Process for identifying objects using an optical...

Details Process for identifying objects using an optical... Process for identifying objects using an optical...

2006-07-04

2006-07-04

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C209S577000

Reexamination Certificate

active

07071469

ABSTRACT:
A process and an apparatus are useful for identifying articles which are at least partly made from at least one polymer. The process and apparatus use an optical spectrometer and a transport system, whereby the articles to be identified are moved by the transport system past the optical spectrometer, where they are irradiated, response measured and analyzed. An external reference object is also transported, by the transport system, past the optical spectrometer such that it becomes possible to use the measured response for the reference object to identify, with greater accuracy, the articles to be identified.

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