| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To correctly identify the material quality of even transparent or semitransparent plastics. <P>SOLUTION: A plastic identifying apparatus includes both a belt conveyor 4 for transferring a plastic to be identified P by placing it on a belt 4a made of a stainless steel plate and a Raman scattering identifying device 5 for irradiating the plastic to be identified P on the belt conveyor 4 with a laser beam L, acquiring Raman scattering light R scattered from the plastic to be identified P, and identifying the material of the plastic to be identified P. Since a laser beam transmitted through the plastic to be identified P is reflected at the front surface of the belt 4a to reduce the effects of the Raman effect due to the belt 4a even if the plastic to be identified P is transparent or semitransparent, it is possible to acquire distinctive Raman scattering signals of the plastic to be identified P having very few effects of the belt 4a and correctly identify the material of the plastic to be identified P. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
