电子科技2012，Vol.25Issue(9)：6-8,12,4.
基于近红外光谱的梨果糖浓度无损检测系统
Nondestructive Testing System for Sugar Content of Pears Based on Near Infrared Spectroscopy
王伟明 1张文涛 1董大明 2熊显名1
作者信息
- 1. 桂林电子科技大学电子工程与自动化学院,广西桂林541004
- 2. 国家农业智能装备工程技术研究中心农业与自动化部,北京100097
- 折叠
摘要
Abstract
A nondestructive portable detection system for sugar content of pears based on near infrared spectrum is developed, and the relationship between the near-infrared spectrum and sugar contents of pears is established. A nondestructive testing device for sugar content is designed using the laser diode of 850 nm as the background and that of 905 nm as the characteristic source. The model for calibration is set up by the partial least squares （PLS） meth- od. The correlograms between the standard Brix value and predictive value of the calibration set and the prediction set are obtained which give good predictions of the sugar content of pears, with corresponding r values of 0. 991 9 and 0. 826 2, and standard errors of predictions of 0. 002 and 0. 008. It is proved that the device designed can be used for nondestructive testing of the sugar content of pears of the same variety.关键词
近红外光谱/漫反射/糖度/PLSKey words
near infrared/diffuse reflection/sugar content/PLS分类
信息技术与安全科学引用本文复制引用
王伟明,张文涛,董大明,熊显名..基于近红外光谱的梨果糖浓度无损检测系统[J].电子科技,2012,25(9):6-8,12,4.
