Method for testing a mass flow rate meter
AssigneeKrohne AG
InventorsRoger Baker, Tao Wang, Yousif Hussain, Jim Woodhouse
Life of this patent
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Abstract
A method of testing a mass flow rate meter functioning on the Coriolis principle, in which an apparatus of the mass flow rate meter is subjected to a predetermined oscillation excitation and the associated oscillation response is recorded. Then the recorded oscillation response is compared with a previously recorded oscillation response. Testing of the Coriolis mass flow rate meter with regard, for example, to error tolerances in the manufacturing or with regard to a calibration condition is thereby enabled.
Claims9
Method of testing a mass flow rate meter functioning on the Coriolis principle, comprising the steps of:
- subjecting an apparatus of the mass flow rate meter to a predetermined oscillation excitation and recording the associated oscillation response, and
- comparing the recorded oscillation response with at least one previously recorded oscillation response;
- wherein at least one damping factor is recorded as the oscillation response, and
- wherein the damping factor is recorded in a frequency-selective manner.
Method of testing a mass flow rate meter functioning on the Coriolis principle, comprising the steps of:
- subjecting an apparatus of the mass flow rate meter to a predetermined oscillation excitation and recording the associated oscillation response, and
- comparing the recorded oscillation response with at least one previously recorded oscillation response;
- wherein a frequency spectrum generated is recorded as the oscillation response.
Method of testing a mass flow rate meter functioning on the Coriolis principle, comprising the steps of:
- subjecting an apparatus of the mass flow rate meter to a predetermined oscillation excitation and recording the associated oscillation response, and
- comparing the recorded oscillation response with at least one previously recorded oscillation response;
- wherein a transient excitation is provided as the predetermined oscillation excitation, and
- wherein said transient excitation is provided by a stroke or a blow.
Method of testing a mass flow rate meter functioning on the Coriolis principle, comprising the steps of:
- subjecting an apparatus of the mass flow rate meter to a predetermined oscillation excitation and recording the associated oscillation response, and
- comparing the recorded oscillation response with at least one previously recorded oscillation response;
- wherein a continuous excitation with a predetermined frequency spectrum is provided as the predetermined oscillation excitation.
Dependencies are inferred from the claim text.