Multispectral pyrometry for insulating material emissometry

Michael E. Thomas; Milton J. Linevsky

doi:10.1117/12.326659

8 October 1998 Multispectral pyrometry for insulating material emissometry

Michael E. Thomas, Milton J. Linevsky

Proceedings Volume 3425, Optical Diagnostic Methods for Inorganic Transmissive Materials; (1998) https://doi.org/10.1117/12.326659
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

A multispectral pyrometric technique has been developed for obtaining the temperature of many insulating materials which makes use of infrared spectral measurements in the two phonon region of these materials. In the two phonon region the emissivity is virtually temperature independent and the approach developed here requires only a single calibration point. The technique has been found to be simple, convenient, and accurate. A sensitivity of +/- 2 degrees Kelvin at 1000 K is demonstrated on an emission spectrum of sapphire.

Citation Download Citation

Michael E. Thomas and Milton J. Linevsky "Multispectral pyrometry for insulating material emissometry", Proc. SPIE 3425, Optical Diagnostic Methods for Inorganic Transmissive Materials, (8 October 1998); https://doi.org/10.1117/12.326659

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