接触疲劳是滚动轴承、齿轮等一类机件的接触表面在接触压应力的反复长期作用后所引起的一种表面疲劳剥落损坏现象(称为麻点)。研究接触疲劳问题对提高这些零件的使用寿命有着重要的意义。在接触疲劳的试验研究中,如何精确监测试样的剥落状态,直接影响着试验数据的准确性与可靠性。所以,国内很多有关单位在研究监测麻点剥落的各种方法。由于至今未见有较完善 Contact fatigue is a rolling bearing, gear and other mechanical parts of the contact surface in contact with the repeated long-term effect of compressive stress caused by a surface fatigue spalling damage phenomenon (known as pitting). Studying the problem of contact fatigue is of great importance to improve the service life of these parts. In the experimental study of contact fatigue, how to accurately monitor the spalling state of the sample directly affects the accuracy and reliability of the experimental data. Therefore, many domestic organizations are studying ways to monitor pitting flaking. As has not seen more perfect