Vortex flowmeter having an asymmetric center body
US4995269A · kind A · utility
2Cited by
3References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1990 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Mar 8, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/3266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow measuring apparatus having a flow tube with an asymmetrical blunt y rigidly mounted on at least one end in a stream of flowing fluid contained within the flow tube so as to form vortices downstream of said asymmetrical blunt body at low Reynolds numbers. A laminar proportional amplifier is used for amplifying the pressure variations caused by the vortices, either a microphone or a pressure transducer is used for converting the amplified pressure variations to an electrical output signal, and a signal conditioner and read out is used for converting the output signal into a rate of flow of the stream of flowing fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.