Katano R, Shimizu S
Institute for Chemical Research and Radioisotope Research Center, Kyoto University, Kyoto, Japan.
Rev Sci Instrum. 1979 Jul;50(7):805-10. doi: 10.1063/1.1135955.
A high-speed rotation instrument to produce centrifugal fields greater than 100 million times gravity has been constructed. Small, solid, spherical high-carbon chromium steel rotors are suspended magnetically in high vacuum and spun by a rotating magnetic field. It is found that the spinning rotor explodes when the calculated average value of stress in the meridian plane reaches about 1.2 times the tensile strength of the material. The maximum speed of rotation so far achieved for more than a few days without bursting was obtained with a rotor of 1.50 mm diameter. The speed of 2.11 x 10(5) rev/s corresponded to a centrifugal field of 1.34 x 10(8) times gravity. Our instrument will find application in the study of nuclear atomic phenomena.
已制造出一种能产生大于重力1亿倍离心力场的高速旋转仪器。小型实心球形高碳铬钢转子在高真空中通过旋转磁场磁悬浮并旋转。研究发现，当子午面应力的计算平均值达到材料抗拉强度的约1.2倍时，旋转的转子会爆炸。目前，直径为1.50毫米的转子在不爆裂的情况下已实现了连续多日的最高转速。转速为2.11×10⁵转/秒时，对应的离心力场为重力的1.34×10⁸倍。我们的仪器将在核原子现象研究中得到应用。
