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首页> 外文期刊>International Journal of Thermophysics >Spatial Scatter Effects in the Calibration of IR Pyrometers and Imagers
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Spatial Scatter Effects in the Calibration of IR Pyrometers and Imagers

机译：红外高温计和成像仪校准中的空间散射效应

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摘要

Differences in the calibration conditions and the real-life applications of infrared pyrometers, radiometers, or imagers can contribute to significant measurement errors due to the presence of scattered light from the areas surrounding the reference source during the calibration process or the measured object in the field measurements. This out-of-field scatter (also known as size-of-source effect, SSE) has to be analyzed separately for each artifact to ensure applicability of the calibration results to the scene of actual measurement. This article discusses SSE characterization methods and specific requirements for calibrating single-element radiometers in the near- and mid-IR parts of the optical radiation spectrum. Two new SSE tools developed at National Institute of Standards and Technology to support routine calibration of IR pyrometers, radiometers, and imagers at the recently developed Advanced Infrared Radiometry and Imaging (AIRI) facility are described. The results of characterization of different commonly used radiometers, including an industrial-grade pyrometer, a high-accuracy pyrometer, two different infrared spectrometers, and an infrared imager, are presented.
机译：校准条件的差异以及红外高温计，辐射计或成像仪在现实生活中的应用，可能会由于在校准过程中或现场被测物体周围存在来自参考源周围区域的散射光而导致明显的测量误差测量。必须针对每个伪像分别分析这种场外散射（也称为源尺寸效应，SSE），以确保将校准结果应用于实际测量现场。本文讨论了在光辐射谱的近红外和中红外部分校准单元素辐射计的SSE表征方法和特定要求。描述了美国国家标准技术研究所开发的两个新的SSE工具，以支持最近开发的高级红外辐射和成像（AIRI）设施的红外高温计，辐射计和成像仪的常规校准。给出了表征不同常用辐射计的结果，包括工业级高温计，高精度高温计，两个不同的红外光谱仪和红外成像仪。

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