高频圆电流磁场中导体环所受电磁悬浮力的实验测量

Experimental measurement on electromagnetic suspending power of circinal conductor in high-frequency circle-current magnetic field

利用扭秤的高灵敏度和稳定性测量了高频圆电流对导体的电磁悬浮力 .通过对与高频圆电流同轴细导体环距高频圆电流平面不同高度所受电磁悬浮力的测量 ,得到了导体环表面单位面积受纵向电磁悬浮力的分布 .与理论计算结果进行对比分析 ,结果表明 ,在导体环与圆电流平面距离较大时实验曲线与理论曲线相吻合 .从而为电磁悬浮实验提供了一种简便而准确的测量手段 .

Using the high sensitivity and stability of trorsion balance, the electromagnetic suspending power induced by high-frequency circle-current was measured by changing the distance between circinal conductor and plane of high-frequency circle-current. According to that, we obtained the distribution of electromagnetic suspending power of per unit area on circinal conductor surface lengthways. The results show that the experimental curve and theoretical curve are identical when the distance is large relatively. Consequently, an accurate and simple metrical method is offered for electromagnetic suspending experiment.