NDLI: Emissivity measurement for low emissivity objects by two blackbody tube methods

Content Provider	IEEE Xplore Digital Library
Author	Yuan Rong Hongbo Su Renhua Zhang Yongmin Yang
Copyright Year	2012
Description	Author affiliation: Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing,100101, China (Yuan Rong; Hongbo Su; Renhua Zhang; Yongmin Yang)
Abstract	Emissivity is not only an essential parameter for land surface temperature retrieval in remote sensing, but also a characteristic parameter to measure the ability of target's thermal infrared radiation. Field measurement of emissivity is a challenging task, but one special feature is that it can obtain high accuracy of the emissivity. The Model 102 Portable Fourier Transform Infrared Spectrometer(Model 102FTIR spectrometer) [1] developed by Designs and Prototypes has less stray radiation, a wide spectral range, high resolution, however, it is very hard to measure the emissivity of objects with low emissivity such as aluminum. Two methods to measure the emissivity proposed by Zhang in 1985[2].In this paper, we use them based on the Model 102FTIR spectrometer and the blackbody tube to measure the low emissivity objects [2]. To evaluate the methods, marble, board, and aluminum are chosen as the samples which have respectively high, medium and low emissivity. Though the instant environment irradiance is changed, the real irradiance of the sample remains unchanged [3], the radiance temperature and emissivity separation algorithm are used to obtain the true emissivity curves of these samples. The emissivity curve of marble measured by the blackbody tube method matches very well with that measured by the instrument, which proves the feasibility of our methods. Meanwhile, low emissivity objects like aluminum meet the emission features in reality.
Starting Page	6122
Ending Page	6125
File Size	429204
Page Count	4
File Format	PDF
ISBN	9781467311601
ISSN	21536996
e-ISBN	9781467311595
e-ISBN	9781467311588
DOI	10.1109/IGARSS.2012.6352209
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature measurement Aluminum Remote sensing Mathematical model Electron tubes Equations Instruments the blackbody tube method emissivity Model 102FTIR spectrometer
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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