David Alfi

Hello,

I am measuring an analog signal (CH_1 on the scope) and reading the raw data (voltage samples) from the scope using my C# software.

When the Volt/Dev is set to 1 V/dev (resulting in a total of 8 Vpp on the screen), the resolution of the samples is 0.04 V (40 mV).

When the Volt/Dev is set to 0.1 V/dev (resulting in a total of 0.8 Vpp on the screen), the resolution of the samples is 0.004 V (4 mV).

It seems that the scope has 200 discrete voltage levels in its A/D converter.

Am I correct?

If I still need to measure at 1 V/dev (e.g., for a signal with 7 Vpp), how can I increase the voltage sample resolution?
I need a resolution better than 0.004 V (4 mV).
 

I know that i can change the number of samples in Time X axis (1k or 10k samples for example).
My Question: can i change the resolution scale for Voltage Y axis ? when i set the volt/dev to 5 (to measure 28V signal) the resolution is not good enough....
I read the voltage samples to csv file and i see that the resolution is 0.2V
It seems to be that the vertical points are only 200 points: 40V on the screen, 0.2V resolution so 40/0.2=200 points only