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:
Jul. 12, 2016
Filed:
Jul. 12, 2013
Université DE Montpellier, Montpellier, FR;
Centre National DE LA Recherche Scientifique (C.n.r.s), Paris, FR;
Férial Terki, Le Triadou, FR;
Azzedine Bousseksou, Toulouse, FR;
Quang Hung Tran, Lyngby, DK;
Souleyman Kamara, Montpellier, FR;
CheolGi Kim, Daejeon, KR;
Kun Woo Kim, Daejeon, KR;
Philippe Gandit, Saint-Nizier du Moucherotte, FR;
UNIVERSITÉ DE MONTPELLIER, Montpellier, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.), Paris, FR;
Abstract
A micromagnetometry system for detecting the presence of very small quantities of magnetic particles comprises a first magnetic hybrid AMR/PHR multiring sensor using a Wheastone bridge electrical configuration, a first current source, a first voltage measurement device, a set of at least one magnetic particles deposited on the first magnetic sensor and a processing unit for detecting from a set of different measured differential voltages a magnetic flux shift representative of the presence of a least one deposited magnetic particle. The micromagnetometry system comprises means for creating a magnetic excitation field Hto make produce by each motionless magnetic particle a stray magnetic field oscillating along the time at a constant frequency ω ranging from 10 Hz to 3 KHz.