Turbulent spot flowmeter
US6230570A · kind A · utility
4Cited by
19References
22Claims
0Family size
Inventors
Key dates
| Filing date | Aug 26, 1998 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Aug 26, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/704
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flowmeter and flow measurement method employing the determination of convection speed of turbulent spots. A plurality of sensors is employed, preferably thin-film gauges operating in constant temperature, constant current, or constant voltage mode. Airspeed (or fluid speed) is determined from the convection speed, preferably via dividing the streamwise sensor spacing by the product of the time lag to the peak of a crosscorrelation function and a calibration constant. Turbulence may be artificially induced, such as by intermittent jets, electrical sparks, or protuberances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.