نتایج جستجو برای: demagnetization
تعداد نتایج: 951 فیلتر نتایج به سال:
The current morphology of the Martian lithospheric magnetic field results from magnetization and demagnetization processes, both of which shaped the planet. The largest Martian impact craters, Hellas, Argyre, Isidis and Utopia, are not associated with intense magnetic fields at spacecraft altitude. This is usually interpreted as locally nonor de-magnetized areas, as large impactors may have res...
To study the effect of microstracturcs,long-time grinding and nonmagnetic phase on magnl;tic properties of barium fe rrite, isotropic samples of ba rium ferrile magnets, BaU.6Fc203. were prepared by ce ra mics and co - precipitation methods. Magnetic measurments indi ca tes a higher demagnetization of the samples prepared by <.:hemical method due to lack of rcmcnant stress and crystallogr...
This paper presents a novel method for demagnetization fault detection in permanent magnet synchronous machine (PMSM). Demagnetization is common problem existing PMSM which deteriorates the performance and can lead to serious subsequential damages. Unlike most popular based on analysis of currents detecting this type fault, approach proposed analyzes voltage signal non-invasive search coil by m...
When immersed in liquid 3He, the nanometer strands of aerogel are coated with a thin layer of solid 3He, forming a network of irregular nanotubes. Owing to its high purity and weak interactions, this system is ideal for studying fundamental processes. We report the first experiments on solid 3He in aerogel at ultralow temperatures, cooled by direct adiabatic demagnetization. Simultaneous nuclea...
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