- - Method for Controlling Electrodes for Bio-impedance Measurements and Apparatus for Bio-impedance Measurements

摘要

A control circuit for an electrode of a bio-impedance measurement system, the bio-impedance measurement system comprising a shielding current input electrode and a measurement current input electrode, the control circuit comprising: a circuit for connection to at least one shielding current input electrode A current generator; And a measurement signal output configured to establish a measurement potential between the measurement current input electrodes, and the control circuit is configured so that the measurement potential depends on the measurement of the potential difference resulting from the shield current. The control circuit uses the value of the potential resulting from the shielding current to determine the potential difference between the measuring current input electrodes. In this way, the flow of the measuring current is smaller than the shielding current and can be achieved at a safe level.