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《Journal of Central South University(Science and Technology)》 2010-04
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A validity test method of measurement data about liquefied petroleum gas flux in copper refining process

E Jia-qiang,LI Juan,DENG Yuan-wang,PENG Yu,LI Guang-ming,JIA Guo-hai(College of Mechanical and Vehicle Engineering,Hunan University,Changsha 410082,China)  
Based on the effects such as the imprecision of sensors,environmental noise and human-caused disturbance in measurement system about liquefied petroleum gas flux in copper refining process,a validity test method of measurement data about liquefied petroleum gas flux in copper refining process was presented by using fuzzy comprehensive evaluation and chaotic optimization neural network algorithm with the ability of getting weight automatically,the errors from signal jump and the longtime errors were recognized and the errors of small rate were eliminated using subject function selection and adaptive adjustment of comprehensive evaluation.The results show that maximum relative error can be less than 2.75% and the relative error is less than 2.0% compared with that not being tested,which can solve the problems of low precision caused by the outliers from multi-sensor information fusion data in complicated environment.
【Fund】: 湖南省自然科学基金资助项目(06JJ50103)
【CateGory Index】: TF811
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