Measuring and testing – Vibration – By mechanical waves
Patent
1980-09-15
1982-12-28
Stephan, Steven L.
Measuring and testing
Vibration
By mechanical waves
310334, 310335, G01N 2400, G01N 2900
Patent
active
043655157
ABSTRACT:
A pulse-echo device for obtaining information about a flowing fluid in which a transducer unit comprises an electrically-shielded transducer with a lens for three-dimensionally focusing energy waves, which unit can be inserted into a hole extending through the sidewall of a pipe so that the energy waves focused by the lens are directed across the flow through the pipe. The transducer is surrounded by two electrically-grounded shields which are insulated from each other and separately grounded to isolated the transducer from stray electrical pulses.
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Carlson David V.
Micro Pure Systems, Inc.
Stephan Steven L.
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