A multi-spectral radiation temperature measurement method and system
A technology of radiation temperature measurement and multi-spectrum, applied in the field of multi-spectral radiation temperature measurement method and system
Active Publication Date: 2021-04-06
TAIYUAN UNIV OF TECH
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[0005] The purpose of the present invention is to provide a multi-spectral radiation temperature measurement method and system, which solves the problem of relying on assumptions or certain predictive parameters
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[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0056] The purpose of the present invention is to provide a multi-spectral radiation temperature measurement method and system to solve the problem of relying on assumptions or certain predictive parameters.
[0057] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[00...
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The invention discloses a multi-spectral radiation temperature measurement method and system, and relates to the technical field of thermal radiation temperature measurement and thermal radiation characteristic measurement. The method includes: using the detector device to obtain the measured temperature; using the relationship between the measured temperature determined by the principle of multispectral temperature measurement, the real temperature of the measured target, and the spectral emissivity of the measured target to determine a global optimization function; initializing the real temperature and Spectral emissivity: the global optimization function is iterated through the initial value of temperature and the initial value of emissivity, and the optimal real temperature and optimal spectral emissivity of the isothermal region of the measured target are obtained. Aiming at the temperature field distribution of the measured target with non-uniform temperature, the present invention uses multiple spectral radiation measurement information in different temperature regions and cooperates with the global optimization function to calculate the temperature field and spectral emissivity distribution of the measured target, which has high measurement accuracy and is especially suitable for Suitable for harsh measurement environments with high temperature, high speed and high enthalpy.
Description
technical field [0001] The invention relates to the technical field of thermal radiation temperature measurement and thermal radiation characteristic measurement, in particular to a multi-spectral radiation temperature measurement method and system. Background technique [0002] Infrared radiation temperature measurement technology is a measurement technology that determines the surface temperature of an object by measuring the single-spectrum, double-spectrum, multi-spectrum or full-spectrum thermal radiation intensity on the surface of the object. The basic principle of the radiation temperature measurement method is to use the Planck black body radiation formula as the calculation basis, and the measurement results are the brightness temperature, color temperature and radiation temperature of the measured target. In order to obtain the real temperature of the measured target, it is necessary to determine a parameter in the Planck blackbody radiation formula that is relate...
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IPC IPC(8): G01J5/10G01J5/08
CPCG01J5/0887G01J5/10G01J2005/0077
Inventor 李天娥苗洋程旭亮
Owner TAIYUAN UNIV OF TECH