Apparatus for detecting discontinuities in a fluid stream
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United States of America Patent
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Mar 24, 1987
Grant Date -
N/A
app pub date -
Sep 11, 1984
filing date -
Sep 11, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
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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