CARBON MONOXIDE GAS SENSOR ELEMENT AND CARBON MONOXIDE GAS DETECTOR

摘要

PPROBLEM TO BE SOLVED: To provide a carbon monoxide gas detector for highly accurately detecting carbon monoxide gas included in a reformed gas, etc. PSOLUTION: This carbon monoxide gas sensor element has a proton-conductive solid electrolyte, and first and second electrode pairs provided on both surfaces of the solid electrolyte. The first electrode pair comprises a detection electrode and a first counter electrode while the second electrode pair comprises a second counter electrode and a reference electrode coated to a porous body. This carbon monoxide gas detector comprises the sensor element, a means for impressing a voltage across the detection electrode and first counter electrode, a means for passing a bias current through, or impressing a bias voltage across, the reference electrode and second counter electrode, and a means for measuring a potential difference between the detection electrode and reference electrode. PCOPYRIGHT: (C)2004,JPO