Digital flowmeter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 4, 2009
Grant Date -
May 31, 2007
app pub date -
Oct 31, 2006
filing date -
Nov 26, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A controller for a flowmeter includes an input module operable to receive a sensor signal from a sensor connected to a vibratable flowtube. The sensor signal is related to a fluid flow through the flowtube. The controller also includes a signal processing system operable to receive the sensor signal, determine sensor signal characteristics, and output drive signal characteristics for a drive signal applied to the flowtube. An output module is operable to output the drive signal to the flowtube and a control system is operable to modify the drive signal and thereby maintain oscillation of the flowtube during a transition of the flowtube from a substantially empty state to a substantially full state.
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