CAPACITIVE MEASURING SYSTEM AND A MEASURING METHOD FOR SUCH A CAPACITIVE MEASURING SYSTEM

摘要

The invention relates to a system for measuring the capacitive coupling of at least two electrodes (400, 410, 420) to an electrically conductive body (10). The inventive system comprises at least two electrodes which are each subjected to the action of an alternating voltage source (100, 101, 110) having an alternating voltage. Said alternating voltage sources are configured in such a way that the voltage on the electrodes of a pair is 180 degrees out of phase and is regulated such that the currents in both electrodes of the pair have the same amplitude. The alternating voltage sources are regulated as a function of current passing though the electrodes, preferably in a continuous or time-discrete manner.