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Experimental investigation of stereocamera's error to optimize dust observation on HL-2A tokamak

Published online by Cambridge University Press:  02 November 2022

Zhuang Ma
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Wei Li
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Zhengyang Li
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Zhihui Huang
Affiliation:
Southwestern Institute of Physics, PO Box 432, Chengdu 610041, PR China
Jue Shen
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Dong Huang
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Yu Huang
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Zhuang Liu
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Liang Gu
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Shaoyu Lu
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
Xiaoxue He
Affiliation:
Southwestern Institute of Physics, PO Box 432, Chengdu 610041, PR China
Longwen Yan
Affiliation:
Southwestern Institute of Physics, PO Box 432, Chengdu 610041, PR China
Min Xu
Affiliation:
Southwestern Institute of Physics, PO Box 432, Chengdu 610041, PR China
Yan Feng*
Affiliation:
Institute of Plasma Physics and Technology, School of Physical Science and Technology, Soochow University, Suzhou 215006, PR China
*
Email address for correspondence: fengyan@suda.edu.cn

Abstract

An experimental investigation of the stereocamera's systematic error is carried out to optimize three-dimensional (3-D) dust observation on the HL-2A tokamak. It is found that a larger 3-D region occupied by all calibration points is able to reduce the 3-D reconstruction systematic error of the stereocamera. In addition, the 3-D reconstruction is the most accurate around the region where the calibration points are located. Based on these experimental results, the design of the stereocamera on the HL-2A tokamak is presented, and a set of practical procedures to optimize the 3-D reconstruction accuracy of the stereocamera are proposed.

Type
Research Article
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

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Experimental investigation of stereocamera's error to optimize dust observation on HL-2A tokamak
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