Method for measuring emissivity of infrared temperature measurement target body
An infrared temperature measurement and measurement method technology, applied in the field of instrument measurement, can solve the problems of low thermocouple accuracy, lag in temperature data comparison, no measurement method, etc., and achieves the effects of low equipment cost, easy implementation and simple measurement method.
Active Publication Date: 2012-06-27
JIUQUAN IRON & STEEL GRP
View PDF4 Cites 16 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Most of the emissivity tables provided in China are the total emissivity value table and spectral emissivity of materials, and there are no measurement methods and related data sets for partial emissivity; (2) The field measurement commonly used by domestic enterprises when applying infrared radiation thermometers The method of temperature thermocouple comparison to obtain the emissivity of the measured sample part: that is, the method of installing the thermocouple temperatu
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] A method for measuring emissivity of an infrared temperature measurement target, comprising the following steps:
[0033] (1) Selection of infrared radiation thermometer: In a standard thermal laboratory with constant temperature and humidity, select an integral single-color or two-color infrared radiation thermometer that has passed the verification of the blackbody furnace as the infrared radiation characteristic of the measured object Test the main equipment.
[0034] in:
[0035] The temperature range of the blackbody furnace is 300-1700°C, the accuracy is ±0.25%, and the effective emissivity is 0.98; the temperature range of the integral single-color or two-color infrared radiation thermometer is 700-1600°C, and its accuracy is better than ± 0.75% FS; repetition accuracy is better than ±0.3% FS; single-color emissivity range is 0.1-1.0, step size is better than 0.01; two-color slope range is 0.85-1.15, step size is better than 0.001; where FS is infrared radiation...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM
Login to view more Abstract
The invention relates to a method for measuring the emissivity of an infrared temperature measurement target body, which includes the following steps: (1), selecting an infrared radiation thermometer; (2) selecting a high-temperature tubular furnace; (3), selecting a temperature measurement standard equipment; (4), extracting and fabricating a sample of the object to be measured; (5), putting the sample of the object to be measured in the high-temperature tubular furnace; (6), keeping the infrared radiation thermometer coaxial with the sample of the object to be measured; (7), adjusting the distance for temperature measurement of the infrared radiation thermometer; (8), arranging a visor provided with an open pore between the sample of the object to be measured and the infrared radiation thermometer; (9), aiming a visual optical aiming system on the infrared radiation thermometer at the sample of the object to be measured; (10), heating the high-temperature tubular furnace and recording the standard temperature T; (12), adjusting the emissivity or gradient value of the infrared radiation thermometer and recording the emissivity or gradient value displayed after being adjusted; and (13), taking the data processing manner of 'equal precision and multiple measurements' to obtain a data set of the partial emissivities of the sample of the object to be measured within a certain temperature range. The method is simple, low in cost and easy to realize.
Description
technical field [0001] The invention relates to the technical field of instrument measurement, in particular to a method for measuring the emissivity of an infrared temperature measurement target. Background technique [0002] The emissivity (also known as emissivity, blackness coefficient, etc.) of various material surfaces is a physical quantity that characterizes the radiation performance of the material surface, and is an important thermophysical parameter. In the application of infrared radiation temperature measurement in industrial production, the measured objects are all non-black bodies. To ensure the accuracy of the infrared radiation temperature measurement system, the emissivity of the material surface within a certain temperature range must be obtained. Radiation thermometers are divided into full radiation thermometers, spectral radiation thermometers, and partial radiation thermometers. The temperature measurement process of total radiation thermometer and s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Application Information
Patent Timeline
Login to view more IPC IPC(8): G01J5/12
Inventor 乔治王林
Owner JIUQUAN IRON & STEEL GRP
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap