Patent ID: 9279710
Filing Date: 2016-03-08
CPC Classification: G01F,G01N

Claim Text:
1. A control and measurement system for a Coriolis flowmeter of the type comprising a flow tube, a driver configured to oscillate the flow tube, and a pair of sensors configured to generate signals indicative of movement of the flowtube when it is being oscillated by the driver, the sensors being positioned relative to one another so the signals from the sensors are indicative of a mass flow rate of fluid through the flowtube, the control and measurement system comprising: a signal processor configured to determine the mass flow rate of the fluid using the sensor signals and output a signal indicative of the determined mass flow rate; and a digital drive signal generator configured to generate a variable digital drive signal for controlling operation of the driver, wherein the drive signal generator is configured to adjust a phase of the digital drive signal to compensate for a time delay associated with the components connected between the sensors and the driver.