DAQ Huge amount of data

DAQ Huge amount of data

Post by Urs Bl » Tue, 03 Aug 2004 16:58:01


Hi list,

some coworkers of mine want to have a system with DAQ card and LabView
under Win XP, acquiring 16 channels over 7 seconds with 4kHz sampling
rate? This results in half a million datapoint, each 12 bit.
I think this is ok to process in a PC of mowadays when using enough RAM.

But what is the best method to transfer the data from the 'card' to the
PC memory?
Any comments or even better sample VIs are very welcome.

Best Regards
Urs Bli
 
 
 

DAQ Huge amount of data

Post by Urs Bl » Wed, 04 Aug 2004 15:59:12

Sorry, something eent wrong the 1st time

Some coworkers want to read 16 channels at 4kHz over 7 seconds. This
results in hal a million datapoints 12 bit each. The acqiring is started
by a hardware trigger and shall a perfect samplinf without any
interruption or woblling or the like.
The system is a nowadays PC under Win XP and Lanbview, the card is fast
enough.

I guess the PC can handle the data processing, but what is the best way
to feed the data from the card to the PC memory?
I would be very greatful for any hints or even examples.


Thanks
Urs Bli

 
 
 

DAQ Huge amount of data

Post by Matthew » Sun, 08 Aug 2004 07:13:59

Urs,

Please see my response to your other post on this subject.

http://www.yqcomputer.com/ %24_12_&UCATEGORY_S=0

Best Regards,

Matthew C
Applications Engineer
National Instruments