Abstract
To reduce uncertainty of calibrations of contact thermometers using dry block calibrators, a concept was developed at Institute for Process Measurement and Sensor Technology of Technische Universität Ilmenau. This concept uses a multi-zone heating, heat flux sensors and a multiple fixed-point cell. The paper shows the concept and its validation on the basis of a dry block calibrator with a working temperature range of \(70\,^{\circ }\hbox {C}\) to \(430\,^{\circ }\hbox {C}\). The experimental results show a stability of \({\pm } 4\,\hbox {mK}\) for the reference temperature and axial temperature differences in the normalization block less than \({\pm }55\,\hbox {mK}\).
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Acknowledgements
The authors would like to thank the German Federal Ministry of Education and Research (BMBF) for founding the project “TempKal” in the VIP-program.
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Selected Papers of the 13th International Symposium on Temperature, Humidity, Moisture and Thermal Measurements in Industry and Science.
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Hohmann, M., Marin, S., Schalles, M. et al. Dry Block Calibrator with Improved Temperature Field and Integrated Fixed-Point Cells. Int J Thermophys 38, 17 (2017). https://doi.org/10.1007/s10765-016-2155-9
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DOI: https://doi.org/10.1007/s10765-016-2155-9