火药吸收药中硝化棉含量快速检测方法  

A Rapid Detection Method of the NC Content in Gunpowder Intermediate

作　　者：尹作柱 邓国栋[1] 朱陈森 汪庆华[1] 

机构地区：[1]南京理工大学国家特种超细粉体工程技术研究中心,江苏南京210094

出　　处：《火炸药学报》2014年第6期79-82,共4页Chinese Journal of Explosives & Propellants

基　　金：国防火炸药科研专项项目

摘　　要：为了快速检测火药吸收药中硝化棉的含量,采用光纤探头采集吸收药混合液体系的近红外光谱图,通过分析纯NC和吸收药混合体系的光谱图特性,选择5 965-6 340cm^-1和7 665-9 193cm^-1为建模区域,用偏最小二乘法对NC组分建立了定量校正模型。结果表明,模型的决定系数R2为0.988 1,预测根方差RMSEP为0.223 8,预测集样本的预测平均相对误差为1.23%,检测时间小于20s,能够满足火药连续自动化生产的需要。For rapid detection of the nitrocellulose（NC）content in gunpowder intermediate,the near-infrared spectrograms of intermediate mixture system were collected by an optical fiber probe.The quantitative calibration model of component NC was established by Partial Least Squares（PLS）method through analyzing the spectral characteristics of pure NC and gunpowder intermediate,selecting 5 960-6 340cm-1 and 7 665-9 193cm-1 as modeling spectral region.The results show that the determination coefficient（R2）of the model is 0.988 1and rootmean-square error of prediction（RMSEP）is 0.2238,the predicted average relative error of the prediction set samples is 1.23% and the detection time is less than 20 seconds,which can meet the need for continuous and automatic production of gunpowder.

关 键 词：分析化学 硝化棉 近红外光谱 偏最小二乘法 火药吸收药 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]