Acoustic flow meter wherein false readings are identified dependent on upstream and downstream acoustic transit times
US6098467A · kind A · utility
9Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic fluid flow meter has a timer for determining downstream and upstream transit times values of acoustic pulses transmitted between acoustic signal transceivers, operable alternately as transmitters and receivers, respectively, with and against the direction of fluid flow. Additionally an error signal indicator is supplied with the determined transit time values and emits an error signal indicative of a false flow reading if their sum and/or difference, particularly the sum of derived values, differs from a corresponding control value by a predetermined amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.