capacitive sensor

A capacitive sensor detects changes in electrical charge caused by the presence or absence of a conductive object, like a human finger. It works by generating an electric field; when a conductive object comes near, it disturbs this field, altering its capacitance. The sensor detects this change to identify the object's proximity or touch. Commonly used in touchscreens and proximity detectors, capacitive sensors are precise, responsive, and can sense without physical pressure, making them ideal for modern interactive devices and safety applications.