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Method for measuring actual temperature of flames by using all information of radiation spectrum and measuring system

A technology of actual temperature and measurement system, which is applied in the field of instruments and meters, can solve the problems of easy damage to the measured flame components and thermal equilibrium state, difficult to further improve the accuracy of temperature measurement, and heavy calculation workload, etc., to achieve strong anti-environmental interference ability , Small calculation workload, high temperature measurement accuracy

Active Publication Date: 2014-07-02
TIANJIN YITONG ELECTRIC TECH DEV
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Problems solved by technology

The disadvantages of "emission-absorption spectroscopy" are: large structure, expensive cost, complicated technology, easy to destroy the components and thermal equilibrium state of the measured flame, etc.
The disadvantage of the "pyrometer method" is that the true temperature of the flame needs to be corrected after "emissivity correction"
Because "emissivity correction" requires a large amount of computational work and can only use a limited number of spectral information, it is difficult to further improve the temperature measurement accuracy of this method

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  • Method for measuring actual temperature of flames by using all information of radiation spectrum and measuring system
  • Method for measuring actual temperature of flames by using all information of radiation spectrum and measuring system
  • Method for measuring actual temperature of flames by using all information of radiation spectrum and measuring system

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Embodiment Construction

[0041] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0042] The present invention transforms the Wien displacement law, which is only applicable to ideal black bodies, into a "generalized Wien displacement law" applicable to specific non-black body objects to be measured through "energy level structure correction". For the non-blackbody object to be tested, its "color temperature" is the same as the actual temperature, and the details are as follows:

[0043] The content of Wien's displacement law is: in an ideal black body, on the distribution curve of emission power E(λ, T) according to wavelength λ, E(λ, T) has a maximum value called peak value, which is the maximum monochromatic emission power. The wavelength corresponding to this maximum, with λ m is called the peak wavelength. For each temperature, there is a distribution ...

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Abstract

The invention discloses a method for measuring actual temperature of flames by using all information of a radiation spectrum and a measuring system. More theorized data processing is carried out by applying energy level structure correction, and all the information of the radiation spectrum can be used. A keyboard input mode or a data transmission input mode is adopted to obtain energy level structure correction parameters, and finally more accurate actual temperature values of measured flames are obtained. According to the method for measuring the actual temperature of the flames by using all the information of the radiation spectrum and the measuring system, the defect that the actual temperature of the flames can be obtained only by carrying out radiance correction through data with large computational effort when people adopts a multi-spectrum temperature measuring method is overcome. At present, only a few pieces of monochrome radiating power information in the radiation spectrum can be used in the existing multi-spectrum temperature measuring method, and all the monochrome radiating power information, generally several thousand pieces of the monochrome radiating power information, in the radiation spectrum can be used in the method and the measuring system.

Description

technical field [0001] The invention relates to the radiation spectrum temperature measurement method and equipment field in the field of instruments and meters, in particular to a method and a measurement system for measuring the actual temperature of a flame by using all the information of the radiation spectrum. Background technique [0002] Flame temperature measurement technology is currently a hot research topic at home and abroad. It has important significance and application value in the fields of energy saving and emission reduction, aerospace, strategic and tactical weapon development and other fields. There are many methods for measuring flame temperature, mainly including contact method, imaging method, laser spectroscopy, acoustic wave method and radiation method. From the perspective of the international practical temperature scale, whether it is used for the reproduction of the temperature standard or the actual measurement, the radiation temperature measurem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/60
CPCG01J5/00G01J5/601G01J5/0018G01J5/025G01J5/80G01J5/0096
Inventor 曹柏林谭成章曹锐刘成刚曹利陈长芳李耀戴长健
Owner TIANJIN YITONG ELECTRIC TECH DEV
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