Electrode Cap with sintered electrodes, Active or Passive electrodes?
mhadji05
Cyprus
Hello all,
I m wondering if the EEG Electrode Cap with patented, sintered Ag/AgCl electrodes are Active or Passive electrodes?
Do you agree with those definitions?
• The active electrodes have a pre-amplification module immediately after the conductive material between the skin and the electrode. This allows the signal to be amplified before additional noise is added between the electrode and the system that would capture, process or amplify the signal.
• Passive electrodes do NOT have a pre-amplification module, as is the case with active electrodes. Instead, it simply extends the connection from the conductive material to the equipment for capturing, processing or amplifying the signal.
Thank you in advance!
Comments
Marios, hi.
"Electrode caps" are usually always passive unless explicitly stated as active. Both OpenBCI caps, and even the gel-free cap, are passive. The only active electrodes sold are the add-on Thinkpulse kit for Ultracortex.
https://shop.openbci.com/collections/frontpage/products/thinkpulse-active-electrode-kit
William