摘要
为了探讨太赫兹(THz)光谱无损检测猪肉品质的可行性,采用衰减全反射(ATR)模式采集猪脂肪、肌肉和皮肤3种新鲜组织的THz光谱,获取3种组织在0.2~2.0THz范围的折射率和消光系数。结果表明:在0.2~1.6THz低频段猪肉不同组织的THz光谱差异较明显,含水量是影响新鲜组织对THz波吸收的主要因素。利用不同组织在THz波段的光学特性差异,可以无损快速鉴别组织类型。通过建立同种猪肉组织的THz光谱与猪肉品质的关系模型,能够实现猪肉品质的无损检测。
To investigate the feasibility of testing pork quality by terahertz（THz）spectroscopy nondestructively,refractive indexes and extinction coefficients of fat,muscle and skin of porcine tissue were collected by attenuated total reflection（ATR）mode in the range of0.2-2.0 THz.The results showed that THz spectra of these tissues were different obviously in 0.2-1.6 THz.Water content was found to be a main factor affecting THz absorption of fresh tissues.The optical characteristic difference in THz band of different tissues could be utilized to identify tissue types rapidly and nondestructively.Moreover,it could be predicted that the pork quality could be tested nondestructively by establishing relationship model of THz spectrum and porcine tissue quality.
作者
齐亮
赵茂程
赵婕
唐于维一
QI Liang1,2, ZHAO Mao-cheng1,3, ZHAO Jie1,4, TANG Yu-wei-yi1(1. Mechanical and Electronic Engineering School, Nanjing Forestry University, Nanjing , Jiangsu 210037, China; 2. Center for Analysis and Testing, Nanjing Normal University, Nanjing, Jiangsu 210046, China; 3. Taizhou University, Taizhou , Jiangsu 225300, China; 4. School of Aeronautical Engineering, Nanjing Institute of Industrial Professional Technology, Nanjing, Jiangsu 210023, Chin)
出处
《食品与机械》
CSCD
北大核心
2018年第2期11-14,61,共5页
Food and Machinery
基金
江苏省高校自然科学基金项目(编号:15KJD550001)
江苏省高校研究生科研创新计划(编号:KYZZ_0249)
江苏省高校优势学科建设工程资助项目(编号:PAPD)
2016年度省级战略性新兴产业发展专项资金项目
南京市2015年度科技发展计划项目(编号:201505058)
关键词
太赫兹
衰减全反射
组织鉴别
无损检测
折射率
消光系数
terahertz
attenuated total reflection
porcine tissues discrimination
nondestructive detection
refractive index
extinction coefficient
