怎么判断光电开关坏了 怎么测光电开关有没有坏

综合百科2023-03-13 02:53:15佚名

1、找到光电开关的四个引脚,并将相邻两个引线划分为一组;

2、调万用表,并测量引脚电阻,区分红外光二极管和光敏晶管;

3、将万用表与导线连接,黑笔接光电开关,看指针是否会产生偏转,从而判断光电开关是好是坏。

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