Do you support hardness checking (i.e. Brunell)

[JustADeveloper]

DoesLabview support the ability to do hardness testing on Steel (via dimple testing)

[J-M]

You have to give a little bit details about the equipment: company, model ...

Jean-Marc

[JustADeveloper]

We currently have software (KingScan III) which interprets reading taken from a Brinell Microscope.  The process is a "dimple" is created in the material from which the hardness is determined.

The following is taken from their web site.

The user simply places the camera over the Brinell impression and aligns the impression within the electronic crosshairs or other provided target styles. Once the image is lined up, the user presses the activation button on the camera or any key on the keyboard to start the measurement. The Kingscan III reads a maximum of 800 points around the circumference of the Brinell impression, 400 diameters in a + orientation and 400 diameters in an X orientation. The diameter of the impression is then calculated in accordance with ASTM-E10. In less than a second, the monitor displays the diameter of the impression and the Brinell hardness number of the impression. It also displays The Figure of Merit (the percentage of points that correspond to the diameter), RND (the percentage of roundness of the impression), the diameter of the ball used in making the impression, and the load used in making the impression. It also includes the sequence number of tests made on the part and the time it took to make the test

[J-M]

What do you want to do? Replace the Kingscan III with your own software and camera?
 

Jean-Marc

[JustADeveloper]

I would like to replace the KingScan software, it is not up to date and is not meeting our needs. I would like to keep our exisitng Camera/scope.

[J-M]

For image processing:  http://www.ni.com/vision/vdm.htm

JM

[JustADeveloper]

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For image processing:  http://www.ni.com/vision/vdm.htm

JM

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I had previously looked at the contents of this link but didn't find anything I thought would translate to what I'm looking for. Of course I could easily have missed it.

[Dennis_Knutson]

You need to search for 'diameter' measurements with Vision. It has been a long time, but I know this is possible. From what I understand, the diameter is all that you need to perform the necessary calculations. Is this true?

[JustADeveloper]

Ok,

Thanks for the advice on what to search for.

[Wes_P]

Hi Everyone,

Thanks for posting to the National Instruments discussion forums.  The short answer to this question, is Yes, this can be accomplished using LabVIEW.  However, LabVIEW is a programming language and environment and there aren't any preexisting solutions for Brinell hardness testing for this specific application that I am aware of.  You might consider searching the NI Community or these Discussion Forums for solutions that other users have developed.  

If you want to use the existing camera to determine the hardness by visually measuring the diameters of the indentations, this can be accomplished with NI Vision Development Module, as noted already.  The Vision Development Module is a module for LabVIEW (and for C based languages) which provides low-level image processing functions.  Using this module and its image processing functions you could build a program that would determine the hardness of a specimen by applying the algorithm that you described in your first post.  However, like LabVIEW, the Vision Development Module is not application-specific; it is part of a programming language that allows great flexibility and functionality in usage.

I hope this helps steer you in the right direction.  Let us know if you have questions.