| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a current sensor capable of accurately measuring a current in a wide range at low cost. <P>SOLUTION: A ring shaped shield plate 12 is disposed so as to surround an axis in a direction of a flow of a current of a bus bar 11. A magnetoelectric transducer which is adapted to detect a magnetic flux density of a magnetic filed generated when the current flows in the bus bar 11 and to convert the magnetic flux density to an electric signal, is disposed in the vicinity of a position where the magnetic flux density of the magnetic field generated when the current flows in the bus bar 11 becomes the minimum, between the bus bar 11 subjected to the measurement beforehand and the shield plate 12. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
