Claims
- 1. An electro-acoustic component comprising:
- a base of polarized piezo ceramic material including a length and a width; a pair of transducers on said base spaced apart in the direction of the length in respective fixed positions with polarized piezo ceramic material of said base between said transducers; and
- a completely depolarized zone in said polarized piezo ceramic material of said base between said transducers and comprising at least one depolarized column-like zone extending across said base and including a width in the direction of the length of said base, the delay time or frequency behavior of said component being set exclusively by said width.
- 2. An electro-acoustic component according to claim 1, wherein excitation of one of said transducers causes sound propagation with a sound propagation front toward the other of said transducers, and wherein:
- said completely depolarized zone includes boundary surfaces disposed at an angle with respect to the sound propagation front.
Priority Claims (1)
Number |
Date |
Country |
Kind |
88115022 |
Sep 1988 |
EPX |
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Parent Case Info
This is a continuation of application Ser. No. 07/403,360, filed Sep. 6, 1989, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0141487 |
May 1985 |
EPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
403360 |
Sep 1989 |
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