FLUXGATE SENSOR WITH A SPECIAL RING-CORE

Abstract: In the proposed design of a ring-core sensor, three windings, namely the exciting, the sensing and the compensating ones are applied directly on a special ring-core. The core is also wrapped with an additional winding that controls the so-called virtual air-gap. The virtual air-gap enables the sensor sensitivity to be adjusted in wide range. In the paper the design and test results of the proposed sensor are presented