In order to provide a composite piezoelectric element with which it is possible for deformation generated in a specific direction to be measured accurately with high sensitivity, and a tire condition measuring device provided with said composite piezoelectric element, a composite piezoelectric element 10 is provided with a first electrode layer 12, a piezoelectric layer 13 disposed on the first electrode layer 12, and a second electrode layer 14 disposed on the piezoelectric layer 13, wherein, in a plan view, the composite piezoelectric element 10 is provided with measuring portions 15 in which the first electrode layer 12, the piezoelectric layer 13, and the second electrode layer 14 are provided, and buffer portions 16 in which the piezoelectric layer 13 is not provided.
为了提供能够高灵敏度且高精度地对在特定方向上发生的变形进行测定的复合压电元件以及具备复合压电元件的轮胎状态测定装置,复合压电元件(10)具备:第一电极层(12);压电体层(13),配置于第一电极层(12);以及第二电极层(14),配置于压电体层(13),复合压电元件(10)在俯视观察时具备:测定部(15),设置有第一电极层(12)、压电体层(13)及第二电极层(14);以及缓冲部(16),未设置有压电体层(13)。
COMPOSITE PIEZOELECTRIC ELEMENT, TIRE CONDITION MEASURING DEVICE, TIRE SENSOR MODULE, TIRE SENSOR DEVICE, AND PIEZOELECTRIC SENSOR
复合压电元件、轮胎状态测定装置、轮胎传感器模块、轮胎传感器装置以及压电传感器
2021-07-23
Patent
Electronic Resource
Chinese
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