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.

Date of Patent:
Jul. 20, 2010

Filed:

Jan. 18, 2008
Applicants:

Christophe Coillot, Paris, FR;

Paul Leroy, Bourg la Reine, FR;

Gérard Chanteur, Antony, FR;

Alain Roux, Palaiseau, FR;

Frédéric Nguyen Van Dau, Palaiseau, FR;

Inventors:

Christophe Coillot, Paris, FR;

Paul Leroy, Bourg la Reine, FR;

Gérard Chanteur, Antony, FR;

Alain Roux, Palaiseau, FR;

Frédéric Nguyen Van Dau, Palaiseau, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention relates to a magnetic amplification device comprising a magnetic sensor with longitudinal sensitivity, having a first piece of magnetic material and a second piece of magnetic material, each of the pieces having a longitudinal slot at its center, the pieces being separated by a distance called the gap, and the magnetic sensor being inserted into the two slots. The device of the invention typically makes it possible to measure low magnetic fields smaller than the Earth's field using a magnetic sensor of the AMR type.


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