NDLI: Survey of dual waveband colorimetric temperature measurement technology

Content Provider	IEEE Xplore Digital Library
Author	Ren Yan Zhou Xiaomin Fu Li
Copyright Year	2014
Description	Author affiliation: Sch. of Autom., Shenyang Aerosp. Univ., Shenyang, China (Ren Yan; Zhou Xiaomin; Fu Li)
Abstract	Radiation thermometry is one of the important ways to obtain target temperature, which mainly includes dual-waveband colorimetric temperature measurement. The precision is limited by atmospheric transmittance and the air path radiation when infrared signature of a target measured in the atmosphere. To increase the precision, a correction-based dual-waveband color comparison thermometric method is presented, which puts a reference blackbody next to the target for comparison. Due to colorimetric temperature measurement curve is non-linear, a new method that uses piecewise linear method to fit it, which uses the zero point of first derivative of absolute error that determine the maximum error. It has fewer segments and high fitting precision. Non-contact temperature measurement which uses the two-color thermometry based on CCD image sensor is recently presented. The main error sources come from the change in emissivity of a measured object with the wavelength and the non-ideal CCD spectrum response characteristic. Thus, an improved method is proposed, which is independent of the spectroscopic characteristics and the representative wavelengths of the CCD.
Starting Page	5177
Ending Page	5181
File Size	154273
Page Count	5
File Format	PDF
ISBN	9781479937073
e-ISBN	9781479937080
DOI	10.1109/CCDC.2014.6853104
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-31
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Charge coupled devices Blackbody Accuracy Atmospheric measurements Image color analysis Wavelength measurement Detectors CCD image sensor Non-linear Correction Colorimetric method Real-time correction
Content Type	Text
Resource Type	Article

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