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Pregled bibliografske jedinice broj: 71609

Pulse measurement performance in differential resistivity image reconstruction


Kovačić, Dubravko; Šantić, Ante
Pulse measurement performance in differential resistivity image reconstruction // Biomedical Applications of EIT, Scientific Abstracts
London: UCL, 2001. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


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Naslov
Pulse measurement performance in differential resistivity image reconstruction

Autori
Kovačić, Dubravko ; Šantić, Ante

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Biomedical Applications of EIT, Scientific Abstracts / - London : UCL, 2001

Skup
3rd EPSRC Engineering Network on Electrical Impedance Tomography

Mjesto i datum
London, Velika Britanija, 4-6. 04. 2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
EIT; differential resistivity image

Sažetak
Instead of sinusoidal current pattern for determine the resistive component of impedance, short current pulses are used and voltage responses are measured. An experimental tomography system with 16 electrodes is developed. Measurements are obtained in cylindrical saline-filed tank in order to achieve pulse measurements performance, i.e. spatial resolution, conductivity contrast and sensitivity. Duty-cycle of applied current pulses was lower then 0.01. Because of relatively high voltage amplitudes (several volts), the signal to noise ratio is very high and the high input amplifiers gain is not demanded. The whole measurement system is much simpler then in the case of sinusoidal current measurement. Problems caused by different and high skin resistance have been solved. Image reconstruction is done using back projection method along straight lines (inverse Radon transform) and an algorithm implementation for reducing data artefacts due to the non-straight current distribution.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika



POVEZANOST RADA


Projekti:
036026

Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb

Profili:

Avatar Url Ante Šantić (autor)

Avatar Url Dubravko Kovačić (autor)

Poveznice na cjeloviti tekst rada:

Pristup cjelovitom tekstu rada

Citiraj ovu publikaciju:

Kovačić, Dubravko; Šantić, Ante
Pulse measurement performance in differential resistivity image reconstruction // Biomedical Applications of EIT, Scientific Abstracts
London: UCL, 2001. (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
Kovačić, D. & Šantić, A. (2001) Pulse measurement performance in differential resistivity image reconstruction. U: Biomedical Applications of EIT, Scientific Abstracts.
@article{article, year = {2001}, keywords = {EIT, differential resistivity image}, title = {Pulse measurement performance in differential resistivity image reconstruction}, keyword = {EIT, differential resistivity image}, publisher = {UCL}, publisherplace = {London, Velika Britanija} }
@article{article, year = {2001}, keywords = {EIT, differential resistivity image}, title = {Pulse measurement performance in differential resistivity image reconstruction}, keyword = {EIT, differential resistivity image}, publisher = {UCL}, publisherplace = {London, Velika Britanija} }




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