usb4000 read spectra convert to waveform

[AKCanada]

Hi,

I am working with a usb4000 ocean optics device and I wanted to acquire a set of 10 spectra and determine the average before outputting it to a graph display. So far I have been using the 'read spectra' for the usb4000, averaging all the scans in a loop and simply attempting to output it to a waveform chart. But if I do this my resulting spectrum on the graph does not look accurate.

I've attached my file here.

Any help would be much appreciated and please let me know if I need to clarify anything!

AK

[Edna-S]

Take a look at these example, and how they take average.

https://decibel.ni.com/content/docs/DOC-12597

https://decibel.ni.com/content/docs/DOC-16840

[AKCanada]

Hi,

I don't think the problem has to do with the averaging of the values. I'm more confused about outputting data to a graph. For example there is a "Read spectral waveform" vi which when connected to a "spectral waveform graph" vi outputs the result just fine and I see the spectra on the graph.

However in my case, I would like to use the "Read spectra" vi to simply read in a number of spectra data points, and average them across multiple readings THEN display it on a "spectral waveform graph". However I am not sure of how saved data points are typically transmitted to be displayed on a graph wheras the previous vi "read spectral waveform" appears to already do the appropriate conversions for it to display on the graph?

I hope this makes my query more clear.

Thanks!

[AKCanada]

Hi,

Never mind I have figured out my mistake!

Thanks anyway for your help.

[Edna-S]

Nice to hear, good luck.

[johen]

The Wrapper library contains most of the basic spectrometer control functions. You should only use the functions/VIs belonging to the Wrapper library object. These functions comprise the Wrapper API. The only time you may use functions/VIs outside of the Wrapper is if one of the wrapper VIs itself returns an object of a different type.