Design of a Bioelectrical Impedance Spectrometer Based on AD5933

Abstract:

This paper designed a bioelectrical impedance spectroscopy (BIS) measurement system based on the integrated impedance converter AD5933. The working principle of the AD5933 was briefly introduced, and a bipolar BIS measurement device was designed. The AD5933 can be controlled by MCU STC89LE516AD through an I2C bus. The software of the BIS device was written in C51 language and provides a friendly human-machine interface. Preliminary experiment showed that the impedance measurement error at different frequencies is less than 3% and found that the measurement accuracy is relatively high for larger resistor.

• Periodical: Applied Mechanics and Materials (Volumes 239-240)
• Pages: 392-396
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.239-240.392
• Online since: December 2012
• Authors: Ke Ning Wang, Heng Zhao, Wei Wang
• Keywords: AD5933, Bioelectrical Impedance Spectroscopy, Measurement System, Pork Quality

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