通过对Z轴磁场梯度和匀场线圈电流的多项式拟合，以获得磁场不均匀而引起的相位分布。
The phase mapping method of a field inhomogeneity based on an Z axis pulse field gradient and polynomial fitting procedures of the axial shimming coil currents were described.
目的对在线扫描扩散成像法下由患者运动和磁场不均匀引起的MR图像运动缺失现象进行修正和补偿。
Objective Correct MR line scan diffusion image with motion missing caused by patients motion and asymmetric magnetic field.
此外，在准静态测试条件下，实验研究了导轨表面磁场不均匀性对高温超导块材的悬浮力性能的影响情况。
Moreover, we investigated the influence of the magnetic inhomogeneity of the PMG on levitation force of the bulk superconductor in a quasi-static state.
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