TY - CHAP A1 - Hartmann, Jürgen A1 - Reichling, M. ED - Scudieri, F. ED - Bertolotti, M. T1 - Complete characterisation of thermal heat transfer in high quality chemical vapour deposited diamond BT - AIP Conference Proceedings 463 T2 - Photoacoustic and Photothermal Phenomena Y1 - 1999 SP - 295 EP - 299 CY - Woodbury (New York) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Seubert, R. A1 - Zänglein, Marc T1 - Development of a Calliper to determine thermal conductivity BT - Science in Practice 2017 Y1 - 2017 SN - 978-963-429-131-2 SP - 21 EP - 27 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Zänglein, Marc A1 - Seubert, R. T1 - Development of a Calliper to determine thermal conductivity BT - Science in Practice 2017 Y1 - 2017 CY - Pécs (Ungarn) ER - TY - CHAP A1 - Manara, Jochen A1 - Hartmann, Jürgen A1 - Rydzek, M. A1 - Stark, Thomas A1 - Arduini-Schuster, Mariacarla A1 - Ebert, Hans-Peter T1 - Bestimmung des Emissionsgrades und Transmissionsgrades keramischer Materialien bei hohen Temperaturen BT - Temperatur 2013 Y1 - 2013 SN - 3-9810021-8-0 SP - 219 EP - 224 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Werner, L. T1 - Comparison and Evaluation of Different Models for the Interpolation of Spectral Responsivity Data T2 - Proceedings of NEWRAD Y1 - 2008 SP - 309 EP - 310 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Khlevnoy, B. A1 - Rougie, B. A1 - Gibson, C. A1 - Yoon, H. A1 - Gärtner, A. A1 - Taubert, Dieter Richard T1 - CCPR-S1 Supplementary Comparison for Spectral Radiance in the range of 220 nm to 2500 nm T2 - Proceedings of NEWRAD Y1 - 2008 SP - 241 EP - 242 ER - TY - CHAP 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 BT - Newrad’99 Y1 - 1999 CY - Madrid (Spanien) ER - TY - GEN A1 - Hartmann, Jürgen A1 - Reichling, M. T1 - A new insight into local heat transfer in polycrystalline diamond BT - Diamond ´97 (Poster) Y1 - 1997 CY - Edinburgh (Schottland) ER - TY - GEN A1 - Hartmann, Jürgen A1 - Reichling, M. T1 - Quantitative photothermal measurement of thermal barriers in CVD-Diamond BT - Diamond ´97 (Poster) Y1 - 1997 CY - Edinburgh (Schottland) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Reichling, M. A1 - Matthias, E. T1 - Thermoreflectance measurements of single thermal barriers in CVD-Diamond BT - 9th International conference on Photothermal and Photoacoustic Phenomena Y1 - 1996 CY - Nanjing (China) ER - TY - CHAP A1 - Hartmann, Jürgen T1 - Photothermal microscopy on CVD-diamond BT - Workshop´95 Photoacoustics and Photothermics Y1 - 1995 CY - Ebernburg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Nilsson, O. A1 - Fricke, J. T1 - Thermal diffusivity measurements on two-layered systems with the laser-flash method BT - 13th European Conference on Thermophysical Properties Y1 - 1993 CY - Lissabon (Portugal) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Manara, Jochen A1 - Mehling, H. T1 - The role of the index of refraction in the generation and propagation of blackbody radiation BT - Tempemko 2013 Y1 - 2013 CY - Funchal (Portugal) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Manara, Jochen A1 - Ebert, Hans-Peter A1 - Lenhart-Rydzek, M. A1 - Tutschke, Andreas A1 - Hallam, Andrew T1 - LWIR pyrometry for the measurement of thermal barrier coatings within the EU project STARGATE BT - Tempmeko 2013 Y1 - 2013 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Lenhart-Rydzek, M. A1 - Stark, Thomas A1 - Arduini-Schuster, Mariacarla A1 - Manara, Jochen T1 - Enhanced measuring technique to determine the angle dependent surface emittance from 200 °C up to 1600 °C BT - Tempmeko 2013 Y1 - 2013 CY - Funchal (Portugal) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Harrer, S. A1 - Dotterweich, C. A1 - Zink, Markus H. T1 - On the conduction process of dielectric liquids based on mineral oil BT - International Symposium on High Voltage Engineering 2017 Y1 - 2017 CY - Buenos Aires (Argentinien) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Taubert, Dieter Richard T1 - Assessing blackbody emissivity by Monte Carlo Simulation BT - IRS² 2002 Y1 - 2002 CY - Erfurt ER - TY - CHAP A1 - Hartmann, Jürgen T1 - New developments in high-temperature measurement techniques BT - Science in Practice 2014 Y1 - 2014 CY - Osijek (Kroatien) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Knopp, Kevin A1 - Lenski, Philipp A1 - Ochs, Dennis A1 - Zänglein, Marc A1 - Stark, Thomas A1 - Zipf, Matthias A1 - Arduini, Mariacarla A1 - Hemberger, Frank A1 - Vidi, Stephan A1 - Manara, Jochen