Development of a Stair-Step Multifrequency Synchronized Excitation Signal for Fast Bioimpedance Spectroscopy
Joint Authors
Sun, Qiang
Wen, He
Du, Fangling
Bian, He
Yang, Yuxiang
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-19
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Wideband excitation signal with finite prominent harmonic components is desirable for fast bioimpedance spectroscopy (BIS) measurements.
This work introduces a simple method to synthesize and realize a type of periodical stair-step multifrequency synchronized (MFS) signal.
The Fourier series analysis shows that the p-order MFS signal f(p,t) has constant 81.06% energy distributed equally on its p 2nth primary harmonics.
The synthesis principle is described firstly and then two examples of the 4-order and 5-order MFS signals, f(4,t) and f(5,t), are synthesized.
The method to implement the MFS waveform based on a field-programmable gate array (FPGA) and a digital to analog converter (DAC) is also presented.
Both the number and the frequencies of the expected primary harmonics can be adjusted as needed.
An impedance measurement experiment on a RC three-element equivalent model is performed, and results show acceptable precision, which validates the feasibility of the MFS excitation.
American Psychological Association (APA)
Yang, Yuxiang& Bian, He& Du, Fangling& Sun, Qiang& Wen, He. 2014. Development of a Stair-Step Multifrequency Synchronized Excitation Signal for Fast Bioimpedance Spectroscopy. BioMed Research International،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-449204
Modern Language Association (MLA)
Yang, Yuxiang…[et al.]. Development of a Stair-Step Multifrequency Synchronized Excitation Signal for Fast Bioimpedance Spectroscopy. BioMed Research International No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-449204
American Medical Association (AMA)
Yang, Yuxiang& Bian, He& Du, Fangling& Sun, Qiang& Wen, He. Development of a Stair-Step Multifrequency Synchronized Excitation Signal for Fast Bioimpedance Spectroscopy. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-449204
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449204