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. 31, 2023
Filed:
Jun. 24, 2020
Jsti Group Co. Ltd., Jiangsu, CN;
Nanjing Tech University, Jiangsu, CN;
Duo Liu, Jiangsu, CN;
Jiandong Zhang, Jiangsu, CN;
Hui Xiong, Jiangsu, CN;
Xiaonan Feng, Jiangsu, CN;
Xianqiang Wang, Jiangsu, CN;
Jun Lu, Jiangsu, CN;
JSTI GROUP CO. LTD, Jiangsu, CN;
NANJING TECH UNIVERSITY, Jiangsu, CN;
Abstract
The present disclosure provides an automatic test system for actual stress of a bridge based on DIC technology, where the system includes a camera, a phosphor spraying device, a computer, and a sliding rail; the sliding rail is arranged on both sides of an upper wing of a box-shaped concrete beam; the phosphor spraying device is used to spray phosphor on a web of the box-shaped concrete beam to form speckles of varying light and shade; the camera is slidably connected to the sliding rail through a bracket, and is used to photograph the speckles and transmit a speckle image to the computer; and the computer is used to analyze and process the speckle image taken by the camera and generate a time history diagram of stress.