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光电开关

网址:www.coron.com.cn  2019-02-01  作者:admin    阅读:

光电开关是光电接近开关的简称,它是利用被检测物对光束的遮挡或反射,由同步回路接通电路,从而检测物体的有无。物体不限于金属,所有能反射光线(或者对光线有遮挡作用)的物体均可以被检测。光电开关将输入电流在发射器上转换为光信号射出,接收器再根据接收到的光线的强弱或有无对目标物体进行探测。安防系统中常见的光电开关烟雾报警器,工业中经常用它来计数机械臂的运动次数。
Photoelectric switch is the abbreviation of photoelectric proximity switch. It uses the occlusion or reflection of the detected object to the beam, and the circuit is connected by the synchronous circuit to detuogun.37ix.com.cngeshanban.37ix.com.cnshusongdaij.07858.net shusongdaiu.07858.net yajieji.07858.net fangbaohulu.07858.nettect the presence or absence of the object. Objects are not limited to metals, and all objects that reflect (or block) light can be detected. The photoelectric switch converts the input current into the light signal which is emitted from the transmitter. The receiver detects the target object according to the received light intensity or whether or not. The common photoelectric switch smoke alarm in the security system is often used in industry to count the movement times of the manipulator.

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