Development of a prototype micro-EIT system using three sets of 15×8 array electrodes

Qin Liu, Hun Wi, Tong In Oh, Eung Je Woo, Jin Keun Seo

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

We developed a new microscopic electrical impedance tomography (micro-EIT) system to visualize admittivity distributions within a miniature hexahedral container, where we place small biological samples with a background solution or gel. Each of two facing sides (left and right) of the container is fully covered by a solid metal electrode. We inject current between them, thereby producing a uniform parallel current flow along the longitudinal direction inside the container. Each of three sides at the bottom, front and back is equipped with a 15×8 array of voltage-sensing electrodes. Switching modules are located underneath the container so that we can measure voltage between any neighbouring pair of electrodes. Three switching modules are connected to a 16-channel multi-frequency EIT system to collect induced voltage data from the three sets of 15×8 array electrodes subject to the single fixed current injection. Voltage data set from 360 voltage-sensing electrodes on three sides are utilized to produce cross-sectional images of the admittivity distribution. We describe the design and construction of the new micro-EIT system. Our future work should include development of a customized image reconstruction algorithm for the micro-EIT system and experimental validation.

Original languageEnglish
Article number012161
JournalJournal of Physics: Conference Series
Volume224
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1
Event14th International Conference on Electrical Bioimpedance, Held in Conjunction with the 11th Conference on Biomedical Applications of EIT, ICEBI and EIT 2010 - Gainesville, FL, United States
Duration: 2010 Apr 42010 Apr 8

Fingerprint

electrical impedance
containers
tomography
prototypes
electrodes
electric potential
modules
image reconstruction
gels
injection
metals

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{f8f47dae5f6b4ce4908630330c62cb68,
title = "Development of a prototype micro-EIT system using three sets of 15×8 array electrodes",
abstract = "We developed a new microscopic electrical impedance tomography (micro-EIT) system to visualize admittivity distributions within a miniature hexahedral container, where we place small biological samples with a background solution or gel. Each of two facing sides (left and right) of the container is fully covered by a solid metal electrode. We inject current between them, thereby producing a uniform parallel current flow along the longitudinal direction inside the container. Each of three sides at the bottom, front and back is equipped with a 15×8 array of voltage-sensing electrodes. Switching modules are located underneath the container so that we can measure voltage between any neighbouring pair of electrodes. Three switching modules are connected to a 16-channel multi-frequency EIT system to collect induced voltage data from the three sets of 15×8 array electrodes subject to the single fixed current injection. Voltage data set from 360 voltage-sensing electrodes on three sides are utilized to produce cross-sectional images of the admittivity distribution. We describe the design and construction of the new micro-EIT system. Our future work should include development of a customized image reconstruction algorithm for the micro-EIT system and experimental validation.",
author = "Qin Liu and Hun Wi and Oh, {Tong In} and Woo, {Eung Je} and Seo, {Jin Keun}",
year = "2010",
month = "1",
day = "1",
doi = "10.1088/1742-6596/224/1/012161",
language = "English",
volume = "224",
journal = "Journal of Physics: Conference Series",
issn = "1742-6588",
publisher = "IOP Publishing Ltd.",
number = "1",

}

Development of a prototype micro-EIT system using three sets of 15×8 array electrodes. / Liu, Qin; Wi, Hun; Oh, Tong In; Woo, Eung Je; Seo, Jin Keun.

In: Journal of Physics: Conference Series, Vol. 224, No. 1, 012161, 01.01.2010.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Development of a prototype micro-EIT system using three sets of 15×8 array electrodes

AU - Liu, Qin

AU - Wi, Hun

AU - Oh, Tong In

AU - Woo, Eung Je

AU - Seo, Jin Keun

PY - 2010/1/1

Y1 - 2010/1/1

N2 - We developed a new microscopic electrical impedance tomography (micro-EIT) system to visualize admittivity distributions within a miniature hexahedral container, where we place small biological samples with a background solution or gel. Each of two facing sides (left and right) of the container is fully covered by a solid metal electrode. We inject current between them, thereby producing a uniform parallel current flow along the longitudinal direction inside the container. Each of three sides at the bottom, front and back is equipped with a 15×8 array of voltage-sensing electrodes. Switching modules are located underneath the container so that we can measure voltage between any neighbouring pair of electrodes. Three switching modules are connected to a 16-channel multi-frequency EIT system to collect induced voltage data from the three sets of 15×8 array electrodes subject to the single fixed current injection. Voltage data set from 360 voltage-sensing electrodes on three sides are utilized to produce cross-sectional images of the admittivity distribution. We describe the design and construction of the new micro-EIT system. Our future work should include development of a customized image reconstruction algorithm for the micro-EIT system and experimental validation.

AB - We developed a new microscopic electrical impedance tomography (micro-EIT) system to visualize admittivity distributions within a miniature hexahedral container, where we place small biological samples with a background solution or gel. Each of two facing sides (left and right) of the container is fully covered by a solid metal electrode. We inject current between them, thereby producing a uniform parallel current flow along the longitudinal direction inside the container. Each of three sides at the bottom, front and back is equipped with a 15×8 array of voltage-sensing electrodes. Switching modules are located underneath the container so that we can measure voltage between any neighbouring pair of electrodes. Three switching modules are connected to a 16-channel multi-frequency EIT system to collect induced voltage data from the three sets of 15×8 array electrodes subject to the single fixed current injection. Voltage data set from 360 voltage-sensing electrodes on three sides are utilized to produce cross-sectional images of the admittivity distribution. We describe the design and construction of the new micro-EIT system. Our future work should include development of a customized image reconstruction algorithm for the micro-EIT system and experimental validation.

UR - http://www.scopus.com/inward/record.url?scp=77954669148&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954669148&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/224/1/012161

DO - 10.1088/1742-6596/224/1/012161

M3 - Conference article

AN - SCOPUS:77954669148

VL - 224

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012161

ER -