- From: Nils Juergens <ju_at_isf.rwth-aachen.de>
- Date: Mon, 26 Apr 2004 10:52:42 +0200
On Fri, 23.04.04, lukit_at_rozsomak.hu wrote: > I have to convert 8 S/E analog channels to digital signals using an > Advantech PCI 1710HG. It has a maximum sample rate of 100 kHz. With the > comedi_command I get fine results below 32 kHz (4 kHz for each channel), > however there is a distortion above it: the 1st chan's maximum and minimum > level shrinks (eg. +-10V becomes +-6V) and the 2nd one 'hears' the 1st one. Try to use only one channel at a rate above 32kHz and see what it does. It is possible the ADC of your card can do 100kHz but the multiplexer and/or opamp are not fast enough. Try contacting you card vendor for support. good luck Nils
Received on 2004-04-26Z07:52:42