摘要
设计了一套皮肤电阻采集及数据分析系统。皮肤电阻信号经由放大电路、AD转换模块、数据接收端完成采集。测量系统最大引用误差仅1.63%,准确度高;实现了皮肤电阻信号的连续采样,采样频率40Hz,结合时频分析,可观察到20Hz的频谱信息。最后通过一个实例验证了音乐刺激对皮肤电阻的影响。
A skin resistance acquisition and data analysis system is designed in this paper.The skin resistance signal is collected by the amplifying circuit,AD conversion module,and data receiving terminal.The maximum reference error of the measurement system is only 1.63%,with high precision.The continuous sampling of the skin resistance signal is realized with the sampling frequency of 40 Hz.Combined with time-frequency analysis,the spectrum information of 20 Hz can be observed.Finally,an example is given to verify the effect of music stimulation on skin resistance.
出处
《工业控制计算机》
2020年第11期7-9,共3页
Industrial Control Computer
关键词
皮肤电阻
数据采集
时频分析
USB
音乐刺激
skin resistance
data acquisition
time frequency analysis
USB
music stimulation
