sensor proximity capacitive
The capacitive proximity sensor is a piece of advanced technology. It was designed to discover whether there is something or nothing around it, without any physical contact being made at all. This sensing technique depends on the electrical properties of capacitive sensors, which change the electrical field when a conductive object--such as a human finger--gets close. Its major applications include such things as recognition and tracking of gestures, object detection as well as proximity sensing. For technology features, this sensor has high sensitivity, low power consumption and is suited to detect materials of a wide variety with different electrical properties. This sensor is widely used for smartphones, tablets, and user interfaces based on touch (such as kiosks). It is also employed in industrial and automotive settings for identifying materials, as well as in security applications.