--- Joe Street <jstreet@...>
> of an independent circuit for testing the impedance
> between two
> electrodes. I find it best to check each electrode
> against the DRL
> electrode individually but any two electrodes can be
> connected to the
> circuit and an LED gives a GO-NOGO indication,
i think the impedance tester is a good and handy
device to have.
I would verry much like to bulid it, would make life
a lot easier to test electrode leads.
Just a few questions:
you mentioned a specific frequency:
"and that it measures the contact in the frequency
range of interest".
dues that meen EEG frequency and only ?
Could the impedance tester be accurate for measuring
other bio electric signals (ecg,eog,emg)
in electrode leads ?
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