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Skills and expertises for innovative research projects in electrical power.

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The CMF team: Low Magnetic fields

Reseach Axes

For several decades, the CMF team has been studying the low magnetic and electric fields, DC to low-frequency in order to reduce, control, and finely analyze the magnetic anomalies. We have studied various devices such as military ships, electric equipments (turbo-alternator, hydrogen fuel cells, electric transformers, electric vehicles), devices embarked in satellites, submarines, planes helicopters...
In order to characterize the sources, we develop numeric models and solve original inverse problems. One of our major assets is the ability to validate our theoretical and numerical studies with specific measurement facilities, in-situ, and our expertise in precise electromagnetic measurement. Often, our two complementary approaches, modeling and measurements, allow us to propose innovative technical solutions for improving, and predict the performance.

The Low Magnetic Fields Metrology Laboratory

The LMMCF is mainly dedicated to very precise measurement, which is necessary to validate the research works carried out by the CMF team of the G2Elab, especially for the magnetic discretion of ships.


Interior view of LMMCF main measurement building

Our collaborations

Our team cooperates with many organisms, universities and companies in France and abroad. We also propose advice and expertise services under public or private partnerships.
 
Universities public agencies :
Délégation Générale pour l'Armement (DGA), Groupe d'Études Sous Marine de l'Atlantique (GESMA), CEA/LETI, CEA-LITEN, LEPMI, GIPSA-lab, IN2P3, Institut Néel

Industry :
DCNS, CEDRAT, GeoEnergy, Schneider Electric, Arcelor/Mittal, MécaMagnetic, CNES, Alcan, Alstom, PSA, Areva, EDF

International :
NSWC (USA), Maristat, Fincantieri (Italie), WTD71 (Allemagne), MoD/DSTL (Royaume-Uni), CTMSP (Brésil)

A few descriptive illustrations



Diagnosis of a turbo-alternator based on external magnetic field measurements
(Ph.D. Thesis, Viet Phuong BUI)



Diagnosis of a hydrogen fuel-cell based on external magnetic field measurements
Project ANR Omniscient - LEPMI collaboration, CEA Liten, PSA
(Ph.D. Thesis, Mathieu Le NY)



Closed Loop Degaussing demonstrator tested on a submarine hull model.
DCNS collaboration
(Ph.D. Thesis Yannick VUILLERMET)

 

Written by Olivier Chadebec

Date of update November 22, 2018

Group Leaders

Olivier Chadebec
+33 (0) 4 76 82  62 91
Laure-Line Rouve
+33 (0)4 76 82 63 66

Our publications

Keywords

Ships closed loop degaussing, magnetic discretion of electrical machines, identification and localization of magnetic sources, shielding, low magnetic field metrology

More details...

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G2ELAB
Laboratoire de Génie Electrique de Grenoble
Bâtiment GreEn-ER, 21 avenue des martyrs, CS 90624
38031 Grenoble CEDEX 1
FRANCE

LMMCF site - Herbeys
MINATEC site - CIME Nanotech - Grenoble
Univ. Grenoble Alpes