Temperature measuring system and temperature measuring method based on multi-spectrum
A technology of temperature measurement and multi-spectrum, which is applied in the field of temperature measurement system based on multi-spectrum, can solve the problems of slow conversion speed and achieve the effect of simple operation and accurate measurement results
Active Publication Date: 2019-07-23
CHINA UNIV OF GEOSCIENCES (WUHAN)
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[0003] However, the existing multi-spectral measurement system is limited by the optical path. It needs to use mechanical scanning to measure data corresponding to multiple wavelengths each time, and the conversion speed is relatively slow.
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[0043] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.
[0044] refer to figure 1 , the temperature measurement system based on multi-spectrum of the present embodiment comprises sequentially arranged:
[0045] Optical fiber, one end of the optical fiber faces the measured object, so that the light emitted by the measured object can enter the optical fiber from the end; through the optical fiber, only a small amount of light emitted by the light source can enter the optical fiber and be processed, so as to avoid the light source of the light source being damaged due to diffuse reflection The measurement results caused by the amplification are too large;
[0046]The attenuation sheet is set at the other end of the optical fiber so that the light energy coming out of the other...
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The invention discloses a temperature measuring system and temperature measuring method based on a multi-spectrum. The temperature measuring system includes the following parts of an optical fiber, anattenuator, a liquid crystaltunablefilter, a photodiode, a signalconditioningcircuit, an A / D converter and a processor. A signal input end of the processor is connected with an output end of the A / Dconverter, and a control signal output end is connected to a control signal input end of the liquid crystal tunable filter through a D / A converter to change the wavelength channel of the liquid crystal tunable filter. According to the temperature measuring system, to solve the problem of thermal radiation radiated by a surface of an object to be measured, through a signal collection system of thetemperature measuring system, rapidly measuring a plurality of wavelength spectral information is realized. After converted by the A / D converter, the temperature value of the object is computed and obtained, so temperature measurement of the multi-spectrum is achieved with accurate measuring outcomes and easy operation.
Description
technical field [0001] The invention relates to the field of high temperature, and more specifically, relates to a temperature measurement system and a temperature measurement method based on multi-spectrum. Background technique [0002] In order to meet the measurement requirements of the temperature field of high-temperature objects and promote the development of the field of high-temperature measurement, researchers at home and abroad have begun to conduct research on related temperature measurement technologies. Research in the field of multi-spectral radiation temperature measurement started earlier in foreign countries. The development of multi-wavelength pyrometers and the research on multi-spectral temperature measurement can be traced back to the 1950s. In 1954, Pyatt proposed the idea of multi-spectral temperature measurement through the research on the dichromatic spectral radiation pyrometer and the analysis of the brightness error of the thermometer. In 1979,...
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IPC IPC(8): G01J5/20G01J5/08
CPCG01J5/20G01J5/08021Y02A90/10
Inventor 金星胡聪夏伟
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)