Dry EEG Comb Electrodes Technical Information

HanNguyen

What are the dry EEG comb electrodes (https://shop.openbci.com/collections/frontpage/products/5-mm-spike-electrode-pack-of-30?variant=8120433606670) made of? What are its strengthness and flexibility values? Where may I find more detailed information about it? May I connect them to the snap connectors or just the ultracortex headset?

Thanks.

wjcroft

Han, hi.

The comb electrodes come from FRI and also Chinese manufacturers,

https://www.fri-fl-shop.com/product-category/electrodes/eeg-electrodes/

The long and short combs DO NOT attach via snap connectors, but there is an FRI cable that clips onto them from the side. They can be used also with velcro bands that have had holes punched in them. Or elastic EEG caps with holes, etc.

All of the Ag-AgCl electrodes listed are hard plastic (not like the flexible Cognionics), that is first plated with a thin layer of sliver, then chlorided, producing a surface layer of silver chloride.

William