近红外在线检测硝胺推进剂主要固体组分含量  

Real-time detection of the main solid components concentration in RDX-CMDB with NIR spectral analysis

作　　者：邹权[1] 邓国栋[1] 郭效德[1] 姜炜[1] 宋丹[1] 李凤生[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,南京210094

出　　处：《固体火箭技术》2012年第6期838-841,共4页Journal of Solid Rocket Technology

摘　　要：研究了近红外方法对硝胺推进剂主要固体组分含量进行在线检测的可行性。参照吸收药制备过程的搅拌分散条件,配制黑索金、硝化棉和水的混合体系并用光纤探头直接采集近红外光谱,以偏最小二乘法分别对黑索金、硝化棉建立定量校正模型,模型相关系数R分别为0.997 1、0.989 5;预测标准偏差RMSEP分别为0.096 8、0.111 0。运用上述模型对单个样品进行检测,从光谱采集到得出结果耗时小于30 s。实验表明,近红外方法快速、准确,具备在线检测硝胺推进剂主要固体组分含量的可行性。This study focuses on the feasibility of real-time detecting the main solid components concentration of composite modified double base propellant containing RDX（RDX-CMDB）.A batch of liquid mixtures including RDX,NC and water were prepared at laboratory,which were scanned directly with a fiber-optical probe of FT-NIR spectrophotometer on condition of stirring constantly.Two quantitative calibration models were constructed based on partial least squares regression for RDX and NC.Their correlation coefficient（R） is 0.997 1 and 0.989 5,and root mean square error of predicted（RMSEP） is 0.096 8 and 0.111 0 respectively,which proves that the calibration models is accurate.It only took less than 30 seconds from scanning samples to obtaining result when calibration models have been generated.The results show that it is feasible to apply NIR analysis to on-line detection of the main solid constituents in CMDB.

关 键 词：硝胺推进剂 近红外 在线检测 黑索金 硝化棉 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]