| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling system for a micro-gravity rotating device, preventing heat generated therein to remain. SOLUTION: Upper and lower fixing members 31, 32 are mounted in a casing 10. A magnetic bearing 11, a thrust magnetic bearing 33 and a vibration sensor 3 and a motor 34, a vibration sensor 4 and a magnetic bearing 12 are mounted on the upper fixing member 31 and on the lower fixing member 32, respectively. Experiment boxes 20-23 are supported and rotated via arms 24-27 by a rotating shaft 30. The upper and lower fixing members 31, 32 are provided with cooling water inflow passages 35a, 36a and outflow passages 35b, 36b which carry cooling water to the magnetic bearings 11, 12, 33 and to cooling grooves 37a, 37b, 37c, 38a, 38b on the outer periphery of a coil for a motor 34 for cooling operation to prevent remaining heat inside.
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