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本文介绍一种集光学方法和机械接触方法优点于一体，用于测量发动机喷油嘴微小喷油孔尺寸和形状的测量系统，并首次给出对直径２１４μｍ的油嘴微小喷油孔尺寸和形状的测量结果。该系统测头直径为４０μｍ～１００μｍ，测量精度优于１μｍ，测量力小于１０μＮ。
This paper introduces a set of optical methods and mechanical contact method merging into one, used to measure the size and shape of the micro injector nozzle injection system and the measurement system, and for the first time gives the nozzle diameter of 214μm tiny nozzle hole size and shape Measurement results. The system probe diameter 40μm ~ 100μm, measurement accuracy better than 1μm, measuring force is less than 10μN.