| 摘要 |
A carbon monoxide sensor having a fast response performance without a leak of object gas to atmosphere is presented. The sensor includes a proton conductive electrolyte film, two electrodes having catalysts and being disposed at both sides of the proton conductive electrolyte film, a positive electrode current collector plate, where a gas passage 67 having a gas inlet and outlet is formed, being disposed to making the gas passage contact on one of the electrodes, a negative electrode current collector plate having plural holes being disposed so as to contact on the other of the electrodes, a direct-current power source connected having positive and negative terminals connected to the positive and negative electrode current collector plates, respectively, and a current detecting unit for detecting a current varying depending on a concentration of carbon monoxide in the object gas containing hydrogen flowing in the gas passage. <IMAGE> |
