Capacity detecting system for automobile, has shielding conductor recovering electrode of capacity transducer to opposite of detection zone and electronic control device imposing electrical potential to electrode and shielding

摘要

The system has a capacity transducer (20) with a conducting electrode (21) to generate an electrical field in a detection zone. Shielding conductors (22) are electrically isolated to the electrode and recover the electrode to the opposite of the detection zone. An electronic control device is linked to the electrode and shielding to impose an electrical potential to the electrode and shielding, during a period of measure.