03/30/2007 • Image processing / Optical metrology

pco.inspector highspeed enables mobility

Do you know every production manager's worst nightmare? It's errors – or even stoppages – during the production process. On-site disruptions are often combined with great frustration and high costs. Therefore it is important to determine the cause as quickly as possible and to eliminate it with certainty. To this end, PCO AG's engineers have come up with a special type of inspection system – one that's mobile and extremely fast. It resides in a special case, has its own energy supply via storage batteries and can be transported and implemented directly at the suspected source of error.

Despite brisk speeds: spotting errors

Discovering disruptions is often not easy, especially if a fast production process is involved, and the human eye is forced to capitulate – such as production of mechanical parts by punching. As example, with 5 punches per second a metal band is advanced through a machine where various processes take place. What happens in this situation is that something gets stuck and the machines reports errors. In such cases the observational capacity of a technical specialist on-site is insufficient because the human eye can only differentiate up to 16 individual pictures per second and the movement of the punching process is much faster.

On the other hand, the artificial eye of the pco.inscpector can achieve over 1000 images. This special case contains a heavy-duty, 10-Bit CMOS camera, the pco.1200 hs. At a resolution of 1280 x 1024 pixels the nimble eye inspects at 636 images per second, and in VGA-resolution even 1357 images, all without any trouble. Primary storage of 4 GB camRAM stands ready to utilize. The camera communicates via a FireWire interface (IEEE 1394, from Q4/2007 GigE Vision too) with an integrated tablet PC in the case as the processing unit.

With the heavy-duty camera pco.1200 hs, the technical specialist is now in a position to film sequences during production and then later review the movements clearly in slow-motion mode, analyzing what is going wrong. In the mentioned example, the back swing of the puncher turned out to be too large, such that the following process could not properly adjust its position. After having seen the problem in slow motion, the engineers immediately solved the problem by using a spring with another spring rate.

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PCO AG

Donaupark 11
93309 Kelheim

Phone: +49 9441/2005-50
Fax: +49 9441/2005-20