德国SCHMERSAL接近开关的设计及工作原理：
    施迈赛接近开关是不通过接触就能使开关动作的装置。接近开关能够检测进入到它们感应区域内的物体。这些产品均一体化结构，包括有区域信号发生器，放大器和其他必要的电路。

    德国原装SCHMERSAL接近开关是种开关型传感器（即无触点开关），它既有行程开关、微动开关的特性，同时具有传感性能，且动作可靠，性能稳定，频率响应快，应用寿命长，抗干扰能力强等、并具有防水、防震、耐腐蚀等特点。产品有电感式、电容式、霍尔式、交、直流型。

    上海维特锐直接从德国SCHMERSAL原厂家拿货，直接供应各种SCHMERSAL感应传感器，施迈赛磁性开关，施迈赛安全开关

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