Electroacoustic transducer

Details Electroacoustic transducer Electroacoustic transducer

1982-02-25

1985-09-10

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367156, 367912, 310 26, G01V 140, G01V 116

Patent

active

045410810

ABSTRACT:
An improved transducer for generating and receiving acoustic energy. A transducer core is constructed by bonding together a plurality of concentric cylinders to provide a ferromagnetic core. A magnetic vector is established circumferentially about the core by passing a current through an electrical winding, wound torridially about the core. A pulsed current source connected across the core provides a high-magnitude, short-duration pulse output establishing current flow from one end to the other end of all of the concentric cylinders. Current flow within the magnetic field causes a force vector and magnetic vector creating a pressure wave.

REFERENCES:
patent: 3496533 (1970-02-01), Semmelink
patent: 3614725 (1971-10-01), Moran
patent: 4219095 (1980-08-01), Trouiller
patent: 4220887 (1980-09-01), Kompanek
patent: 4228532 (1980-10-01), Sims
patent: 4296486 (1981-10-01), Vasile

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