Natural Materials

Table of Emissivities in Three Popular Spectral Regions

May 9, 2009

The Table of Emissivity on the INFRAPOINT Messtechnik GmbH website, posted in 2009 (No longer available online) had summary data for a wide variety of materials broken down into three distinct spectral regions for the wavelength regions where the majority of infrared radiation thermometers and Infrared Thermal Imaging cameras operate. First and second are tables [...]

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Temporal variations in the apparent emissivity of various materials

March 4, 2009

Temporal variations in the apparent emissivity of various materials Author: Salvaggio, C.; Miller, D.P. Author URL: www.cis.rit.edu/~cnspci/publications/5425-29.pdf Year: 2004 Abstract: Spectral emissivity measurements gathered in the longwave infrared region of the spectrum during a recent airborne hyperspectral data collection experiment indicated that the spectral emissivity of certain organic polymers changed by as much as 10% [...]

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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 [...]

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A Temperature and Emissivity Separation Algorithm…

July 25, 2008

A Temperature and Emissivity Separation Algorithm for Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Images by: Alan Gillespie, Shuichi Rokugawa, Tsuneo Matsunaga, J. Steven Cothern, Simon Hook, and Anne Kahle Click Here to view or save Manuscript received October 31, 1997. This work was a collaborative effort of the U.S. and Japanese EOS/ASTER instrument [...]

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ET10 Reflectometer Measures Emissivity

March 21, 2008

San Diego CA, USA –Surface Optics’ ET10 measures emissivity values in two most commonly used spectral regions, 3 to 5 and 8 to 12 microns. Its main application is to produce emissivity values for the infrared cameras. Advanced IR cameras require the input of an emissivity value for accurate temperature calculations. The emissivity values obtained [...]

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Systematic Errors in the Measurement of Emissivity Caused by Directional Effects

December 10, 2007

In the Optics InfoBase, by the American Institute of Physics’ Optical Society of America: Authors: Abraham Kribus, Irna Vishnevetsky, Eyal Rotenberg, and Dan Yakir Applied Optics, levitra buy on line Vol. 42, Issue 10, pp. 1839-1846 Keywords (OCIS): (120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors (260.3060) Physical optics : Infrared (300.2140) Spectroscopy [...]

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