Title :
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
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;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2013 IEEE International
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4673-4621-4
DOI :
10.1109/I2MTC.2013.6555681
