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This study investigates the effect of acquisition time on the quality and information of laser remelting process (LRM) dynamics by means of a near-infrared (NIR) camera. Experiments were conducted with varying laser powers (7.5, 10, 12.5 W) and acquisition times (50–200 μs). The results suggest that acquisition time constitutes a critical element of the control process since it affects the observability and identifiability of LRM dynamics. More specifically, optimal exposure time balances acquisition rate and quality, with 50 μs being the most effective value. Future research will explore strategies to improve data acquisition and develop closed-loop control systems for LRM processes.

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The Effect of Acquisition Time on Thermographic Monitoring and Identification of LRM Process Dynamics

  • 会议论文

  • 发表日期：

    2026年

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  • Patrick R. Meyer,
  • Evgueni V. Bordatchev,
  • O. Remus Tutunea-Fatan

摘要

This study investigates the effect of acquisition time on the quality and information of laser remelting process (LRM) dynamics by means of a near-infrared (NIR) camera. Experiments were conducted with varying laser powers (7.5, 10, 12.5 W) and acquisition times (50–200 μs). The results suggest that acquisition time constitutes a critical element of the control process since it affects the observability and identifiability of LRM dynamics. More specifically, optimal exposure time balances acquisition rate and quality, with 50 μs being the most effective value. Future research will explore strategies to improve data acquisition and develop closed-loop control systems for LRM processes.