Detection of secondary current and torque of squirrel-cage induction motor using amorphous magnetic sensor

Inuzuka, Katsumi; Mohri, K.; Izumiyama, K.

doi:10.1109/20.179435

Cited by 10 publications

(1 citation statement)

References 3 publications

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“…Of specific interest are amorphous materials prepared as microw ires. In particular, the revealed unique magnetic prop erties and the magnetic bistability of amorphous microwires provided their wide application in practice for manufacturing high sensitive pickups of magnetic fields, stresses, low pressures, strains, etc., and also new types of coding and sensor devices [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Specific features of magnetic properties of “thick” microwires produced by the Ulitovsky-Taylor method

et al. 2012

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The magnetic properties of initial and heat treated Co 69 Fe 4 Cr 4 Si 12 B 11 microwires in a glass shell with the diameter D = 125 μm and the diameter of the amorphous metallic core d = 90 μm produced by the Ulitovsky-Taylor method have been studied. It has been found that the magnetic characteristics, in particu lar, the saturation field H S and the coercive force H C of the samples annealed at a temperature T < 300°C do not differ from H S and H C of the initial microwire, and those of the samples annealed at T ≥ 400°C increase by almost one order of magnitude. The obtained experimental data have been explained by the structural fea tures of the microwires. The near surface values of H S and H C at T < 300°C are found to be larger than the bulk values by a factor of 5-10. These experimental data have been explained by the existence of structural and chemical ingomogeneities in the near surface layer, which are inherent in amorphous materials. This dif ference decreases with a further increase in the annealing temperature, but H S and H C increase substantially. This fact has been explained by the beginning of the microwire crystallization.

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