Mode suppression in fluid meter conduits
US5792965A · kind A · utility
3Cited by
4References
20Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Oct 27, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Oct 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a fluid flow arrangement where the effects of high order acoustic modes are suppressed in ultrasonic flow measurement. In one embodiment, ultrasonic transducers are arranged in a duct configured to carry a fluid. Ultrasonic signals between the transducers travel in a plurality of high order modes having velocities slower than a fundamental mode whose time of flight is desired to determine with accuracy. A measurement portion between the transducers is adapted to suppress the propagation of the non-fundamental modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.