Title:
Micromagnetic measurement detection system and method for detecting the magnetic signature of a magnetic material
Document Type and Number:
Japanese Patent JP6335894
Kind Code:
B2
Abstract:
A micromagnetometry system for detecting the presence of very small quantities of magnetic particles comprises a first magnetic hybrid AMR/PHR multi-ring sensor (4) using a Wheastone bridge electrical configuration, a first current source (6), a first voltage measurement device (8), a set of at least one magnetic particles (12) deposited on the first magnetic sensor (4) and a processing unit (22) 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 (12). The micromagnetometry system comprises means (20) for creating a magnetic excitation field H AC to make produce by each motionless magnetic particle (12) a stray magnetic field oscillating along the time at a constant frequency É ranging from 10 Hz to 3 KHz.
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Inventors:
Ferrial Turki
Azedine Buseksou
Kuang Hung Trang
Suleiman Kamala
Jolgi Kim
Kung U Kim
Philip Gandit
Azedine Buseksou
Kuang Hung Trang
Suleiman Kamala
Jolgi Kim
Kung U Kim
Philip Gandit
Application Number:
JP2015521011A
Publication Date:
May 30, 2018
Filing Date:
July 12, 2013
Export Citation:
Assignee:
DEINOVE
Center National de la Cherche Sientifique (Se en Els)
Center National de la Cherche Sientifique (Se en Els)
International Classes:
G01R33/09; G01N27/72; G01R33/02; G01R33/07; G01R33/12
Domestic Patent References:
| JP2007500347A | ||||
| JP2009531706A |
Foreign References:
| US20110175605 |
Other References:
Sunjong OH et al.,“Analytes kinetics in lateral flow membrane analyzed by cTnI monitoring using magnetic method”,Sensors and Actuators B: Chemical,2011年12月15日,Volume 160, Issue 1,pp.747-752,DOI:10.1016/j.snb.2011.08.058
Sunjong OH et al.,“Hybrid AMR/PHR ring sensor”,Solid State Communications,2011年 9月,Volume 151, Issue 18,pp.1248-1251,DOI:10.1016/j.ssc.2011.05.049
Sunjong OH et al.,“Hybrid AMR/PHR ring sensor”,Solid State Communications,2011年 9月,Volume 151, Issue 18,pp.1248-1251,DOI:10.1016/j.ssc.2011.05.049
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe