| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas sensor improved in response relay with respect to a gas having strong adsorbability and especially markedly improved in response delay when the amount of moisture in a measuring target gas is large. <P>SOLUTION: A three-phase interface of solid-liquid-gas is formed between with respect to the detection target compound gas moved through an acting electrode 7 by diffusion at the boundary of the acting electrode 7 and an electrolyte 12 and the detection target compound gas is made to react at the three-phase interface to allow a current to flow to the acting electrode 7. Since the weight of the acting electrode 7 on an air-permeable film 4b is set to 7 mg/cm<SP>2</SP>or below and the thickness of the acting electrode 7 is thin, the adsorbing amount of the detection target compound gas moved through the acting electrode 7 is small and a response delay time is short. <P>COPYRIGHT: (C)2008,JPO&INPIT |
