To improve the smell discriminating performance.
A sample gas dilution mechanism 4 is controlled by a dilute sample gas supply control part 8 to dilute a sample gas, and the sample gas is supplied with a plurality of concentrations to a sensor part 2 with a plurality of concentrations so that the sample gas concentration is gradually increased. In the respective sample gas concentrations, the detection signal of the sensor part 2 and the dilution ratio information on the dilute sample gas supply control part 8 are transmitted to a signal processing part 6. The signal processing part 6 analyzes the relation of sample gas concentration and sensor output in each gas sensor on the basis of the detection signal and the dilution ratio information. Consequently, the smell discriminating performance of the gas sensor is improved more than in the measurement of the sample gas with one concentration.
| JPS5931005 | [Title of the Invention] Combustible gas detection element |
| JP2012037347 | FLOOD DETECTION METHOD |
| WO/2020/250894 | COMPOSITE MEMBER |
YOSHII MITSUYOSHI
KINOSHITA TAISEI
NAKANO HIROSHI
KITA JUNICHI
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