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在真空条件下对摩擦现象进行研究是摩擦学机理研究的重要组成部分,而摩擦温度的测量又是这一研究中的重要内容。但是由于真空摩擦试验机系统中存在着较强的干扰信号,使浏试到的有关摩擦温度的数据波动大、精度低,特别是在低速轻载摩擦热效应弱的情况下更为严重.作者在MT-1型真空摩擦磨损试验机上对原有的测温系统进行了改进。结果表明,通过采用差动放大电路,有效地抑制了系统的交又干扰信号,显著提高了摩擦温度的测量精度
The research of friction phenomenon under vacuum is an important part of tribological mechanism research, and the measurement of friction temperature is an important part of this research. However, due to the presence of strong interference signals in the vacuum friction testing machine system, the data on the friction temperature tested by Liu has been greatly fluctuated and of low precision, especially under the condition of low thermal effects of low-speed and light-load friction. MT-1 vacuum friction and wear testing machine on the original temperature measurement system has been improved. The results show that by using the differential amplifier circuit, the system can effectively restrain the crossover signal and significantly improve the measurement accuracy of the friction temperature