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YAMATAKE開關FL7M-3J6HD-L5 現貨供應                                                                                                   光電開關（光電傳感器）是光電接近開關的簡稱，它是利用被檢測物對光束的遮擋或反射，由同步回路選通電路從而檢測物體有無的。物體不限于金屬，所有能反射光線的物體均可被檢測。光電開關將輸入電流在發射器上轉換為光信號射出，接收器再根據接收到的光線的強弱或有無對目標物體進行探測。安防系統中常見的光電開關煙霧報警器，工業中經常用它來記數機械臂的運動次數。                         FL7M-7K6H       FL7M-10J6D      FL7M-10K6  FL7M-4J6ND   FL7M-4K6N
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光控開關與光電開關的區別  1、首先可以確定光控開關不屬于光電開關。 　　                                   2、光電開關是通過把光強度的變化轉換成電信號的變化來實現控制的。它是利用被檢測物體對紅外光束（區分點）的遮光或反射，由同步回路選通而檢測物體的有無，其物體不限于金屬，對所有能反射光線的物體均可檢測。光電開關在一般情況下，有三部分構成，它們分為：發送器、接收器和檢測電路。 　　 根據檢測方式的不同，紅外線光電開關可分為：（1）.漫反射式光電開關 　（2）.鏡反射式光電開關 　　 （3）.對射式光電開關 　光電開關工作原理（4）.槽式光電開關 （5）.光纖式光電開關                      3、光控開關，它的“開”和“關”是靠可控硅的導通和阻斷來實現的，而可控硅的導通和阻斷又是受自然光（區分點）的亮度（或人為亮度）的大小所控制的。該裝置適合作為街道、宿舍走廊或其它公共場所照明燈，起到日熄夜亮的控制作用，以節約用電。 　　                                                                     4 、光電開關應用的環境是影響其長期工作可靠性的重要條件。當光電開關工作于zui大檢測距離狀態時，由于光學透鏡會被環境中的污物粘住，甚至會被一些強酸性物質腐蝕，以至降低使用參數特性。但光控開關不受