From: jiva_at_humboldt1.com
Date: 2001-05-20 19:43:18
> > I don't mean to add more work but might it be possible to add
> > a companion text file that explains the function of various
> > "blocks" in the design?
>
> 1) C1,R1 forms an input side differential mode HP with fc=0.16Hz to
> prevent IC1 from saturation by electrode offset DC-voltages.
... thank you, I'll add this to the project specs.
> >
> > I noticed Porr's design has user adjustable gain in the preamp.
> > Might that be desirable?
>
> I assume, that there is not much space left on the
RS232analog03-board.
> With a future 16bit ADC-board, adjustable gain could be obsolete.
> For an exact calculation it would be desirable to know, what input
> voltage-ranges should be processed.
> The new rs232eeg03analog has an input range of 512uVpp
> and a resolution of 0.5uV.
>
1) i forgot about board space.
2) i wonder if the choice of electrodes might influence
the issue?
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:30 BST