发明名称 |
Capacitance probe for fluid flow and volume measurements |
摘要 |
Method and apparatus for making measurements on fluids are disclosed, including the use of a capacitive probe for measuring the flow volume of a material within a flow stream. The capacitance probe has at least two elongate electrodes and, in a specific embodiment of the invention, has three parallel elongate electrodes with the center electrode being an extension of the center conductor of a co-axial cable. A conductance probe is also provided to provide more accurate flow volume data in response to conductivity of the material within the flow stream. A preferred embodiment of the present invention provides for a gas flow stream through a micro-gravity environment that allows for monitoring a flow volume of a fluid sample, such as a urine sample, that is entrained within the gas flow stream.
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申请公布号 |
US5596150(A) |
申请公布日期 |
1997.01.21 |
申请号 |
US19950400703 |
申请日期 |
1995.03.08 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
ARNDT, G. DICKEY;NGUYEN, THANH X.;CARL, JAMES R. |
分类号 |
G01F1/64;G01F1/74;(IPC1-7):G01F1/58 |
主分类号 |
G01F1/64 |
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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