Signal travel time flow meter
US10928414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2020 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining a flow speed of a liquid in a fluid conduit is provided. During a signal-generating phase, an impulse signal is applied to a first ultrasonic transducer. A response signal is then received at a second ultrasonic transducer. A measuring signal is later derived from the response signal, wherein the derivation comprises reversing a signal portion with respect to time. During a measurement phase, a liquid moves with respect to the fluid conduit. The measuring signal is then applied to one of the two transducers and a response signal of the measuring signal is measured at the other transducer. A flow speed is derived from the response signal of the measuring signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.