Arrangement for detecting presence of object in observation area, comprises transmitting electrode device for emitting alternating field into emission area, where receiving electrode device is provided for detecting alternating field

摘要

The arrangement comprises a transmitting electrode device for emitting an alternating field into an emission area. A receiving electrode device is provided for detecting an alternating field present in a detection area. The receiving electrode device is connected to a transimpedance amplifier circuit (TIV).