Foil Calibration for IR Imaging Bolometer by Laser Irradiation
Foil Calibration for IR Imaging Bolometer by Laser Irradiation
复制标题
激光辐照红外成像测辐射热计的箔校准
DOI：
10.1585/pfr.7.2405039
复制
发表时间：
2012
影响因子：
0.8
通讯作者：
T. Hino
中科院分区：
文献类型：
--
作者：
R. Sano;B. Peterson;E. Drapiko;D. Seo;Y. Yamauchi;T. Hino
红外成像视频测辐射热计（IRVB）提供了等离子体辐射的功率分布。辐射分布由测辐射热计箔上的温度分布获得。需要在测辐射热计箔上的温度分布和入射辐射功率之间进行校准。本文介绍了一种新的校准技术，我们已经开发的箔。用He-Ne激光照射测辐射热计箔，改变照射位置，用红外相机测量温度分布。通过与有限元计算结果的对比，分析了温度场的分布。我们重复这种比较，同时改变计算中的参数，如有效箔厚度和有效发射率，直到计算的分布收敛到测量的分布。有限元法计算的温度分布与实测结果吻合较好，可以进行辐射功率与温度分布的校准。
The IR imaging video bolometer (IRVB) provides the power distribution of plasma radiation. The radiation distribution is obtained from the temperature distribution on the bolometer foil. It is necessary to calibrate between the temperature distribution and the incident radiation power on the bolometer foil. This paper describes a new calibration technique for the foil which we have developed. The bolometer foil was irradiated with a He-Ne laser and the temperature distribution was measured by an IR camera while changing the irradiation position. The temperature distribution measured was analyzed by the comparison with the results calculated by FEM. We repeated this comparison while changing the parameters such as effective foil thickness and effective emissivity in the calculation until the calculated distribution converged to the measured one. The temperature distribution calculated by the FEM agreed well with the measured one, so the calibration between the radiation power and the temperature profile can be suitably conducted by this technique.