Piezoelectric element and device using same
AssigneesTeijin Limited, Kansai University
InventorsYoshiro Tajitsu, Yuhei Ono, Tomoyoshi Yamamoto, Shunsuke Kanematsu, Satoko Yoshizaki, Suguru Ozawa
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Abstract
The purpose of the present invention is to provide a fibrous piezoelectric element which enables a large electric signal to be drawn out by stress produced by relatively small deformation. A piezoelectric element includes a braid composed of a conductive fiber and a piezoelectric fiber. In the braid, the conductive fiber is a core, and the piezoelectric fiber is a covering fiber that covers the periphery of the conductive fiber.
Claims13
A piezoelectric element including a braid comprising a conductive fiber, an insulating fiber and piezoelectric fibers, the braid having the conductive fiber as the core, and the insulating fiber and the piezoelectric fibers being covering fibers that cover the periphery of the conductive fiber, wherein the flexural rigidity of the conductive fiber is no greater than 0.05×10−4 N·m2/m, wherein the piezoelectric fibers comprise polylactic acid.
Dependencies are inferred from the claim text.