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Infrared Species Limited Data Tomography Through Tikhonov Reconstruction

[+] Author Affiliations
K. J. Daun

University of Waterloo, Waterloo, ON, Canada

Paper No. HT2009-88218, pp. 187-196; 10 pages
doi:10.1115/HT2009-88218
From:
  • ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences
  • Volume 1: Heat Transfer in Energy Systems; Thermophysical Properties; Heat Transfer Equipment; Heat Transfer in Electronic Equipment
  • San Francisco, California, USA, July 19–23, 2009
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4356-7 | eISBN: 978-0-7918-3851-8
  • Copyright © 2009 by ASME

abstract

Optical tomography based on infrared laser light absorption is a promising way to measure spatially- and temporally-resolved fuel concentrations within combustion devices, but limited optical access often restricts the number of laser beams and their arrangement. This paper demonstrates how Tikhonov regularization based on a Laplacian smoothing matrix can solve the resulting limited data tomography problem, and provides superior reconstructions for Gaussian phantoms compared to modified Landweber reconstruction.

Copyright © 2009 by ASME

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