Detecting and Processing of Output Signals in Transfusion Speed Monitor Adapted to Numerous Kinds of Liquids

People have paid more attention to their own health in present era. And the control precision of liquid dropping speed has been highly requested in the transfusion process. This paper introduces the design of signal detecting and processing circuit in which MCU C8051F206 is embedded and the system establishment of transfusion speed monitor adapted to many kinds of liquids. It's suitable for dropping speed control of kinds of liquids with different conductivity. Not only dropping speed can be displayed during transfusion process, but the upper and lower limitation can also be adjusted. According to your adjustment it can give an alarm when the dropping speed oversteps the limitation. The frame of the hardware system is given in the paper, too. In the final part, the actual systematic detecting and processing effect has been tested and the test content proves the accuracy of this design.