华南农业大学学报2024，Vol.45Issue(4)：618-623,6.DOI:10.7671/j.issn.1001-411X.202310002
基于ZEMAX的柚果内部品质光谱无损检测光路仿真与试验
Optical path simulation and experiment for spectral nondestructive detection of pomelo fruit internal quality based on ZEMAX
摘要
Abstract
[Objective]This study is aimed to address the issue that the spectral information collected in the non-destructive testing of pomelo fruit(Citrus maxima)is weak,and the detected internal quality of pomelo fruit is not accurate.[Method]The optical simulation of the optical path of spectral nondestructive testing was carried out by using ZEMAX software,and tested and verified by the physical device.In order to further verify the nondestructive detection effect of the optical path on the internal quality of pomelo fruit,the spectral data of 132 pomelo fruits in 400-1 100 nm band were collected,and their soluble solid contents were determined physically and chemically for training modeling and testing verification.[Result]The optimal parameters of the optical path were as following:The number of lamp beads was 7,the distance between the fruit and the light source was 2 cm,and the distance between the detector and the fruit was 0.5 cm.Through Savitzky-Golay(SG)smoothing and standard normal variate(SNV)preprocessing,competitive adaptive reweighted sampling(CARS)feature selection,a partial least squares regression(PLSR)prediction model was established.The R2 and RMSE of the training set were 0.81 and 0.85,and those of the test set were 0.81 and 0.89,respectively.[Conclusion]The optical path parameters of pomelo fruit obtained in this study are applicable for non-destructive detection of pomelo fruit internal quality,yielding satisfactory detection results.The results provide a reference for the internal non-destructive testing of other large fruits.关键词
柚果/ZEMAX/光路优化/光学仿真/无损检测/建模识别Key words
Pomelo fruit/ZEMAX/Optical path optimization/Optical simulation/Nondestructive detection/Modeling and identification分类
农业科技引用本文复制引用
陈鑫,徐赛,陆华忠,梁鑫..基于ZEMAX的柚果内部品质光谱无损检测光路仿真与试验[J].华南农业大学学报,2024,45(4):618-623,6.基金项目
广东省乡村振兴战略专项(2023TS-1-2) （2023TS-1-2）
国家重点研发战略专项(2022YFD2002203) （2022YFD2002203）
国家自然科学基金(31901404) （31901404）
广东省农业科学院金颖人才培养计划项目(R2020PY-JJX020) （R2020PY-JJX020）
广东省农业科学院新兴学科团队建设项目(202134T) （202134T）
广州市青年托举人才项目 （）
