[EEG] OpenEEG notes - 12/6

Josh Bailey josh at anarkiwi.com
Sun Dec 6 17:59:42 PST 2009


* Referendum on reference electrodes.

OpenEEG and derivatives have two electrodes per channel, no shared ground 
reference. We want shared ground. John, Josh opine that should be able to 
tie -tve op-amp inputs together board-side. Andreas has tried electrode 
side but Josh, John opine this will create a noisy ground loop.

Next step - try to short it board side and see.

* Josh needs to bring narrow-gauge shielded cable for OpenEEG to cap 
connectors.

* Intermediate goal for cap is to build 4/6 channel system, adapt OpenEEG 
for shared ground. If it works go big for 20 channel, with redesigned 
system.

* Also need 2-channel development mess around system. Maybe OpenEEG.

* Need a better shelf (as in bigger).

-- 
Josh Bailey (josh at anarkiwi.com)



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