MAGNETICALLY VISCOUS PENDULUM Russian patent published in 2007 - IPC H02K33/02 F16F15/03 G12B3/00 G04C3/10 

FIELD: physics of magnetism; devices for converting magnetic-field energy to mechanical vibrations.

SUBSTANCE: proposed magnetically viscous pendulum has permanent magnet and ferromagnetic body attached relative to permanent magnet, for instance on sliding shaft for moving at one degree of freedom in variable-flux-density magnetic field along mentioned shaft and elastically coupled with permanent magnet, for instance by means of spring whose ends are attached to permanent magnet and ferromagnetic body, respectively; ferromagnetic body material chosen for the purpose has magnetic-viscosity relaxation time constant comparable, for instance, with one tenth of ferromagnetic body free-vibration period and preferably saturating field strength in permanent-magnet gap is chosen for ferromagnetic body. Ferromagnet possesses desired magnetic viscosity and magnetic permeability relatively reducing with increase in magnetic field strength above critical level.

EFFECT: ability of setting ferromagnet in mechanical vibratory motion.

1 cl, 6 dwg