IEEE Transactions on Instrumentation and Measurement
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IEEE Transactions on Instrumentation and Measurement

Volume58 Number 2 Pages 423428 February 2009 Measurement of asymmetric minor loops in soft ferrites up to medium frequencies S LiznMartnez B Tellini R Giannetti G Robles Abstract An accurate measurement of the hysteresis cycle of magnetic cores is a

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IEEE Transactions on Instrumentation and Measurement




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IEEE Transactions on Instrumentation and Measurement. Volume:58 Number: 2 Pages: 423-428. February 2009 Measurement of asymmetric minor loops in soft ferrites up to medium frequencies S. Lizón-Martínez, B. Tellini, R. Giannetti, G. Robles Abstract— An accurate measurement of the hysteresis cycle of magnetic cores is a crucial step in its characterization due to the importance that its nonlinear and past-dependent effects can have on the correct operation in most electric and electronic circuits. The measurements of asymmetric minor loops, in conditions where Foucault currents

can be neglected, can be useful to train models. Performing such measurements only at very low frequencies is not a solution, given the need to identify dynamic parameters of the aforementioned models. In a previous paper, the authors proposed a method for measuring major loops of hysteresis cycles up to medium frequencies, given the limitation of the classic method when increasing frequency. The method, which has been improved in this paper, is tested by measuring nonsymmetric loops of the hysteresis cycle at medium frequencies. Simulated and experimental results are provided. Index Terms—

Ferrites, hysteresis, magnetic materials, measurement, nonlinearities Due to copyright restriction we cannot distribute this content on the web. However, clicking on the next link, authors will be able to distribute to you the full version of the paper: Request full paper to the authors If you institution has a electronic subscription to IEEE Transactions on Instrumentation and Measurement, you can download the paper from the journal website: Access to the Journal website Citation: Lizón-Martínez, S.; Tellini, B.; Giannetti, R.; Robles, G.; "Measurement of asymmetric minor loops in soft

ferrites up to medium frequencies", IEEE Transactions on Instrumentation and Measurement, vol.58, no.2, pp.423-428. February, 2009.