| 磁线圈感应电场的无量纲化分析和定位 |
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| 引用本文： | 乔清理,王明时,田心.磁线圈感应电场的无量纲化分析和定位[J].天津大学学报(英文版),2000,6(1). |
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| 作者姓名： | 乔清理 王明时 田心 |
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| 作者单位： | 1. 天津大学精密仪器与光电子工程学院,天津,300072
2. 天津医科大,学生物医学工程系,天津,300070 |
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| 摘 要： | 建立了磁刺激的一般模型 ,以了解和预测磁线圈所产生的感应电场的空间分布 .引入无量纲化分析 ,将影响感应电场强度幅度的因素分成两部分 :c(表示刺激条件 )和 E0 (表示线圈几何特性 ) .通过两种磁线圈电场强度三维分布的仿真 ,确定了磁刺激的效果和影响磁刺激聚焦性和深度的因素 .最后 ,利用本文的结论 ,讨论了在设计合理的线圈、磁刺激仪以达到理想刺激效果时确定电场强度幅度、聚焦性和深度的基本原则
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| 关 键 词： | 磁刺激仪 感应电场强度分析 聚焦性 磁刺激深度 |
DIMENSIONLESS ANALYSIS AND LOCATION OF ELECTRIC FIELD INDUCED BY MAGNETIC COIL |
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| QIAO Qing-li,WANG Ming-shi,TIAN Xin.DIMENSIONLESS ANALYSIS AND LOCATION OF ELECTRIC FIELD INDUCED BY MAGNETIC COIL[J].Transactions of Tianjin University,2000,6(1). |
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| Authors: | QIAO Qing-li WANG Ming-shi TIAN Xin |
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| Abstract: | A model of magnetic stimulation is presented for analysis of the spatial distributions of the electric field induced by magnetic coils.Dimensionless analysis is introduced and makes the factors influencing the magnitude of electric field into two parts:c (represents the stimulation conditions),and E 0 (reflects the geometry of coil).By 3 D simulation of the induced electric field of two kinds of coils,the effect of magnetic stimulation can be demonstrated and the factors influencing stimulating focality and depth are identified.The principles for determining the electric field magnitude,focality and magnetic stimulation depth when designing a reasonable coil and stimulator and achieving ideal stimulating effect are discussed. |
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| Keywords: | magnetic stimulator induced electric field distribution focality magnetic stimulation depth |
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