DRIFT COMPENSATION TECHNIQUE FOR A MAGNETO-OPTIC CURRENT SENSOR

摘要

12ABSTRACT OF THE INVENTIONDrift compensation for the output signal of amagneto-optic current measuring system is achieved throughthe use of two light emitting sources, each at differentfrequencies, to generate two alternating optical inputsignals to the current sensor to establish a signal refer-ence in order to compensate for signal drift caused byvariable attenuator characteristics of the optical elementsin the system.