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:
Oct. 22, 1991
Filed:
Dec. 28, 1989
Applicant:
Inventors:
Joseph Bohandy, Columbia, MD (US);
Boris F Kim, Pasadena, MD (US);
Terry E Phillips, Ellicott City, MD (US);
Frank J Adrian, Olney, MD (US);
Kishin Moorjani, Silver Spring, MD (US);
Assignee:
The Johns Hopkins University, Baltimore, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01R / ;
U.S. Cl.
CPC ...
324 716 ; 324636 ; 324629 ; 505843 ;
Abstract
Weak links in superconductors are detected by observing the effect of magnetic field modulation on the microwave resistance of superconductors. The phase detected response to the magnetic modulation can show a peak at T.sub.c. The presence of peak(s) at temperatures below T.sub.c indicates the presence of weak links in the superconductor.