08-11-2017 04:25 AM - edited 08-11-2017 04:40 AM
I have the current set-up below:
- OMEGA pressure gauge connected to signal amp connected to USB-6002, finally connected to laptop (powered by AC adaptor) via USB
- Differential mode
- I am using a MatLab program to capture the data
I am seeing this step-wise function in the Volts (V) vs Time plot (s). Any idea why this is happening? The set-up is well grounded. I have attached a sample 10 sec data at 100 Hz.
Thank you in advance for your help!
Solved! Go to Solution.
08-11-2017 04:40 AM
Addendum: This quantised effect is not present in RSE mode (Volts vs time (s))
08-11-2017 06:30 AM
At a glance, it sure looks like A/D quantization. Note that both the X and Y axes in your second posting have a significantly different scale than in your first. The quantization is probably still there, it's just obscured by all the additional noise and the much wider view.
08-19-2017 05:27 AM
Thank you very much, Kevin!