Evaluation of Results from Ultrasound Process Tomography of Multiphase Media

Sascha Langener, Thomas Musch, Michael Vogt, Helmut Ermert

In: 2015 7th International Symposium on Process Tomography (ISPT7), 2015. Dresden, Germany.


The measurement of volume fractions of different components in multiphase flows is of great interest in many industrial applications. Ultrasound process tomography is well-suited for the differentiation of gaseous and liquid phases. Simulations and measurements were conducted for a measurement concept using a ring of 32 ultrasound transducers on a measurement pipe. A reflection-mode reconstruction technique was used to obtain the system’s point spread function and examine the performance on inhomogeneous configurations of water containing multiple gaseous objects. Furthermore, the possibility of reducing the number of transducers used as transmitters and its effect on the quality of the reconstructed images were investigated.