Matching member

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1989-09-29

1992-03-03

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Sonar counter-measures

367152, H04B 102

Patent

active

050938100

ABSTRACT:
An acoustic matching member for a sonic transducer is disclosed which comprises a solid material, for example, a glass, in which a plurality of voids have been formed. A method is also included of forming an acoustic matching member for a transducer which includes the steps of forming the member from a material in which a plurality of voids have been introduced whereby the velocity of sound in the material with voids is substantially less than that of the material without voids in the direction of sound propagation of the member.

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