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1引言光电传感器是指利用光电效应作为传感原理的传感器件,它主要由光源、光学通路、光电探测器等部分。光源发出的光照射到待检测的目标物体上,被目标物体调制后被光电探测器所接收。检测物参量的变
1 Introduction Photoelectric sensor refers to the use of photoelectric effect as the sensing principle of sensing devices, which mainly by the light source, optical access, photodetectors and other parts. The light emitted by the light source irradiates the target object to be detected and is modulated by the target object and received by the photodetector. Detection of the variable parameters