High-precision double-channel bioimpedance measuring instrument

The utility model discloses a high-precision double-channel bioimpedance measuring instrument which comprises a processor, an LCD unit, a keyboard input unit and a USB communication unit and is characterized by further comprising a temperature detection unit and two impedance measuring channels; each impedance measuring channel is provided with a scanning signal generation unit, a scanning signal regulation unit, an impedance measuring unit, an amplitude-phase measuring unit and an amplitude measuring unit. The instrument has the obvious effects that the processor is used as a main control chip, double-channel measurement of bioimpedance is realized through a high-performance scanning signal generation module and a high-performance signal extraction module, and the frequency of scanning signals can be regulated within the range of 0 to 10 MHz; in addition, except for the characteristics of high accuracy of regulation, high response speed, automation in frequency sweep measurement, portability and the like, the instrument further has the two outstanding characteristics of realizing double-channel bioimpedance measurement and realizing real time temperature measurement.