传感技术学报Issue(8)：1169-1175,7.DOI:10.3969/j.issn.1004-1699.2015.08.012
超声波热量表流量计量中温度补偿算法研究
Research on Temperature Compensation Algorithm in Ultrasonic Heat Meter Flow Measurement
摘要
Abstract
When using transit-time ultrasonic heat meter for the flow measurement,there is a nonlinear problem af⁃fected by temperature. In order to solve it,this paper proposed two kinds of temperature compensation algorithms re⁃spectively based on curve fitting algorithm and BP neural network. These two algorithms compensated flow measure⁃ment by establishing mapping relationship between temperature and flow. After modeling and simulation analysis , BP neural network compensation algorithm showed better ability of data integration and prediction. Spot test proved that BP neural network compensation algorithm had superior correction effect than the existing look-up table correc⁃tion algorithm and curve fitting compensation algorithm. Flow measurement error was limited within ± 2.2%and the maximum absolute error variance was 0.68 after BP neural network compensating. BP neural network compensation algorithm had great value of application with significant compensation effect.关键词
超声波热量表/BP神经网络/曲面拟合/温度补偿Key words
ultrasonic heat meter/BP neural network/curve fitting/temperature compensation分类
通用工业技术引用本文复制引用
崔晓志,王翥..超声波热量表流量计量中温度补偿算法研究[J].传感技术学报,2015,(8):1169-1175,7.基金项目
山东省科技发展计划项目（2010GGX10132）；山东省科技发展计划项目（2012GGX10110）；山东省科技发展计划项目 （）
