Patent ID: 9091580
Filing Date: 2015-07-28
Classification: G01F,G01N

Abstract:
1. A Coriolis flowmeter comprising: a pair of conduits configured to convey a fluid through the flowmeter, each conduit defining a fluid passage having at least one curve; a driver configured to oscillate the conduits in substantially opposite phase to one another; a first sensor configured to generate a first signal indicative of relative movement of the pair of conduits when they are oscillated by the driver, the first sensor being positioned at a first location; a second sensor configured to generate a second signal indicative of relative movement of the pair of conduits when they are oscillated by the driver, the second sensor being positioned at a second location, the first and second sensors being positioned so a phase difference between the first and second signals is related to a mass flow rate of the fluid through the flowmeter; a digital signal processor configured to detect the phase difference and determine the mass flow rate of the fluid using the detected phase difference and output a signal indicative of the determined mass flow rate; and a digital drive signal generator configured to: