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投影立式光学计是工厂常用的精密仪器之一。仪器在使用过程中 ,易产生诸多的不稳定测量因素 ,导致测量误差过大。下面主要从两个方面分析测量过程中示值不稳定的原因以及调修方法。一、μｍ标尺在视场中产生的不稳定因素1 标尺斜向运动的两种情况1)旋转微动调“0”手轮使标尺移
Projection vertical optical meter is one of the precision instruments commonly used in the factory. Instrument in use, easy to produce a lot of unstable measurement factors, resulting in measurement error is too large. The following two main aspects from the analysis of the process of measuring the value of instability reasons and methods of repair. A, um ruler in the field of view of instability factors 1 scale two cases of oblique motion 1) rotary micro-tune “0” handwheel to move the scale