GAS DETECTION BODY HOLDER

摘要

PROBLEM TO BE SOLVED: To accurately detect gas concentration by providing a state where it is more homogeneously in contact with the air to be detected, while the disturbance of the detection by ultraviolet radiation is suppressed. SOLUTION: A box-type cover 104 comprising a flat cover section 141, a side surface cover section 142, and the top-surface cover section 143 is fixed to the surface side of a mount 102, and a thin metal plate 113 colored in black is disposed on the mount 102, in a region in which opening 146 of the down side of the box-type cover 104 is arranged. It is sufficient that the thin metal plate 113 be constituted of a steel material with a coating of magnetite (Fe3O4) formed thereon, for example. COPYRIGHT: (C)2008,JPO&INPIT