APPARATUS FOR CHECKING FOR A PRESENCE OF AN ELECTRICALLY CONDUCTIVE BODY, AND CHARGING SYSTEM

摘要

An apparatus for checking for a presence of an electrically conductive body has at least one transmitting device and at least one receiving device. The transmitting device provides a transmission signal in the form of a magnetic field. The receiving device generates a reception signal from the transmission signal that is induced into the receiving device. The transmitting and receiving devices are configured in such a way that, when the electrically conductive body is absent, partial reception signals form in the receiving device on account of the induced transmission signal and the partial reception signals substantially cancel one another out in the reception signal.

主权项

1. An apparatus for checking for a presence of an electrically conductive body, the apparatus comprising:
at least one transmitting device for generating a transmission signal in the form of a magnetic field; at least one receiving device for generating a reception signal from the transmission signal induced into said receiving device; said transmitting device and said receiving device being configured such that, when the electrically conductive body is present, a first reception signal is formed in said reception device on account of the induced transmission signal and, when the electrically conductive body is absent, a second reception signal is formed that is different from the first reception signal.