磁谐振成像(MRI)
 
人体躯体由介质圆柱表示，激励脉冲信号为正弦波，通过计算前两个周期的幅度差，可以求出阻抗值。腔体内填充材料的磁导率，在三种测试情况下分别为8257,9214和14800.腔体内波长远小于自由空间中的数值，依次，描述腔内场变化的网格单元尺寸需要很小。
 
仿真数据：圆柱体: er=81, s=0.6S/m
圆柱半径: 8.5 cm
圆柱高度: 28 cm
线材质: copper
线最大半径: 10.15 cm
线最小半径: 0.15 cm
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第1种情况的仿真结果 圆柱: (8.875, -0.95, 0)
腔内介质: 电导率= 8257; 磁导率 = 0.999991
R_simulated = 137.1 mOhms 
R_measured = 140.0 mOhms
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第2种情况的仿真结果 圆柱: (9.3, -0.65, 0)
腔内介质: 电导率= 9214; 磁导率= 0.999991
R_simulated = 178.3 mOhms 
R_measured = 157.0 mOhms
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第3种情况的仿真结果 圆柱: (9.8, -0.95, 0)
腔内介质: 电导率= 14800; 磁导率= 0.999991
R_simulated: 227.2 mOhms 
R_measured: 196.5 mOhms

Magnetic Resonance Imaging (MRI)

MRI simulation project configuration

Thin wire loop and cavityCavity structure