5:00 PM - 5:30 PM
[19p-E201-7] Magnetization of a Single Particle Realized by a Short Drop Shaft
Keywords:microgravity, magnetic susceptibility, magnetic anisotropy
Most solid particles studied in industrial or basic researches are composed of diamagnetic or weak paramagnetic materials, and specific dynamical motions are not expected in these materials unless an ultra-high field is introduced. We proposed a new method to dynamically separate a mixture of heterogeneous particles into groups of different materials by a low field below 0.5T; magnetic susceptibility of the particles was obtained from particle velocity; material was identified as well from its magnetization obtained from velocity.The detection of magnetic susceptibility is based on a new finding that acceleration a of particle induced by a magnetic volume force is independent to its mass; a is uniquely determined by susceptibility of the material.