• Journal of Applied Optics
  • Vol. 45, Issue 5, 1064 (2024)
Wei ZHANG, Wenjian CHEN*, and Wusen LI
Author Affiliations
  • School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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    DOI: 10.5768/JAO202445.0507002 Cite this Article
    Wei ZHANG, Wenjian CHEN, Wusen LI. Parameter optimization of laser displacement sensor based on gravitational search algorithm[J]. Journal of Applied Optics, 2024, 45(5): 1064 Copy Citation Text show less

    Abstract

    In order to optimize the performance and volume of the medium-range laser triangular displacement sensor, a mathematical model was established to optimize the structural parameters with the 200 mm~500 mm range as an example. In the structural design of the sensor, a plane mirror was used to fold the optical path, and the objective function was defined with the working object distance, lens focal length, linear array detector position and mirror position as the optimized parameters, gravitational search algorithm (GSA) was used to optimize the structure of the displacement sensor. After the algorithm iteration, compared with the traditional laser triangle structure with the same width limit, the sensitivity of the optimized structure was increased by 24.29% at 500 mm, and the nonlinear error was reduced from 11.40% to 7.43%. The results show that this structure and optimization algorithm have a positive effect on the performance and volume of the laser triangular displacement sensor.
    Wei ZHANG, Wenjian CHEN, Wusen LI. Parameter optimization of laser displacement sensor based on gravitational search algorithm[J]. Journal of Applied Optics, 2024, 45(5): 1064
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