| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and an apparatus for identifying plastic based on Raman scattering identifying plastic materials at high speed. SOLUTION: In this method, a Raman scattering signal is obtained from Raman scattered light R scattered from a plastic P to be identified, by irradiating the plastic P to be identified with laser light L, and the material of the plastic to be identified is identified based on: Raman scattering intensity in one or more of known peak positions and Raman scattering intensity in a known baseline position set by measuring a Raman scattering spectrum of a known plastic beforehand; Raman scattering intensity at a Raman shift wavenumber corresponding to a known peak position for every material of a plastic to be identified obtained from the Raman scattering signal of the plastic to be identified; and Raman scattering intensity at a Raman shift wavenumber corresponding to a known baseline position. COPYRIGHT: (C)2008,JPO&INPIT
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