Laser & Optoelectronics Progress, Volume. 62, Issue 3, 0312006(2025)

High Uniformity Light Source for Contact Angle Measurement Based on Particle Swarm Optimization Algorithm

Jiaxian Zhang1、*, Jun Wang2,3, and Zhaoliang Cao1,3
Author Affiliations
  • 1School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu , China
  • 2School of Electronic & Information Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu , China
  • 3State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, Jilin , China
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    The uniformity of the light source in contact angle measurement systems directly influences the accuracy of droplet image acquisition, which subsequently impacts the reliability of contact angle measurements. However, systematic studies and designs aimed at achieving optimal light source configurations in domestic contact angle equipment are currently insufficient. This study aims to achieve high uniformity and low cost by employing the particle swarm optimization (PSO) algorithm. Through practical analysis, an optimal arrangement of light source modules and control systems is developed. Using a contact angle standard plate, the variance, mean square error, and relative error are calculated as 30°, 60°, 90° and 120°, and the gray scale of the picture is obtained. Compared with the data measured by other methods, the results demonstrate that the design is reliable and can be used to measure the light source of portable contact angle equipment within the industry.

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    Jiaxian Zhang, Jun Wang, Zhaoliang Cao. High Uniformity Light Source for Contact Angle Measurement Based on Particle Swarm Optimization Algorithm[J]. Laser & Optoelectronics Progress, 2025, 62(3): 0312006

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    Paper Information

    Category: Instrumentation, Measurement and Metrology

    Received: Apr. 22, 2024

    Accepted: Jun. 4, 2024

    Published Online: Feb. 10, 2025

    The Author Email:

    DOI:10.3788/LOP241133

    CSTR:32186.14.LOP241133

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