A programmable and real-time signal acquisition system for ectroencephalogram

• Main Authors: Yu-Chin Wang, 王裕進
• Other Authors: Ming-Shi Wang
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/32584066191460311564

碩士 === 國立成功大學 === 工程科學系專班 === 91 === In this thesis, a tentative Electroencephalogram(EEG) measurement instrument has been designed based on System-On-Chip(SOC). The EEG signal is sensed by electrode plates and amplified by a pre-amplifier (INA321, product of TI) with 1063 voltage gain. The amplified signal is then sent to SOC(CY8C26233-24PVI) which contained programmable digital and analog circuits for other amplifying、filtering、and doing analog to digital conversion. The programmable is accomplished via the uC of the SOC which accepted the commands from a PC controller. The PC controller is used to control the instrument and accepting the digital signals from the instrument and doing the post-processing, like display and storing the data. The designed instrument contains 16 channels and each channel is an embedded measure module. Each measure module contains electrodes, pre-amplifier one SOC and interface circuit. The synchronization mechanism for multiple channel measurement is via interrupt technique. PSoC Designer Tool was used to design the system. The system’s noise is under 0.36uV.