Cross-flow ultrasonic transducer head

Details Cross-flow ultrasonic transducer head Cross-flow ultrasonic transducer head

1984-02-13

1985-07-02

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

045260389

ABSTRACT:
Apparatus to prevent the deposition of dirt and fine air bubbles on the flat end of a piezo-electrical crystal transducer that emits and receives ultrasonic waves consists of a body having an internal passage that angularly directs water in sweeping relation to the flat end of the crystal to keep it cleansed of air bubbles, dirt or scum. A portion of the so-directed water is diverted angularly to and away from the crystal end to thereby produce a pressure at the transducer end of sufficient magnitude to suppress the generation of air bubbles. Part of the entering water enters a vertical water column that couples the transducer to the object being measured while the cleansing portion of the stream is re-directed back into the apparatus to join that in the vertical column to create a water jet of essentially uniform velocity distribution.

REFERENCES:
patent: 2992553 (1961-07-01), Joy
patent: 3218846 (1965-11-01), Joy
patent: 3420097 (1969-01-01), Battermann et al.
patent: 3485088 (1969-12-01), O'Connor
patent: 3745833 (1973-07-01), Armstrong
patent: 3777554 (1973-12-01), Papay et al.
patent: 4033178 (1977-07-01), Holt et al.

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