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Drive techniques for a digital flowmeter

  • US 9,014,997 B2
  • Filed: 05/22/2013
  • Issued: 04/21/2015
  • Est. Priority Date: 11/26/1997
  • Status: Expired due to Fees
First Claim
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1. A control system for a Coriolis flowmeter of the type comprising a flow tube, a driver adapted to vibrate the flow tube, and a pair of sensors adapted to generate signals indicative of movement of the flowtube when it is being vibrated by the driver, the control system comprising:

  • a drive signal generator adapted to generate a variable drive signal for controlling operation of the driver, the drive signal generator being adapted to excite motion of the flowtube in a first mode of operation using a drive signal comprising a sequence of synthesized periodic signals having a plurality of different frequencies.

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