The amplitude of biopotentials of the person.

Тапка · Post by **Тапка** » Sat Feb 13, 2010 15:07

Dear Andrew , enlighten me plz , what voltage are present at the removal of biopotentials from the person at the EEG,eog,EMG,ECG .
I mean the minimum threshold to offset which should have the amplifier.

Тапка · Post by **Тапка** » Sat Feb 13, 2010 16:24

http://131.114.22.3:8080/TESTNET/presen ... li2008.pdf . Like nasell. But still interested in the opinion on the basis of practice.

Post by **Андрей Патрушев** » Sun Feb 14, 2010 15:15

So I told You the specific parameters of the amplifier prescribed in the subject electroencephalograph...

Тапка · Post by **Тапка** » Sun Feb 14, 2010 16:17

I've just found several schemes electrooculogram , there is probably ,there is probably more than the voltage in the EEG signal, is this it attracted me.

Тапка · Post by **Тапка** » Mon Mar 01, 2010 1:19

Andrew,is an important issue - whether to shield the wires running from the electrode on the face????
The electrodes are homemade , so I think - maybe to shield them from pulses ( the device itself will be powered by batteries to avoid network interference).

Post by **Андрей Патрушев** » Mon Mar 01, 2010 11:31

Тапка wrote:Andrew,is an important issue - whether to shield the wires running from the electrode on the face????
The electrodes are homemade , so I think - maybe to shield them from pulses ( the device itself will be powered by batteries to avoid network interference).

To have a reliable ground, otherwise it will re-emit.