微波法原油含水率测量  

Measurement of Water Content in Crude Oil by Microwave

作　　者：于洋[1] 孙香[1] 

机构地区：[1]沈阳工业大学信息科学与工程学院,辽宁沈阳110870

出　　处：《仪表技术与传感器》2011年第12期93-95,共3页Instrument Technique and Sensor

基　　金：辽宁省教育厅创新团队项目资助(2008T145)

摘　　要：原油含水量是油田开采的一个重要指标,不同介电常数的油水混合物对微波信号的吸收率是不同的,基于这个原理设计了一种具有自动定标功能的微波原油含水率测量系统。该系统改进了传统的微波透射法单通道测量方式,采用测量通道和参考通道的双通道测量方式,利用环形器和PIN调制开关的组合,替代魔T和功分器的使用,降低了系统成本,并且有效地克服了信号源的不稳定性及空间干扰对系统的影响,提高了测量的精确性。该系统实现了0～40%中高含水率油品的精确测量,实验证明该装置具有工作稳定性好,测量精确度高,可在线测量等优点。Water content in crude oil is an important parameter in oil field exploitation.An auto-calibration water content measurement system was designed based on the different absorption rate of oil-water mixture with varies dielectric constant.Double channels were adapted with measure channel and reference channel using circulator and modulator switch to instead of magic T and splitter,so the system cost was lower and the influence caused by unstable signal power and space disturb was reduced greatly and measurement accuracy was improved.The precise measurement of 0~40% water content is achieved in this system.According to a lot of experiments,this system can realize stable work with precise measurement and on-line measurement.

关 键 词：微波 调制开关 数字衰减器 自动定标 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]