Method and apparatus for the recognition of gas bubbles in a line filled with liquid, in particular a flexible tubular line or a container

摘要

A process and device (1) are disclosed to detect gas bubbles in flexible ducts (2) filled with liquid. Emitters/receivers (3, 4) are arranged on both sides of the duct (2) and emit individual pulses having a particular height and shape which are awaited within a particular time as reception pulses having a particular height and shape by the corresponding receivers (11, 12).