| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas quantity measuring device capable of acquiring automatically a highly-reliable measurement result, while having a simple configuration. SOLUTION: The device includes a water tank 3 storing water beforehand; a measuring cylinder 4 arranged at such a height that an opening part is dipped into water in the water tank with an inverted attitude wherein the opening is faced downward on the water tank, wherein liquid in the water tank is stored inside beforehand to a furthermore upper level than the opening; and a gas pipe 6 for supplying gas into the measuring cylinder. The device is characterized by including an electronic force balance 2 on which the water tank is placed, and a support stand 5 for supporting the measuring cylinder on the water tank in the state of the inverted attitude so that a mass applied onto the electronic force balance is increased as much as a mass portion of pushed-out water when the water is pushed out from the measuring cylinder into the water tank. COPYRIGHT: (C)2008,JPO&INPIT
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