基于红外辐射原理的高速滑动电接触温度测量

在高速滑动电接触过程中，接触表面会产生焦耳热、电弧等电气现象，导致接触温度发生突变，而温度是接触材料的导电性能及磨擦磨损的重要影响因素之一。提出了一种瞬态高温测量方法，用于测量高速滑动接触瞬间产生的温度变化。基于红外辐射原理，考虑大电流条件下的强电磁场测量环境，设计了相应的测量系统，主要包括光纤测温探头、隔离模块和高速采集模块。用黑体炉对该系统进行了标定，在高速滑动试验机上对该系统性能进行了实验验证，结果表明，该系统可对600℃~2000 ℃温度范围进行非接触有效测量，精度高、响应时间短，适用于高速滑动电接触等特殊环境下的瞬态高温测量。

Abstract

In the process of high speed sliding electrical contact, the contact surface will produce electric phenomenon such as joule heat, arc, etc., that will lead to contact temperature mutations. Temperature is one of the key factors of the materials′ conductivity and friction and wear. In order to measure the instant changes in temperature of high speed sliding contact, a transient temperature measurement method is proposed. A measurement system is designed based on the principle of infrared radiation in view of the high voltage and large current environment. This system contains optical fiber temperature measuring probe, isolation module and high-speed data acquisition module. Calibration experiment is performed with blackbody furnace, and verification experiment on the performance of the system is performed in the high-speed sliding experimental machine. The results show that the system′s effective temperature range for non-contact measurement can be 600 ℃~2000 ℃, and it has high accuracy and short response time. It is suitable for transient high temperature measurement such as the special environment of high speed sliding electrical contact.

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张玉燕, 王微, 王振春, 温银堂, 战再吉. 基于红外辐射原理的高速滑动电接触温度测量[J]. 光学学报, 2013, 33(11): 1112004. Zhang Yuyan, Wang Wei, Wang Zhenchun, Wen Yintang, Zhan Zaiji. Temperature Measurement on High Speed Sliding Electrical Contact Based on Principle of Infrared Radiation[J]. Acta Optica Sinica, 2013, 33(11): 1112004.

基于红外辐射原理的高速滑动电接触温度测量

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