Department of Physics, University of Oslo, Norway.
Physiol Meas. 2010 Oct;31(10):1369-79. doi: 10.1088/0967-3334/31/10/006. Epub 2010 Aug 24.
We used the finite element (FE) method to estimate the spatial sensitivity of a needle electrode for bioimpedance measurements. This current conducting needle with an insulated shaft was inserted in a saline solution and the current was measured at the neutral electrode. Model resistance and reactance were calculated and successfully compared with measurements on a laboratory model. The sensitivity field was described graphically based on these FE simulations.
我们使用有限元（FE）方法来估计用于生物阻抗测量的针电极的空间灵敏度。这种带有绝缘轴的电流传导针插入盐溶液中，并在中性电极处测量电流。模型电阻和电抗进行了计算，并与实验室模型上的测量结果成功进行了比较。基于这些 FE 模拟，灵敏度场以图形方式进行了描述。
