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. 17, 2009
Filed:
Mar. 16, 2007
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 ...
G01B 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Gamma rays, X-rays or ionizing irradiations from two radiation sources penetrate through a steel bar in a reinforced concrete structure. Images of the steel bar are thus projected on two films. Through geometric relationships between the images and the steel bar itself, thicknesses between the steel bar and surfaces of the reinforced concrete structure are obtained. The position of the steel bar obtained according to the present invention is reliable and accurate. And the data obtained can be used for structure safety.