Acoustic emission flow measurement system

Details Acoustic emission flow measurement system Acoustic emission flow measurement system

1974-08-26

1976-05-25

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

G01F 120

Patent

active

039584585

ABSTRACT:
Pseudo sound created by the interaction of fluid flowing over a discontinuity in a conduit is sensed by a transducer. The transducer signal is reduced to a frequency-amplitude distribution and the amplitude at the characteristic frequency is used to calculate fluid flow rate using a dipole model. The apparatus is non-intrusive and passive. Several transducers may be serviced by a single central, processor remote from the transducer site.
Alternative apparatus provides for the determination of change in fluid flow direction and fluid density.

REFERENCES:
patent: 2936619 (1960-05-01), Gibney
patent: 3021708 (1962-02-01), November et al.
patent: 3580092 (1971-05-01), Scarpa
patent: 3641994 (1972-02-01), Gosling et al.
patent: 3821726 (1974-06-01), Chang et al.
patent: 3834227 (1974-09-01), Patterson et al.

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