Flexitensional transducer having a strain compensator

Details Flexitensional transducer having a strain compensator Flexitensional transducer having a strain compensator

1996-06-26

1998-06-16

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367162, 367167, 367176, 310337, H04R 1700

Patent

active

057682160

ABSTRACT:
In a flextensinal transducer a drive stack provided inside the oval shell has a strain compensator that has a cylinder and piston. The cylinder is provided in the oval shell, and the piston is stiffly attached to the end of the drive stack. Inside the cylinder, the piston can move along the major axis of the oval shell. When the flextensional transducer is sunk into the water, the oval shell is distorted to extend along the major axis. Then the cylinder and the piston moves relatively to each other to compensate for the distortion.

REFERENCES:
patent: 2064911 (1936-12-01), Hayes
patent: 3258738 (1966-06-01), Merchant
patent: 4420826 (1983-12-01), Marshall, Jr. et al.
patent: 4845687 (1989-07-01), Bromfield
patent: 4964106 (1990-10-01), Bromfield
patent: 5345428 (1994-09-01), Arnold et al.
patent: 5363346 (1994-11-01), Maltby
patent: 5431058 (1995-07-01), Lagier et al.
"The Dynamic Filter Device", International Workshop on Power Transducers for Sonics and Ultrasonics, Jun. 1990, pp. 82-83.

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