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. 26, 2010
Filed:
Oct. 09, 2006
Lyle Gene Roybal, Idaho Falls, ID (US);
Dale Kent Kotter, Shelley, ID (US);
David Thomas Rohrbaugh, Idaho Falls, ID (US);
David Frazer Spencer, Idaho Falls, ID (US);
Lyle Gene Roybal, Idaho Falls, ID (US);
Dale Kent Kotter, Shelley, ID (US);
David Thomas Rohrbaugh, Idaho Falls, ID (US);
David Frazer Spencer, Idaho Falls, ID (US);
Battelle Energy Alliance, LLC, Idaho Falls, ID (US);
Abstract
Methods for detecting and locating ferromagnetic objects in a security screening system. One method includes a step of acquiring magnetic data that includes magnetic field gradients detected during a period of time. Another step includes representing the magnetic data as a function of the period of time. Another step includes converting the magnetic data to being represented as a function of frequency. Another method includes a step of sensing a magnetic field for a period of time. Another step includes detecting a gradient within the magnetic field during the period of time. Another step includes identifying a peak value of the gradient detected during the period of time. Another step includes identifying a portion of time within the period of time that represents when the peak value occurs. Another step includes configuring the portion of time over the period of time to represent a ratio.