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首页> 外文会议>第19届国际稀土永磁及应用研讨会（19th International Workshop on Rare Earth Permanent Magnets amp; Their Applications）（REPM'06） >New Systems of Rare Earth Permanent Magnets for Generation of Extrahigh Magnetic Fields
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New Systems of Rare Earth Permanent Magnets for Generation of Extrahigh Magnetic Fields

机译：用于产生超高磁场的稀土永磁新系统

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Various systems, which are composed of rare-earth permanent magnets and generate strong magnetic fields, are calculated. Strong fields are taken to mean the fields with the strength, which exceeds the magnet induction. Calculated values of the strength of strong fields can mount to 20-150 kOe. Depending on form of domains where this fields are localized they can be classified as linear and point fields, the corresponding systems can be named linear and point as well. It was shown that the maximal linear field can be obtained in Halbach cylinder (prism), in which this field tends to HX = 4πMs ln(a/x) with increasing of number of component sectors. The maximal point field is reached in systems composed of many conical magnets, divided by many sectors. The strength of such field tends to the value HX = 8πMs In(a/x). Experimental values of strong fields measured in some systems by various methods are in good agreement with calculated data.
机译：计算了由稀土永磁体组成并产生强磁场的各种系统。强磁场是指强度超过磁铁感应强度的磁场。强场强度的计算值可以达到20-150 kOe。根据此字段所在的域的形式，它们可以分为线性字段和点字段，相应的系统也可以称为线性字段和点字段。结果表明，在哈尔巴赫圆柱体（棱镜）中可以获得最大线性场，其中随着组件扇区数量的增加，该场趋于HX =4πMsln（a / x）。在由许多圆锥形磁体组成的系统中，可以达到最大点场，该系统由许多扇形区分开。这种场的强度趋于值HX ＝8πMSIn（a / x）。在某些系统中通过各种方法测得的强场的实验值与计算数据非常吻合。

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