PROBLEM TO BE SOLVED: To provide a piezoelectric sensor structure with which it is possible to detect a biological signal (pulse wave, respiration signal, etc.) with high sensitivity and high-speed response, and which can be folded into a compact size when it is stored or transported.SOLUTION: A piezoelectric sensor structure of the present invention comprises: a plurality of vibration receiving plates disposed with a prescribed space therebetween a piezoelectric sensor structure body including a piezoelectric sheet, and a piezoelectric sensor which has a signal electrode laminated as an integral part on one face of the piezoelectric sheet and a ground electrode laminated as an integral part on the other face of the piezoelectric sheet, and disposed by being bridged over the plurality of vibration receiving plates and a shield layer disposed on both faces of the piezoelectric sensor structure body. The piezoelectric sensor structure is characterized by being constructed so as to be bent and foldable between the vibration receiving plates.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】 本発明は、高感度及び高速応答にて生体信号(脈波、呼吸信号など)を検知することができると共に、収納又は輸送時には折り畳んでコンパクトにすることができる圧電センサ構造体を提供する。【解決手段】 本発明の圧電センサ構造体は、所定間隔を存して配設された複数個の振動受信板と、圧電シート、上記圧電シートの一面に積層一体化されたシグナル電極及び上記圧電シートの他面に積層一体化されたグランド電極を有し且つ上記複数個の振動受信板上に掛け渡された状態で配設された圧電センサとを有する圧電センサ構造体本体、及び上記圧電センサ構造体本体の両面に配設されたシールド層を有し、上記振動受信板間において屈曲させて折り畳み可能に構成されていることを特徴とする。【選択図】 図1
