| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a plastics type discriminating method that can certainly discriminating the type of the plastics in an inexpensive constitution without requiring complex information processing, and can easily respond also to addition of a new type of plastics. <P>SOLUTION: The plastics type is discriminated based on the correlation between a reference spectrum obtained by radiating near infrared rays to a plurality of known plastic samples of different types, respectively, and measuring transmitted light transmitted through each plastic sample or reflected light reflected from each plastic sample with a predetermined spectral means, and a measured absorption spectrum obtained by radiating the near infrared rays to the plastic samples of which types are discriminated and measuring the transmitted light transmitted through the discriminated plastic sample or the reflected light reflected from the discriminated plastic sample with the spectral means. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
