Time constant measurement of thermocouple by use of modulated laser

Lina Hao; Xiaojian Hao; Sanping Jiang; Hanchang Zhou; Liang Huang

doi:10.1117/12.867249

22 October 2010 Time constant measurement of thermocouple by use of modulated laser

Lina Hao, Xiaojian Hao, Sanping Jiang, Hanchang Zhou, Liang Huang

Proceedings Volume 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology; 765814 (2010) https://doi.org/10.1117/12.867249
Event: 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2010, Dalian, China

Abstract

A new time constant measurement means of the surface temperature sensor is proposed, in which a high frequency modulated high power CO₂ laser acts as the driving source. The measurement system is designed and practiced in thermocouples with different temperature ranges. It is proved that the system can be used to measure transient surface temperature sensor which be with a time response from the sub-millisecond level to the second level, and the temperature provided by the driving source can range from the room temperature to the high temperature.

Citation Download Citation

Lina Hao, Xiaojian Hao, Sanping Jiang, Hanchang Zhou, and Liang Huang "Time constant measurement of thermocouple by use of modulated laser", Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 765814 (22 October 2010); https://doi.org/10.1117/12.867249

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