Bimorph transducer made from polymer material
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United States of America Patent
Stats
-
Aug 23, 1983
Grant Date -
N/A
app pub date -
Dec 9, 1980
filing date -
Dec 28, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to bimorph electromechanical transducers made from polymer material. It specifically relates to a transducer comprising a plurality of superimposed dielectric sheets for forming a bimorph structure, whose deformations are controlled in linear manner by a voltage. None of the sheets is piezoelectric. The linearity of operation is obtained because at least one of the dielectric sheets carries a permanent electric charge. The invention is applicable to the construction of microphones, telephone receivers, loudspeakers, as well as to the construction of optical components, whose precise, small displacements it is desired to control.
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