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:
Oct. 26, 2021
Filed:
Sep. 01, 2017
Applicant:
Jiangsu University, Jiangsu, CN;
Inventors:
Zhenying Xu, Jiangsu, CN;
Hong Hong, Jiangsu, CN;
Xiaolong Zhang, Jiangsu, CN;
Han Du, Jiangsu, CN;
Dongyan Wan, Jiangsu, CN;
Yun Wang, Jiangsu, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 29/24 (2006.01); G01N 29/34 (2006.01); G01N 29/44 (2006.01); G01N 29/04 (2006.01);
U.S. Cl.
CPC ...
G01N 29/04 (2013.01); G01N 29/245 (2013.01); G01N 29/34 (2013.01); G01N 29/4463 (2013.01); G01N 2291/0289 (2013.01); G01N 2291/106 (2013.01); G01N 2291/267 (2013.01);
Abstract
Provided is a sensor and method for weld defect detection. The sensor includes several piezoelectric elements which form a matrix arranged on a flexible substrate. Each piezoelectric element is covered with a damping block and surrounded by sound absorbing material, within a flexible protective film. The sensor is simple, highly adaptable and high detection efficiency, which is especially suitable for the quick in-service inspection of long distance welds in large equipment, it has high degree of automation.