| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the precision in measurement of localized current in a power-measuring device for measuring localized current of power equipment. <P>SOLUTION: In this current-measuring device for measuring the current of the power equipment 10, provided with a cell 100 releasing electrical energy, a sheet-like conductor 21 carrying the current from the cell 100 is arranged in contact with the cell 100, a columnar part 23 surrounded by a groove 22 is formed on the conductor 21, and a magnetic sensor 25 measuring the strength of a magnetic field generated around the columnar part 23 is arranged in the groove 22. The magnetic sensor 25 is arranged on the side at a distance from the center of the conductor 21 in the groove 22. A magnetic shielding means is arranged, at least on the side close to the center of the conductor 21 in the outer circumference of the groove 22. Furthermore, the magnetic shielding means is arranged on a side at a distance from the center of the conductor 21 in the outer circumference of the groove 22. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
