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:
Jun. 04, 2019
Filed:
Feb. 26, 2014
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Tristan Hautson, Fontaine, FR;
Rabeb Aloui, Fontaine, FR;
Saifeddine Aloui, Grenoble, FR;
Timothée Jobert, Grenoble, FR;
Abstract
A method for recognizing a magnetic object includes holding the object immobile in front of an array of N (where N is >five) tri-axial magnetometers (M) linked with no degree of freedom. There is a fixed distance between two consecutive magnetometers less than the maximum separation between the magnetic parts of the magnetic object furthest away from one another. The method includes measuring by each magnetometer a vector bof which each coordinate represents the value of the magnetic field projected onto a respective measurement axis of the magnetometer, and a union of vectors bforming a measured magnetic signature S, where the index 'i' is an identifier of the magnetometer. The method includes computing of a deviation E between the magnetic signature Sand a prerecorded magnetic signature Sof a known magnetic object. The method includes comparing E to a predetermined threshold and recognizing the magnetic object.