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The goal of our project is to design and build an inexpensive, portable electroencephalogram (EEG - brain wave monitor) that teaches meditation practitioners to achieve optimal meditation by indicating the presence of EEG alpha and theta waves. This shall be achieved through a relatively inexpensive, minimally distracting, and potentially portable device, ultimately intended for commercial use.
From left to right: Joe Hippensteel, Cullen Rotroff, Prakash Rao, Andrew Eley
We have completed the design and had a PCB made. The active electrodes and headband are complete. The device still needs some troubleshooting but the concept works. We had our project exhibition on Friday, December 8th and we are looking forward to finalizing this project next semester.
Electrode pads are in place for comfort and electrodes are removable for easy cleaning.
Final headband design with two active electrodes and a DRL.
Final design for the EEG Biofeedback device. Fabricated to fit in a small box for easy use.
The EEG Biofeedback device can be comfortably worn while sitting or clipped to the hip.
| Week | Reporting Period Beginning | Activities |
|---|---|---|
| 1 | September 8 | Form teams, set up meeting with client, begin background research |
| 2 | September 15 | Discussed circuit ideas with Prof. Webster, Wrote PDS, Continue research |
| 3 | September 22 | Broke into two teams to tackle two areas of the project, Continue research |
| 4 | September 29 | Research into chip manufacturers and active electrode design, obtaining parts |
| 5 | October 6 | looked into previous semester designs and testes last semesters circuit |
| 6 | October 13 | Met with Elizabeth Felton to discuss EEG characteristics, started mid-semester presentation |
| 7 | October 20 | Disign and test filter circuits, finish mid-semester presentation, component search |
| 8 | October 27 | Continue Pspice simulations, test active electrodes. |
| 9 | November 3 | Continue Pspice simulations, Fabricated/Tested active electrode on bread board. |
| 10 | November 10 | Pspice/Research into design layout, active electrode testing |
| 11 | November 17 | Make PCB board layout and submit design for fabrication. Aquire parts and assemble headband. |
| 12 | December 1 | Complete prototype design and test. Put together poster presentation. |
| 13 | December 8 | Give presentation on design at ECB fair. Work on final report, and finalize notebooks |
| 14 | December 15 | |
| 15 | December 22 |
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PDS (Oct 2 2006, 13 kb) |
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Mid-Semester Presentation (Oct 27 2006, 661 kb) |
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Final Poster (Dec 11 2006, 9493 kb) |
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Final Report (Dec 13 2006, 491 kb) |
