Drive techniques for a digital flowmeter
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United States of America Patent
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Jun 18, 2013
Grant Date -
Feb 10, 2011
app pub date -
Aug 6, 2010
filing date -
Nov 26, 1997
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Abstract
Drive techniques for a digital flowmeter are described. The drive techniques account for delays caused during digital signal processing of sensor signals that correspond to a motion of a flowtube, as well as drive signals that impart motion to the flowtube. Such delays may be caused by a variety of factors, including delays associated with analog/digital conversion of the signals and/or filtering of the signals. The techniques include open-loop techniques and closed-loop techniques, which can be used separately or together during the start-up and operation of the digital flowmeter.
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