FTIR Determination of Moisture in Aviation Lubricants with the Algorithms of GA and BP-ANN
摘 要
采用傅里叶变换红外光谱法测定了航空润滑油中的水分,通过遗传算法(GA)优化选取有效波数点,用误差反向传播神经网络(BP-ANN)进行水分预测计算。模型的预测相关系数为0.957,预测标准偏差为0.022。随机抽取某型航空润滑油样品进行预测并对预测结果进行配对t检验,结果表明:红外光谱定量分析结果与标准方法测定值没有显著性差异,模型可以用于该型在用航空润滑油水分含量现场快速检测。
Abstract
In fourier transform infrared spectrometric (FTIR) determination of content of moisture in aviation lubricants, the algorithm of genetic algorithms (GA) was applied to the select of a few points of significant wave and the algorithm of back propagation-artificial network (BP-ANN) was applied to presumptive calculation of moisture. Value of correlation coefficients of the model was achieved to 0.957, and the square errors of prediction (SEP) was 0.022. The proposed method was used in the forecast of a certain type of aviation lubricants on randomly selected, and the paired t-test was used in the test of predicted values. It was found that there was no significant difference between the standard method and IR quantitative analysis. The model can be used for the determination of moisture in aviation lubricants.
中图分类号 O657.3
所属栏目 试验与研究
基金项目 国防预研基金资助课题(9140A19050106JB1409)
收稿日期 2011/6/7
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联系人作者韩晓(493115795@qq.com)
备注韩晓(1987-),男,山东烟台人,硕士,工程师,研究方向为推进剂快速分析。
引用该论文: HAN Xiao,WANG Ju-xiang,LIU Jie,XU Guang. FTIR Determination of Moisture in Aviation Lubricants with the Algorithms of GA and BP-ANN[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(4): 388~391
韩晓,王菊香,刘洁,徐广. 遗传算法结合神经网络用于傅里叶变换红外光谱法测定航空润滑油中水分[J]. 理化检验-化学分册, 2012, 48(4): 388~391
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参考文献
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【2】WO Shi-pu. Instrument of fourier infrared spectrometry[M]. Beijing: Chemical Industry Press, 2005:5.
【3】宋兰琪,陈立波,张占纲.合成航空润滑油失效准确快速检测方法研究[J].材料工程, 2003(增刊):356-358.
【4】孙齐虎,田洪祥.基于小波变换和BP神经网络的润滑油水分测量研究[J].润滑油, 2008,23(2):46-50.
【5】邹小波,赵杰文.用遗传算法快速提取近红外光谱特征区域和特征波长[J].光学学报, 2007,27(7):1316-1321.
【6】LEARDI R. Application of genetic algorithm PLS for feature selection in spectral data sets[J]. J Chemometrics and Intelligent Laboratory Systems, 2000,14(5):643-655.
【7】ASTM E2412-04Standard practice for condition monitoring of used lubricants by trend analysis using FTIR spectrometry[S].
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