| 摘要 |
PROBLEM TO BE SOLVED: To collect a desired volume of gas in a collection bag 3 even if there is a pressure difference between the inside and the outside of a container 2 for collecting a gas. SOLUTION: Pressure values of the inside and the outside of the container 2 are measured by a pressure gauge 13 inside the container 2 and a pressure gauge 14 outside the container 2 to determine the difference in pressure. Thus, an exhaust pump 4 is driven, while a gas volume collected in the collection bag 3 is calculated in response to the difference. COPYRIGHT: (C)2011,JPO&INPIT
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