A capacitive sensor is a proximity sensor that distinguishes adjacent objects by their impact on the electrical field made by the sensor. simple capacitive sensors have been economically accessible for a long time, and have discovered a specialty in non-metallic object detection, yet are restricted to short ranges, normally under 1 cm.

Capacitive sensors have a few resemblances to radar in their capacity to distinguish conductive materials, while seeing through protecting materials, for example, wood or plastic.

At the point when utilized for identifying objects all around a vehicle, a portion of the detriments of the capacitive sensor are less hazardous. A down to earth framework has numerous sensors normally divided around the outside of the vehicle. This implies there is dependably a sensor close by, so no incredible range is required, and items can be generally restricted by which sensor they are identified in. Non-directional reaction is really alluring, since it can distinguish objects that are between sensors however exceptionally near the vehicle.