Research on flow calibration system of infusion pump detector based on active piston
Aims:To study a traceability method of infusion pump tester based on active piston and design the integrated piston control mechanical structure.Methods:Stable flow rate generated by the active piston and monitored and controlled by Siemens PLC1200 combined with LabVIEW platform.Results:The device is traceable under the flow rate of 5 mL/h,600 mL/h and 1 000 mL/h using the weighing method,and the stability of the flow rate of 5 mL/h and 1 000 mL/h is experimented.The experimental results show that the relative error between the instantaneous flow and the cumulative flow of the infusion pump tester calibrating device in the flow rate of(5～1 000)mL/h are less than 0.25％.The relative error of instantaneous flow and cumulative flow is within 0.25％.Conclusions:The measured value of the flow calibration control system for infusion pump tester is accurate and reliable,and the designed structure is compact,integrated and convenient to use.It meets the calibration requirements of infusion pump detector.
active pistonLabVIEWweighing methodcontrol systemsinfusion pump analyzermonitoring systems
万方数据
维普
