TY - CHAP A1 - Hochbrückner, Benedikt A1 - Spiertz, Martin A1 - Küchler, Andreas A1 - Zink, Markus A1 - Steiner, Thomas A1 - Winkelmann, Erik A1 - Krätzschmar, Karsten T1 - Digital Filtering Methods for Interferences on Partial Discharges Under DC Voltage Y1 - 2020 SN - 978-3-030-31675-4 U6 - https://doi.org/10.1007/978-3-030-31676-1_53 SP - 560 EP - 571 ER - TY - CHAP A1 - Hochbrückner, Benedikt A1 - Küchler, Andreas A1 - Spiertz, Martin A1 - Krätzschmar, Karsten A1 - Zink, Markus T1 - Comparison of Algorithms for Clustering of Partial Discharge Signals under DC Voltage Y1 - 2019 U6 - https://doi.org/10.1109/ICHVEPS47643.2019.9011062 ER - TY - CHAP A1 - Spiertz, Martin T1 - Jupyter Notebooks in der Lehre T2 - Fortschritte der Akustik DAGA ’24 Y1 - 2024 ER - TY - CHAP A1 - Hariharan, Sai Gokul A1 - Kaethner, Christian A1 - Strobel, Norbert A1 - Kowarschik, Markus A1 - Albarqouni, Shadi A1 - Fahrig, Rebecca A1 - Navab, Nassir T1 - Learning-based X-ray image denoising utilizing model-based image simulations T2 - International Conference on Medical Image Computing and Computer-Assisted Intervention - MICCAI 2019, 22nd International Conference Shenzhen, China, October 13-17, 2019 Proceedings, Part VI Y1 - 2019 U6 - https://doi.org/10.1007/978-3-030-32226-7_61 SP - 549 EP - 557 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Hariharan, Sai Gokul A1 - Kaethner, Christian A1 - Strobel, Norbert A1 - Kowarschik, Markus A1 - DiNitto, Julie A1 - Fahrig, Rebecca A1 - Navab, Nassir T1 - Model-based motion artifact correction in digital subtraction angiography using optical-flow T2 - Bildverarbeitung für die Medizin 2019: Algorithmen - Systeme - Anwendungen. Proceedings des Workshops vom 17. bis 19. März 2019 in Lübeck Y1 - 2019 U6 - https://doi.org/10.1007/978-3-658-25326-4_31 SP - 146 EP - 151 PB - Springer Fachmedien CY - Wiesbaden ER - TY - JOUR A1 - Maximilian, Rosilius A1 - Spiertz, Martin A1 - Wirsing, Benedikt A1 - Geuen, Manuel A1 - Bräutigam, Volker A1 - Ludwig, Bernd T1 - Impact of Industrial Noise on Speech Interaction Performance and User Acceptance when Using the MS HoloLens 2 JF - Multimodal Technologies and Interaction Y1 - 2024 U6 - https://doi.org/10.3390/mti8020008 VL - 8 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Machin, Graham A1 - Bloembergen, P. A1 - Anhalt, Klaus A1 - Sadli, M. A1 - Saunders, P. A1 - Woolliams, E. A1 - Yamada, Y. A1 - Yoon, H. T1 - Practical implementation of the mise-en-pratique for the definition of the Kelvin above the silver point JF - International Journal of Thermophysics Y1 - 2010 UR - http://permalink.bibkatalog.de/BV013298193 IS - 31 SP - 1779 EP - 1788 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Khlevnoy, B. A1 - Rougie, B. A1 - Gibson, C. A1 - Yoon, H. A1 - Gaertner, A. A1 - Taubert, Dieter Richard T1 - CCPR-S1 Supplementary Comparison for Spectral Radiance in the range of 220 nm to 2500 nm JF - Metrologia Y1 - 2009 UR - http://permalink.bibkatalog.de/BV012573233 IS - 46 SP - 174 EP - 180 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Krenek, S. A1 - Anhalt, Klaus A1 - Lindemann, A. A1 - Hollandt, Jörg T1 - A study on the feasibility of measuring the emissivity with the laser-flash method JF - International Journal of Thermophysics Y1 - 2010 UR - http://permalink.bibkatalog.de/BV013298193 IS - 31 SP - 998 EP - 1010 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Anhalt, Klaus A1 - Lindner, D. A1 - Krüger, U. T1 - Camera based investigation of high-temperature fixed-points for radiometric application JF - Metrologia Y1 - 2009 UR - http://permalink.bibkatalog.de/BV012573233 IS - 46 SP - 260 EP - 265 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Ojanen, M. A1 - Anhalt, Klaus A1 - Schiller, S. A1 - Weckström, T. A1 - Kärhä, P. A1 - Heinonen, M. A1 - Ikonen, E. T1 - Comparison of the radiation temperature scales between MIKES and PTB JF - Measurement Y1 - 2010 IS - 43 SP - 183 EP - 189 ER - TY - JOUR A1 - Höfflin, Dennis A1 - Sauer, Christian A1 - Schiffler, Andreas A1 - Hartmann, Jürgen T1 - Process Monitoring Using Synchronized Path Infrared Thermography in PBF-LB/M JF - Sensors N2 - Additive manufacturing processes, particularly Laser-Based Powder Bed Fusion of Metals (PBF-LB/M), enable the development of new application possibilities due to their manufacturing-specific freedom of design. These new fields of application require a high degree of component quality, especially in safety-relevant areas. This is currently ensured primarily via a considerable amount of downstream quality control. Suitable process monitoring systems promise to reduce this effort drastically. This paper introduces a novel monitoring method in order to gain process-specific thermal information during the manufacturing process. The Synchronized Path Infrared Thermography (SPIT) method is based on two synchronized galvanometer scanners allowing high-speed and high-resolution observations of the melt pool in the SWIR range. One scanner is used to steer the laser over the building platform, while the second scanner guides the field of view of an IR camera. With this setup, the melting process is observed at different laser powers, scan speeds and at different locations with respect to the laser position, in order to demonstrate the positioning accuracy of the system and to initially gain thermal process data of the melt pool and the heat-affected zone. Therefore, the SPIT system shows a speed independent overall accuracy of ±2 Pixel within the evaluated range. The system further allows detailed thermal observation of the melt pool and the surrounding heat-affected zone. KW - SPIT KW - PBF-LB/M KW - additive manufacturing KW - process monitoring KW - SWIR KW - melt pool KW - galvanometer scanner Y1 - 2022 U6 - https://doi.org/10.3390/s22165943 VL - 22 IS - 16 PB - MDPI ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Hollandt, Jörg A1 - Sakuma, F. A1 - Khlevnoy, B. A1 - Morozova, S. ED - Zhang, Z.M. ED - Tsai, B.K. ED - Machin, Graham T1 - Blackbody and other Calibration Sources, in Radiometric Temperature Measurements Part I Fundamentals T2 - Experimental Methods in the Physical Sciences Y1 - 2009 UR - http://permalink.bibkatalog.de/BV010604537 SN - 978-0-12-374021-2 VL - 42 SP - 241 EP - 295 PB - Elsevier Academic Press CY - Amsterdam ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Werner, L. A1 - Fischer, J. A1 - Johannsen, U. T1 - Accurate determination of the spectral responsivity of silicon trap detectors between 238 nm and 1015 nm using a laser-based cryogenic radiometer JF - Metrologia Y1 - 2000 UR - http://permalink.bibkatalog.de/BV012573233 IS - 37 SP - 279 EP - 284 ER - TY - CHAP A1 - Küchler, Andreas A1 - Reumann, Andreas A1 - Zink, M. A1 - Voll, S. A1 - Berger, Frank A1 - Langens, Achim A1 - Titze, J. T1 - Der Einfluss von Temperatur, Feldstärke und Atmosphäre auf die Alterung von OIP Hochspannungstransformatordurchführungen BT - ETG-Fachtagung „Diagnostik elektrischer Betriebsmittel“ T2 - ETG-Fachbericht 134 Y1 - 2012 PB - VDE CY - Fulda ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Voigt, P. A1 - Reichling, M. T1 - Measuring local thermal conductivity in polycrystalline diamond with a high resolution photothermal microscope JF - J. Appl. Phys. Y1 - 1997 UR - http://permalink.bibkatalog.de/BV013637659 IS - 81 SP - 2966 EP - 2977 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Fischer, J. A1 - Seidel, J. T1 - A non-contact technique providing improved accuracy in area measurements of radiometric apertures JF - Metrologia Y1 - 2000 UR - http://permalink.bibkatalog.de/BV012573233 IS - 37 SP - 637 EP - 640 ER - TY - CHAP A1 - Küchler, Andreas A1 - Schober, F. A1 - Zink, M. A1 - Liebschner, M. A1 - Krause, Ch. T1 - Diagnosis of HVDC Insulation Systems by use of Oil-conductivity Measuring Methods T2 - 2012 IEEE International Conference on Condition Monitoring and Diagnosis CMD Y1 - 2012 SP - 23 EP - 27 CY - Bali, Indonesia ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Werner, L. T1 - Calibration and interpolation of the spectral responsivity of silicon photodiode based detectors JF - Sensors & Actuators A: Physical Y1 - 2009 UR - http://permalink.bibkatalog.de/BV013197638 IS - 156 SP - 185 EP - 190 ER - TY - JOUR A1 - Hartmann, Jürgen A1 - Klotzbücher, T. A1 - Reichling, M. T1 - Local variation of room temperature thermal conductivity in high quality polycrystalline diamond JF - Appl. Phys. Lett. Y1 - 1998 IS - 73 SP - 756 EP - 758 ER -