摘要
为了减小粉尘浓度在线检测误差,分析光散射法和电荷感应法的基本原理,揭示两种方法的局限性;将光散射子单元和电荷感应子单元的结构和数据融合,研制并联自动切换的融合单元,提出一种粉尘浓度融合检测算法.实验发现:融合单元的检测误差≤11.3%,比光散射子单元小3.6%,比电荷感应子单元小3.5%;融合单元的平均标定分辨率为112.8,是光散射子单元的1.27倍,是电荷感应子单元的4.68倍;融合单元的标定线性度最好.表明融合技术克服了光散射法和电荷感应法的局限性,进一步减小了检测误差和提高了标定分辨率、线性度.
In order to reduce on-line detection error of dust concentration,the basic principles of light scattering method and charge induction method were analyzed,and the limitations of the two methods were revealed.The structure and data of the light scattering subunit and charge induction subunit were fused,and a parallel automatic switching fusion subunit was developed.A dust concentration fusion detection algorithm was proposed.The experimental results showed that the detection error of the fusion subunit was≤11.3%,3.6% smaller than that of the light scattering subunit,and 3.5% smaller than that of the charge induction subunit.The average calibration resolution of the fusion subunit was 112.8,1.27 times that of the light scattering subunit and 4.68 times that of the charge induction subunit.The calibration linearity of fusion subunit was the best.It was proved that the fusion technique overcame the limitation of light scattering method and charge induction method,further reduced the detection error and improved the calibration resolution and linearity.
作者
赵政
李德文
吴付祥
刘国庆
ZHAO Zheng;LI De-wen;WU Fu-xiang;LIU Guo-qing(School of Resources and Safety Engineering,Chongqing University,Chongqing 400044,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037,China;China Coal Research Institute,Beijing 100013,China)
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2021年第1期139-146,152,共9页
Journal of Northeastern University(Natural Science)
基金
国家重点研发计划项目(2017YFC0805200).
关键词
粉尘浓度
光散射法
电荷感应法
局限性
融合
dust concentration
light scattering method
charge induction method
limitation
fusion
