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. 21, 2006
Filed:
May. 27, 2004
Changting Wang, Schenectady, NY (US);
Yuri Alexeyevich Plotnikov, Niskayuna, NY (US);
Shridhar Champaknath Nath, Niskayuna, NY (US);
William Stewart Mcknight, Hamilton, OH (US);
Gigi Olive Gambrell, West Chester, OH (US);
Changting Wang, Schenectady, NY (US);
Yuri Alexeyevich Plotnikov, Niskayuna, NY (US);
Shridhar Champaknath Nath, Niskayuna, NY (US);
William Stewart McKnight, Hamilton, OH (US);
Gigi Olive Gambrell, West Chester, OH (US);
General Electric Company, Niskayuna, NY (US);
Abstract
An omnidirectional eddy current (EC) probe includes at least one EC channel having a first and a second sense coil that are offset in a first (x) and a second (y) direction and overlap in at least one of the directions (x,y). At least one drive coil is configured to generate a probing field for the EC channel in a vicinity of the sense coils. An omnidirectional EC inspection system includes an omnidirectional EC array probe (ECAP) that includes a number of EC channels and drive coils. Each EC channel includes first and second sense coils with opposite polarities. The drive coils have alternating polarities. Electrical connections perform differential sensing for respective EC channels. Corrective drive coils are disposed at respective ends of the EC channels and generate probing fields. An eddy current instrument is connected to the omnidirectional ECAP and receives differential sensing signals from the EC channels.