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:
Apr. 27, 2010
Filed:
Sep. 10, 2007
Alan S. Edelstein, Alexandria, VA (US);
Alan S. Edelstein, Alexandria, VA (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A ferromagnetic object is located by moving magnetic sensors along a path in an area of detection; using the sensors to measure a total magnetic field in the area of detection; using the sensors to measure all three vector components of magnetic field as the sensors travel along the path and passes the object; computing theoretical vector components of the total magnetic field in the area of detection; matching the measured vector components with the computed theoretical vector components of the total magnetic field; calculating an error measurement between matched measured vector components and computed theoretical vector components of the magnetic field; determining optimized values of parameters that minimize an error between the measured vector components and computed theoretical vector components of the magnetic field; and determining a position of the object based on the measured components of the magnetic field as a function of the optimized values.