Proximity sensor

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Proximity Sensor - a type of sensor that responds to a subject's proximity when the distance between them is less than a certain distance that depends on the construction and technology of the work. These sensors output a binary signal, thus accepting two possible values: zero or one. A change in the output state is due to the effect of a moving object that modifies the parameters of the sensor's electrical circuits. In particular, it also depends on whether the object is made of a conductor or a dielectric.

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