| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical gas detector capable of detecting a gas to be measured having an absorption band in an ultraviolet wavelength region. SOLUTION: The optical gas detector 100 is equipped with an ultraviolet ray source 110 for radiating ultraviolet rays and an ultraviolet detection element 120 for detecting ultraviolet rays. The gas to be measured is introduced into the light path of ultraviolet rays reaching the ultraviolet detection element 120 from the ultraviolet ray source 110 and the absorption degree of the ultraviolet rays is detected by the ultraviolet detection element 120 to measure the concentration of the gas to be measured. COPYRIGHT: (C)2007,JPO&INPIT
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