Author : Ruchita Pandey,Mukesh Kumar, A.K.Jaiswal and Rohini Saxena

Complex bioimpedance measurement is an important key which enables to characterize the state of tissues and organs. Body fat content, tissue ischemia, skin hydration are some different areas where it is widely used. As compared to conventional methods, new tetrapolar method has been investigated to calculate the bioimpedance based on magnitude ratio and phase difference detection technique. Low power consumption, low cost and its simpler design make it more popular and efficient technique than traditional bioimpedance measuring system.

Keywords: Bioimpedance, Imaginary value, Phase sensitive detector method, Real value, Tetrapolar