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:
Jan. 21, 2014
Filed:
May. 25, 2007
Scott D. Sudhoff, West Lafayette, IN (US);
James L. Cale, West Lafayette, IN (US);
Scott D. Sudhoff, West Lafayette, IN (US);
James L. Cale, West Lafayette, IN (US);
Purdue Research Foundation, West Lafayette, IN (US);
Abstract
Methods and apparatus for characterizing magnetic properties of materials, such as a material's anhysteretic B-H characteristic or its permeability as a function of B or H. A test apparatus for determining these magnetic properties is constructed to yield a symmetrical field distribution through material being tested to avoid localized saturation within the material. Characterization methods take into account radial variations in tangential field intensities when calculating the magnetic properties. The calculations are obtained as solutions of optimization problems through optimization methods such as genetic algorithms.