From: sademade (sademade_at_yahoo.com)
Date: 2001-12-20 02:58:00
--- In buildcheapeeg_at_yahoogroups.com, "Joerg Hansmann" <info_at_jhansmann.de> wrote:
>
> Hi,
>
> I have changed my comEEG prototype back, as it has been before
> and done some noise measurements.
>
> The picture shows the 50uVp-p calibration signal to the right
> (height in pixel: 167) and the noise of the shorted input to the
> left side. The noise is 4 pixel high: That means about 1.2uVp-p
>
> The 555 PWM-ADC contributes half of the noise, the rest is from the
> amplifier stage.
>
>
> Regards,
>
> Joerg
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:35 BST