Abstract
The development and testing of a high-precision low-cost biopotential amplifier are presented in this paper. The amplifier consisting of filters and amplifiers operating at a gain of 92 dB over 0.5–45 Hz bandwidth provides very low noise levels for high-quality brain activity recordings. Signals acquired provide state-of-the-art signal–noise tradeoff. The resulting amplifier developed is an eight-channel EEG recording unit capable of recording brain activities and stores the data for research and clinical applications. Preliminary results obtained from experimentation in alpha rhythms and visual evoked potentials in the occipital region corroborate the precision and robustness of the designed amplifier.
P. V. Tirumani and S. Das have equally contributed to this chapter.
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Tirumani, P.V., Das, S., Swami, P., Gandhi, T. (2018). A Low-Noise Low-Cost EEG Amplifier for Neural Recording Applications. In: Bhattacharyya, S., Gandhi, T., Sharma, K., Dutta, P. (eds) Advanced Computational and Communication Paradigms. Lecture Notes in Electrical Engineering, vol 475. Springer, Singapore. https://doi.org/10.1007/978-981-10-8240-5_65
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