In many research areas, it is necessary to get the distance data such as height and depth about specific structure. Most distance measurement system has common roblems such as touching the sensor on the object to get some data and environmental restriction. However, the laser interferometer system can overcome these problems. The laser nterferometer system uses laser beam as a light source which has monochromatic, coherent, and collimated characteristic. Not only measuring the distance but also many kinds of physical quantities can be measured by laser interferometer system. In this report, I would like to introduce about the concept, history, basic principle and the application areas of laser interferometer system.
Measuring system which is an object distance measure is basic methods to quantify the dimensions. This system is used at the daily living as well as widely used across industries and various research areas.
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