Instrument for temperature and condition monitoring of advanced turbine blades
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United States of America Patent
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Issued Date -
Sep 16, 2004
app pub date -
Jan 12, 2004
filing date -
Jan 23, 2003
priority date (Note) -
Abandoned
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Abstract
An on-engine radiation thermometer that simultaneously measures, through a common optical waveguide probe, long wavelength infrared radiation and short wavelength radiation, enables accurate temperature measurement and condition monitoring of ceramic thermal barrier coatings used on metal blades of gas turbine engines. This in turn enables operation at higher combustion temperatures, thereby optimizing coating use, and provides warning signals that are indicative of potential blade failure due to barrier coating spall and other conditions.
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