Test and Measurement Forum

Slow data acquisition in Excel

Post general discussions on using our drivers to write your own software here

Slow data acquisition in Excel

Postby G.H.Stephenson » Wed Nov 12, 2003 4:03 pm

Hi, I have setup a DAC16 to run in an excell macro, using all 8 channels, and a userform full of graphs. But for some reason it takes 6 seconds to detect there has been a change by the inputs, and only seems to sample evry 2 seconds. Can you help me?
I can e-mail the program to you if it is any help
Thanks
Graham
G.H.Stephenson
 

Postby markspencer » Thu Nov 13, 2003 8:54 am

Hi,

I would recommend that you use the function get_cycle, this will let you know when it has a converstion for each of the active channels.

If you are using filtering then this will also increase the amount of time to get a signal.

The ADC-16's sample rate is 1 sample every 1.5 seconds when running at 16 bits this can be sped up if the resolution is reduced.

Best regards,
Regards,

Mark Spencer
User avatar
markspencer
Site Admin
Site Admin
 
Posts: 598
Joined: Wed May 07, 2003 9:45 am

Postby G.H.Stephenson » Thu Nov 13, 2003 12:29 pm

Thankyou, I changed to resolution to 14bits, just took a while to figure out why it was giving me wored results, but i have sortred it now,
Thanks
G.H.Stephenson
 


Return to General Software Discussions

Who is online

Users browsing this forum: No registered users and 0 guests