Single Channel Low Noise EEG Amplifier for Biomedical Instrumentation
Electroencephalography (EEG) has been used for a long time as a technique of medical diagnosis and observation of brain anomalies. In several cases, the level of the output biopotential signal is in the order of microvolts and the measurement is easily corrupted by external interference. In this study, the design of a low noise EEG amplifier is presented. The developed biopotential amplifier is composed of a low noise instrumentation amplifier, a band pass filter with a programmable gain amplifier and with a Right Leg Driver (DRL) circuit. Simultaion results have shown an exhibition of a low noise level of about 5 nV/√Hz After analog processing and filtering, the signal is sampled and digitalized by commercial data acquisition card interfaced to a PC. In the other hand, we explain the development of a wireless EEG acquisition system powered by a thermoelectric energy scavenger.
EEG EEG Amplifier Bioamplifler Analog processing Wireless EEG Thermoelectric generator
Hyem SAADI Merzak FERROUKHI Mokhtar ATTARI
Laboratory of Instrumentation (LINS), Faculty of Electronics and Computers Université des Sciences et de la Technologie Houari Boumediene (USTHB) P.O. Box.32, Bab-Ezzouar 16111 Algiers, Algeria
国际会议
成都
英文
200-204
2011-01-14（万方平台首次上网日期，不代表论文的发表时间）