H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/25
H04R 17/00 (2006.01) B06B 1/06 (2006.01) G01S 7/52 (2006.01) G10K 9/12 (2006.01) H04R 1/44 (2006.01)
Patent
CA 2032044
ABSTRACT An electro-acoustic transducer utilizing a plurality of flexural bars or staves to form an interface member between the electrorestrictive driver element and the water transmission medium. The staves are fastened to end plates to form a concave barrel- shaped structure that results in substantial mechanical amplification. The driver element consists of a stack of electrorestrictive elements with the stack's axis essentially coincident with the transducer's longitudinal axis. A tension member, threaded at both ends, passes through holes in the end plates and through an axial hole in the stack. Nuts at each end of the tension member are tightened to provide the required compressional "bias" to the stack. The transducer offers the advantages of lower cost of fabrication, increased amplification of the flexural driver interface elements and improved capability to withstand hydrostatic pressures.
Hazeltine Corporation
Johnson Douglas S. Q.c.
LandOfFree
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