| 摘要 |
PROBLEM TO BE SOLVED: To improve remarkably sensitivity in measuring a gas permeability of a film material by avoiding a barrier of detection limit due to fluctuation or drift of background associated with measuring a real time. SOLUTION: In the gas permeability measuring device to measure a gas permeability of a film material, a first vessel and a second vessel separated by the film material are formed when attaching the film material, the first vessel includes a measured gas supply mechanism supplying a measured gas to one side of the film material, the second vessel includes an inactive gas supply mechanism supplying an inactive gas to the side of the film material opposite to the side where the measured gas is supplied, a detector detecting the measured gas in the inactive gas is connected to the second vessel, and a state in which the inactive gas supplied from the inactive gas supply mechanism is sealed into the second vessel and a state in which the inactive gas sealed into the second vessel is introduced into the detector is selectively changed. COPYRIGHT: (C)2010,JPO&INPIT |
