PSD及其在非接触测量中的应用

详细信息

PSD and its application in non contact measurement

摘要: 介绍了一种光电位敏探测器PSD及其在非接触测量中的应用,同时给出测量原理和PSD的前置适配电路.
- 位敏探测器 /
- 非接触测量 /
- 三角测量原理
Abstract: This paper introduces a position sensitive detector and a non contact position detection system.The system include a laser diode light source,a imaging optical system and a image position sensitive detector.The surface of a body is illuminated with the light source and imaged on the sensitive surface of the detector.According to the relationship between the body and its image,the deviation of the body can be calculated.The measurement accuracy of the deviation depends on the position discriminativity.In our system,the position discriminativity of the detector is 2 micron,the measurement error is less than 5 micron.
- position sensitive detector /
- non-contact measurement /
- triangulation measurement principle

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