能源工程2024，Vol.44Issue(2)：67-76,10.DOI:10.16189/j.nygc.2024.02.011
电容层析成像技术应用于低温流体反演成像的研究现状
State of the art of electrical capacitance tomography applied to cryogenic fluid inversion imaging
吕海舟 1金鑫 2吴昀 1叶蕴琦 2李想 3郁洋3
作者信息
- 1. 浙江能源天然气集团有限公司,浙江 杭州 310051
- 2. 浙江浙能技术研究院有限公司,浙江 杭州 311100
- 3. 浙江省白马湖实验室有限公司,浙江 杭州 310002
- 折叠
摘要
Abstract
The high precision real-time measurement of the residual amount and spatial distribution of cryogenic propellant in storage tanks at different gravity stages has become one of the key technologies in space exploration and transport.The Electrical Capacitance Tomography(ECT)can reconstruct image of the liquid phase distribution in the tank in a non-contact,real-time and accurate way.However,compared with room temperature fluid,the dielectric constant ratio of liquid to gas of cryogenic fluid is more than one order of magnitude smaller.The dielectric constant is more sensitive to pressure and temperature.The equation of ECT inverse problem is very ill conditioned.The noise of capacitance measurement is large and the resolution requirement is higher.The traditional inversion algorithms based on sensitive field are difficult to meet the requirements of real-time and accurate inversion.Therefore,ECT-based cryogenic fluid inversion imaging is even more technically challenging than a room-temperature fluid,like water-air or oil-air.This paper comprehensively reviews the research progress of the algorithm and system of cryogenic fluid ECT inversion imaging at home and abroad,which is helpful for the relevant researchers to comprehensively understand the research status and development direction.关键词
电容层析成像/低温流体/反演成像/研究进展Key words
ECT/Cryogenic fluid/Inversion imaging/Research progress分类
数理科学引用本文复制引用
吕海舟,金鑫,吴昀,叶蕴琦,李想,郁洋..电容层析成像技术应用于低温流体反演成像的研究现状[J].能源工程,2024,44(2):67-76,10.
