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介绍了1种新近开发的齿轮接触斑点测量仪。该仪器利用先进的CCD光电接收器件作测量传感器，并利用IBMPC／XT计算机作数据和图象处理，使齿轮接触斑点的测量从测量精度和效率方面都比传统的目视观察、手工描绘提高一大步。本文着重讨论仪器光学机械系统的原理结构。
A newly developed gear contact spot meter is introduced. The instrument uses advanced CCD photoelectric receiver for measuring sensors, and the use of IBMPC / XT computer for data and image processing, the measurement of gear contact spots from the measurement accuracy and efficiency than the traditional visual observation, hand-painted to enhance a Stride This article focuses on the principle structure of the optical system of the instrument.