The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
Laser Measurement
Novel Laser Detection System of Foreign Materials in Food
Takashi KUROSAWA, Akira HOSOTANI, Hiroshi MATSUMOTO, Tadashi OHMIYA, Minoru HORIKOSHI, Masao KANAZAWA, Masahito KATTO, Shoichi KUBODERA, Kou KUROSAWA
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Keywords: Foreign materials, Food industry, Laser detection
JOURNAL FREE ACCESS

2008 Volume 36 Issue APLS Pages 1258-1260

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Abstract

We have been developing a detection system using lasers for foreign materials in some foods such as raisins, tomatoes, and grapes. Here we describe experimental results required for constructing the detection system. We have observed that some foreign materials mixed in raisins could be discriminated by taking laser emission reflectance ratios at appropriately chosen two laser wavelengths. Based on the experimental results, a prototype of the foreign food detection system has been produced.

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