脑电图机电极与头皮接触阻抗测试系统的设计与实现

Design and implementation of contact impedance measurement system between electroencephalogram electromechanical electrode and scalp

本文采用32位高精度STM32F103ZET6单片机作为处理器,设计了一套接触阻抗的测试系统。实验结果显示该系统可以实现电极与头皮接触阻抗的测试,并通过绿色发光二极管亮灭表示对应电极与头皮之间接触是否良好。

In this paper,a 32-bit high-precision stm32f103zet6 single chip microcomputer is used as the processor to design a set of contact impedance test system.The experimental results show that the system can test the contact impedance between the electrode and the scalp,and indicate whether the contact between the corresponding electrode and the scalp is good by turning on and off the green LED.