Coriolis mass flow/density measuring devices and method for compensating measurement errors in such devices

Abstract From the Canadian patent

An inline measuring device comprises a vibratory-type transducer electrically coupled with electronics. The vibratory-type transducer includes at least, one measuring tube for conducting a flowing mixture an exciter arrangement , for, actively driving a first natural eigenmode of the measuring tube and a sensor, arrangement for delivering an oscillation measurement signal representing oscillations of the measuring tube. The electronics produce measured values for, representing a physical, measured quantity of the mixture by estimating from an, excitation current and from said oscillation measurement signal a Coriolis coupling, coefficient corresponding with a coupling between said first …