A1 - Müller, Michael A1 - Möller, F. T1 - Systematische thermophysikalische Charakterisierung von Wärmedämmschichten BT - Sensoren und Messsysteme 2019 Y1 - 2019 CY - Nürnberg ER - TY - GEN A1 - Hartmann, Jürgen A1 - Knopp, Kevin A1 - Zänglein, Marc A1 - Manara, Jochen A1 - Stark, Thomas A1 - Zipf, Matthias A1 - Schreiber, Ekkehard A1 - Krüger, U. A1 - Brunner, Martin A1 - Müller, Michael T1 - Messsystem für dynamische Materialuntersuchung bei hohen Temperaturen BT - Sensoren und Messsysteme 2018 (Poster) Y1 - 2018 CY - Nürnberg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Manara, Jochen A1 - Stark, Thomas A1 - Zipf, Matthias A1 - Arduini, Mariacarla A1 - Ebert, Hans-Peter A1 - Tutschke, Andreas A1 - Hallam, Andrew A1 - Hanspal, Jagdevinder A1 - Langley, Mark T1 - Entwicklung und Test eines langwelligen Strahlungsthermometers zur berührungslosen Temperaturmessung in Gasturbinen während des Betriebs BT - Temperatur 2017 Y1 - 2017 SN - 978-3-944659-04-6 SP - 43 EP - 48 CY - Berlin ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Manara, Jochen A1 - Zipf, Matthias A1 - Stark, Thomas A1 - Arduini, Mariacarla A1 - Knopp, Kevin A1 - Lenski, Philipp A1 - Ochs, Dennis A1 - Zänglein, Marc A1 - Schreiber, Ekkehard A1 - Schmidt, Franz T1 - Experimental set-up for dynamic material investigation at high-temperatures for power engineering and additive manufacturing BT - 44. Freiburger Infrarot Kolloquium Y1 - 2019 CY - Freiburg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Tegeler, E. T1 - Activities in the field of legal metrology and standardisation of clinical thermometers BT - Tempmeko 2004 Y1 - 2004 CY - Dubrovnik (Kroatien) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Gutschwager, B. A1 - Hollandt, Jörg T1 - PTB Activities in the Field of Testing and Calibration of Clinical IR Ear Thermometers BT - IRS² 2004 Y1 - 2004 CY - Nürnberg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Machin, Graham A1 - Beynon, G. A1 - Fourrez, S. A1 - Lowe, D. A1 - Morice, R. A1 - Sadli, M. A1 - Villamanan, M. T1 - HIMERT: A pan-European project for development of metal-carbon eutectics as temperature standards BT - Temperature 2002 Y1 - 2002 CY - Chicago (USA) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Taubert, D. A1 - Hollandt, Jörg A1 - Fischer, J. T1 - Investigation of the accuracy of the ITS-90 with reference to thermodynamic temperature in the range from 400 °C to 600 °C BT - Temperature 2002 Y1 - 2002 CY - Chicago (USA) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - McEvoy, H.C. A1 - Machin, Graham A1 - Friedrich, R. A1 - Hollandt, Jörg T1 - Comparison of the new NPL primary standard Ag fixed-point blackbody source with the primary standard fixed-point of PTB BT - Temperature 2002 Y1 - 2002 CY - Chicago (USA) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Bloembergen, P. A1 - Sasajima, N. A1 - Yamada, Y. T1 - Comparing alternative schemes for realizing the high-temperature part of a future ITS-20XX with the aid of metal-carbon eutectic fixed points BT - Temperature 2002 Y1 - 2002 CY - Chicago (USA) ER - TY - GEN A1 - Hartmann, Jürgen A1 - Taubert, Dieter Richard A1 - Friedrich, R. A1 - Hollandt, Jörg T1 - Improved calibration of the spectral responsivity of interference filter radiometers in the visible and near infrared spectral range at PTB BT - Newrad 2002 (Poster) Y1 - 2002 CY - Gaithersburg (USA) ER - TY - GEN A1 - Hartmann, Jürgen A1 - Fischer, J. A1 - Seidel, J. T1 - Improved accuracy in measurement of radiometric apertures with a non-contact technique BT - Newrad’99 (Poster) Y1 - 1999 CY - Madrid (Spanien) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Völker, S. T1 - Thermisches Management von Lichtquellen BT - Sensoren und Messsysteme 2010 Y1 - 2010 CY - Nürnberg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Völker, S. T1 - Thermal Management an Lichtquellen BT - Temperatur 2009 Y1 - 2009 CY - Berlin ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Taubert, Dieter Richard A1 - Monte, C. A1 - Baltruschat, C. A1 - Gutschwager, B. A1 - Hollandt, Jörg A1 - Kochems, D. A1 - Küchel, C. A1 - te Plate, M. T1 - Radiometric calibration of the NIRSpec instrument on the James Webb Space Telescope in the wavelength range from 0.7 µm to 5.0 µm BT - IRS² 2009 Y1 - 2009 UR - https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=a3bb797fd2e46dfe0b642a9a63dfac14a34b4d7c CY - Nürnberg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Taubert, Dieter Richard A1 - Monte, C. A1 - Gutschwager, B. A1 - Baltruschat, C. A1 - Hollandt, Jörg A1 - Kochems, D. A1 - Küchel, C. T1 - The Spectral Photon Flux of the Radiometric Calibration Spectral Source for the NIRSpec Instrument of the James Webb Space Telescope T2 - Proceedings of NEWRAD Y1 - 2008 SP - 79 EP - 80 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Gutschwager, B. A1 - Hollandt, Jörg T1 - A novel lens-free high-accuracy InGaAs radiation thermometer for radiation temperatures above 300 °C T2 - VDI-Bericht 1784 Y1 - 2003 SP - 155 EP - 162 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Sakuma, F. A1 - Ma, L. T1 - Intercomparison of radiation temperatures scales between PTB and NMIJ from 1000 °C and 2500 °C T2 - Proceedings of SICE 2002 Y1 - 2002 SP - 111 EP - 115 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Gutschwager, B. A1 - Fischer, Joachim A1 - Hollandt, Jörg T1 - Calibration of thermal cameras for temperature measurements using blackbody radiation in the temperature range -60°C up to 3000 °C BT - AMA Service GmbH T2 - Proceedings of the International Conference Infrared Sensors & Systems Y1 - 2002 SP - 119 EP - 124 ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Gutschwager, B. A1 - Fischer, Joachim A1 - Hollandt, Jörg T1 - Calibration of thermal cameras for temperature measurements using blackbody radiation in the temperature range –60 °C up to 3000 °C T2 - IRS² 2002 Y1 - 2002 CY - Erfurt ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Taubert, Dieter Richard A1 - Monte, C. A1 - Gutschwager, B. A1 - Hollandt, Jörg T1 - Traceable Calibration of Radiation Sources from the Visible to the Far Infrared for Space Borne Applications at PTB BT - SPIE Konferenz Remote Sensing Y1 - 2009 CY - Berlin ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Werner, L. T1 - Calibration and interpolation of the spectral responsivity of silicon photodiode based detectors BT - Eurosensors 2008 Y1 - 2008 CY - Dresden ER - TY - GEN A1 - Hartmann, Jürgen A1 - Edler, F. T1 - Simultaneous contact and non-contact measurements of the melting temperature of a N-C fixed-point cell BT - Tempmeko 2007 (Poster) Y1 - 2007 CY - Banf (Kanada) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Werner, L. T1 - Radiation thermometry towards the triple point of water? BT - Tempmeko 2007 Y1 - 2007 CY - Banf (Kanada) ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Machin, Graham A1 - Bloembergen, P. A1 - Sadli, M. A1 - Yamada, Y. T1 - A concerted international project to establish hig-temperature fixed-points for primary thermometry BT - Tempmeko 2007 Y1 - 2007 CY - Banf (Kanada) 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 - Manara, Jochen A1 - Zipf, Matthias A1 - Stark, Thomas A1 - Arduini, Mariacarla A1 - Ebert, Hans-Peter A1 - Tutschke, Andreas A1 - Hallam, Andrew A1 - Hanspal, Jagdevinder A1 - Langley, Mark A1 - Hodge, D. T1 - Development of Long Wavelength Infrared Radiation Thermometry for Measurements in Gas Turbines BT - Key Note Lecture MSE 2016 Y1 - 2016 CY - Darmstadt ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Knopp, Kevin A1 - Lenski, Philipp A1 - Zänglein, Marc A1 - Manara, Jochen A1 - Stark, Thomas A1 - Zipf, Matthias A1 - Arduini, Mariacarla A1 - Schreiber, Ekkehard A1 - Krüger, U. A1 - Schmidt, Franz A1 - Brunner, Martin T1 - Sensor systems for additive manufacturing Y1 - 2018 PB - Key Note Lecture MSE 2018 CY - Darmstadt ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Reichling, M. ED - Nazaré, H. ED - Neves, A.J. T1 - Thermal characterization of diamond materials T2 - Properties and growth of diamond Y1 - 2001 UR - https://books.google.de/books?id=jtC1mUFZfQcC&printsec=frontcover PB - Institution of Electrical Engineers CY - London ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Anhalt, Klaus A1 - Hollandt, Jörg A1 - Taubert, Dieter Richard A1 - Werner, L. T1 - Optische Hochtemperaturmesstechnik für die Thermometrie, Radiometrie und Photometrie BT - Sensoren und Messsysteme 2010 Y1 - 2010 CY - Nürnberg ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Ochs, Dennis A1 - Lenski, Philipp A1 - Schiffler, Andreas A1 - Versch, Alexander A1 - Manara, Jochen T1 - Thermal process monitoring for additive manufacturing BT - MSE 2020 Y1 - 2020 CY - Darmstadt ER - TY - CHAP A1 - Hartmann, Jürgen A1 - Lenski, Philipp A1 - Ochs, Dennis A1 - Shandy, Amir A1 - Winterstein, A. A1 - Versch, Alexander A1 - Schiffler, Andreas T1 - Thermische Prozessüberwachung für additive Fertigungsverfahren BT - Temperatur 2020 Y1 - 2020 CY - Berlin ER -