本文中我们确定了最适合于基于阻抗的血氧测量的电极类型、大小和放置部位。满足下面条件的电极系统能提供较高的信号伪差比(SAR)和可靠性:1)基线阻抗低;2)贴附力强;3)物理稳定性好;4)有效面积大;5)柔性大处薄。我们在贴附胶和导电橡胶电极两大类中比较了14种电极系统。贴附胶电极系统易于应用,与皮肤接触 In this article, we have identified the electrode type, size, and placement that is best suited for impedance-based oximetry. Electrode systems that satisfy the following conditions provide high signal-to-noise (SAR) and reliability: 1) low baseline impedance; 2) strong attachment force; 3) good physical stability; 4) Flexible large thin. We compared 14 electrode systems in two broad categories of adhesive and conductive rubber electrodes. Affixed with plastic electrode system is easy to apply, in contact with the skin