Journal Paper: Sensorless measurement technique for characterization of magnetic material under nonperiodic conditions

Title:	Sensorless measurement technique for characterization of magnetic material under nonperiodic conditions
Authors:	B. Tellini , R. Giannetti , S. Lizón-Martínez
Keywords:	Magnetic hysteresis, measurement, modeling
Research topics	*Electronic Instrumentation
Abstract:	This paper deals with the sensorless characterization of magnetic materials under nonperiodic conditions. A volt-amperometric method based on general physical principles has been adopted to do the measurements. Starting from the concept of magnetic hysteresis as a multibranch nonlinearity with nonlocal memory, we provide a description of the proposed measurement procedure, focusing on two significant topic points: 1) the determination of a well-known (within a certain interval of confidence) initial state of magnetization and 2) the effect on the final experimental results of the offset introduced by the instrumentation. Finally, we present experimental results done on a sample of soft ferrite, showing how the method is capable of measuring phenomena like accommodation or noncongruency of minor loops.
Reference:	IEEE Transactions on Instrumentation and Measurement Volume: 57 Number: 7 Pages: 1465-1469
Publication date:	July 2008
DOI reference:	10.1109/TIM.2008.917200
Journal Impact Factor:	JCR impact factor 0.978 (2008)
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Institute for Research in Technology — Instituto de Investigación Tecnológica