| 叶成炯,董学金,邵红亮,李晓东,张东升*.表面涂层半球全发射率的非接触测量探索[J].实验力学,2024,39(1):27~33 |
| 表面涂层半球全发射率的非接触测量探索 |
| Study on non-contact measurement of total hemispherical emissivity of surface coatings |
| 投稿时间：2023-06-05 修订日期：2023-06-21 |
| DOI：10.7520/1001-4888-23-117 |
| 中文关键词: 非接触 红外相机 半球全发射率 涂层 |
| 英文关键词:non-contact infrared camera total hemispherical emissivity coating |
| 基金项目:国家自然科学基金项目(12072184) |
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| 摘要点击次数: 2040 |
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| 中文摘要: |
| 涂层表面发射率是飞行器表面涂层性能的关键指标之一。本文针对现有测量方法的局限性,建立了非接触测量半球全发射率的数学模型,应用红外相机作为探测器,开发了涂层发射率的非接触测量装置,该装置可实现原位、实时的测量；通过实验分析了影响测量结果的多个因素,利用搭建的非接触测量装置对多种涂层试样进行了标定和检测,并将测试结果与某型辐射率仪的测量结果进行比较,半球全发射率最大相对误差百分数小于4.1%,验证了该测量方法的有效性。 |
| 英文摘要: |
| Emissivity of coating surface is one of the key parameters of aircraft performance. Due to the limitations of existing measurement methods, this paper establishes a mathematical model for non-contact measurement of total hemispherical emissivity, and develops a non-contact measurement device for coating emissivity which enables in-situ, real-time measurements, by means of an infrared camera. Some key factors that affect measurement results are discussed. After the developed non-contact measurement setup was constructed,it was utilized to calibrate and measure a variety of coating specimens. The measurement results were compared with the existing device,and it was found that the maximum relative error percentage of total hemispherical emissivity was less than 4.1%, which verified the validity of the measurement method. |
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