王益民，张伯礼，靳世久，李连种，王津生.不同形状永磁磁源空间磁感强度分析[J].中华物理医学与康复杂志,2003,(9):.-
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| 不同形状永磁磁源空间磁感强度分析 |
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| DOI： |
| 中文关键词: 磁场疗法 永磁磁源 磁场 磁感强度 |
| 英文关键词: Magnetic therapy Magnets Magnetic fields Magnetic induction |
| 基金项目:国家中医药管理局青年基金资助课题（No.95C002） |
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| 中文摘要: |
| 目的研究圆片、方片和球形磁源的空间磁场分布，为磁源使用和定标提供依据。 方法直接给出轴线和过极面中点与轴线垂直线上的磁感强度数值，采用有限元数值计算方法计算磁源空间磁感强度。 结果在轴线上，三种磁源磁感强度随离极面中心距离增加均单调下降；在过极面中点与轴线垂直线上，圆片和方片磁源磁感强度随离极面中点距离的增加在外形尺寸内单调上升、在外形尺寸外单调下降，球形磁源磁感强度则随距极面中点距离增加而单调下降。 结论磁源空间磁场分析对磁疗研究与应用中磁源使用的标准化有重要意义。 |
| 英文摘要: |
| Objective To study the space magnetic induction of the circular and square as well as sphere magnets, providing basis for use and measurement of magnets. MethodsThe magnetic induction on the axis and on the line which is vertical to the axis and passes the polar centers are shown by the finite element method calculating the space magnetic induction of the magnets. ResultsThe magnetic induction of the three shapes of magnets fall down with distance going up away from the polar center on the axis. Magnetic induction of circular magnets and square magnets go up in the shape and falls down out of the shape, as for a sphere magnets only fall down, with distance going up away from the polar center on the lines which is vertical to the axis and passes the polar centers. ConclusionIt is important to study the space magnetic induction for the standardization of magnets in magnetic therapy. |
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