Thermal-infrared scale verifications at 10 μm using the NIST EOS TXR

Rice, Joseph P.; Bender, Steven C.; Atkins, W.H.

doi:10.1117/12.494211

Cited by 3 publications

(2 citation statements)

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“…The metal freezing point blackbody does not need calibration before use, and has high absolute temperature measurement accuracy and high emissivity [1]. However, because the structure and operation of this type of blackbody are very complex and expensive, The metal freezing point blackbody is generally only used to establish primary standard instead of being used as onsite calibration light source for infrared photoelectric system [2]. Commercial blackbody generally adopts indirect measurement method.…”

Section: Introductionmentioning

confidence: 99%

Design of infrared transfer standard radiometer for medium and low temperature blackbody calibration

Zhang

Yu²,

Wang³

et al. 2022

International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022)

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As a standard light source, medium and low temperature blackbody is widely used in the field of quantitative infrared remote sensing, so it is urgent to improve its calibration accuracy. This paper studies the calibration method of medium and low temperature blackbody radiation temperature based on standard transfer detector, and designs a dual channel thermal infrared transfer standard radiometer. The radiometer adopts optical path structure with achromatic off-axis reflection, its optical mechanical system is placed in liquid nitrogen refrigeration vacuum Dewar, and an optical chopper is used to improve the systematic noise ratio. Finally, through the correction experiment of commercial blackbody radiation temperature, we found that there is a certain deviation at different temperature points, and its maximum value is 3.22k. The results prove the effectiveness of the design.

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Section: Introductionmentioning

confidence: 99%

Design of infrared transfer standard radiometer for medium and low temperature blackbody calibration

Zhang

Yu²,

Wang³

et al. 2022

International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022)

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“…radiance values. In July 1999 and August 2001, it was deployed to the remote sensing radiometric calibration facility at Los Alamos National Laboratory (LANL) in support of DOE programs [71,72]. In July 2001, the TXR was deployed to the GOES-Imager radiometric calibration chamber at ITT in Ft. Wayne, Indiana [73].…”

Section: The Radiometric Calibration Of Thermal Infrared Remote Sensimentioning

confidence: 99%

10. The Calibration and Characterization of Earth Remote Sensing and Environmental Monitoring Instruments

Butler

Johnson

Barnes

2005

Experimental Methods in the Physical Sciences

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The Miami2001 Infrared Radiometer Calibration and Intercomparison. Part I: Laboratory Characterization of Blackbody Targets

Rice

Butler

Johnson

et al. 2004

J. Atmos. Oceanic Technol.

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The second calibration and intercomparison of infrared radiometers (Miami2001) was held at the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS) during May-June 2001. The participants were from several groups involved with the validation of skin sea surface temperatures and land surface temperatures derived from the measurements of imaging radiometers on earth observation satellites. These satellite instruments include those currently on operational satellites and others that will be launched within two years following the workshop. There were two experimental campaigns carried out during the 1week workshop: a set of measurements made by a variety of ship-based radiometers on board the Research Vessel F. G. Walton Smith in Gulf Stream waters off the eastern coast of Florida, and a set of laboratory measurements of typical external blackbodies used to calibrate these ship-based radiometers. This paper reports on the results obtained from the laboratory characterization on blackbody sources. A companion paper reports on the at-sea measurements. Five blackbody sources were intercompared by measurements of their brightness temperature using the National Institute of Standards and Technology (NIST) Thermal-infrared Transfer Radiometer (TXR). Four of these sources are used for calibration of sea surface temperature radiometers. The fifth was a NIST water bath blackbody used for calibration of the TXR. All blackbodies agreed to better than Ϯ0.1ЊC at blackbody temperatures near the ambient room temperature. Some of the blackbodies had reduced effective emissivity relative to the NIST water bath blackbody, and hence they began to disagree at blackbody temperatures far enough away (Ͼ15ЊC) from the ambient room temperature. For these, relative effective emissivity values were determined so that corrections can be applied if they are used in conditions of nonlaboratory ambient temperatures.

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Thermal-infrared scale verifications at 10 μm using the NIST EOS TXR

Cited by 3 publications

References 0 publications

Design of infrared transfer standard radiometer for medium and low temperature blackbody calibration

Design of infrared transfer standard radiometer for medium and low temperature blackbody calibration

10. The Calibration and Characterization of Earth Remote Sensing and Environmental Monitoring Instruments

The Miami2001 Infrared Radiometer Calibration and Intercomparison. Part I: Laboratory Characterization of Blackbody Targets

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