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Proceedings Paper

Application of fiber laser in time constant measurement of thin wire thermal resistor
Author(s): Junwei Zhao; Shuanglian Feng; Zhigang Zhang; Xiwen Qiang; Fei Zong; Gang Feng; Yuehong Hu
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Paper 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.

Paper Details

Date Published: 26 January 2016
PDF: 8 pages
Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97960C (26 January 2016); doi: 10.1117/12.2229467
Show Author Affiliations
Junwei Zhao, Northwest Institute of Nuclear Technology (China)
Shuanglian Feng, Northwest Institute of Nuclear Technology (China)
Zhigang Zhang, Northwest Institute of Nuclear Technology (China)
Xiwen Qiang, Northwest Institute of Nuclear Technology (China)
Fei Zong, Northwest Institute of Nuclear Technology (China)
Gang Feng, Northwest Institute of Nuclear Technology (China)
Yuehong Hu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 9796:
Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015
Weimin Bao; Yueguang Lv, Editor(s)

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