Drop sensing apparatus

摘要: Control apparatus for a drop-feed intravenous system includes an enclosure having thermally responsive probe sensor on which succesion of liquid drops impinge. The is insulated electrically from the drop stream but coupled to generate pulses at rate corresponding periodicity falling drops. These are compared with adjustable reference pulse and any differential detected used regulate flow thus adjust rate. Aural visual alarm systems respond out-of-limit conditions by monitoring system.