Sonic transducer

Details Sonic transducer Sonic transducer

1986-12-29

1988-08-16

Ruehl, Charles A.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73644, 310327, 310335, G01N 2902, H04R 1710

Patent

active

047635134

ABSTRACT:
An improved transducer for transmitting and receiving sonic energy, the transducer having a housing with a cylindrical opening, an acoustic end member closing one end of the opening, and providing an acoustic window, a crystal element having one planar surface in engagement with the acoustic end member rearward face, a thrust producing compression screw threadably received in the cylindrical opening, and a spring between the compression screw and crystal element to maintain a substantially steady force of the crystal element against the acoustic end member rearward face. In one embodiment particularly adapting the transducer for sanitary environments the end member includes an integrally formed reflector portion with provision for fluid to flow freely between the sonic window portion and the reflector portion.

REFERENCES:
patent: 3890423 (1975-06-01), Zacharias, Jr.
patent: 3935484 (1976-01-01), Leschek et al.
patent: 4240004 (1980-12-01), Coleman
patent: 4287755 (1981-09-01), Mansfield
patent: 4417480 (1983-11-01), Zacharias, Jr.

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