Sensors

A Low-cost Active Range Finder

Posted 13 Jul 2003 at 19:19 UTC by steve Share This

A recently published research paper describes an unusual method of creating a low-cost, accurate range sensor using a monochrome CCD camera and a laser pointer with three LEDs attached. The system uses triangulation between the camera's viewing direction and the optical axis of the laser. The trick is that the laser pointer and LEDs must be within the field of view of the camera. In tests, a human operater wields the laser pointer but a robot could do the job as well.

Link broken, posted 14 Jul 2003 at 14:32 UTC by profesor » (Master)

The link in the article doesn't seem to work (I get an error like "Microsot OLE DB provider for SQL server'). Are there any other links that describes this rangefinder?

Another range finder article, posted 14 Jul 2003 at 15:09 UTC by jstrohm » (Observer)

Awhile back I had come across this article discussing a langer range finder. I'm thinking of implementing this in my robot. I would still like to see what the article behind the broken link is saying.

link should be working now, posted 14 Jul 2003 at 16:02 UTC by steve » (Master)

I replaced the URL with an alternate link that doesn't rely on the site's flaky MS SQL database to work...

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