歐姆龍omron  HL-5030接近開關(guān) 限位開關(guān) 行程開關(guān) 微動開關(guān)防水防油

接近開關(guān)是一種無需與運動部件進行機械直接接觸而可以操作的位置開關(guān)，當物體接近開關(guān)的感應(yīng)面到動作距離時，不需要機械接觸及施加任何壓力即可使開關(guān)動作，從而驅(qū)動直流電器或給計算機（plc)裝置提供控制指令。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(yīng)快，應(yīng)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。

Omron HL-5030 proximity switch limit switch travel switch microswitch waterproof and oil proof

A proximity switch is a position switch that can be operated without direct mechanical contact with moving parts. When an object approaches the sensing surface of the switch to the operating distance, it can be actuated without mechanical contact and applying any pressure, thereby driving DC appliances or providing control commands to computer (PLC) devices. The proximity switch is a switch type sensor (i.e., a contactless switch) that combines the characteristics of a travel switch and a microswitch with sensing performance, reliable action, stable performance, fast frequency response, long application life, strong anti-interference ability, and features water resistance, shock resistance, and corrosion resistance. Products include inductive, capacitive, Hall, AC, and DC types.