电极形状对无创血糖检测精度影响的研究

Study on impact of electrode shape on detection precision of noninvasive blood glucose

在低频段时,为了提高基于射频信号的无创血糖检测的精度,本文探讨了圆形、方形、螺旋形电极分别在模拟的三种不同浓度血糖溶液中对S11参数的影响,从而分析电极形状对血糖检测精度的影响。研究表明:电极形状与血糖检测精度存在一定关系,在谐振点时,相较于方形电极和圆形电极,螺旋形电极所测得的S11参数幅值最小,其血糖检测精度最高,因此,该形状电极更适用于无创血糖检测。

In order to improve precision of noninvasive blood glucose detection based on radio frequency signal in lower frequency band, investigate impact of circular, square, spiral electrodes on S11： parameter respectively in simulation of three concentrations of glucose solution, so as to further analyze influence of electrode shape on blood glucose detection precision. Study shows that electrode shape has a certain relationship with blood glucose detection precision, besides, compared with square and circular electrodes, the measured amplitude of Su parameter of spiral electrode is the smallest at resonant point, while blood glucose detection precision is the highest, so spiral electrode is more suitable for noninvasive blood glucose detection.