Flow meter
US3996796A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/3266
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow metering apparatus comprising an elongated vortex generating element disposed transversely in a stream of fluid to produce on opposite sides thereof vortices which are shed in alternating fashion and a sensor disposed downstream of the generating element and aligned therewith in such a manner that the vortices alternately pass along opposite sides of the sensor. The sensor comprises an elongated, cylindrically shaped support having two high TCR resistive films longitudinally disposed on the surface thereof which faces the vortex generating element. This combination of vortex shedder and sensor produces a strong, highly reliable electrical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.