| 摘要 |
PROBLEM TO BE SOLVED: To provide a simplified sensor system for detecting and discriminating a volatile sulfide (VSC) having a low concentration under the ppm order. SOLUTION: This volatile sulfide sensor is equipped with a steam saturation vessel 3 into which a gas sample is introduced and wherein a saturated vapor pressure is maintained at a prescribed temperature, a measuring system 9 maintained at a higher temperature than the prescribed temperature, a sensor cell 6 provided in the measuring system and formed by arraying sensor elements 5 equipped respectively with an organic adsorption film, and a means for guiding the gas sample acquiring the saturated vapor pressure from the steam saturation vessel into the measuring system, to thereby impart thereto a relative humidity, and thereafter measuring a resonance frequency of the sensor elements. COPYRIGHT: (C)2005,JPO&NCIPI
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