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http://hdl.handle.net/2289/7852| Title: | EEG Bio-Amplifier |
| Authors: | S, Sujatha |
| Thesis Advisor: | B, Ramesh Ramachandran, Hema |
| Issue Date: | 1-Jun-2017 |
| Publisher: | Raman Research Institute |
| Citation: | RRI-EEG Internal Technical Report No: 3 |
| Abstract: | A low-noise bio-potential amplifier, for use with weak bio-signals such as EEG (electroencephalogram), has been developed, specifically for use in Brain-computer Interface systems. This can be used to remove noise and amplify bio-signals to improve signal quality and provide adequate voltage levels for digitisation and signal processing. Using a series of filters and multi-stage amplification, the bio-amplifier band-passes frequency components in the range 1Hz and 35Hz, and provides a gain in the range 8000 to 1000,000. The gain and offset are adjusted automatically, so as to maintain the output in the 0 - 1V range. This bio-amplifier unit is routinely used in our SSVEP-based BCI system and its performance has been in par with a commercially available system. |
| Description: | Restricted Access |
| URI: | http://hdl.handle.net/2289/7852 |
| Copyright: | 2017 Raman Research Institute, Bengaluru |
| Appears in Collections: | Technical Reports (EEG) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| EEG bio-amplifier report.pdf | Restricted Access | 751.91 kB | Adobe PDF | View/Open |
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