Method for Contactless Determination of the Height of A Fuel Assembly by Means of A 3-D Reconstruction of A Collinear Stereopair Images

 
 
 
  • Abstract
  • Keywords
  • References
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  • Abstract


    A method for determining the head height of fuel assemblies in the reactor core of a nuclear power unit using a 3-D reconstruction of a stereopair of collinear images is considered. The method is based on the principle of statistical evaluation of the height of a set of points for a 3-D reconstruction of the contour of the head of the fuel assembly. To obtain a stereopair of images, it is suggested to use a collinear digital stereo-vision system. A model experiment was carried out. The results are compared with the known method for determining the height of the heads of fuel assemblies, based on an estimate of the height of the centers of gravity of the contours of fuel assembly heads. The proposed method shows a higher accuracy in solving the problem of determining the heights of fuel assembly heads in comparison with the known method.

     

     


  • Keywords


    Digital stereo vision system, 3-D reconstruction, measurement accuracy.

  • References


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      [4] Konstantin E. Rumyantsev, Sergey L. Balabaev, Irina Yu. Balabaeva., “Fuel Assembly Height Measurements at the Nuclear Power Plant Unit Active Zone”, Communications in Computer and Information Science, Vol.712, (2017), pp.156 – 163.

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      [6] Rumyantsev K. E., Kravtsov S. V., “Analysis of measurement error of depth points of a three-dimensional scene stereoscopic digital television system”, Radiotechnics, Vol.9 (2011), pp.83–93.

      [7] Kravtsov S. V., Rumyantsev K. E., “The Analysis of Measurement Capabilities Onboard Collinear Digital Stereo Vision Systems”, 2016 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2016 - Conference Proceedings, pp.001597–001602. https://ieeexplore.ieee.org/document/7844467/ DOI: 10.1109/SMC.2016.7844467


 

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Article ID: 16323
 
DOI: 10.14419/ijet.v7i3.13.16323




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