Reverse field stabilization of polarized polymer films

Details Reverse field stabilization of polarized polymer films Reverse field stabilization of polarized polymer films

1982-10-22

1984-07-10

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Electric charge generating or conducting means

Use of forces of electric charge or field

29 2535, 307400, H01G 702

Patent

active

044596340

ABSTRACT:
This invention concerns a method for stabilizing polarized polymeric piezoelectric films wherein a polarized polymeric piezoelectric film is exposed to an electric field of reverse polarity to that employed in the polarization step for a period sufficient to remove unstable homo- and hetero-charges but insufficient to depolarize useful charges in the final film.

REFERENCES:
patent: 3660736 (1972-05-01), Igarashi et al.
patent: 4055878 (1977-11-01), Radice
patent: 4356424 (1982-10-01), Marcus
patent: 4365283 (1982-12-01), Radice
patent: 4392178 (1983-07-01), Radice

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