发明名称 |
Apparatus for measuring the local void fraction in a flowing liquid containing a gas |
摘要 |
The local void fraction in liquid containing a gas is measured by placing an impedance-variation probe in the liquid, applying a controlled voltage or current to the probe, and measuring the probe current or voltage. A circuit for applying the one electrical parameter and measuring the other includes a feedback amplifier that minimizes the effect of probe capacitance and a digitizer to provide a clean signal. Time integration of the signal provides a measure of the void fraction, and an oscilloscope display also shows bubble size and distribution.
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申请公布号 |
US4282481(A) |
申请公布日期 |
1981.08.04 |
申请号 |
US19790058339 |
申请日期 |
1979.07.17 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE UNITED STATES DEPARTMENT OF ENERGY |
发明人 |
DUNN, PATRICK F. |
分类号 |
G01N27/06;G01N27/07;(IPC1-7):G01R27/02 |
主分类号 |
G01N27/06 |
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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