Laser Beam Quality Measurement (M^2 Measurement) using Image Processing (NI Vision)

[parthpanchal07]

Hello,

Is any body previously work on M^2 Measurement of Laser Beam?

If yes, then Please help me out need Little guidance. 

I am trying to make a VI which determine Laser beam quality and measurement using NI Vision. 

I have a average command on Vision. But, this i am not sure How should I processed?

Any help will be appreciate.

Thanks 

[Sekine108]

In order to provide any suggestions, can you elaborate a little more on what you are trying to measure? What constitutes as a good quality beam? Is this light intensity? Shape of beam? Size of beam? Etc?

Once you determine what makes a good beam we can then determine what processes you can take to measure those conditions.

[parthpanchal07]

Basically, the Laser Beam Determination based on,

Light Intensity

Shape of the Beam

Background Correction

Centroid position X Y

Defining the cordinate system to Beam 

Recording the beam location and calculate the change in the location

Size of Beam

Beam Quality in % 

Thanks,

Parth

[Sekine108]

Are you using Vision Assistant by chance? There is a good tutorial on all the different functions that can be utilized with NI's vision software linked below. 

Even if you're not using Vision Assistant (which I would recommend doing) you can also create this same functionality with IMAQ VI's in a LabVIEW project as well.

NI Vision Assistant Tutorial

http://www.ni.com/pdf/manuals/372228m.pdf

[parthpanchal07]

ok. I used Vision previously for other kind of diagnosis. 

Do you have any idea about how can i find the intensity profile of the laser beam using IMAQ?

Thanks,

Parth

[Sekine108]

I've never personally done it, so I can't really say. But this form post talks about a few approaches to get the intensity profile. I hope that's helpful!

https://forums.ni.com/t5/Machine-Vision/To-Extract-Intensity-Profile-from-Image/td-p/138356