The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 25, 2025
Filed:
Jan. 15, 2025
Qilu University of Technology (Shandong Academy of Sciences), Jinan, CN;
Li Wang, Jinan, CN;
Xingyuan Xu, Jinan, CN;
Jun Chen, Jinan, CN;
Weiguang Su, Jinan, CN;
Anqing Li, Jinan, CN;
Zhaoqiang Chen, Jinan, CN;
Chonghai Xu, Jinan, CN;
Abstract
A crack sensor, comprising a flexible film, wherein a first side of the flexible film is provided with a plurality of linear protrusions, and an opposite second side of the flexible film is configured with a linear structure; the linear structure comprises, in order from bottom to top, a silver layer, a chromium layer, and a CNT-PDMS layer, wherein the CNT-PDMS layer is composed of polydimethylsiloxane doped with carbon nanotubes; the silver layer is configured with a crack structure, the crack structure being a crack that changes in response to the deformation of the silver layer. The crack sensor effectively resists crack propagation, significantly improving the stability of the crack sensor while also exhibiting high sensitivity. Further provided is a preparation method for the crack sensor.