| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrogen concentration detector capable of precisely detecting the concentration of hydrogen in a gas to be measured up to a high-concentration region. <P>SOLUTION: A proton conductive solid-state electrolyte type hydrogen concentration detecting means is constituted of supports 11a and 11b, a first proton conductive solid electrolyte 21, first-fourth electrodes 22a-22d, a first hydrogen pumping circuit 40 and a hydrogen sensing circuit 50. A dilution means of the gas to be measured is constituted of supports 11a and 11c, a proton conductive solid electrolyte 31, fifth and sixth electrodes 32a and 32b and a second hydrogen pumping circuit 60. The gas 1 to be measured diffused and introduced from a gas-to-be-measured introducing hole 12 is diluted by the diluting gas formed by the gas-to-be-measured introducing hole 12 in an intermediate empty chamber 13. Then, the concentration of hydrogen in the gas to be measured is calculated from the hydrogen concentration detected value of the diluted gas to be measured and a dilution degree. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
