The principle of Laser Interferometer and its formula for length measuring are discussed in this paper.
分析了激光干涉系统的原理，给出了长度测量的计算公式。
The paper introduces the basic principle of measuring displacement with laser interferometer, and gives a designing idea that realizes length measurement and angle measurement on one apparatus.
介绍了激光干涉法长度测量的基本原理，提出在不更换和调整系统中光学器件的条件下，实现线位移和角位移—机测量集成装置的设计思想。
The method of measuring the coherent length of the sunlight and the thickness of glass with Michelson interferometer is presented.
本文介绍了用迈克尔逊干涉仪测量白光的相干长度及玻璃片厚度的方法。
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