Development of an automated bioimpendance analyzer for monitoring the clinical condition and diagnosis of human body diseases

Abstract

Abstract Bioimpendance analysis allows to identify various pathologies, diagnose diseases in the early stages and determine the tactics of outpatient treatment for patients. It is most widely used in clinical practice. The article presents a structural diagram of the developed automated bioimpedance analyzer. The functional and metrological analysis of the hardware allowed to identify and systematize the causes of the methodological and subjective errors of the measurement results. To reduce the measurement error, a current source circuit, which allows the hardware to reduce leakage currents, is proposed. Bioimpedance measurement using an automated bioimpedance analyzer is performed at a frequency of 100 Hz to 2.5 MHz with a basic relative error of 0.1%.