| 摘要 |
<p>A method and device for measuring the current in a conductor (38) are presented. They utilize the Faraday effect on counter-propagating circularly polarized beams of flight in a fiber optic coil (37). The light beams are transformed to and from circular polarization by a polarization transformer (40) comprised of a birefringent fiber with a twist through an appropriate angle at an appropriate distance from one end.</p> |
