| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve current measurement accuracy while suppressing an increase in thickness in the stacking direction of a cell, in a current measurement device for measuring current flowing through the cell when an AC impedance of the cell of a fuel cell is measured. <P>SOLUTION: A current measurement device includes: a current measurement section 101 comprising layered products 100a arranged between cells 10a and formed by stacking a plurality of base boards 110-140, a pair of electrodes 111, 141 arranged on both surfaces of each of the layered products 100a and brought into contact with the cells 10a, and an exciting coil part 121 connecting each of the electrodes 111, 141 and generating a magnetic field by current flowing between each of the electrodes 111, 141; a magnetic field detection means 102 for detecting a variation in the magnetic field generated in the exciting coil part 121; and a current measurement means 51 for measuring current at a portion corresponding to the current measurement section 101 in the cells 10a based on the detected value. The exciting coil part 121 includes spiral wiring patterns 121a, 121b formed on a base board 120 comprising the layered products 100a. <P>COPYRIGHT: (C)2010,JPO&INPIT |
