High-speed terahertz imaging toward food quality inspection

被引：103

作者：

Ok, Gyeongsik ^{[1
]}

Park, Kisang ^{[1
]}

Kim, Hyun Jung ^{[1
]}

Chun, Hyang Sook ^{[2
]}

Choi, Sung-Wook ^{[1
]}

机构：

[1] Korea Food Res Inst, Food Safety Res Grp, Songnam 463746, Gyeonggi Do, South Korea

[2] Chung Ang Univ, Sch Food Sci & Technol, Anseong 456756, South Korea

来源：

APPLIED OPTICS | 2014年 / 53卷 / 07期

关键词：

FOREIGN-BODIES; SPECTROSCOPY; SYSTEM;

D O I：

10.1364/AO.53.001406

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In contrast to conventional x-ray food inspection systems that have difficulty in detecting low-density materials, a terahertz imaging system can even identify insects and plastics embedded in a food matrix. A reflection-mode continuous-wave terahertz imaging system was therefore developed for application to food quality inspection, which requires fast, compact, and low-cost detection. High-speed operation of the terahertz imaging system was achieved through the use of a beam-steering tool. A reasonable compromise between the spatial resolution and the scan length of an aspheric f-theta scanning lens could be achieved by optimizing the lens parameters. (C) 2014 Optical Society of America

引用

页码：1406 / 1412

页数：7

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