发明名称 |
Induction voidmeter |
摘要 |
An induction voidmeter for detecting voids in a conductive fluid may comprise: a four arm bridge circuit having two adjustable circuit elements connected as opposite arms of said bridge circuit, an input branch, and an output branch; two induction coils, bifilarly wound together, connected as the remaining two opposing arms of said bridge circuit and positioned such that the conductive fluid passes through said coils; applying an AC excitation signal to said input branch; and detecting the output signal generated in response to said excitation signal across said output branch. The induction coils may be located outside or inside a non-magnetic pipe containing the conductive fluid.
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申请公布号 |
US4590431(A) |
申请公布日期 |
1986.05.20 |
申请号 |
US19830564129 |
申请日期 |
1983.12.21 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPARTMENT OF ENERGY |
发明人 |
ANDERSON, THOMAS T.;ROOP, CONARD J.;SCHMIDT, KENNETH J.;BREWER, JOHN |
分类号 |
G01N27/02;G01N27/74;G21C17/025;(IPC1-7):G01N27/02 |
主分类号 |
G01N27/02 |
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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