针对能源、化工等工业过程中液液两相流流场参数在线测试问题，开展基于超声多敏感效应信息融合的两相流截面相分布与流速分布参数测试方法研究。采用两相流场与声场耦合仿真方法，分析弱声阻抗比、非均匀分布两相流体的离散相尺度、速度及其分布对超声衰减、时延以及多普勒等效应的调制特性，研究超声多敏感效应信息解耦方法并建立双分布参数联合反演描述模型；开展超声探头阵列与多模态测试空间优化研究，全面获取超声多敏感效应多角度投影数据，提取两相流流场分布信息；构建高性能测试系统，实现多效应数据在线采集与解调；发展两相流相分布与流速分布联合反演方法，获得对两相流流场的完整描述，探索两相流场多参数耦合动态特性。建立并获得一套能全面、实时、准确地获取两相流相分布与速度分布的测试系统与方法，为多相流研究与工程应用提供无扰动、无辐射的在线检测工具。

Aiming at the flow field measurement of the liquid-liquid two-phase flow in energy and chemical engineering industries, this project studies the multi-mode ultrasonic data fusion method to simultaneously reconstruct the phase distribution and velocity distribution of two-phase flow. Based on the coupling simulation of two-phase flow and ultrasound propagation, the modulating effect of liquid-liquid two-phase flow field to the attenuation, time-of-flight and Doppler Effect of the ultrasound will be analyzed, then the multi-mode information will be decoupled based on the analysis, which facilitates the establishment of dual-parameter distribution reconstruction. A sensing volume will be created and optimized to collect comprehensive data of multi-mode ultrasound, and a high-performance testing system will be built to acquire the online measurement data and demodulate the multi-mode information. Explore the correlation between phase distribution and velocity distribution to develop a novel reconstruction method that simultaneously reconstructs the phase distribution and the velocity distribution. A sensing system and dedicated methods will be finalized to accurately monitor the two-phase flow statutes that comprehensively describe the two-phase flow field, which will provide a non-intrusive and radiation-free tool for online measurement of two-phase flow to the multiphase flow research and engineering.