摘要
联合Solartron ISA公司,我们已经开发了现场射频微波传感器系统。在100MHz-600MHz工作的这种传感器传输低功率(<20mW),利用一个Marconi 6200测试设备可检测出谐振频率。通过从获取RF频谱的多重谐振分析中可以检测管道中石油,水和气体。这种传感器是非侵入的,并且通过三种状态所具有的不同的介电常数而工作的。利用高频结构模拟器(HFCC),可以在管道里面模拟所要求的电磁场来。已建造好的直径为102mm(4 inch)一个管道的工业传感器是基于一个实验室的原形,并且在UK国家电子实验室(NEL)内,使用成层的和环状的流动方式在测试回路中进行了很多实验。在本文中将阐述在实验室和NEL中研究的结果。
We have developed, in conjunction with Solartron ISA, an on-line radio frequency （RF） microwave sensor system. This sensor transmits low power （〈20mW） in the range of 100MHz-600MHz and detects resonant frequencies using a Marconi 6200 test set. The multiple resonances from each captured RF spectrum are analyzed to determine the oil, water and gas fractions in the pipeline. The sensor is non-invasive, and relies on the different dielectric constants of the three phases. The electromagnetic fields inside the pipeline have been modeled and simulated using High Frequency Structure Simulator （HFSS）. An industrial version of the sensor for a 102mm （4 inch） diameter pipe has been constructed, based upon a laboratory prototype, and trials have been conducted on the test loop at the National Engineering Laboratories （NEL） in the UK with stratified and annular tlow regimes. Laboratory and NEL results will be presented.
