The development of an ultrasonic reflection tomography system is descr
ibed. The system is intended for the imaging of two component flows (s
uch as gas/water) inside pipes of industrial processes. Data acquisiti
on is performed using a digital signal processor and a network of para
llel processors perform the image reconstruction. Real-time images are
obtained at rates of up to 55 frames per second using 36 non-intrusiv
e transducer elements in a 4 inch pipe.