Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Patent
1983-02-07
1985-03-19
Ruehl, Charles A.
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
310327, 310336, 367162, G01F 166, H04R 1700
Patent
active
045051607
ABSTRACT:
A high-temperature transducer for transmitting and/or receiving sonic energy having a housing with a cylindrical opening, a metallic acoustic window element closing one end of the opening, a cylindrical transducer crystal having one planar surface in engagement with the acoustic window rearward face, a cylindrical dampening member in contact with the crystal rearward face, a first and a second thrust disc received in the cylindrical opening with a thrust transmitting sphere between the discs, and a thrust producing compression screw threadably received in the cylindrical opening supplying pressure against the first of the thrust discs which pressure is applied by means of the sphere to the second thrust disc, to the dampening means and to the crystal rearward face to force the crystal into intimate engagement with the acoustic window for effective sound transmission.
REFERENCES:
patent: Re29785 (1978-09-01), Leschek
patent: 3233465 (1966-02-01), Tolliver
patent: 3241373 (1966-03-01), Ricketts
patent: 3935484 (1976-01-01), Leschek
patent: 3973152 (1976-08-01), Karplus
patent: 4417480 (1983-11-01), Zacharias, Jr.
Nusonics, Inc.
Ruehl Charles A.
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