T.A. Ovari

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The giant magneto-impedance (GMI) effect was extensively studied 111 the latest period and it was found to be very appropriate for sensing applications [ 1 J The strongest GMI effect was obtamed in CO= & e amorphous wires with diameters reduced down to 30 pm by cold drawing in several steps, which were subsequently tension annealed in order to obtain a(More)
A novel method has been used for accurately measuring low voltage signals (~10<sup>-4</sup> V) associated with inductance changes of bilayer thin-film sensors under bending stress. In this paper the architecture of the system is first presented, and then the design ideas and key technologies are followed. Initially, the frequency modulated signals were(More)
The aim ofthis paper is to investigate the effect of Mn, Sn, and Cr additions, respectively, on the magnetic propeaties and behavior of the amorphous glass-covered wires from the Fe-Si-B system. We prepared Fe&iiI& Fe&sBI6Sn2, and Fe7,Si5B16Cr2 amorphous glass-covered wires by the g l melt spinning method. We performed magnetic measurements by a fluxmetric(More)
In this paper we report for the first time results on a new effect the large gyromagnetic effect (LGE) that we observed in Fe77.SSi7.5BLS ferromagnetic amorphous wires. This effect consists in the appearance of a rotational movement of an FeSiB sample having a finite length around its longitudinal axis with frequencies of 1 to 60 Hz when the sample is(More)
Nanocrystalline wires and glass-coated microwires prepared from amorphous precursors at diameters of the metallic core from several &#x00B5;m up to 125 &#x00B5;m, exhibit a unique structure, which consists of nanosized crystalline grains with dimensions between 10 and 50 nm, embedded in a residual amorphous matrix [1].
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