德國SCHMERSAL接近開關(guān)的設計及工作原理：
    施邁賽接近開關(guān)是不通過接觸就能使開關(guān)動作的裝置。接近開關(guān)能夠檢測進入到它們感應區(qū)域內(nèi)的物體。這些產(chǎn)品均一體化結(jié)構(gòu)，包括有區(qū)域信號發(fā)生器，放大器和其他必要的電路。

    德國原裝SCHMERSAL接近開關(guān)是種開關(guān)型傳感器（即無觸點開關(guān)），它既有行程開關(guān)、微動開關(guān)的特性，同時具有傳感性能，且動作可靠，性能穩(wěn)定，頻率響應快，應用壽命長，抗干擾能力強等、并具有防水、防震、耐腐蝕等特點。產(chǎn)品有電感式、電容式、霍爾式、交、直流型。

    上海維特銳直接從德國SCHMERSAL原廠家拿貨，直接供應各種SCHMERSAL感應傳感器，施邁賽磁性開關(guān)，施邁賽安全開關(guān)

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