多矩形空腔阵列的发射率研究
发布时间：2018-10-17 13:34
【摘要】：为形成可调节的温差,该文设计一种多矩形空腔阵列,阵列由3个分体单元组成,每个单元包含有确定深度和宽度比的矩形空腔。使用红外热像仪对阵列上端面拍摄热图像,不同单元的表观温度各不相同。通过理论计算给出单元表面发射率的计算公式,通过实验测量单元表面发射率,并将理论计算值与实验测量值进行对比。结果表明:在深度和宽度较大时,计算值与测量值较为接近,在深度和宽度较小时两者差值较大。实验证实多矩形空腔阵列可用于红外成像设备的测试和校准等用途。
[Abstract]:In order to form the adjustable temperature difference, a multi-rectangular cavity array is designed. The array consists of three split elements, each containing a rectangular cavity with a ratio of depth to width. The infrared thermal imager is used to photograph the thermal image on the end face of the array, and the apparent temperature of different units is different. The calculation formula of unit surface emissivity is given by theoretical calculation, and the emissivity of unit surface is measured experimentally, and the theoretical calculation value is compared with the experimental measurement value. The results show that the calculated value is close to the measured value when the depth and width are larger, and the difference between the calculated value and the measured value is larger when the depth and width are small. Experimental results show that the multi-rectangular cavity array can be used for the testing and calibration of infrared imaging equipment.
【作者单位】： 中国计量大学计量测试工程学院;
【基金】：国家科技重大专项(2015ZX02101)
【分类号】：TN219
本文编号：2276821
[Abstract]:In order to form the adjustable temperature difference, a multi-rectangular cavity array is designed. The array consists of three split elements, each containing a rectangular cavity with a ratio of depth to width. The infrared thermal imager is used to photograph the thermal image on the end face of the array, and the apparent temperature of different units is different. The calculation formula of unit surface emissivity is given by theoretical calculation, and the emissivity of unit surface is measured experimentally, and the theoretical calculation value is compared with the experimental measurement value. The results show that the calculated value is close to the measured value when the depth and width are larger, and the difference between the calculated value and the measured value is larger when the depth and width are small. Experimental results show that the multi-rectangular cavity array can be used for the testing and calibration of infrared imaging equipment.
【作者单位】： 中国计量大学计量测试工程学院;
【基金】：国家科技重大专项(2015ZX02101)
【分类号】：TN219
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，本文编号：2276821
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