Electrostatic monitoring system
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United States of America Patent
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Mar 31, 1981
Grant Date -
N/A
app pub date -
Aug 30, 1979
filing date -
Sep 6, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for monitoring a low conductivity liquid carrying an electrostatic charge and flowing along a pipeline comprises two separately insulated conductive wall sections (M.sub.1, M.sub.3) of the pipeline one downstream of the other. Means are connected to each of these sections for providing a signal representing the relaxation current released from the liquid to each of the wall sections and these signals are processed to provide indications or controls dependent upon the conductivity of the liquid, the relaxation time of the liquid, the streaming current, or the charge density carried by the liquid.
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