationship between digital certificates, machine-readable environments, and HRS optimisation, this presentation will provide valuable insights into harnessing cutting-edge technologies to create a safer, more efficient, and technologically empowered hydrogen refuelling process. T2 - H2Safety@BAM : Hydrogen Colloquium CY - Online meeting DA - 06.09.2023 KW - Digital Calibration Certificate KW - Digitalization KW - Digital Traceability KW - QI-Digital KW - Hydrogen Infrastructure PY - 2023 UR - https://www.bam.de/Content/DE/Standardartikel/Themen/Energie/Wasserstoff/wasserstoff.html AN - OPUS4-58353 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael T1 - Flexible GMR sensors for novel flux leakage testing capabilities N2 - In order to detect small and hidden material defects or micro-cracks, weak and localized magnetic stray fields need to be detected and characterized on the magnetic surface. Current flux leakage sensor elements are rigid and rely on air gaps to detect stray fields several hundred micrometers above the surface. Furthermore, the increasing complexity of critical components, enabled by novel fabrication technologies, primarily additive manufacturing, poses a significant challenge to the available flux leakage testing technologies. The emergence of flexible magneto-electronics paves the way to a compliant form of magnetic sensors that, on one hand, are able to adapt to highly curved surfaces, allowing these measurements to be conducted on irregularly formed components, which are inaccessible for nowadays electromagnetic NDT equipment and, on the other hand, could enhance the detection limit for small magnetic stray fields, by allowing the magneto-sensitive elements to approximate the object’s surface until only a few µm, mediated by thin and flexible packaging. T2 - 38th Danubia-Adria Symposium on Advances in Experimental Mechanics CY - Poros, Greece DA - 20.09.2022 KW - Non-destructive testing KW - Flux leakage testing KW - Flexible sensorics KW - GMR Sensors KW - Flexible electronics PY - 2022 AN - OPUS4-56628 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Bauer, R. A1 - Pham, M. A1 - Becker, T. A1 - Melzer, Michael A1 - Pelkner, Matthias A1 - Böhle, B. A1 - op den Winkel, F. A1 - Kliche, K. A1 - Welker, F. A1 - Becker, P. A1 - Pfeffer, A. A1 - Gerber, J. A1 - Holzhey, R. A1 - Wenzel, B. A1 - Slatter, R. A1 - Grönefeld, M. A1 - Nasaruk, M. A1 - Buß, R. A1 - Hille, P. A1 - Bartos, A. A1 - Schreiner, I. T1 - Anforderungen an die technische Darstellung von magnetischen Maßverkörperungen in Konstruktionszeichnungen N2 - Dieses Dokument legt Anforderungen an die technische Darstellung von Geometrie und magnetischen Eigenschaften in Konstruktionszeichnungen von magnetischen Maßverkörperungen fest und definiert die dazu notwendige Terminologie. KW - Magnetische Maßverkörperungen KW - Konstruktionszeichnungen KW - Terminologie KW - Magnetische Messsysteme PY - 2022 DO - https://doi.org/10.31030/3359425 IS - DIN SPEC 91411:2022-08 SP - 1 EP - 48 PB - Beuth CY - Berlin AN - OPUS4-56631 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Melzer, Michael T1 - Taxonomie magnetischer Maßverkörperungen N2 - Darstellung der Taxonomie magnetischer Maßverkörperungen im Zusammenhang mit der DIN SPEC 91411 "Anforderungen an die technische Darstellung von magnetischen Maßverkörperungen in Konstruktionszeichnungen" KW - Magnetische Maßverkörperungen KW - Magnetische Messysteme KW - Taxonomie PY - 2022 UR - https://innomag.org/wp-content/uploads/2021/10/DIN-SPEC-Poster_final.pdf SP - 1 EP - 1 PB - Innovationsplattform Magnetische Mikrosysteme INNOMAG CY - Kaiserslautern AN - OPUS4-56633 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Melzer, Michael ED - Deschermeier, Regina ED - Bünger, Lars ED - Schüür, Jens T1 - Good practice für digitale Kalibrierscheine von Temperatur- und Feuchtemessgrößen N2 - Der digitale Kalibrierschein (DCC) enthält alle Informationen eines herkömmlichen Kalibrierscheins in maschinenlesbarer und möglichst auch -interpretierbarer Form, um eine Automatisierung des Qualitätsmanagements und der metrologischen Rückführbarkeit in den Laboren und im industriellen Messwesen zu ermöglichen. Neben den allgemeinen Anforderungen, z.B. aus ISO/IEC 17025, gibt es spezifische Anforderungen bezüglich der Messgrößen und der Kalibrierverfahren, die auch in digitalen Ergebnisberichten erfüllt sein müssen. Innerhalb des DKD Fachausschusses für Temperatur und Feuchte werden derzeit good practice Empfehlungen erarbeitet, um zu definieren, wie genau diese Anforderungen im Rahmen des DCC erfüllt werden sollten. Anhand der Temperaturskala und des Kalibriermediums werden zwei dieser good practices hier beispielhaft erläutert. Außerdem wird eine Übersicht über die bereits definierten spezifischen refType-Attribute für Temperatur- und Feuchtemessgrößen gegeben. T2 - TEMPERATUR 2024 CY - Berlin, Germany DA - 05.06.2024 KW - Digital Calibration Certificate KW - Digital certificates KW - Digital Metrology KW - QI-Digital KW - Calibration PY - 2024 UR - https://www.temperatur.ptb.de/startseite SP - 145 EP - 151 AN - OPUS4-61923 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -