Coriolis force type flow meter using optical interferometer
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
Nov 27, 2002
filing date -
Nov 27, 2002
priority date (Note) -
Expired
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Abstract
A Coriolis force type flow meter uses an optical interferometer as the measuring device. When a tube that a fluid flows through experiences a bending vibration caused by an external stimulating source, the tube also has a twist vibration due to the action of the Coriolis force. The optical interferometer is then employed to measure the tiny angular change in the amplitude of the tube vibration. From such a measurement, one can determine the flux of the fluid in the tube.
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