Diaphragm for dynamic microphones and methods of manufacturing t

Details Diaphragm for dynamic microphones and methods of manufacturing t Diaphragm for dynamic microphones and methods of manufacturing t

1991-07-22

1993-11-02

Ng, Jin F.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

381203, 181170, H04M 2500

Patent

active

052590364

ABSTRACT:
A diaphragm for microphones having a laminate structure which imparts damping characteristics to the diaphragm is disclosed. The laminate comprises upper and lower resilient layers composed of a plastic film. The upper and lower layers constrain a center layer composed of an elastomeric material having a high dissipation of vibratory shear motion. Manufacturing techniques for making such diaphragms are disclosed.

REFERENCES:
patent: 3258543 (1986-06-01), Mosier, Jr.
patent: 3834486 (1974-09-01), Tsuge et al.
patent: 4135601 (1979-01-01), Tsukagoshi et al.
patent: 4210698 (1980-07-01), Watson
patent: 4410768 (1983-10-01), Nakamura et al.
patent: 4674592 (1987-06-01), Aoki et al.
patent: 5093164 (1992-03-01), Bauer et al.

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