Method and device for measuring volume flows in liquids and gase

Details Method and device for measuring volume flows in liquids and gase Method and device for measuring volume flows in liquids and gase

1992-05-05

1994-07-05

Chilcot, Jr., Richard E.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

7386127, G01F 166

Patent

active

053257260

ABSTRACT:
A method and device for measuring a volume flow of fluids in flow channels using ultrasound, wherein two ultrasonic transducers, each with a different transmitting frequency, are disposed in a flow channel in such a manner that emitted wave trains travel toward one another, with speed vectors of both wave trains having components that are in the flow direction and against the flow direction, and the superimposed signal is evaluated in terms of its position with respect to time.

REFERENCES:
patent: 3209591 (1965-10-01), Lester et al.
patent: 3336801 (1967-08-01), Snavely
patent: 4052896 (1977-10-01), Lee et al.
patent: 4555951 (1985-12-01), Gutterman
patent: 4616510 (1986-10-01), Moore
patent: 4850220 (1989-07-01), Asano et al.
patent: 5035147 (1991-07-01), Woodward
patent: 5214966 (1993-06-01), Delsing

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