planar flux density

例句：

1. 1.The measurement of planar flux density is crucial for the design of magnetic materials.
   测量平面磁通密度对于设计磁性材料至关重要。
2. 2. The new sensor uses a planar flux density measurement to detect changes in the magnetic field.
   新传感器使用平面磁通密度测量来检测磁场的变化。
3. 3.In this study, we investigated the effect of planar flux density on the performance of magneto-optical devices.
   在这项研究中，我们研究了平面磁通密度对磁光器件性能的影响。