• Journal of Applied Optics
  • Vol. 41, Issue 2, 366 (2020)
Wenjie GUAN, Qingwei WU, Chao GONG, Yingchun WU, and Xuecheng WU*
Author Affiliations
  • State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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    DOI: 10.5768/JAO202041.0203005 Cite this Article
    Wenjie GUAN, Qingwei WU, Chao GONG, Yingchun WU, Xuecheng WU. Dynamic liquid film measurement with Fourier transform profilometry[J]. Journal of Applied Optics, 2020, 41(2): 366 Copy Citation Text show less

    Abstract

    The high-speed measurement and reconstruction of dynamic liquid film 3D morphology is very important for the industrial process optimization in energy and power fields. Based on the Fourier transform profilometry, the simulation was performed for both slow and fast varying surfaces. The influencing factors of reconstructive accuracy on object surface morphology such as surface height change rate, environment random noise and fringe frequency were studied. And according to the simulation results, the optimal system parameters were obtained, high-speed 3D structured light measurement system was established and the surface morphology of dynamic liquid film was measured. The experimental results show that, as the liquid film flows downward along the vertical wall surface, the liquid film thickness first increases and then decreases, and the average error of the height direction is 0.1 mm. This work demonstrates that Fourier transform profilometry can be well applied in the high-speed measurement of dynamic liquid film.
    Wenjie GUAN, Qingwei WU, Chao GONG, Yingchun WU, Xuecheng WU. Dynamic liquid film measurement with Fourier transform profilometry[J]. Journal of Applied Optics, 2020, 41(2): 366
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