Multi-layer composite transducer array

Details Multi-layer composite transducer array Multi-layer composite transducer array

2006-01-10

2006-01-10

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

C367S155000, C310S334000, C310S358000

Reexamination Certificate

active

06985407

ABSTRACT:
A multi-layer composite transducer array includes at least one pair of composite transducers with an electrical and mechanical isolation layer disposed therebetween. Each composite transducer is defined by a composite panel having a common electrode coupled to a first surface and electrode segments electrically isolated from one another and coupled to a second surface. Each pair of composite transducers is configured such that the electrode segments associated with the pair's composite transducers oppose and are aligned with one another. The isolation layer has dielectric material segments that are sized, shaped and aligned in correspondence with opposing and aligned ones of the electrode segments associated with the pair's transducers. Spaces formed in the isolation layer between the dielectric material segments are filled with a viscoelastic material.

REFERENCES:
patent: 3590287 (1971-06-01), Berlincourt et al.
patent: 4683396 (1987-07-01), Takeuchi et al.
patent: 4805157 (1989-02-01), Ricketts
patent: 5329496 (1994-07-01), Smith
patent: 5530683 (1996-06-01), Lindberg
patent: 5625149 (1997-04-01), Gururaja et al.

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