Rectangular, oriented polymer, piezoelectric diaphragm

Details Rectangular, oriented polymer, piezoelectric diaphragm Rectangular, oriented polymer, piezoelectric diaphragm

1975-02-12

1976-08-03

Budd, Mark O.

Electrical generator or motor structure

Educational or construction units or kits

310 82, 310 85, 310 91, 310 96, 179110A, H01L 4104

Patent

active

039731502

ABSTRACT:
A piezoelectric electro-acoustic transducer employing as a diaphragm a uniaxially stretched film of a shape having the major axis and the minor axis, wherein the expansion-contraction direction of the diaphragm, in which a piezoelectric constant is at a maximum, is substantially in parallel with the minor axis thereof, whereby the piezoelectric electro-acoustic transducer can provide a high converting efficiency, especially in the low frequency range.

REFERENCES:
patent: 3792204 (1974-02-01), Murayama
patent: 3832580 (1974-08-01), Yamamuro et al.
patent: 3894198 (1975-07-01), Murayama et al.

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