Browsing by Author "Pukinskiy, Yuri J."
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- Demagnetizing factors for two parallel ferromagnetic plates and their applications to magnetoelectric laminated sensorsLiverts, Edward; Grosz, Asaf; Zadov, Boris; Bichurin, Mirza I.; Pukinskiy, Yuri J.; Priya, Shashank; Viehland, Dwight D.; Paperno, Eugene (American Institute of Physics, 2011-04-01)An analytical expression is derived to approximate the magnetometric demagnetizing factors for two parallel ferromagnetic plates having the shape of rectangular prisms. The magnetometric demagnetizing factors relate the average magnetic fields within the plates' volumes to an external magnetic field. Knowing this relationship is essential for describing the response of magnetoelectric sensors comprising two parallel magnetostrictive plates. It is shown that two separate ferromagnetic layers provide better field sensitivity than a single layer with a doubled thickness. The obtained results are in a good agreement with numerical calculations and experimental data. (C) 2011 American Institute of Physics. [doi:10.1063/1.3536518]
- Metal-ceramic laminate composite magnetoelectric gradiometerBedekar, Vishwas; Bichurin, Mirza I.; Ivanov, Sergey N.; Pukinskiy, Yuri J.; Priya, Shashank (AIP Publishing, 2010-03-01)Gradiometer resembles in functionality a magnetic field sensor where it measures the magnetic field gradient and its sensitivity is determined by the ability to quantify differential voltage change with respect to a reference value. Magnetoelectric (ME) gradiometer designed in this study is based upon the nickel (Ni)-Pb(Zr,Ti)O(3) (PZT) composites and utilizes the ring-dot piezoelectric transformer structure working near the resonance as the basis. The samples had the ring-dot electrode pattern printed on the top surface of PZT, where ring acts as the input while dot acts as the output. There is an insulation gap between the input and output section of 1.2 mm. The generated magnetic field due to converse ME effect interacts with the external applied magnetic field producing flux gradient, which is detected through the frequency shift and output voltage change in gradiometer structure. The measurements of output voltage dependence on applied magnetic field clearly illustrate that the proposed design can provide high sensitivity and bandwidth.