Novel Microwave Resonant Technique for Accurate Testing of Magnetic Materials
| العنوان: | Novel Microwave Resonant Technique for Accurate Testing of Magnetic Materials |
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| المؤلفون: | Nilesh Kumar Tiwari, Abhishek Kumar Jha, M. Jaleel Akhtar |
| المصدر: | IEEE Transactions on Microwave Theory and Techniques. 67:239-248 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Physics, Radiation, Magnetometer, Demagnetizing field, 020206 networking & telecommunications, 02 engineering and technology, Condensed Matter Physics, Computational physics, law.invention, Magnetic field, Sample volume, law, Permeability (electromagnetism), 0202 electrical engineering, electronic engineering, information engineering, Image theory, Electrical and Electronic Engineering, Relative permeability, Microwave |
| الوصف: | A robust cavity technique is proposed to quite accurately measure the complex permeability of the magnetic materials, which gives promising results for arbitrary length samples. This technique takes into account many factors such as magnetic field correction inside the sample under test, the effect of demagnetization, and the image theory, which was not considered in past. In this paper, a numerical model of the magnetometric demagnetization factor is developed, which precisely considers the effects of the relative permeability of sample and the nonuniform magnetic field over sample volume. The sensitivity of proposed technique is better than conventional and recently modified technique assuming arbitrary length sample. The proposed scheme typically provides 98% accurate result for the sample length greater than $0.15\times $ the width of the rectangular cavity. The proposed method is quite novel and can be appreciated due to the fact that it gives higher accuracy for all the cases when compared with other standard cavity techniques. |
| تدمد: | 1557-9670 0018-9480 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::45a3f98a36081195f6d7ebd90146ac88 https://doi.org/10.1109/tmtt.2018.2880964 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........45a3f98a36081195f6d7ebd90146ac88 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15579670 00189480 |
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