Method of measuring speed of fluid by applying an excitation signal comprising a first portion having a decreasing amplitude followed by a second portion of constant amplitude
US10982990B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2018 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Dec 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method for measuring a speed of a fluid and ultrasound fluid meter suitable for implementing this method. The method comprises the step of measuring a travel time taken by a measurement ultrasound signal to travel a path of defined length, the measurement ultrasound signal being generated by a transducer subjected to an excitation electrical signal (16). The excitation electrical signal (16) includes a first signal portion (17) followed by a second signal portion (18). The first signal portion is a periodic signal having a pattern (19) and a decreasing amplitude. The second signal portion is a periodic signal having the same pattern (21) and a constant amplitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.