Thermographic application of black coatings on metals

Legaie, D.; Pron, H.; Bissieux, C.; Blain, V.

doi:10.21611/qirt.2008.15_08_12

Cited by 5 publications

(1 citation statement)

References 17 publications

(18 reference statements)

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“…We note that a typical spray coating has a thickness variation of the order 5 mm, although we do not expect this to influence our results for the temperature regimes in which the CASOTS-II blackbody operates. Obtaining information on the thermal conductivity of thin paint layers is challenging (e.g., Legaie et al 2008) and we assume a worst-case approximation for the thermal conductivity of NEXTEL suede 3103 paint of 0.0009 W (cm K) 21 based on the value published by Fowler (1995). Considering the net effective exchange between the whole painted cavity wall and the ambient external environment viewed through the cavity aperture,…”

Section: E Temperature Drop Across the Cavity Wall And Paintmentioning

confidence: 99%

A Second-Generation Blackbody System for the Calibration and Verification of Seagoing Infrared Radiometers

Donlon

Wimmer

Robinson

et al. 2014

Journal of Atmospheric and Oceanic Technology

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Quasi-operational shipborne radiometers provide a fiducial reference measurement (FRM) for satellite validation of satellite sea surface skin temperature (SST skin ) retrievals. External reference blackbodies are required to verify the performance and to quantify the accuracy of the radiometer calibration system. They provide a link in an unbroken chain of comparisons between the shipborne radiometer and a traceable reference standard. A second-generation water bath blackbody reference radiance source has been developed for this purpose. The second generation Concerted Action for the Study of the Ocean Thermal Skin (CASOTS-II) blackbody has a 110-mm-diameter aperture cylinder-cone geometry coated with NEXTEL suede 3103 paint. Interchangeable aperture stops reduce the cavity aperture diameter and minimize stray radiation. Monte Carlo modeling techniques show the effective emissivity of the cavity to be .0.9999 (aperture , 30 mm). The cavity is immersed in a water bath that is vigorously stirred using a pump that slowly heats the water bath at a mean rate of ;0.6 K h 21. The temperature of the water bath is measured using a thermometer traceable to the International System of Units (SI) standards. The worst-case radiance temperature of the CASOTS-II blackbody system is traceable to the SI with an uncertainty of 58 mK (millikelvin). When operating under typical laboratory conditions using an aperture of 40 mm, the uncertainty is 16 mK. An intercomparison with the U.K. National Physical Laboratory Absolute Measurements of Blackbody Emitted Radiance (AMBER) reference radiometer found no significant differences within 75 mK (110-mm aperture) or 50 mK (40-mm aperture), which is the combined uncertainty of the comparison and the reference standard for SI traceability of ISAR radiometer SST skin records used for satellite SST validation. Applications of the CASOTS-II blackbody to monitor the calibration of shipborne radiometers are described and measurement protocols are proposed.

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Section: E Temperature Drop Across the Cavity Wall And Paintmentioning

confidence: 99%

A Second-Generation Blackbody System for the Calibration and Verification of Seagoing Infrared Radiometers

Donlon

Wimmer

Robinson

et al. 2014

Journal of Atmospheric and Oceanic Technology

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Solving the Inverse Heat Conduction Problem in Using Long Square Pulse Thermography to Estimate Coating Thickness by Using SVR Models Based on Restored Pseudo Heat Flux (RPHF) In-Plane Profile

Wang

Hsieh

2018

J Nondestruct Eval

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Determination of Local Thermophysical Properties and Heat of Transition from Thermal Fields Measurement During Drop Calorimetric Experiment

et al. 2014

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This paper proposes a non-contact original method to estimate local thermophysical properties (heat capacity and thermal conductivity) and heats of transition from plane thin specimens. This method is based on measurement of temperature fields with an infrared camera during a drop calorimetric experiment. A studied specimen and a reference specimen, with similar geometries, are simultaneously tested. Firstly, the method is validated by estimating heat capacity and thermal conductivity of Vanadium specimens and by comparing the determined values with those obtained by Differential Scanning Calorimetry and by a laser flash method, respectively. Secondly, the method is used to determine latent heats of martensitic transformations. Delobelle et al, Exp. Mech., Exp. Mech., 55, pp 711-723, 2015 dance with results obtained by Differential Scanning Calorimetry.

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Thermographic application of black coatings on metals

Cited by 5 publications

References 17 publications

A Second-Generation Blackbody System for the Calibration and Verification of Seagoing Infrared Radiometers

A Second-Generation Blackbody System for the Calibration and Verification of Seagoing Infrared Radiometers

Solving the Inverse Heat Conduction Problem in Using Long Square Pulse Thermography to Estimate Coating Thickness by Using SVR Models Based on Restored Pseudo Heat Flux (RPHF) In-Plane Profile

Determination of Local Thermophysical Properties and Heat of Transition from Thermal Fields Measurement During Drop Calorimetric Experiment

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