Design and uncertainty analysis of a bioimpedance measurement channel

Author

Schuck, A. ; Balbinot, A. ; Wolff Porto, Rodrigo

Author_Institution

Electr. Eng. Dept., UFRGS, Porto Alegre, Brazil

fYear

2013

fDate

6-9 May 2013

Firstpage

1585

Lastpage

1589

Abstract

This work presents the design and uncertainty analysis of a bioimpedance measurement channel for use in electrical impedance tomography (EIT). A bioimpedance measurement channel was designed. Then the random error of each stage of the project as well as the entire channel was measured. The loads used were resistive, in the range of 100 Ω -1K Ω. The frequencies of excitation used were 100 kHz and 300 kHz. The errors were calculated through 200 samples of each measure, for each load and frequency. The final uncertainty in the measurement of magnitude and phase was ±0.008% (±3σ) and ±0.05° (±3σ), respectively.

Keywords

bioelectric phenomena; biomedical electronics; design; electric impedance imaging; error analysis; load (electric); tomography; EIT; bioimpedance measurement channel; design analysis; electrical impedance tomography; entire channel random error measurement; excitation frequency; final magnitude measurement uncertainty; final phase measurement uncertainty; frequency 100 kHz to 300 kHz; project stage random error measurement; resistance 100 ohm to 1 kohm; resistive load; uncertainty analysis; Bioimpedance; Current measurement; Impedance; Impedance measurement; Instruments; Measurement uncertainty; Uncertainty; Bioimpedance measurement; Electrical Impedance Tomography; Uncertainty Analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International

Conference_Location

Minneapolis, MN

ISSN

1091-5281

Print_ISBN

978-1-4673-4621-4

Type

conf

DOI

10.1109/I2MTC.2013.6555681

Filename

6555681