Impedance measurement is a fast and cheap method to characterize any matter. Unlike various complicated methods, bioimpedance measurement technique is simple, less time consuming and non-invasive method for various applications including medicine, biotechnology and food industry. However, despite of intensive research in this field of more than six decades, only a few applications have been established. This paper presents a review of the major steps taken towards the development of Bioelectrical Impedance Analysis technique as a future health care technology.

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Electrical Bio-impedance Multi-frequency Bioimpedance Differential Signal Processing Instrumentation Amplifier