DEVICE FOR THE CONTACTLESS DETERMINATION OF AN ELECTRICAL POTENTIAL OF AN OBJECT, CURRENT PROBE, AND METHOD

摘要

The invention relates to a device (6) for the contactless determination of an electrical potential (Uunbekannt) of an object (1), comprising an electrode (2) and a potential controller (7) which is electrically connected to the electrode(2) and is designed to change a reference potential (Uref) applied to the electrode to a final value (Uunbekannt) in such a way that an electric field (E) between the object (1) and the electrode (2) disappears at the final value (Uunbekannt) if the electrode (2) is located at a distance (d) from the object, and to determine the electrical potential (Uunbekannt) from the final value (Uunbekannt).