Fluid level detection device and methods
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United States of America Patent
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Issued Date -
Apr 21, 2005
app pub date -
Sep 3, 2004
filing date -
Sep 9, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fluid level measurement device includes a cable arranged to penetrate fluid to be measured at least to a measurement depth. The cable has first and second conductors. The fluid imposes a dielectric constant on the cable. The device also includes a signal generating arrangement configured to introduce an input signal into the cable and a signal receiving arrangement configured to receive a reflected signal from the cable. The device also includes analysis circuitry configured to analyze the reflected signal in the time domain to thereby determine a depth of at least one fluid interface.
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