Fluid flow diagnostics with ultrasound waves

摘要

The fact, that an ultrasonic wave depends on numerous properties of the medium in which it propagates, can be used to measure these properties. One example for this possibility, which was very successful in the last few years, is the measuremdent of flow gvelocities by means of ultrasound. This paper discusses several ways of drawing conclusing about the flow on the basis of ultrasound signals.