Electroacoustic transducer comprising a superconducting element

Details Electroacoustic transducer comprising a superconducting element Electroacoustic transducer comprising a superconducting element

1987-11-19

1990-03-27

Laroche, Eugene R.

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505701, 505705, 381203, 381204, 381205, 381188, 381192, 181167, H04R 700, H04R 1300, H04R 2302

Patent

active

049120867

ABSTRACT:
An electroacoustic transducer comprises a terminal (1-1'), a voice coil (2) coupled to the terminal, and a diaphragm (4). The transducer further comprises an element (other than the voice coil) made of a superconducting material which cooperates with the voice coil (2) to provide electromechanical conversion of an electric signal appearing at the terminal (1-1') into vibrations of the diaphragm, or vice versa.

REFERENCES:
patent: 3497642 (1970-02-01), Pintell
patent: 4228327 (1980-10-01), Sawafuji
patent: 4264789 (1981-04-01), Kaizu et al.
patent: 4273968 (1981-06-01), Suyama
patent: 4413161 (1983-11-01), Matsumoto et al.
"Keramische Supergeleiders"; De Ingenieur, No. 7/8; Jul./Aug. 1987; pp. 49-51.

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