Non-invasive local magnetic hysteresis characterization of a ferromagnetic laminated core

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:527

Article

Kouakeuo, S. H. Nguedjang^1,2,3  Ducharne, B.^2,4  Solignac, A.⁵  Morel, L.³  Raulet, M. A.³  Toutsop, B.^1,2,3  Deffo, Y. A. Tene^1,2  Tsafack, P.¹ 

[1] Univ Buea, Fac Engn & Technol, Buea, Cameroon

[2] INSA Lyon, Lab Genie Elect & Ferroelect, F-69100 Villeurbanne, France

[3] Univ Lyon, Lab Ampere, F-69621 Villeurbanne, France

[4] Tohoku Univ, Int Joint Unit, Univ Lyon, ELyTMaX UMI 3757,CNRS, Sendai, Miyagi, Japan

[5] Univ Paris Saclay, CEA Saclay, CNRS, SPEC,CEA, F-91191 Gif Sur Yvette, France

关键词: Hysteresis characterization;    Needle probe method;    Micrometric giant magnetoresistance;    Printing technology;    Non-invasive sensor;    Local measurement;   

DOI  :  10.1016/j.jmmm.2021.167783

来源: Elsevier

【 摘 要 】

An alternative sensing solution is described to measure local magnetic hysteresis cycles through a laminated magnetic core. Due to the reduced space gap separating two successive laminations, it is impossible to interpose the usual oversize magnetic sensors (wound coil, Hall-effect sensor). In this study, the space issue has been solved by printing the needle probe method for the magnetic state monitoring and by using a micrometric Giant Magneto Resistance (GMR) for the magnetic excitation measurement. An instrumented magnetic lamination including the non-invasive monitoring solution has been built and moved successively to every lamination position of the whole laminated ferromagnetic core. A precise cartography of the hysteresis losses has been reconstructed from all these local measurements and the average values compared to the classic measurement methods obtained with a wound coil. The relative agreement between the experimental results observed opened doors to large improvement in the estimation of magnetic losses and in the design of magnetic circuits.

【 授权许可】

Free