photoelectric sensor

• 光电传感器

photoelectric sensor的用法和样例：

例句

1. The reflector will be vibrated when the object is slipping,thus the output signal of the photoelectric sensor will be changed.
   当物体有相对滑动时会引起反射镜面的振动，由此引起光电传感器的输出信号发生变化。
2. When the pest crawls through the electro-optical sensor, it will produce a high level signals and begins to count the pulse signal, the count to the pest's number can be realized.
   当虫子通过光电传感器时，光电传感器输出高电平信号对脉冲信号进行计数，就实现了对虫子数量的统计。