基于卡曼滤波的矿浆浓度计设计  

Design of Slurry Concentration Meter Based on Kalman Filtering

作　　者：肖晶峰 刘石梅[1] 刘洋[1] 肖盛旺 李然 罗国奇 张胜广[1] XIAO Jingfeng;LIU Shimei;LIU Yang;XIAO Shengwang;LI Ran;LUO Guoqi;ZHANG Shengguang(Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2024年第2期34-37,42,共5页Mining and Metallurgical Engineering

基　　金：湖南省科技创新计划(2022RC1053)。

摘　　要：设计了一种基于卡曼滤波的γ射线浓度计。通过分析射线浓度计的测量原理,建立了射线强度与矿浆浓度的关系式;利用卡曼滤波对射线强度进行最优估计,以抑制测量结果的扰动;最后通过最小二乘法分段拟合计算对应的浓度。结果表明,该浓度计测量及时、准确,最大误差0.328个百分点,均方根误差0.194个百分点,测量精度得到有效提高。A Gamma⁃ray concentration meter based on Kalman filtering was designed,and the relationship between ray intensity attenuation and slurry concentration was established by analyzing the measurement principle of ray concentration meter.To suppress the disturbance of the results,an optimal estimation of ray intensity was actualized by using Kalman filtering.The corresponding concentration is segmentally simulated and calculated by using the least square method.The results show that the concentration meter can provide timely and accurate measurement,with a maximum error of 0.328 percentage points and a root mean square error of 0.194 percentage points,presenting effective improvement in accuracy.

关 键 词：矿浆浓度 浓度检测 射线浓度计 卡曼滤波 最小二乘法 

分 类 号：TD45[矿业工程—矿山机电]