公开(公告)号：US20230200247A1

公开(公告)日：2023-06-22

申请号：US18084660

申请日：2022-12-20

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Jianlin LUO ,  Xiaoyang ZHOU ,  Huarong NIE ,  Yibo GAO ,  Zhiqing LI ,  Min ZHU

IPC: H10N30/30 ,  G01N3/08

CPC classification number: H10N30/302 ,  G01N3/08 ,  G01N2203/0066

Abstract: A method for preparing a static/dynamic three-dimensional (3D) microcrack propagation sensor, a sensor and equipment, belongs to the field of sensor technology. The preparation method includes: preparing a piezoresistive/piezoelectric sensing functional component dispersed material, and then coating the dispersed material to the surface of a fiber cloth substrate to obtain a piezoresistive/piezoelectric sensing fiber cloth; performing a pre-stretching treatment on the piezoresistive/piezoelectric sensing fiber cloth to obtain a piezoresistive/piezoelectric sensing 3D microcrack fiber cloth; ablating the piezoresistive/piezoelectric sensing 3D microcrack fiber cloth by microwave to remove the fiber cloth substrate, then obtaining a piezoresistive/piezoelectric sensing 3D microcrack functional skeleton; coating a conductive layer on both surfaces of the piezoresistive/piezoelectric sensing 3D microcrack functional skeleton, thereby forming an electrode; polarizing the piezoresistive/piezoelectric sensing 3D microcrack functional skeleton with the formed electrodes on the surfaces; and, encapsulating the piezoresistive/piezoelectric sensing 3D microcrack functional skeleton to obtain a static/dynamic 3D microcrack propagation sensor.