Method for operating a resonance-measuring system and a resonance-measuring system
First Claim
1. Method for operating a resonance-measuring system wherein the resonance-measuring system includes at least one oscillation element, at least one oscillation driver and at least one oscillation sensor, comprising the steps of:
- exciting the oscillation element to oscillation in at least one eigenform from at least one control in at least one control loop by at least one oscillation driver excited by at least one excitation signal Fi(t)detecting the excited oscillations of the oscillation element with the oscillation sensors as at least one response signal yi(t),varying at least one set variable of the closed loop in a pre-determined manner, andselectively identifying at least one parameter of the excited eigenform by evaluating at least one of at least one resulting excitation signal Fi(t) and at least one resulting response signal yi(t) with the help of a mathematical model of the resonance-measuring system.
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Abstract
A method for operating a resonance-measuring system, in particular, a Coriolis mass flowmeter, having at least one oscillation element, at least one oscillation driver and at least one oscillation sensor, the oscillation element being excited to oscillation in at least one control using at least one control loop by at least one oscillation driver being excited by at least one excitation signal and the excited oscillations of the oscillation element being detected by the oscillation sensors as at least one response signal. At least one set variable of the closed loop is varied in a pre-determined manner and by evaluating at least one resulting excitation signal and/or at least one resulting response signal with the help of a mathematical model of the resonance-measuring system, at least one parameter of the excited eigenform is selectively identified.
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Citations
16 Claims
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1. Method for operating a resonance-measuring system wherein the resonance-measuring system includes at least one oscillation element, at least one oscillation driver and at least one oscillation sensor, comprising the steps of:
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exciting the oscillation element to oscillation in at least one eigenform from at least one control in at least one control loop by at least one oscillation driver excited by at least one excitation signal Fi(t) detecting the excited oscillations of the oscillation element with the oscillation sensors as at least one response signal yi(t), varying at least one set variable of the closed loop in a pre-determined manner, and selectively identifying at least one parameter of the excited eigenform by evaluating at least one of at least one resulting excitation signal Fi(t) and at least one resulting response signal yi(t) with the help of a mathematical model of the resonance-measuring system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. Resonance-measuring system, comprising
an oscillation element at least one measuring tube with a flowing medium as an oscillation element, at least one oscillation driver, at least one oscillation sensor, wherein the oscillation element is excitable to oscillation in at least one eigenform from at least one control in at least one control loop by the at least one oscillation driver excited by at least one excitation signal Fi(t) and the oscillation sensors being adapted to detect the excited oscillations of the oscillation element as at least one response signal yi(t), and an evaluation means for selectively identifying at least one parameter of the excited eigenform by evaluating at least one of at least one resulting excitation signal Fi(t) and at least one resulting response signal yi(t) using a mathematical model of the resonance-measuring system.
Specification