Geometric optimization of electrostatic fields for stable levitation of metallic materials

查看全文 作　　者：HU [1]Liang;WANG [1]HaiPeng;LI [1]LiuHui;WEI [1]BingBo

机构地区：[1]Department of Applied Physics,Northwestern Polytechnical University

出　　处：《Science China(Technological Sciences)》索引2013年第56卷第1期,共7页

基　　金：financially supported by the National Natural Science Foundation of China (Grant Nos. 50971103 and 51271150);the Program for New Century Excellent Talents;the NPU Foundation for Fundamental Research 摘　　要：Experimental and computational methods are used to optimize the electrostatic field for levitating metallic materials.The calculated launch voltage increases linearly with the distance between top and bottom electrodes.The combination of a larger top electrode diameter with a smaller bottom diameter may enhance the levitation ability because the electric field intensity near the levitated sample is strengthened.Top convex and bottom concave electrodes can guarantee good levitation stability but decrease the levitation force.The design of bottom electrode is crucial to attain not only a stable levitation state but also a higher levitation capability.As a measure characterizing the intrinsic levitation ability of various materials,the product of density and diameter of levitated samples can be used to determine the launch voltage for counteracting gravity according to a power relationship. 关键词：悬浮稳定性几何优化金属材料静电场电极直径电场强度悬浮状态材料表征

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Geometric optimization of electrostatic fields for stable levitation of metallic materials

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