Patent ID: 6507791
Filing Date: 2003-01-14
Classification: G01F,G01N

Abstract:
A digital flowmeter comprising:a vibratable conduit; a driver connected to the conduit and operable to impart motion to the conduit; a sensor connected to the conduit and operable to sense the motion of the conduit; and a control and measurement system connected to the driver and the sensor, the control and measurement system comprising circuitry to: receive a sensor signal from the sensor, generate a drive signal based on the sensor signal using a synthesis process executed by a digital signal processor, the synthesis process being operable to determine parameters of the sensor signal and generate the drive signal using the determined parameters, supply the drive signal to the driver, and generate a measurement of a property of material flowing through the conduit based on the sensor signal; wherein the sensor signal is generally periodic and the control and measurement system processes the sensor signal in sets, wherein each set includes data for a complete cycle of the periodic sensor signal.