Integrated liquid crystal acoustic transducer

Details Integrated liquid crystal acoustic transducer Integrated liquid crystal acoustic transducer

1992-10-28

1994-08-02

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

367181, H04R 1900

Patent

active

053352106

ABSTRACT:
An integrated liquid crystal acoustic transducer includes a substrate chip having a through hole; a movable plate electrode; means for resiliently mounting the movable plate electrode across the hole in the substrate chip; a perforated electrode spaced from the movable plate electrode and mounted across the hole in the substrate chip; and a liquid crystal medium, disposed between the electrodes, whose polarization vector orientation changes in response to electrical and acoustic input to reciprocally convert between electric and acoustic energy.

REFERENCES:
patent: 4037062 (1977-07-01), Fergason
patent: 4233477 (1980-11-01), Rice et al.
patent: 4356422 (1982-10-01), van Maanen
patent: 4652086 (1987-03-01), Sandhu
patent: 5146435 (1992-09-01), Bernstein

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