Development of an electrical impedance tomography system for an air-water vertical bubble column

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Because the components of a multiphase flow often exhibit different electrical properties, a variety of probes have been developed to study such flows by measuring impedance in the region of interest. Researchers are now using electric fields to reconstruct the impedance distribution within a measurement volume via Electrical Impedance Tomography (EIT). EIT systems employ voltage and current measurements on the boundary of a domain to create a representation of the impedance distribution within the domain. The development of the Sandia EIT system (S-EIT) is reviewed The construction of the projection acquisition system is discussed and two specific EIT inversion algorithms ... continued below

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8 p.

Creation Information

O`Hern, T.J.; Torczynski, J.R.; Ceccio, S.L.; Tassin, A.L.; Chahine, G.L.; Duraiswami, R. et al. September 1, 1995.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Because the components of a multiphase flow often exhibit different electrical properties, a variety of probes have been developed to study such flows by measuring impedance in the region of interest. Researchers are now using electric fields to reconstruct the impedance distribution within a measurement volume via Electrical Impedance Tomography (EIT). EIT systems employ voltage and current measurements on the boundary of a domain to create a representation of the impedance distribution within the domain. The development of the Sandia EIT system (S-EIT) is reviewed The construction of the projection acquisition system is discussed and two specific EIT inversion algorithms are detailed. The first reconstruction algorithm employs boundary element methods, and the second utilizes finite elements. The benefits and limitations of EIT systems are also discussed. Preliminary results are provided.

Physical Description

8 p.

Notes

OSTI as DE95017879

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  • 1995 International mechanical engineering congress and exhibition, San Francisco, CA (United States), 12-17 Nov 1995

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  • Other: DE95017879
  • Report No.: SAND--95-1992C
  • Report No.: CONF-951135--17
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 113767
  • Archival Resource Key: ark:/67531/metadc628315

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  • September 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 13, 2016, 1:31 p.m.

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O`Hern, T.J.; Torczynski, J.R.; Ceccio, S.L.; Tassin, A.L.; Chahine, G.L.; Duraiswami, R. et al. Development of an electrical impedance tomography system for an air-water vertical bubble column, article, September 1, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc628315/: accessed September 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.