System and method for measuring electrical characteristic of medical fluid

A circuit for measuring the conductivity of a medical fluid, the circuit comprising: a data collection unit through which a medical fluid is configured to flow; an input voltage source providing an input voltage to the data collection unit; a voltage measurement unit configured to be able to measure an input voltage and an output voltage of the data collection unit; and a switch in communication with the voltage measurement unit, the switch is configured to be switchable between a first state in which the voltage measurement unit is configured to be capable of measuring an input voltage of the data collection unit and a second state in which the voltage measurement unit is configured to be capable of measuring an output voltage of the data collection unit. 一种用于测量医用流体的电导率的电路，所述电路包括：数据收集单元，医用流体被配置成能够流过所述数据收集单元；向所述数据收集单元提供输入电压的输入电压源；被配置成能够测量所述数据收集单元的输入电压和输出电压的电压测量单元；以及与所述电压测量单元通信的开关，所述开关被配置成能够在所述电压测量单元被配置成能够测量所述数据收集单元的输入电压的第一状态与所述电压测量单元被配置成能够测量所述数据收集单元的输出电压的第二状态之间进行切换。