Electroacoustic transducer with a piezoelectric diaphragm

Details Electroacoustic transducer with a piezoelectric diaphragm Electroacoustic transducer with a piezoelectric diaphragm

1984-03-05

1986-08-19

Rubinson, Gene Z.

H04R 1700

Patent

active

046071458

ABSTRACT:
A telephone transducer having a body and a spacer for securing a piezoelectric diaphragm and a printed circuit, wherein the body and the spacer are made with electrically conducting material to carry out the connections between the diaphragm and the printed circuit. The diaphragm can be made of polyvinylidene fluoride or polyvinylidene fluoride copolymer.

REFERENCES:
patent: 3792204 (1974-02-01), Murayama et al.
patent: 4117275 (1978-09-01), Miyanaga et al.
patent: 4268725 (1981-05-01), Nakagawa et al.
patent: 4281222 (1981-07-01), Nakagawa et al.
patent: 4376232 (1983-05-01), Martin
patent: 4379212 (1983-04-01), Martin
Electronics, "Twinfilm Diaphragms Cancel Mike Noise", Mar. 2, 1978, vol. 51, No. 5, pp. 3E-4E.
Ultrasonics, vol. 14, No. 1, Jan. 1976, pp. 15-23, Guildford; N. Murayama et al: "The Strong Piezoelectricity in Polyvinylidene Fluoride (PVDF)".

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