Process and transducers submerged in a fluid for emitting low fr

Details Process and transducers submerged in a fluid for emitting low fr Process and transducers submerged in a fluid for emitting low fr

1996-02-14

1997-06-03

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

B06B 100, H04R 128

Patent

active

056361831

ABSTRACT:
The object of the present invention is a process wherein transducers submed in a fluid for emitting low frequency acoustic waves with lightened horns are used to reduce the frequency of emission for a given maximum power consumption of the transducer. The transducer transmits waves in a frequency range according to the given maximum power consumption and a given electro-acoustic efficiency. The transducer comprises at least one horn solid with the extremity of a motor pillar and a rigid box. The rigid box encloses the motor pillar and has determined dimensions and external volume, and further includes a dynamic load solid with the rigid box. The dynamic load partially closes an inside section of the rigid box and divides an internal cavity into a front cavity and rear cavity. The front and rear cavities communicate.

REFERENCES:
patent: 5130953 (1992-07-01), Grosso
patent: 5363345 (1994-11-01), Boucher et al.

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