Patent · US Expired

Flow meter

US3996796A · kind A · utility

13Cited by
8References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 10, 1975
Grant dateDec 14, 1976
Priority date
Expiry dateMar 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.