Temperature determination using pyrometry

Patent · 31 December 2001

OSTI ID:874477

Breiland, William G ^[1]; Gurary, Alexander I ^[2]; Boguslavskiy, Vadim ^[3]

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1. Albuquerque, NM
2. Bridgewater, NJ
3. Princeton, NJ

A method for determining the temperature of a surface upon which a coating is grown using optical pyrometry by correcting Kirchhoff's law for errors in the emissivity or reflectance measurements associated with the growth of the coating and subsequent changes in the surface thermal emission and heat transfer characteristics. By a calibration process that can be carried out in situ in the chamber where the coating process occurs, an error calibration parameter can be determined that allows more precise determination of the temperature of the surface using optical pyrometry systems. The calibration process needs only to be carried out when the physical characteristics of the coating chamber change.

• Research Organization: SANDIA CORP
• DOE Contract Number: AC04-94AL85000
• Assignee: Sandia Corporation (Albuquerque, NM)
• Patent Number(s): US 6398406
• OSTI ID: 874477
• Country of Publication: United States
• Language: English

Related Subjects

/374/356/702/
allows
associated
calibration
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chamber
change
changes
characteristics
coating
correcting
determination
determined
determining
emission
emissivity
error
errors
grown
growth
heat
heat transfer
kirchhoffs
law
measurements
method
occurs
optical
parameter
physical
precise
process
pyrometry
reflectance
situ
subsequent
surface
systems
temperature
temperature determination
thermal
transfer