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.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2012年第6期838-841,共4页
Journal of Solid Rocket Technology
