Optimisation of a tomography sensor for imaging of temperature in a gas turbine engine

Michael P. Wood, Krikor B. Ozanyan

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    We present a numerical study of tomographic reconstruction of gas temperature distributions from synthetic data of laser absorption measurements through the imaging plane. A mathematical expression which predicts the reconstruction error as a function of the beam configuration is developed, and a global optimization scheme is employed to minimize this predicted error subject to a constraint on the maximum number of permitted beams. This optimization methodology is applied to an annular measurement region and compared to conventional regular fan-beam arrangements in temperature tomography simulations. Synthetic data generated over the optimized beams led to temperature reconstructions with superior accuracy, provided Tikhonov inversion was used as the method of reconstruction. © 2013 IEEE.
    Original languageEnglish
    Title of host publicationIEEE SENSORS 2013 - Proceedings|IEEE SENSORS - Proc.
    Publication statusPublished - 2013
    Event12th IEEE SENSORS 2013 Conference - Baltimore, MD, United States
    Duration: 4 Nov 20136 Nov 2013


    Conference12th IEEE SENSORS 2013 Conference
    Country/TerritoryUnited States
    CityBaltimore, MD
    Internet address


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