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中沪牌光电开关是采用脉冲调制的主动式光电探测系统的一种电子开关,使用的冷光源有红外光,红色光,绿色光、兰色光等,可非接触无损伤检测各种固体、液体、透明体、黑体、柔软体和烟雾等。 众所周知,接触式行程开关存在响应速度低、精度差、接触检测容易损坏被检测物及寿命短等弱点,晶体管接近开关作用距离近、不能直接检测非金属材料,以往的白炽灯非调制
Shanghai and Shanghai brand photoelectric switch is an electronic switch using pulse modulation active photoelectric detection system, the use of cold light source infrared light, red light, green light, blue light, non-contact non-damage detection of various solids, liquids , Transparent body, black body, soft body and smoke. As we all know, contact-type switch has low response speed, poor accuracy, contact detection is easy to damage the detected objects and short life and other weaknesses, proximity switches close to the role of the transistor can not be directly detected non-metallic materials, the incandescent non-conventional modulation