Acoustic method for measuring flow velocity of fluid

Details Acoustic method for measuring flow velocity of fluid Acoustic method for measuring flow velocity of fluid

2007-07-25

2008-10-21

Thompson, Jewel (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

Reexamination Certificate

active

07437947

ABSTRACT:
An acoustic method for measuring flow velocity of fluid is provided. First, a sound wave is emitted from a transduction surface of a transducer to a fluid. The transduction surface has at least two signal transduction sections. When the sound wave is scattered into a scattered signal by the fluid, the scattered signal is received by the transduction sections. According to the scattered signal, the maximum Doppler frequencies are calculated. Then, according to these maximum Doppler frequencies, the flow velocity of fluid is calculated.

REFERENCES:
patent: 5928153 (1999-07-01), Chiang et al.
patent: 6142944 (2000-11-01), Li et al.

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