Ultrasonic bubble detector

Details Ultrasonic bubble detector Ultrasonic bubble detector

1980-12-03

1983-12-06

Kreitman, Stephen A.

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 2902

Patent

active

044185650

ABSTRACT:
Ultrasonic bubble detection apparatus utilizes a typically one-piece, rigid housing having a channel defined therein for receiving flow tubing in which bubbles are to be detected. First and second ultrasonic sending and receiving transducers are positioned on opposite sides of the channel, with an aperture communicating between each of the transducers and the channel, the aperture being filled with an elastomeric material capable of transmitting ultrasound energy between the channel and each transducer means. An air-containing slot may be positioned at the bottom of the channel to hinder the propagation of ultrasound energy through the housing from the first to the second transducer by a route other than one passing through the elastomeric material. Also, a novel shape for the apertures, and the elastomeric material filling them, is disclosed.

REFERENCES:
patent: 3663842 (1972-05-01), Miller
patent: 3921622 (1975-11-01), Cole
patent: 3974681 (1976-08-01), Namery
patent: 4015464 (1977-04-01), Miller et al.
patent: 4068521 (1978-01-01), Cosentino et al.
patent: 4137940 (1979-02-01), Faisandier

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