US 12,426,509 B2
Method for preparing static/dynamic 3D microcrack propagation sensor, sensor and equipment
Jianlin Luo, Qingdao (CN); Xiaoyang Zhou, Qingdao (CN); Huarong Nie, Qingdao (CN); Yibo Gao, Qingdao (CN); Zhiqing Li, Qingdao (CN); and Min Zhu, Qingdao (CN)
Assigned to QINGDAO UNIVERSITY OF TECHNOLOGY, Qingdao (CN)
Filed by QINGDAO UNIVERSITY OF TECHNOLOGY, Shandong (CN)
Filed on Dec. 20, 2022, as Appl. No. 18/084,660.
Claims priority of application No. 202111573281.6 (CN), filed on Dec. 21, 2021.
Prior Publication US 2023/0200247 A1, Jun. 22, 2023
Int. Cl. H10N 30/30 (2023.01); G01N 3/08 (2006.01)
CPC H10N 30/302 (2023.02) [G01N 3/08 (2013.01); G01N 2203/0066 (2013.01); Y10T 29/42 (2015.01)] 10 Claims
OG exemplary drawing
 
1. A method for preparing a static/dynamic 3D microcrack propagation sensor, comprising:
preparing a piezoresistive/piezoelectric sensing functional component dispersed material, and then coating the piezoresistive/piezoelectric sensing functional component dispersed material to a 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, producing 3D microcrack, then obtaining 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, forming a 3D convoluted skeleton, 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 with an elastomer to obtain a static/dynamic 3D microcrack propagation sensor.