Non-Invasive Ultrasonic Tomography : Liquid/Gas Flow Visualization

The work reported in this paper demonstrates image reconstruction techniques applied to an experimental vessel of liquid/gas flow using non-invasive Ultrasonic Tomography technique. The introduction is firstly described. Second, the Ultrasonic Tomography modelling is explained. Third, the measurement system is put forward. Fourth, the image reconstruction algorithms are briefly discussed and the results obtained are presented. Finally the discussions for the results are presented. Abstract—This paper presents the non-invasive ultrasonic tomography system for imaging liquid and gas flow. Transmission-mode approach has been used for sensing the liquid/gas two-phase flow, which is a kind of strongly inhomogeneous medium. The algorithms used to reconstruct the concentration profile for two-phase flow using fan-shaped beam scanning geometry were presented. Experiments showed that the performance of the system is acceptable. Results of the experiments using LBPA, HRA and HBRA were discussed