Reduced minimum configuration fiber optic current sensor

摘要: A reduced minimum configuration (RMC) fiber optic current sensor (FOCS) is proposed which includes a sensing coil or region, light source and an optical path arranged between the front output of coil/region. At least one quarter wave plate disposed coil/region for converting linearly polarized beams into circularly propagating through The though region experience differential phase shift caused by magnetic field flowing in conductor proximate to coil. detector located at back produces signal response return intensity transmitted source. measure may be produced electric wire, wherein can wound around wire. Electronics described minimizes effects changes environmental conditions.