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本文介绍了一种光学孔径测量仪．分析和试验表明，该仪器不仅可测量光洁的表面，也可测量粗糙的圆柱面。测量精度相当高，并可实现自动测量
This article describes an optical aperture meter. Analysis and testing show that the instrument can not only measure the smooth surface, but also measure the rough cylindrical surface. Measurement accuracy is very high, and can automatically measure