I've used one of these devices in my graduate work. It scans over 180 degrees with a resolution of.5 degrees.
It returns 361 distance values with accuracy of ~2cm in ~50ms/scan. Coupled with a 500kbps serial card, you can capture data in real time. I'm guessing they do this while changing the angle that the scanner is pointing in. I'm not sure how it calculates distance, though. I don't think you could model the tops of things either.
http://www.sickusa.com/live/master/datasheet.asp?P N=1015850&FAM=Measurement
I've used one of these devices in my graduate work. It scans over 180 degrees with a resolution of .5 degrees.
It returns 361 distance values with accuracy of ~2cm in ~50ms/scan. Coupled with a 500kbps serial card, you can capture data in real time. I'm guessing they do this while changing the angle that the scanner is pointing in. I'm not sure how it calculates distance, though. I don't think you could model the tops of things either.
What about Stalin and the millions that were killed under his rule of the USSR?
first post!!!