On-line ultrasonic gas entrainment monitor

Details On-line ultrasonic gas entrainment monitor On-line ultrasonic gas entrainment monitor

1976-03-17

1978-04-11

Queisser, Richard C.

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 2902

Patent

active

040832252

ABSTRACT:
Apparatus employing ultrasonic energy for detecting and measuring the quantity of gas bubbles present in liquids being transported through pipes. An ultrasonic transducer is positioned along the longitudinal axis of a fluid duct, oriented to transmit acoustic energy radially of the duct around the circumference of the enclosure walls. The back-reflected energy is received centrally of the duct and interpreted as a measure of gas entrainment.
One specific embodiment employs a conical reflector to direct the transmitted acoustic energy radially of the duct and redirect the reflected energy back to the transducer for reception. A modified embodiment employs a cylindrical ultrasonic transducer for this purpose.

REFERENCES:
patent: 2573390 (1951-10-01), Blanchard
patent: 3028752 (1962-04-01), Bacon
patent: 3240674 (1966-03-01), Ledwidge
patent: 3283562 (1966-11-01), Hesig et al.
patent: 3290934 (1966-12-01), Brown et al.
patent: 3486370 (1969-12-01), Chedeville et al.
patent: 3596504 (1971-08-01), Frey
patent: 3731523 (1973-05-01), Vissers et al.
Woodward et al.; Ultrasonics, "Some Aspects of Boiling Noise Detection in Sodium Reactors by Mech. Waveguides," 1/1971, pp. 21-25.

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