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:
Mar. 30, 2010
Filed:
Oct. 19, 2006
Applicants:
Chung-yue Wang, Taipei, TW;
Peng-ching Peng, Jhonghe, TW;
Inventors:
Chung-Yue Wang, Taipei, TW;
Peng-Ching Peng, Jhonghe, TW;
Assignee:
National Central University, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G01N 25/72 (2006.01);
U.S. Cl.
CPC ...
Abstract
A penetrating radiation is used to examine a prestressed tendon in a prestressed concrete. A comparing object is used, whose position and size are known in advance. A magnifying rate of an image size of the comparing object projected on an imaging device is calculated. By using the magnifying rate and by comparing the image sizes of the prestressed tendon and the comparing object projected on the imaging device, the defect size of the prestressed tendon can be figured out.