| 抗磁性物质磁悬浮可行性分析及实现 |
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| 引用本文： | 刘畅,张锐,王胤灏,严瑞,郑圣,王锦辉.抗磁性物质磁悬浮可行性分析及实现[J].大学物理,2009,28(12). |
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| 作者姓名： | 刘畅 张锐 王胤灏 严瑞 郑圣 王锦辉 |
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| 作者单位： | 上海交通大学,物理系,上海,200240 |
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| 基金项目： | 上海市大学生创新计划资助项目(IAP1040) |
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| 摘 要： | 从理论和实验上说明石墨、铜等抗磁性的"非磁"物质在磁场中也受到磁场的作用力.实验中尝试了各种不同类型的永磁体序列,并利用4块一组的永磁铁序列产生梯度场,使磁铁表面上方产生可供抗磁性物质悬浮的稳定区域,成功实现了石墨的悬浮.此外,还利用顺磁性溶液及电磁铁实现了氧化铝和硅的悬浮.
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| 关 键 词： | 抗磁质 磁悬浮 永磁体阵列 稳定悬浮 |
Analysis and implementation on the magnetic levitation of diamagnetic substances |
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| LIU Chang,ZHANG Rui,WANG Yin-hao,YAN Rui,ZHENG Sheng,WANG Jin-hui.Analysis and implementation on the magnetic levitation of diamagnetic substances[J].College Physics,2009,28(12). |
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| Authors: | LIU Chang ZHANG Rui WANG Yin-hao YAN Rui ZHENG Sheng WANG Jin-hui |
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| Institution: | Department of Physics;Shanghai Jiaotong University;Shanghai 200240;China |
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| Abstract: | We have tried to prove and show that magnetic flelds do have put repellent force on "nonmagnetic"materials such as graphite and copper.In our experiment,we have tried several permanent arrays,and finally found a four-block permanent magnet array to produce a gradient field,and get the stable regions for levitation above the permanent magnets.We successfully make graphite to be levitated.We also use the paramagnetic solution and electromagnet to realize more obvious levitation for Al2O3 and Si. |
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| Keywords: | diamagnetic substances magnetic levitation permanent magnet array stable levitation |
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