Improved Method of Excitation Signal in Transient Temperature Calibration System Based on Laser

被引：0
|
作者：
Zhang, Zhijie [1 ,2 ]
Li, Yanfeng [2 ]
Chen, Hang [2 ]
Zhao, Chenyang [2 ]
Yin, Wuliang [2 ,3 ]
机构：
[1] North Uniers China, Minist Educ, Key Lab Instrumentat Sci & Dynam Measurement, Taiyuan, Peoples R China
[2] North Uniers China, Sch Instrument & Elect, Taiyuan, Peoples R China
[3] Univ Manchester, Sch Elect & Elect Engn, Manchester, Lancs, England
来源：
2019 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC) | 2019年
关键词：
temperature sensor calibration; homogenization; micro lens array; laser attenuation; wedge prism;
D O I：
10.1109/i2mtc.2019.8827091
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In order to improve excitation signal of temperature sensor calibration system based on laser, an approach to laser homogenization is established. The homogenization principle, laser attenuation measurement, temperature change in the laser spot, and its uniformity of excitation signal in the system are studied and analyzed. The experimental results show that the laser can be effectively homogenized by use of imaging micro lens array, and the uniformity deviation is about 9.3%. The laser can be attenuated via wedge prism to 0.51% of its power with approximately same distribution. It is verified that uniformity of excitation temperature signal in the system can be improved.
引用
收藏
页码：126 / 130
页数：5
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