Capturing a frequency sweep and RMS voltage

[Stephanie]

Hello!

 

I'm exciting a transducer with a sine wave that sweeps from 30kHz to 50 kHz and I have it pointing at a mems microphone that is inputting data back into the Analog Discovery 2. I am able to see RMS voltage and frequency in the "Measurements" window, however when I export the data in the "Logger" window, I am only getting 1 single recording of the RMS voltage and frequency per .csv file. Rather than having all the samples in one .csv file, they are being saved in individual files. How can I get the entire sweep to be put in one .csv file?

 

Thanks,

 

Stephanie

[attila]

Hi @Stephanie

You can use the Logging/Script in Scope like this:

 

You can also log and File/Export the history from the Logger tool:

[Stephanie]

Hi Attila, 

 

When I write anything in the script and go to export, it doesn't seem to capture what was written in the script. I have the source set to "oscilloscope", so it grabs data from there. If I set the source to "measurements" it gives me 1 value of RMS and 1 of Frequency.

[attila]

Hi @Stephanie

There is no need to export the View/Logging.
This can save data/picture or execute custom logging script automatically on each acquisition.

The Logger tool also contains RMS measurements which can be exported to file.