Metals & Alloys

Fluke Calibrator Video

October 24, 2010

Emissivity makes a temperature difference for infrared thermometers. In the YouTube video below, Frank Liebman, an engineer with Fluke Corporation’s Hart Scientific Division demonstrates the impact that surface emissivity has on temperature measurement and temperature calibration using a modified Fluke blackbody calibrator and Fluke Thermal Imager. We were surprised to see that no one commented [...]

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What The Heck is Emissivity? (Part 2)

October 22, 2010

Fill up two soda cans with hot water and wrap Flagyl ER one in scotch tape. Which one will cool down faster? Obvious, right? Check it out, you might be surprised! From the ITC Channel at YouTube.com

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What the Heck is (Spectral) Emissivity?

February 10, 2010

Part One of Two from the mind of FLIR It health partners pharmacies starts: Fill two soda cans with hot water and wrap one with scotch tape. Which one will radiate more heat? You might be surprised at the answer (It has all to do with Spectral Emissivity, although this video continues the illusion that [...]

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ASTM E307 – 72(2008) Standard Test Method for Normal Spectral Emittance

December 8, 2009

At Elevated Temperatures Developed by ASTM Subcommittee: E21.04, on Space Simulation Test Methods, and in the Annual Book of ASTM Standards, Volume 15.0 Space Simulation; Aerospace and Aircraft; Composite Materials Quoting from the standard’s Scope: 1. Scope 1.1 This test method describes a highly accurate technique for measuring the normal spectral emittance of electrically conducting [...]

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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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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 [...]

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