Paper Info
Title
Ad5933-Based Electrical Bioimpedance Spectrometer. Towards Textile-Enabled Applications
Abstract
Advances on System-On-Chip and Textile technology allows the development of Textile-enabled measurement instrumentation. Textile Electrodes (Textrodes) have been proven reliable for performing Electrical Bioimpedance Spectroscopy (EBIS) measurements, and the availability of a integrated circuit impedance spectrometer, the AD5933, has allowed the implementation of small size EBIS spectrometers.In this work an AD5933-based spectrometer has been implemented, and its performance on 2R1C circuits and for tetrapolar total right side EBIS measurements has been compared against the commercially available spectrometer SFB7. The study has been focused on the working upper frequency range and the estimation of the Cole parameters required for assessment of body fluid distribution: R-0 and R-infinity. The results indicate that AD5933-based spectrometer implemented in this work can perform accurate impedance measurements well above the upper limits recommended in the datasheet. The AD5933-EBIS presents a good performance compared with the SFB7 on the 2R1C circuit and the total right side measurements, showing a smaller error in the resistance spectrum and small deviation error in the reactance when measuring over 270 kHz. The comparison on the Cole parameters estimation obtained with the SFB7 and the AD5933-based spectrometer exhibit a difference below 1% for the estimation of R-0 and R-infinity. Consequently the overall measurement performance shown by the implemented AD5933-based spectrometer suggests its feasible use for EBIS measurements using dry Textrodes. This is of special relevance for the proliferation of EBI-based personalized health monitoring systems for patients that require to monitor the distribution of body fluids, like in dialysis.
Year
DOI
Venue
2011
10.1109/IEMBS.2011.6090891
2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)
Keywords
Field
DocType
estimation,parameter estimation,spectrum,impedance,system on chip,immune system,electrical resistance,integrated circuit,textiles,health care,impedance measurement,patient monitoring
Reactance,Remote patient monitoring,Computer science,Spectrometer,Electrical impedance,Electronic engineering,Electronic circuit,Integrated circuit,Datasheet,Instrumentation
Conference
Volume
ISSN
Citations 
2011
1557-170X
7
PageRank 
References 
Authors
1.36
0
3
Name
Order
Citations
PageRank
J Ferreira171.36
Fernando Seoane23310.13
Kaj Lindecrantz3369.52