| 摘要 |
PROBLEM TO BE SOLVED: To prevent a rotor from being worn by rubbing against its bottom surface by rotating the rotor while floated near the center of a mixer chamber. SOLUTION: This mixer has a cylindrical mixer chamber 1 and a rotor 2 inside the chamber 1, which rotates responding to magnetic force applied from outside the chamber 1. In this case, the mixer is provided with two or more sets of coils 6 arranged in a plane (a rotating plane 14) perpendicular to a central axis 11 of the cylinder of the mixer chamber 1 in the mixing chamber 1 and opposite to each other with the mixing chamber 1 put therebetween, and an exciting circuit for causing electric currents of different phases to flow one by one in each coil 6 to generate a rotary magnetic field.
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