Apparatus for detecting discontinuities in a fluid stream

Details Apparatus for detecting discontinuities in a fluid stream Apparatus for detecting discontinuities in a fluid stream

1984-09-11

1987-03-24

Kreitman, Stephen A.

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 2902

Patent

active

046515550

ABSTRACT:
Apparatus for detecting discontinuities, such as bubbles, in a fluid stream in a tube in which successive bursts of ultrasonic energy are transmitted through the tube and received. Discontinuities are detected by comparing each received signal against a reference level which is set over a longer term by the received signals, the presence of a discontinuity is detected by a reduced amplitude signal which causes an indication to be produced.

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patent: 4341116 (1982-07-01), Bilstad et al.
patent: 4392374 (1983-07-01), Liebermann

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