Signal processing method, signal processing apparatus, and Coriolis flowmeter
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United States of America Patent
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May 13, 2014
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app pub date -
Dec 1, 2010
filing date -
Feb 19, 2010
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Abstract
A signal processing method, a signal processing apparatus, and a Coriolis flowmeter are capable of always performing measurement with constant precision and performing phase measurement with high filtering performance and a small amount of computation even when a temperature of a fluid to be measured changes, air bubbles are mixed into the fluid to be measured, or the fluid to be measured rapidly changes from a gas to a liquid. The Coriolis flowmeter detects at least one of a phase difference and a vibration frequency proportional to a Coriolis force acting on at least one flow tube or a pair of flow tubes.
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