A data acquisition system for induced current electrical impedance tomography / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 819-823, 2005.
Article
in Chinese
| WPRIM
| ID: wpr-238333
ABSTRACT
Induced current electrical impedance tomography (ICEIT) is a new branch of electrical impedance tomography (EIT). We have designed and set up a high accuracy ICEIT hardware system with 32 electrodes based on physical phantom, and we have brought forward a new method to reduce the additive electromotive force (EMF) in circuit of the electrode leads. By use of the technique of twisted pair wire, the additive EMF in the circuit of the electrode leads has been reduced to 10% of that before use and the precision of the system has been improved. The precision of the final results is better than 0.5% after 1000 measurement data averaged. Applying the reconstructive algorithm, we have obtained preliminary images based on physical phantom.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Signal Processing, Computer-Assisted
/
Tomography
/
Electric Impedance
/
Electrodes
/
Equipment Design
/
Electromagnetic Phenomena
/
Amplifiers, Electronic
/
Methods
/
Models, Theoretical
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2005
Type:
Article
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