Laser screen to build profile of object.

[JakeAdkins]

Is there such a thing as a laser screen? I am thinking of having a series of horizontal lasers so that when objects pass through the screen I can tell which lasers were tripped and when they were tripped. I could use that information to build a profile of the object that broke the screen. It does not have to be super accurate ±1/2” on the profile would be OK. I know that the accuracy has to do with spacing of the lasers.

After I build the profile I would like the lasers to vaporize the object…Just kidding, couldn’t resist I don’t get to talk about lasers very much.

Does this thing exist? If so where can I buy it or where can I buy components to build it? Thanks

 

[GregLocock]

We use a similar thing called a shadowgraph. Not quite as exciting as lasers.

Cheers

Greg Locock

SIGlease see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[MacGyverS2000]

If all you want is a profile, make sure the background is relatively free of crap, use a webcam to snap a B/W pic, and do thresholding... instant profile, accurate to the pixel level of your camera.

Lasers are often overrated, even if attached to the heads of sharks.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[JakeAdkins]

This is going to be used to scan installed pipe. I cannot keep the background steady it will change with the building. I will be using the profile to locate the center of the coupling. There is an automated process that will be preformed after that.

 

[JakeAdkins]

I did find one that will work for me. Made by Keyence

http://www.keyence.com/products/sen...0_100.php?id=70c8491412d4c35242575476ecbe0ce3