| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable detection of a voltage between terminals of each single cell and prevent the cost of apparatus fabrication from increasing, while securing desired insulation with respect to a high-voltage system in which a ground potential becomes relatively high by a plurality of single cells. <P>SOLUTION: A voltage detection apparatus 10 for a fuel cell 1 is configured to comprise: liquid crystal portions 33 to which output voltages of single cells 2 constituting the fuel cell apply; a light source 22 irradiating the liquid crystal portions 33 with light; a CCD array 24 for detecting an intensity of light transmitted through the liquid crystal portions 33; and a processing unit 16 for detecting the output voltages of the single cells 2 based on an output signal of the CCD array 24 according to the output voltages of the single cells 2. <P>COPYRIGHT: (C)2009,JPO&INPIT |
