A capacitive touch membrane switch is a switch that uses the principle of capacitance to detect the approach or distance of an object. It usually consists of two layers of conductive material with a layer of insulating material sandwiched between them. When an object approaches the capacitive induction film switch, its electrostatic field will change the electric field distribution in the capacitive touch membrane switch, thus changing the capacitance value. This change in capacitance value can be detected and used to trigger the switch. Capacitive touch membrane switches have many advantages, such as high reliability, low power consumption, short response time and long life. They are widely used in automation control systems, safety protection systems and industrial production lines.
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