发明名称 |
High sensitive micromanometer |
摘要 |
An instrument wherein the downwards or upwards displacement of menisci under the action of a pressure differential in a U-tube arrangement is magnified by a factor of 104 or more. This measurement precision is accomplished by determining the volume of manometer fluid displaced via the observation of motion of an air bubble inside a horizontal capillary tube connecting the large and equal diameter vertical legs of a manometer.
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申请公布号 |
US4404855(A) |
申请公布日期 |
1983.09.20 |
申请号 |
US19810311509 |
申请日期 |
1981.10.15 |
申请人 |
PURDUE RESEARCH FOUNDATION |
发明人 |
LEIDENFROST, WOLFGANG |
分类号 |
G01L7/18;(IPC1-7):G01L7/18 |
主分类号 |
G01L7/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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