Streaming current detector probe
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United States of America Patent
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Jun 9, 1992
Grant Date -
N/A
app pub date -
Aug 16, 1990
filing date -
Aug 16, 1990
priority date (Note) -
Expired
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Abstract
A streaming current detector has a reciprocating piston with a sensing region having a uniform clearance from the casing which is sufficiently large to avoid significant shearing of the particles in the fluid of the sample stream. A separate guiding region of the piston has a sufficiently tight fit in the casing for smooth reciprocation. A relief region of the piston has the largest clearance from the casing to provide a sufficiently large area to control a constant low velocity of the sample fluid.
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