Hi,
I am using Keithley 2000 meters and labview to measure and record my experimental data. They worked fine for general DAQ, however, one of my recent research projects requires fast sample rate, e.g. greater than 500 S/s. The maximum sample rate I can have now is about 4 S/s at 6.5 resolution using my current VI based on the modification of the original driver. The website claims it can collect up to 2000S/s at 4.5 digits. I tried to set the resolution at 4.5, but still I could not increase my sampling rate. I have attached a simplified VI where I have only one type of measurement. In my actual experiment, it may require up to 6 input signal, e.g.,Volt, current, or resistance, simultaneously .
P.S. I am using GPIB to USB cable for data communication. Sub VIs are included in the attachments as well.
Thanks.
Andrew