Patent ID: 6512383
Filing Date: 2003-01-28
Classification: G01R

Abstract:
Method for measuring the series resistance of a conductor traversed by an alternating current comprising the steps of:measuring at least a real component of a voltage drop over a predetermined length of the conductor; deriving a measurement current from the conductor, the measurement current having a real component only and having a predetermined relationship with the alternating current; converting the measurement current into a corresponding measurement voltage having a predefined conversion ratio with the measurement current; withdrawing an adjustable portion of voltage from the measurement voltage; comparing the adjustable portion of voltage with the voltage drop; adjusting the adjustable portion of voltage in such a way as to balance the voltage drop; measuring the adjustable portion of voltage which balances the voltage drop; deriving a value for the alternating current; determining the resistance as a function of the value of the adjustable portion of voltage which balances the voltage drop and of the value of the alternating current.