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.
Original language | English |
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Patent number | US7571062B2 |
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IPC | G01F 1/00,G01F 1/76,G01F 1/84,G06F 15/00 |
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Priority date | 8/07/98 |
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Filing date | 31/10/06 |
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Publication status | Published - 4 Aug 2009 |
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Externally published | Yes |
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