研究目的
Investigating the metrological problems associated with methods of spectral similitude and the spectral ratio in pyrometry, as well as methods of solving these problems.
研究成果
The article concludes that metrological assurance of pyrometric measurements of the temperature of physical objects, especially nongray ones, is currently lacking. It suggests the development of new instruments for measuring spectral emissivity to reduce method errors to the level of instrumental errors.
研究不足
The study highlights the lack of knowledge about the spectral emissivity of the object being measured as a significant limitation. It also points out the challenges in establishing traceability for pyrometers with controls and the need for specialized instruments to measure spectral emissivity.
1：Experimental Design and Method Selection:
The article analyzes the spectral similitude and spectral-ratio methods for temperature measurement, focusing on the challenges posed by objects with emissivity differing from unity.
2：Sample Selection and Data Sources:
The study considers theoretical models and practical examples, including the use of tandem photodiodes in spectral-ratio pyrometers.
3：List of Experimental Equipment and Materials:
Mentions the use of spectral-ratio pyrometers, light filters, and tandem photodiodes.
4：Experimental Procedures and Operational Workflow:
Describes the process of measuring temperature using spectral-ratio pyrometers and the correction methods for nongray bodies.
5：Data Analysis Methods:
Discusses the computational methods for correcting the temperature measurements of nongray bodies, including the use of the Wien approximation and experimental dependences.
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