Emissivity range constraints algorithm for multi-wavelength pyrometer (MWP).
Emissivity range constraints algorithm for multi-wavelength pyrometer (MWP).
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DOI：
10.1364/oe.24.019185
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发表时间：
2016-08
期刊：
影响因子：
3.8
通讯作者：
Jian Xing;R. S. Rana;Weihong Gu
中科院分区：
文献类型：
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作者：
Jian Xing;R. S. Rana;Weihong Gu
为了实现多波长高温计（MWP）对高温目标的快速真实测温，提出了不受发射率影响的发射率范围约束优化数据处理算法。通过拟合不同发射率分布目标模型的大量数据，探索发射率偏差与真实温度之间的关系，得到每次迭代的有效搜索范围，从而大大减少了数据处理时间。仿真和实验结果表明，在1800K真温下，计算时间缩短0.2秒，绝对误差为25K，效率比原有算法提高90%以上。该方法具有简单、快速、适合在线高温测量等优点。
In order to realize rapid and real temperature measurement for high temperature targets by multi-wavelength pyrometer (MWP), emissivity range constraints to optimize data processing algorithm without effect from emissivity has been developed. Through exploring the relation between emissivity deviation and true temperature by fitting of large number of data from different emissivity distribution target models, the effective search range of emissivity for every time iteration is obtained, so data processing time is greatly reduced. Simulation and experimental results indicate that calculation time is less by 0.2 seconds with 25K absolute error at 1800K true temperature, and the efficiency is improved by more than 90% compared with the previous algorithm. The method has advantages of simplicity, rapidity, and suitability for in-line high temperature measurement.