Application of fiber laser in time constant measurement of thin wire thermal resistor

Junwei Zhao M.D.; Shuanglian Feng; Zhigang Zhang; Xiwen Qiang; Fei Zong; Gang Feng; Yuehong Hu

doi:10.1117/12.2229467

26 January 2016 Application of fiber laser in time constant measurement of thin wire thermal resistor

Junwei Zhao M.D., Shuanglian Feng, Zhigang Zhang, Xiwen Qiang, Fei Zong, Gang Feng, Yuehong Hu

Proceedings Volume 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015; 97960C (2016) https://doi.org/10.1117/12.2229467
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held November 2015, 2015, Various, China

Abstract

Measuring principle of time constant for thin wire thermal resistor was put forward. An 1.07μm fiber laser was used to output a rectangle laser pulse with edges of several tens microns and width of 100ms, and the thermal resistor under test was shined by the laser. As a result, the temperature of the thermal resistor rose and gradually went up to a fixed level with the irradiation. And then the thermal resistor’s temperature dropped and gradually went down to the room temperature with the laser powered off. Time constant of the thermal resistor could be obtained by means of measuring the temperature variation of the thermal resistor due to the laser pulse. A device was designed and experiments were carried out, the time constants of three commonly used thin wire thermal resistors were measured.

Citation Download Citation

Junwei Zhao M.D., Shuanglian Feng, Zhigang Zhang, Xiwen Qiang, Fei Zong, Gang Feng, and Yuehong Hu "Application of fiber laser in time constant measurement of thin wire thermal resistor", Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97960C (26 January 2016); https://doi.org/10.1117/12.2229467

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