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1. WO2010094883 - DEVICE AND METHOD FOR DETECTING MECHANICAL STRESS, METHOD FOR MAKING SUCH DEVICE AND CALIBRATION

Publication Number WO/2010/094883
Publication Date 26.08.2010
International Application No. PCT/FR2010/050260
International Filing Date 16.02.2010
IPC
G01L 1/12 2006.01
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
12by measuring variations in the magnetic properties of materials resulting from the application of stress
CPC
B82Y 15/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
15Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
B82Y 25/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
25Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
G01L 1/125
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
12by measuring variations in the magnetic properties of materials resulting from the application of stress
125by using magnetostrictive means
Applicants
  • ECOLE POLYTECHNIQUE [FR]/[FR] (AllExceptUS)
  • COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]/[FR] (AllExceptUS)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS - [FR]/[FR] (AllExceptUS)
  • WEGROWE, Jean-Eric [FR]/[FR] (UsOnly)
  • CLOCHARD, Marie-Claude [FR]/[FR] (UsOnly)
  • WADE, Travis Lee [US]/[FR] (UsOnly)
  • LAIREZ, Didier [FR]/[FR] (UsOnly)
Inventors
  • WEGROWE, Jean-Eric
  • CLOCHARD, Marie-Claude
  • WADE, Travis Lee
  • LAIREZ, Didier
Agents
  • COUSIN, Geoffroy
Priority Data
09 5104218.02.2009FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) DEVICE AND METHOD FOR DETECTING MECHANICAL STRESS, METHOD FOR MAKING SUCH DEVICE AND CALIBRATION
(FR) DISPOSITIF ET PROCEDE DE DETECTION DE CONTRAINTE MECANIQUE, PROCEDE DE FABRICATION D'UN TEL DISPOSITIF, ET CALIBRATION
Abstract
(EN)
The invention relates to a device for detecting mechanical stresses, that includes: a matrix (11); bundles (20) of magneto-resistive wires with a size less than 1 micrometer; a measuring assembly (13) for detecting a magnetic state of each bundle; a calculator for calculating a mechanical stress applied to each bundle from the magnetic state detected for said bundle and from a predetermined relation.
(FR)
Le dispositif de détection de contraintes mécaniques comprend: une matrice (11); des faisceaux (20) de fils magnétostrictifs, de dimension inférieure 1 micromètre; un ensemble de mesure (13), pour détecter un état magnétique de chaque faisceau; un calculateur pour calculer une contrainte mécanique applique chaque faisceau, partir de l'état magnétique détecté pour ce faisceau, et d'une relation prédéterminée.
Also published as
Latest bibliographic data on file with the International Bureau