DIRECTIONAL ELECTRO-ACOUSTIC TRANSDUCERS COMPRISING A SEALED SELL CONSISTING OF TWO PORTIONS
Assignee
ETAT FRANCAIS, AS REPRESENTED BY THE DELEGUE GENERAL POUR L'ARMEMENT
Filed
Apr 28, 1989
Granted
Aug 13, 1996
Location
SIX-FOURS-LES-P FR
Abstract
The invention relates to directional electro-acoustic transducers compris a sealed shell consisting of two portions. A transducer according to the invention comprises one or more electro-acoustic drivers (1) composed for example of a stack of piezoelectric plates (1a, 1b, . . . 1n) located inside a sealed shell. This shell comprises a first portion (3A) symmetrical as to a plane (PP') fitted with two flanges at its ends, these flanges being coupled mechanically and acoustically by means of a rod (7) and two bolts (8) With each driver (1). The shell includes a second portion (3b) which is complementary to the first portion and which is acoustically uncoupled from the first portion and from the drivers. An application of the invention is the construction of low-frequency transmitter of acoustic waves in the water in a given direction.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 15, 1989
Rescinded
Feb 8, 1995
Duration
5 years, 4 months
Inventor
- 1DIDIER BOUCHER
Record Details
- Patent number
- US 5546361
- Application
- 07360944
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records