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Number of results
2014 | 35 | 1 | 19-33

Article title

Selection of Optical Tomography Parameters for Gas Bubble Shape Analysis

Content

Title variants

Languages of publication

EN

Abstracts

EN
An optical tomograph in which a tested object is illuminated from five directions has been presented in the paper. The measurements of luminous intensity after changing into discrete signals (0 or 1) in the detectors equipped with 64 optical sensors were subjected to reconstruction by means of the matrix algorithm. Detailed description of the measuring sensor, as well as the principles of operation of the electronic system, has been given in the paper. Optical phenomena occurring at the phase boundary while transmitted through the sensor wall and phenomena inside the measuring space have also been taken into account. The method of the sensor calibration has been analysed and a way of technical solution of the problem under consideration has been discussed. The elaborated method has been tested using objects of the known shape and dimensions. It was found that reconstruction of the shapes of moving bubbles and determination of their main parameters is also possible with a reasonable accuracy.

Publisher

Year

Volume

35

Issue

1

Pages

19-33

Physical description

Dates

published
1 - 3 - 2014
accepted
10 - 12 - 2013
online
25 - 4 - 2014
received
6 - 12 - 2012

Contributors

  • Technical University of Opole, Department of Thermal Engineering and Industrial Facilities, ul. Mikołajczyka 5, 45-233 Opole, Poland

References

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  • Rząsa M.R., Pląskowski A., 2003. Application of optical tomography for measurements of aeration parameters in large water tanks. Meas. Sci. Technol., 14, 199-204. DOI: 10.1088/0957-0233/14/2/307.[Crossref]
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  • Yonguk R., Kuang-An C., Ho-Joon L., 2005. Use of bubble image velocimetry for measurement of plunging wave impinging on structure and associated greenwater. Meas. Sci. Technol., 16, 1945-1953. DOI: 10.1088/0957-0233/16/10/009 [Crossref]

Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_cpe-2014-0002
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