METHOD AND DEVICES FOR MONITORING FLOW CIRCUITS

摘要

It is an object of the invention to provide a method and a device for monitoring the integrity of a flow circuit using a pressure measurement. The device comprises an input for a pressure signal, the pressure signal being indicative of fluid pressure in a receptacle, and a signal processor configured to process the pressure signal for detection of a beating signal formed by interference between pressure waves generated by a pulse generator associated with the receptacle and pressure waves generated by a pumping device (3). The signal processor (29) determines the integrity based on the presence or absence of the beating signal.