METHOD OF RESEARCH OF DYNAMIC unbalance magnetocaloric effect

摘要

1. A method for the study of dynamic unbalance magnetocaloric effect at first order phase transition in a ferromagnetic material under the influence of a saturating magnetic field, characterized in that the ferromagnetic ring rotating with the rotation axis, placed in the partially spatially localized saturating magnetic field, the magnetic susceptibility of the ferromagnetic material, included in a magnetic gap with a saturating magnetic field, is selected substantially greater magnitude than the magnetic susceptibility of the ferromagnetic material in a state of its magnetic saturation angular ferromagnetic ring rotation velocity matched to the constant magnetic viscosity ferromagnet, the geometry of the ferromagnetic ring and the length of the magnetic gap with a saturating magnetic field, measuring the temperature of a rotating ferromagnetic rings and compare it with the temperature of the environment, fills resulting in a ferromagnetic ring heat losses spent on mechanical work of the rotating ferromagnetic ring mode ferromagnitovyazkogo his work as a motor, which speed is set synchronous AC motor and measure the frequency of the alternating toka.2. The method study of dynamic unbalance magnetocaloric effect according to claim 1, characterized in that to increase the magnetic susceptibility of a ferromagnet moving just before entering the magnetic gap with a saturating magnetic field is pre-ferromagnet magnetization in an external magnetic field of a certain value, which is adjusted by means of its magnetic PLAY