Direct measurement ultrasonic velocity measuring system

Details Direct measurement ultrasonic velocity measuring system Direct measurement ultrasonic velocity measuring system

1994-11-30

1996-09-17

Voeltz, Emanuel T.

Boots, shoes, and leggings

364509, 364575, 364576, 364726, G01F 2328

Patent

active

055575366

ABSTRACT:
To determine the average velocity of a fluid stream, an ultrasonic signal is transmitted into the fluid and reflected ultrasonic signal received. The signals are mixed with a frequency of the transmitted ultrasonic signals. A Fourier transform is performed on the signals, the largest coefficient used to normalize the signal and certain of the weighted signals are averaged.

REFERENCES:
patent: 4713971 (1987-12-01), Johannes
patent: 5107841 (1992-04-01), Sturgill
patent: 5177691 (1993-01-01), Welles et al.
patent: 5218871 (1993-06-01), Cody et al.
patent: 5333508 (1994-08-01), Petroff et al.

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