Method and measuring device for determining a fluid quantity
US10852170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02836
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method determines a fluid quantity relating to a fluid flowing in a measuring device. The measuring device has a measuring tube which receives the fluid, and first and second oscillation transducers. An excitation of a total wave, which is conducted through a wall of the measuring tube, by the first and/or second oscillation transducer, by wave components which are conducted in the wall being excited by the oscillation transducers in a plurality of excitation regions. These wave components are superposed to form the total wave. A distance between the centers of the excitation regions and the excitation frequency are selected such that an oscillation mode to be attenuated is quenched by destructive interference of the wave components in a propagation direction. Excitation of a compression oscillation of the fluid by the total wave occurs. Measurement data relating to the compression oscillation is used to determine the fluid quantity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.