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Recent advances in thermal wave detection and ranging for non-destructive testing and evaluation of materials

机译:热波检测和测距的最新进展,用于材料的无损检测和评估

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摘要

Thermal Wave Detection and Ranging (TWDAR) for non-destructive testing (TNDT) is a whole field, non-contact and non-destructive inspection method to reveal the surface or subsurface anomalies in the test sample, by recording the temperature distribution over it, for a given incident thermal excitation. Present work proposes recent trends in non-stationary thermal imaging methods which can be performed with less peak power heat sources than the widely used conventional pulsed thermographic methods (PT & PPT) and in very less time compared to sinusoidal modulated Lock-in Thermography (LT). Furthermore, results obtained with various non-stationary thermal imaging techniques are compared with the phase based conventional thermographic techniques.
机译:用于非破坏性测试(TNDT)的热波检测和测距(TWDAR)是一种全场,非接触式和非破坏性的检查方法,可通过记录其上的温度分布来揭示测试样品中的表面或亚表面异常,对于给定的入射热激励。当前的工作提出了非平稳热成像方法的最新趋势,与正弦调制锁定热成像法(LT)相比,该方法可以使用比广泛使用的常规脉冲热成像方法(PT&PPT)更少的峰值功率热源来执行,并且所需时间更少)。此外,将使用各种非平稳热成像技术获得的结果与基于相位的常规热成像技术进行了比较。

著录项

  • 来源
    《Thermonsense: thermal infrared applications XXXV》|2013年|870510.1-870510.6|共6页
  • 会议地点 Baltimore MD(CN)
  • 作者单位

    Department of Electrical Engineering., Indian Institute of Technology Ropar, India,InfraRed Imaging Laboratory (IRIL), Electronics and Communication Engineering ResearchGroup, PDPM-Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Airport road, Khamaria (P.O), Jabalpur, India-482005;

    Signal Processing Research Group, K L University, Green Fields, Vaddeswaram, Guntur (Dist.), Andhra Pradesh, 522 502, India,InfraRed Imaging Laboratory (IRIL), Electronics and Communication Engineering ResearchGroup, PDPM-Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Airport road, Khamaria (P.O), Jabalpur, India-482005;

    Department of Electrical Engineering., Indian Institute of Technology Ropar, India;

    InfraRed Imaging Laboratory (IRIL), Electronics and Communication Engineering ResearchGroup, PDPM-Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Airport road, Khamaria (P.O), Jabalpur, India-482005;

    InfraRed Imaging Laboratory (IRIL), Electronics and Communication Engineering ResearchGroup, PDPM-Indian Institute of Information Technology Design and Manufacturing, Jabalpur, Airport road, Khamaria (P.O), Jabalpur, India-482005;

    Graduate School of Chiba University, Artificial System Science, 1-33 Yayoi Inage Chiba #263-8522 Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Active thermography; Pulse compression; Frequency modulated thermal wave imaging; Barker code;

    机译:主动热成像;脉冲压缩调频热波成像;巴克码;

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