Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A novel approach for removing the hook effect artefact from Electrical Bioimpedance spectroscopy measurements
School of Engineering, University of Borås.
School of Engineering, University of Borås.ORCID iD: 0000-0002-6995-967X
Department of Theory of the Signals and Communications. (Applied Signal Processing)
2010 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Very often in Electrical Bioimpedance (EBI) spectroscopy measurements the presence of stray capacitances creates a measurement artefact commonly known as Hook Effect . Such an artefact creates a hook-alike deviation of the EBI data noticeable when representing the measurement on the impedance plane. Such Hook Effect is noticeable at high frequencies but it also causes a data deviation at lower measurement frequencies. In order to perform any accurate analysis of the EBI spectroscopy data, the influence of the Hook Effect must be removed. An established method to compensate the hook effect is the well known Td compensation , which consists on multiplying the obtained spectrum, Z meas (ω) by a complex exponential in the form of exp[jωTd]. Such a method cannot correct entirely the Hook Effect since the hook-alike deviation occurs a broad frequency range in both magnitude and phase of the measured impedance, and by using a scalar value for Td . First a scalar only modifies the phase of the measured impedance and second, a single value can truly corrects the Hook Effect only at a single frequency. In addition, the process to select a value for the scalar Td by an iterative process with the aim to obtain the best Cole fitting lacks solid scientific grounds. In this work the Td compensation method is revisited and a modified approach for correcting the Hook Effect including a novel method for selecting the correcting values is proposed. The initial validation results confirm that the proposed method entirely corrects the Hook Effect at all frequencies.

Place, publisher, year, edition, pages
IOP publishing , 2010. Vol. 224, no 1
Series
Journal of Physics: Conference Series, ISSN 1742-6588 ; 224
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-73062OAI: oai:DiVA.org:kth-73062DiVA: diva2:489528
Conference
International Conference in Electrical Bioimpedance
Note

QC 20120206

Available from: 2012-02-06 Created: 2012-02-01 Last updated: 2017-03-24Bibliographically approved

Open Access in DiVA

RUBU-ICEBI-2010(542 kB)284 downloads
File information
File name FULLTEXT01.pdfFile size 542 kBChecksum SHA-512
42c9a8cf4700f04f23dd0b24619586f2ad0b52373219afaf384764cb7d38b4ff7d24a879280d8a2d900fce4a11032127c396918c546b7b99aa8fb7aff83cc3a4
Type fulltextMimetype application/pdf

Other links

http://stacks.iop.org/1742-6596/224/i=1/a=012126

Search in DiVA

By author/editor
Buendia, RubenSeoane, Fernando
Medical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 284 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 52 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf