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Optical Engineering

Transient response of least-squares-based multiwavelength pyrometers
Author(s): R. Erik Spjut
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Paper Abstract

The transient response of least-squares-based multiwavelength pyrometers to rapid temperature changes is modeled. Results are presented for a one-parameter and a four-parameter linear least-squares pyrometer with 31 wavelengths from 500 to 800 nm. The one-parameter response is very similar to the transient response of a two-color pyrometer. The response is more rapid than expected when the target temperature is rising and slower than expected when the target temperature is falling. The four-parameter pyrometer can overfit and indicate erroneous temperatures.

Paper Details

Date Published: 1 May 1993
PDF: 5 pages
Opt. Eng. 32(5) doi: 10.1117/12.130261
Published in: Optical Engineering Volume 32, Issue 5
Show Author Affiliations
R. Erik Spjut, Harvey Mudd College (United States)


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