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:
Aug. 03, 1993
Filed:
Aug. 06, 1990
Pedro F Lara, Dallas, TX (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
There is provided a transient electromagnetic method and apparatus for inspecting objects using moving sensors. The apparatus includes a sensing portion, which has a transmitting antenna and at least one receiving antenna thereon. The sensing portion is located adjacent to the object which is to be inspected such that the antennas are adjacent to the object. The sensing portion is moved along the object at the same time the transmitting antenna is inducing current in the wall and the receiving antenna is producing a received signal of the induced current diffusion in the wall. Because the antennas are moving during data acquisition, the speed of inspection is increased. The data is then interpreted to determine the thickness of the object.