DISPOSITIF DE CONTROLE DE L'ECOULEMENT D'UN LIQUIDE DANS UNE CONDUITE TUBULAIRE ET NOTAMMENT DANS UNE POMPE PERISTALTIQUE

摘要

A device for sensing gas bubbles in a liquid flowing through a duct, particularly the outlet duct of a peristaltic pump, including two piezoelectric components (16, 18) shaped and excited (electrodes 20, 22, 24, 26) so that they vibrate axially. One of the components is a transmitter and the other is a receiver.