| 摘要 |
PROBLEM TO BE SOLVED: To provide a manometer using a reversed U-shaped tube used for a fluid dynamics experiment, having a wider measuring range. SOLUTION: Graduations 16a, 16b for measuring the liquid head position are provided on the first reversed U-shaped tube body 11. The second tube body 17 is provided, and level meters 20a, 20b suitable for measuring a lower pressure and also a pressure gage are provided thereon. In addition, pressure gages 25a, 25b suitable for measuring a higher pressure are provided. The pressure in a wide range can be measured continuously by overlapping parts of each measuring range. COPYRIGHT: (C)2005,JPO&NCIPI
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