Fluidic oscillator

Details Fluidic oscillator Fluidic oscillator

1993-12-28

1995-03-14

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

137833, G01F 120, F15C 106

Patent

active

053968085

ABSTRACT:
A fluidic oscillator and a flowmeter comprising means (10, 14, 16) for forming a two-dimensional fluid jet and an obstacle (22) having a main cavity (26) swept by the oscillating jet, and secondary cavities (34, 36) on either side of the main cavity (26) enabling the radial extension of main vortices accompanying the oscillation of the jet to be made dependent on flow conditions. Applicable to the measurement of the velocity or flow rate of flowing fluid.

REFERENCES:
patent: 4182172 (1980-01-01), Wennberg et al.
patent: 4854176 (1989-08-01), Okabayashi
patent: 4976155 (1990-12-01), Challendes
Journal of Physics E/Scientific Instruments, "Low Reynolds number fluidic flowmetering", 21 (1988) Oct., No. 10, Bristol, Gr. Britain, pp. 977-989.

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