spectral lines of RGB Color sensor

[bocil]

hi
I am trying to do spectral analysis of Intensity-wavelength. What I do to connect my RGB sensor to a myDAQ.

i just need to see the signal (DC-Voltage) output on my PC. The sensor has 20 mV - 1,5 V Output.

This sensor detect color change, so I can save the output to a text file using labview.

then i just want to calculate percentage intensity of light for any one wavelength in the source.

How can I use labview to do this analysis and make a real-time graph of Intensity on the Y axis and wavelength on the X axis ?

Also if someone has a VI which can explain me this it would be highly appreciated.

Thanks in advance for any suggesting.

[Topper_Harley]

Hi Bocil,

getting the voltage to your VI is pretty easy using the DAQ Assistant Express VI. Follow the linke below to get a step by step tutorial.

NI-DAQmx Express VI Tutorial

http://zone.ni.com/devzone/cda/tut/p/id/2744

Creating a visualization like the on in your screenshot is more advanced. You can use itensity graph or diagram to acomplish this. It would be a lot easier if you only plotted the voltage value, without the repective color in your graph.

Displaying 4 Dimensional Data in a 2 Dimensional Intensity Plot

https://decibel.ni.com/content/docs/DOC-14867

Have a look at the this example, it comes pretty close to your projec:

Light Intensity Measurement

https://decibel.ni.com/content/docs/DOC-16986

Regards, Topp