双模神经信息无线检测系统的设计与实现
摘要
A dual mode wireless recording system for electrophysiological and electrochemical signals was designed, realized and measured. The system consisted of dual mode neurosignals detection module, process module, wireless communication module and software component. Its current and voltage resolutions were 0.06 nA and 0.6 mV, respectively. The performance of the system was demonstrated by electrophysiological measurement, AA (ascorbic acid) measurement and dual mode measurement. The signal-to-noise ratio (S/N) of action potential recorded could reach 11. The current response increased linearly with the concentration of AA in the range of 0~285 μM with a correlation coefficient of 0.99036. A dual mode detection measurement with custom written LabVIEW program was successfully performed. The results indicated that the recording system was suitable for wireless detection of electrophysiological and the electrochemical signals.