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齿轮啮合区瞬时温度的测量是研究塑料及其复合材料齿轮的强度和寿命的关键．但配对齿面在啮合接触区彼此复盖，不能为现代非接触式测温方法（例如红外热像仪探测头）所到达．本文采用在红外热相技术定位下的微型热电偶测量技术．又在测量系统中，通过引入自行设计的轴端集流环前置放大器和微机软件数据处理等先进手段，从根本上提高了对热电动势微信号的频率响应和信噪比．从而首次真正实现了啮合区各点闪光温度和瞬时温度的测量．
The measurement of the instantaneous temperature at the meshing area of the gears is the key to studying the strength and life of the gears of plastics and their composites. However, the mating tooth surfaces cover each other at the mating contact area and can not be reached by modern non-contact temperature measurement methods such as the infrared camera probe. In this paper, the thermocouple measurement technology in the infrared thermal phase technology positioning. In the measurement system, the introduction of self-designed shaft-end current-collecting loop preamplifier and microcomputer software data processing and other advanced means to fundamentally improve the frequency response and signal-to-noise ratio of the micro-signal of the thermoelectromotive force. Thus, for the first time, the flash temperature and the instantaneous temperature at each point of the meshing zone are truly measured.