Portable Fourier transform infrared spectroradiometer for field measurements of radiance & emissivity

February 24, 2009

By Andrew R. Korb, Peter Dybwad, Winthrop Wadsworth, and John W. Salisbury
ABSTRACT
A hand-held, battery-powered Fourier transform infrared spectroradiometer weighing 12.5 kg has been developed for the field measurement of spectral radiance from the Earth’s surface and atmosphere in the 3–5-µm and 8–14-µm atmospheric windows, with a 6-cm21 spectral resolution. Other versions of this instrument measure [...]

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Global Infrared Land Surface Emissivity:

February 12, 2009

UW-Madison Baseline Fit Emissivity Database

From the University of Wisconsin CIMSS data section: http://cimss.ssec.wisc.edu/iremis/
This global database of infrared land surface emissivity is derived using input from the Moderate Resolution Imaging Spectroradiometer (MODIS) operational land surface emissivity product (MOD11). The baseline fit method (Seemann et al., 2007), based on a conceptual model developed from laboratory measurements [...]

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Thermophysical properties and normal spectral emittance of Iridium up to 3500 K

February 9, 2009

“Thermophysical properties and normal spectral emittance of Iridium up to 3500 K”,
International Journal of Thermophysics Vol. 28(2), p. 697-710, http://dx.doi.org/10.1007/s10765-007-0188-9, (2007) by C. Cagran, G. Pottlacher
C. Cagran1 and G. Pottlacher1 Contact Information
(1) Institute of Experimental Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria
Published online: 10 May 2007
“An ohmic pulse-heating experiment together with [...]

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Modeling of the thermal radiative behavior of rough coatings

January 6, 2009

Abstract 675 – Monte Carlo modeling of the thermal radiative behavior of rough coatings
Presented in the session Photothermal Techniques. Theory and Modeling at the 18th European Conference on Thermophysical Properties, Pau, France 31 Aug-4 Sep 2008
By:
Mr Hector Gomarta*+
Dr Benoit Rousseaua
Dr Domingos De Sousa Menesesa
Dr Patrick Echeguta
a CNRS Orléans
CEMHTI
Site Haute Température
1D avenue de la Recherche [...]

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Handbook of OSML Libraries: Emittance

December 26, 2008

CRMHT – CNRS Centre de Recherche sur les Matériaux à Haute Température, Orléans, France
Mesure indirecte de l’émittance (Includes sample data for Silicon Dioxide)
Mesure de la réflectivité et de la transmissivité normales spectrales (10 à 40 000 cm-1 soit 1 000 à 0,25 µm).
L’émissivité normale spectrale se déduit indirectement par calcul de ces deux grandeurs par [...]

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Emissivity Calculator Online

December 12, 2008

The Pyrometer Instrument Company, manufacturers of the Pyrolaser® and Pyrofiber® products, among others, have a unique, online emissivity calculator that enables one to calculate the temperature measurement effect of: wavelength, emissivity setting and temperature for Infrared measurement wavelength bands ranging from 0.655 micrometer to 10.6 micrometers.
You can access the calculator by CLICKING HERE
(Pyrometer Instrument Company, [...]

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EMISSIVITY EVALUATION OF FIXED POINT BLACKBODIES

December 12, 2008

A paper by Sergey Mekhontsev, Vladimir Khromchenko, Alexander Prokhorov, Leonard Hanssen
National Institute for Standards and Technology, Gaithersburg, MD, USA
Presented at the 9th International Symposium on Temperature and Thermal Measurements in Industry and Science (TEMPMEKO 2004), June 22-25, 2004, Dubrovnik, Croatia, Proceedings, Vol. 1, ed. by D. Zvizdic (2004), pp. 581-586.
ABSTRACT
A new facility for [...]

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IR spectral characterization of customer blackbody sources:

December 5, 2008

“First calibration results”
A paper by S. Mekhontsev, M. Noorma, A. Prokhorov, and L. Hanssen from NIST in the USA, Presented at Thermosense XXVIII, ed. by Jonathan J. Miles, G. Raymond Peacock, and Kathryn M. Knettel, Proc. of SPIE 6205, 620503 (2006).
ABSTRACT:
We summarize recent progress in our infrared (IR) spectral radiance metrology effort. In support of [...]

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Emissivity Coefficients of Some Common Materials

November 25, 2008

We’ve been trying to preach to the inexperienced about Spectral Emissivity vs (just plain) emissivity.
The former is the subject used in Thermal Infrared Radiation Thermometry (Pyrometry, to some) and users of Thermal Infrared Imagers (Thermographic or Thermography Cameras) while the latter is the domain of radiation heat transfer considerations (except of course when spectral [...]

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