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:
Feb. 24, 2009
Filed:
Oct. 19, 2006
Applicants:
Chung-yue Wang, Jhongli, TW;
Peng-ching Peng, Jhongli, TW;
Inventors:
Chung-Yue Wang, Jhongli, TW;
Peng-Ching Peng, Jhongli, TW;
Assignee:
National Central University, Jhongli, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 15/06 (2006.01); G01N 23/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A penetrating radiation is used to examine a steel bar in a reinforced concrete coordinated with a comparing object. The position and size of the comparing object are known in advance. At first, the steel bar and the comparing object are projected on an imaging device. Then, a magnifying rate of an image size of the comparing object shown on the imaging device is calculated. By using the magnifying rate and by comparing the image sizes of the steel bar and the comparing object on the imaging device, the defect size of the steel bar can be figured out.