一种新型全量程原油含水率测试仪的研制  

Development of a New Full-Range Water Content Tester of Crude Oil

作　　者：王雄 胡绪山 吴剑勇 梁军 王国财 许军 

机构地区：[1]荆州市明德科技有限公司,湖北 荆州

出　　处：《传感器技术与应用》2021年第4期216-225,共10页Journal of Sensor Technology and Application

摘　　要：通过对电容式原油含水率传感器的设计与分析、传感器信号驱动和调理电路的开发、含水率误差补偿及数据处理算法的研究,试制了一种新型全量程含水率测试仪。它的创新点是:利用有限元分析方法建立传感器电磁场仿真模型,对传感器电场和磁场参数进行分析,改变传感器尺寸和结构,实现性能优化;建立电容传感电路噪声传递模型,对各类噪声源进行分析,并采用误差抑制技术,提高电路信噪比,优化电路性能;研究原油含水率数据高精度标定算法,并针对现场监测需求,将标定算法内嵌入单片机系统,实现远端实时标定。Through the design and analysis ofcapacitive crude oil water content sensor, the development of sensor signal drive and conditioning circuit,water content error compensation and data processing algorithm research,a new full range water content tester was trial-produced. Its innovative pointsare: using the finite element analysis method to establish a sensorelectromagnetic field simulation model, analyze the sensor’s electric and magneticfield parameters, change the sensor’s size and structure and achieveperformance optimization;establish a noise transfer model of capacitor sensingcircuit, analyze various noise sources, and adopt error suppression techniquesto improve the signal-to-noise ratio of thecircuit and optimize the circuit performance;study the high-precisioncalibration algorithm of crude oil water content data, and embed thecalibration algorithm into the single-chip system to achieve remote real-timecalibration according to the needs of on-site monitoring.

关 键 词：原油 含水率 传感器 信噪比 全量程 测试仪 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]