| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for measuring a reciprocating current flowing through a two wire cable without processing of the cable and with high efficiency and high accuracy. <P>SOLUTION: A plurality of magnetic sensors are disposed around two conductive wires through which the reciprocating current flows, the angle of each of the plurality of the magnetic sensors is adjusted so that the magnetic field detection surface of the magnetic sensor becomes perpendicular to the direction of the magnetic field induced by the reciprocating current, and the strength of the magnetic field is detected by the plurality of the magnetic sensors to derive a current value of the reciprocating current. <P>COPYRIGHT: (C)2012,JPO&INPIT |
