Ribbon-type transducer with a multi-layer diaphragm

Details Ribbon-type transducer with a multi-layer diaphragm Ribbon-type transducer with a multi-layer diaphragm

1984-02-29

1985-10-01

Rubinson, Gene Z.

1791155VC, 179181R, 179180, H04R 706, H04R 718, H04R 900

Patent

active

045448060

ABSTRACT:
A ribbon-type electro-acoustic transducer comprising a magnet system having a pole plate (2, 3) and a center pole (1) between which at least one air gap (8) is formed with a diaphragm (7) arranged in the air gap (8). The diaphragm comprises at least two foils (10, 11) which extend substantially parallel to each other in the diaphragm plane, every two adjacent foils being joined to each other at their circumference in an air-tight manner so that a volume (12) is enclosed. A conductor (9, 18) is arranged on each of the foils. Preferably the volume enclosed between two foils contains a damping material (22).

REFERENCES:
patent: 1403849 (1922-01-01), Delany
patent: 3898598 (1975-08-01), Asahi
patent: 4273968 (1981-06-01), Suyama

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