农业工程学报2012，Vol.28Issue(10)：253-258,6.DOI:10.3969/j.issn.1002-6819.2012.10.040
棉纤维质量密度光学检测模型的优化
Optimization of optical measurement model for mass density of cotton fiber
摘要
Abstract
The establishment of the detectible model of the cotton fiber mass density plays an important role in detecting the cotton flow for the pipeline of the online measurement through the pneumatic transportation. In this paper, the basic law of the light absorption was managed to study the attenuation of the cotton fibers for the light of the different wavelength. The results showed that changes of breed, moisture and ambient temperature had no significant relationship with the test results, when the near-infrared of the wavelength of 940 nm was selected as a light source. Therefore the near-infrared of the wavelength of 940 nm was selected as the emitter and the mass density measurement system of the cotton fiber was built. The decay rate of the light intensity of the cotton fiber was measured, the corresponding region of the actual measurement of cotton fiber quality was combined and regression analysis was used to establish the detectible model of the cotton fiber mass density. The validation results of the model demonstrated that the average error of the measurement results reached 6.1%.This research lays a foundation for on line monitoring of cotton flow rate in cotton pipe and developing sensors of cotton flow rate.关键词
棉纤维/含水率/光学检测/质量密度/衰减率Key words
cotton fiber/ water content/ optical testing/ mass density/ attenuation rate分类
农业科技引用本文复制引用
安光辉,马蓉,芦帅,刘阳,林鑫洁..棉纤维质量密度光学检测模型的优化[J].农业工程学报,2012,28(10):253-258,6.基金项目
国家"863"项目子课题(2010AA101403) （2010AA101403）
