| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample fluid depressurizing device capable of correctly executing a sample fluid depressurizing analysis with a smaller number of parts and further more capable of being miniaturized. SOLUTION: A pressure regulating tube 3 is provided with a fluid inlet port 6, an outlet port 7, and a pressure regulating hole 2 connecting the inlet port 6 and outlet port 7, and a pressure varying mechanism 4 which moves a pressure regulating shaft 4 into the regulating hole 2 forward / backward, on an outer surface of the pressure regulating shaft a screw slot 20 is provided, wherein a wire material 21 is inserted spirally making a clearance gap. When a sample fluid passes through the gap, it is depressurized by a pressure drop. COPYRIGHT: (C)2004,JPO
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