A new method on estimating object emissivity by using four times measuring and principle of temperature compensation

文献类型： 外文期刊

第一作者： Zhang Ren-Hua

作者： Zhang Ren-Hua;Tian Jing;Su Hong-Bo;Hao Gui-Bin;Jiang Bo;Liu Su-Hua;Mi Su-Jnan;Mi Su-Jnan;Li Zhao-Liang;Li Zhao-Liang;Hao Gui-Bin;Jiang Bo;Liu Su-Hua

作者机构：

关键词： emissivity;two times radiation and four times observing method;temperature compensation;a universal expression of solving emissivity;process method

期刊名称：JOURNAL OF INFRARED AND MILLIMETER WAVES （ 影响因子：0.557； 五年影响因子：0.445 ）

ISSN： 1001-9014

年卷期： 2017 年 36 卷 6 期

页码：

收录情况： SCI

摘要： A "two times thermal irradiance and four times measuring method" was proposed to measure the surface emissivity of any object. Compared with the previous methods, the proposed method can completely eliminate the interference of the lens and cavity walls of the sensor to measure accurately the irradiance of the observed object, implying its ability to improve the accuracy of surface emissivity measurement and making the equipment of emissivity measurement portable. The designed 1 000 + w/m(2) strong heat radiation source considerably improved the signal to noise ratio of the equipment. To compensate the warming effect of the measured object under the strong heat radiation source, we proposed a universal expression to solve the emissivity in the non-isothermal system and a "Process Method" to reduce warming. The comparison of three measurement results showed that the proposed method outperformed the others.

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