环境和介质对测温结果的影响

发布时间：2018-04-27 11:09

  本文选题：测温环境 + 衰减效应　； 参考：《光谱学与光谱分析》2017年07期

【摘要】：建立了一种理论模型和实验方法,可以有效地修正来自于环境和介质对测温结果的影响。这种修正方法通过计入测温环境对辐射体的衰减系数,可以显著改善以灰体辐射为基础的测温技术的精度和普适性。首先,利用多通道CCD图像光谱仪快速准确地获得给定辐射体在空气中的指纹光谱,并将其等效为一个标准的灰体模型;其次,将该辐射体放入未知的环境和介质中,重复测量该辐射体的辐射光谱,并建立包含待测介质对辐射体的衰减特征的灰体模型。最后,通过对比上述两种情况下的灰体模型,便可精确确定该辐射体在该环境和介质下的温度。通过对处于不同环境和介质下的相同辐射体的系统实验,检验了该测温技术和修正方法的普适性和准确性。
[Abstract]:A theoretical model and an experimental method are established, which can effectively correct the influence of environment and medium on the temperature measurement results. This method can improve the accuracy and universality of the temperature measurement technology based on gray body radiation by taking into account the attenuation coefficient of the radiator in the temperature measurement environment. Firstly, the fingerprint spectrum of a given radiator in the air is obtained quickly and accurately by using a multichannel CCD image spectrometer, and it is equivalent to a standard grey body model. Secondly, the radiator is placed in unknown environment and medium. The radiation spectra of the radiator were measured repeatedly, and a grey body model containing the attenuation characteristics of the medium to be measured was established. Finally, the temperature of the radiator in the environment and medium can be accurately determined by comparing the grey body model with the above two cases. Through the systematic experiments on the same radiator in different environment and medium, the universality and accuracy of the temperature measurement technique and the correction method are tested.
【作者单位】： 天津理工大学理学院;
【基金】：国家自然科学基金项目(11174218)资助
【分类号】：O551.2
，

本文编号：1810490