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Emissivity estimation for accurate quantitative thermography

机译：用于精确定量热成像的发射率估算

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摘要

In this paper an emissivity measurement method is proposed; it relies on individual calibration functions, and is based on the spectral response of a specific IR sensor. The reflected temperature is kept constant during the test, and its knowledge is not required. Results of measurements on materials commonly used as emissivity references in quantitative thermography are reported. Computer simulations of indoor and outdoor thermographic inspections show the differentiated influence of emissivity and surroundings temperature on the measurement accuracy. Finally experimental results of absolute and differential temperature measurements are discussed.
机译：本文提出了一种辐射率测量方法。它依赖于单独的校准功能，并且基于特定红外传感器的光谱响应。在测试过程中，反射温度保持恒定，并且不需要知识。报告了在定量热成像中通常用作发射率参考的材料的测量结果。室内和室外热成像检查的计算机模拟显示了发射率和环境温度对测量精度的不同影响。最后讨论了绝对和差分温度测量的实验结果。

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  • 来源
    《NDT & E international》 |2012年第2012期|p.127-134|共8页
  • 作者

    Sergio Marinetti; Pier Giorgio Cesaratto;

  • 作者单位

    ITC-CNR Istituto per le Tecnologie della Costruzione, sede di Padova, Consiglio Nazionale delle Ricerche, 4 Corso Stati Uniti, 1-35127 Padova, Italy;

    ITC-CNR Istituto per le Tecnologie della Costruzione, sede di Padova, Consiglio Nazionale delle Ricerche, 4 Corso Stati Uniti, 1-35127 Padova, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    thermography; emissivity measurement; temperature measurements;

    机译：热成像发射率测量温度测量;

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