Progress Report #8: EEG Biofeedback System BME 400 November 2, 2006 – November 9, 2006 Client: Daniel Muller, MD, PhD Team Members: Cullen Rotroff (Leader/Communicator) Prakash Rao (Leader/Communicator) Joe Hippensteel (BSAC) Andrew Eley (BWIG) Problem Statement 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 intended for commercial use. Last Week’s Goals • Meet with client on 11/3 and give update on our progress. • Finish Pspice simulations of amplifier/filter and start building something on a breadboard • Continue testing active electrode designs on breadboards and decide which design would be appropriate. • Start planning for the integration of the electrodes and amplifier Summary of Team Accomplishments • Met with Dan Muller on Friday to update him with our progress to date. We were enthusiastically received and told of the potential of a possible budget increase. • Continued simulating our circuit design on Pspice • Completed a very simple but encouraging bread board simulation for an active electrode design capable of cleanly amplifying a 100 micro volt signal. This Week’s Goals • Begin bread board assembly of bio-amplifier • Complete and test first Active electrode • If active electrodes and bio-amplifier work as expected begin planning implementation of design, otherwise, back to the drawing board. Difficulties none ActivitiesTeam Member Activities Time Cullen Rotroff Friday meeting (2.0), work on electrodes (1.0) 3.00 Prakash Rao Friday meeting (2.0), Pspice simulations (3.5) 5.50 Andrew Eley Friday meeting (2.0), Pspice simulations (3.5) 5.50 Joe Hippensteel Friday meeting (2.0), work on electrodes (1.0) 3 Total 17.00 Expenses Product Quantity supplier priceProject Schedule September October November December Task 8 15 22 29 6 13 20 25 27 3 10 17 24 1 8 13 15 Preliminary Designs Meeting with client circuit design literature research Friday Team meetings circuit construction Deliverables Progress Report Mid semester presentation Mid semester paper End Semester Presentation End Semester Paper Web site Semester Wrap-up with Advisor Prototyping acounting/budgeting final design developments analysis/testing final prototype
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