基于曲面拟合的油液含水率传感器温度补偿方法研究  

Research on Temperature Compensation Method of Oil Water Content Sensor Based on Surface Fitting

作　　者：庞冰静 姜奕 张辉[2] 冯伟 PANG Bingjing;JIANG Yi;ZHANG Hui;FENG Wei(Guangyan Testing(Guangzhou)Co.,Ltd.,Guangzhou Guangdong 510000,China;China Petroleum and Chemical Corporation Guangzhou Branch,Guangzhou Guangdong 510725,China;Institute of EquipmentCondition Detection,Guangzhou Mechanical Engineering Research Institute,Guangzhou Guangdong 510700,China)

机构地区：[1]广研检测(广州)有限公司,广东广州510000 [2]中国石油化工股份有限公司广州分公司,广东广州510725 [3]广州机械科学研究院有限公司设备状态检测研究所,广东广州510700

出　　处：《润滑与密封》2024年第10期180-185,共6页Lubrication Engineering

基　　金：广东省工业摩擦学企业重点实验室项目(2023B1212070025);中国华能集团有限公司总部科技项目(17400080)。

摘　　要：为补偿温度对油液含水率传感器测量精度的影响,通过测量不同温度下润滑油品、电容探头以及水的介电常数数据,建立温度、电容、含水率之间的关系,采用曲面拟合的二元回归分析法建立油液含水率传感器温度补偿模型。试验结果表明,补偿前温度变化导致含水率最大偏差达6.5%以上,补偿后的检测数据偏差不大于0.15%,表明建立的温度补偿模型能有效提高油液含水率传感器测量精度。To compensate for the effect of temperature on the measurement accuracy of oil content content sensors,the relationship between temperature,capacitance and water content was established by measuring the dielectric constant data of lubricating oil,capacitance probes,and water at different temperatures.A temperature compensation model for oil water content sensors was established using a surface fitting binary regression analysis method.The results shows that the maximum deviation of water content caused by temperature changes before compensation is more than 6.5%,while the deviation of water content is less than 0.15%after compensation,indicating that the established temperature compensation model can effectively improve the measurement accuracy of oil water content sensor.

关 键 词：油液含水率传感器 电容检测 温度补偿 曲面拟合 二元回归分析 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TH117.22[自动化与计算机技术—控制科学与工程]