کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1798280 1524816 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-sensitivity dc field magnetometer using nonlinear resonance magnetoelectric effect
ترجمه فارسی عنوان
مگنتومتر میدان مغناطیسی با حساسیت بالا با استفاده از اثر مغناطیس الکتریکی رزونانس غیر خطی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
The design and operation principle of dc field magnetometer using nonlinear resonance magnetoelectric effect in a ferromagnetic-piezoelectric structure are described. It is shown that under action of ac pumping magnetic field the structure generates the output voltage containing higher harmonics whose amplitudes depend on the dc magnetic field. Best performance of the device is obtained if the signal of the third harmonics is used for the dc field measurement. The sensitivity can be considerably (by approximately three orders of magnitude) increased if advantage is taken of the acoustic resonance of the structure at this frequency. There exists the optimal pumping field ensuring the highest sensitivity. Further increasing of this field expands the range of measurable dc fields at the expense of deteriorated sensitivity. The magnetometer fabricated on the basis of a planar langatate-Metglas structure had sensitivity up to ~1 V/Oe and allowed detection of the fields as low as ~10−5 Oe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 405, 1 May 2016, Pages 244-248
نویسندگان
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