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.
(Summary of my reasons in this post, part of a voluminous thread of mostly complaints starting here).
08-19-2017 05:27 AM
Thank you very much, Kevin!