| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrogen gas leakage detection device which can detect leakage of hydrogen gas even if a small, low cost hydrogen gas sensor which is easily affected by a gas other than hydrogen gas is used and in which bulkiness of the device and cost increase are suppressed. <P>SOLUTION: The hydrogen gas leakage detection device is provided with a case 14 for housing a fuel cell 12, a first sensor 130 which outputs a value (V1) showing hydrogen gas concentration outside of the case 14, and a second sensor 132 which outputs a value (V2) showing the concentration of hydrogen gas inside the case 14, and based on deviation of the outputs V1, V2 of respective sensors 130, 12, the leakage of the hydrogen gas is detected. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
