Based on the measured input impedance characteristics or the resonance parameters of a micro-strip antenna the dielectric constant can be obtained with the help of a computer.
借助计算机程序，可由微带天线的输入阻抗特性或谐振参数直接求出介电常数。
2
To obtain a constant gradient magnetic field outside unilateral nuclear magnetic resonance (NMR), optimal design method based on finite element method (FEM) and topology optimization is proposed.
为了在单边核磁共振仪器外产生梯度恒定的磁场，提出利用基于拓扑优化和有限元法的优化设计方法。
3
The method adjusts time constant and gain of compensation-circuits with determining change of magnetic resonance signal of phantom.