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:
Jul. 24, 2012
Filed:
Sep. 15, 2009
Fred M. Mueller, Los Alamos, NM (US);
Jens Haenisch, Dresden, DE;
Fred M. Mueller, Los Alamos, NM (US);
Jens Haenisch, Dresden, DE;
Los Alamos National Security, LLC, Los Alamos, NM (US);
Abstract
The transverse critical-current uniformity in a superconducting tape was determined using a magnetic knife apparatus. A critical current Idistribution and transverse critical current density Jdistribution in YBCO coated conductors was measured nondestructively with high resolution using a magnetic knife apparatus. The method utilizes the strong depression of Jin applied magnetic fields. A narrow region of low, including zero, magnetic field in a surrounding higher field is moved transversely across a sample of coated conductor. This reveals the critical current density distribution. A Fourier series inversion process was used to determine the transverse Jdistribution in the sample.