hello...i want to acquire EEG signals using LabView. its a PCI card 6250 and connector block is SCB 68.

[learner16]

hello..

i want to acquire EEg signals using Labview.

First i tried to acquire waveforms from Function Generator. it uses PCI Card 6250 and SCB 68 connector block .

bt it is not acquiring signals.. sampling rate is 1000 and samples to read is 125.

 I am new to VIs.. please guide me.

Thanks

[PJS]

your vi works fine for me.  so when you say that "it is not acquiring signals", what do you mean? are you sure that you are connected to the correct pins on the scb-68? can you check your function generator on an o-scope?  impendance matching?   if you are getting nothing, my guess is your connected wrong.  If you are getting an error message, you need to relay what that is.  But the VI works fine for me.  What is the freq of your function generator?

[PJS]

It occurs to me also that the example that you did defines the device as dev1.  check in max to make sure that is the same name used as well.

[ryan_d]

Hello everyone,

Try setting up an acquisition on analog input channel 0 (ai0). To do this, wire one lead from your signal source to ai0 (pin 68) and the other lead to ai8 (pin 34) and select differential as you input configuration. If you’re still not seeing a recognizable signal, try connecting a known voltage (a battery works great) to those channels. If you’re not seeing any results on this channel, try testing on different analog input channels. Please use the Measurement & Automation Explorer (MAX) test panels when performing your test. Below is a screen shot of a MAX test panel for your device. If you’re still having difficulties please post back with information regarding your hardware set up and any DAQmx configuration details you might have. Don’t hesitate to post screenshots!

Message Edited by ryan_d on 10-05-2007 03:50 PM