High-speed terahertz imaging toward food quality inspection
High-speed terahertz imaging toward food quality inspection
复制标题
DOI：
10.1364/ao.53.001406
复制
发表时间：
2014-03-01
期刊：
影响因子：
1.9
通讯作者：
Choi, Sung-Wook
中科院分区：
文献类型：
--
作者：
Ok, Gyeongsik;Park, Kisang;Choi, Sung-Wook
与难以检测低密度材料的传统X射线食品检测系统相比，太赫兹成像系统甚至可以识别嵌入食品基质中的昆虫和塑料。因此，反射模式的连续波太赫兹成像系统的开发应用于食品质量检测，这需要快速，紧凑，低成本的检测。太赫兹成像系统的高速操作是通过使用光束转向工具实现的。通过优化透镜的参数，可以在非球面f-theta扫描透镜的空间分辨率和扫描长度之间找到一个合理的折衷。(C)2014年美国光学学会
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