PIEZOELECTRIC SENSOR

To provide a piezoelectric sensor which has a desired sensitivity and which does not make a person feel uncomfortable when touched.SOLUTION: A piezoelectric sensor 1 includes: a plurality of piezoelectric elements 10, having a piezoelectric layer 11 and a pair of electrode layers 12a, 12b arranged o...

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Bibliographic Details
Main Authors HONJO YASUHIRO, YOSHIKAWA HITOSHI
Format Patent
LanguageEnglish
Japanese
Published 02.04.2020
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Summary:To provide a piezoelectric sensor which has a desired sensitivity and which does not make a person feel uncomfortable when touched.SOLUTION: A piezoelectric sensor 1 includes: a plurality of piezoelectric elements 10, having a piezoelectric layer 11 and a pair of electrode layers 12a, 12b arranged on both front and back surfaces of the piezoelectric layer 11, arranged apart from each other in a plane direction; and elastic layers 20, 30, composed of an elastic body having an elastic modulus of 10 MPa or less, disposed on at least one side of the front and back directions of the piezoelectric elements 10.SELECTED DRAWING: Figure 1 【課題】 所望の感度を有し、人が接しても違和感を感じにくい圧電センサを提供する。【解決手段】 圧電センサ1は、圧電層11および圧電層11の表裏両面に配置される一対の電極層12a、12bを有し、面方向に離間して配置される複数の圧電素子10と、弾性率が10MPa以下の弾性体からなり、複数の圧電素子10の表裏方向の少なくとも片側に配置される弾性体層20、30と、を備える。【選択図】 図1
Bibliography:Application Number: JP20180181316