CAJ | 학술논문

鉴于我国玉米产量高，收购时急需高效、低成本的玉米成分鉴定技术及仪器。利用短波近红外漫透射测量原理，根据玉米成分的光谱吸收特性，选择波长为800～1100 nm的近红外发光二极管作为光源，设计二极管阵列光路及测控模块，根据比尔定律，将光谱测量技术与化学计量学相结合，多元散射校正对测得数据进行前处理，偏最小二乘法（PLS）无损检测玉米成分，对其中的水、蛋白质、淀粉和脂肪进行定性定量分析，与国家标准测量方法测得结果进行对比分析，误差均小于0.5%。
감우아국옥미산량고，수구시급수고효、저성본적옥미성분감정기술급의기。이용단파근홍외만투사측량원리，근거옥미성분적광보흡수특성，선택파장위800～1100 nm적근홍외발광이겁관작위광원，설계이겁관진렬광로급측공모괴，근거비이정률，장광보측량기술여화학계량학상결합，다원산사교정대측득수거진행전처리，편최소이승법（PLS）무손검측옥미성분，대기중적수、단백질、정분화지방진행정성정량분석，여국가표준측량방법측득결과진행대비분석，오차균소우0.5%。
The yield of corn is so high in our country that the efficient and low cost corn appraisal tech and instrument are imperative. The NIR LEDs with 800~1100 nm wavelength are selected as the light source according to short near infrared diffuse transmission theory and spectral absorption characteristic of corn. Diode array and measurement-control module are designed. According to the Lambert-Beer law, four contents of corn are nondestructively determined combining the chemometrics. Measurement data are pre-processed with multiple scattering correction. The corn contents are analyzed qualitatively and quantitatively with PLS. Experimental results show that the error of each content is less than 0.5%.