Use of the electromagnetic ultrasound transformation process in monitoring the filling level and formation of bubbles in enclosures containing a fluid

摘要

Procedure comprises the coupling of a transmitter to the external walls of containers or pipelines generating ultrasonic vibrations in these walls, which induce ultrasonic echo-signals differing in aplitude and/or phase in receiver(s) connected to the walls depending on whether the vessel/pipeline containa a fluid or fluid/gas bubble mixt. or a gaseous substance only. The echo-signals may be received by reflection from inner boundary walls or via another reflector after traversing the fluid in the vessel/pipeline.