Aiming at problem of complicated circuit and low integration of traditional impedance measurement instruments

an integrated impedance spectroscopy measurement system is designed and implemented based on FPGA and AD5933.AD5933 impedance measurement method

the FPGA system architecture and the I2C IP Core working mechanism are introduced in detail.The system measurement precision and signal-to-noise ratio are evaluated by experiments

and the system measurement precision is further verified by measuring the impedance of three elements model.The system has features of small size

low power consumption

high integration

strong anti-interference ability and its signal-to-noise ratio is above 70 dB.It is easy to realize the miniaturization of the impedance spectroscopy measurement system.