Two-dimensional thermography using La{sub 2}O{sub 2}S:Eu and Y{sub 2}O{sub 2}S:Eu thermal phosphors

Technical Report · Fri Nov 01 00:00:00 EST 1991

DOI:https://doi.org/10.2172/10116210· OSTI ID:10116210

Taliaferro, J M; Allison, S W; Tobin, K W

This report describes efforts to obtain two-dimensional temperature profiles of aerodynamic surfaces by using imaging techniques in conjunction with fluorescence thermometry. The fluorescence of several temperature sensitive phosphors were observed by using an image-intensified, charge coupled device (CCD) camera. The intensity profile of the image for two emission wavelengths was stored and processed to yield temperature profiles of a coated specimen. The best results were obtained with oxysulfide phosphors, which showed temperature dependence from ambient to 200{degree}C. The temperature resolution was about 0.5%C at ambient. 3 refs.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States); USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400; W-7405-ENG-36
• OSTI ID: 10116210
• Report Number(s): ORNL/ATD-61; ON: DE92006867
• Resource Relation: Other Information: PBD: Nov 1991
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
36 MATERIALS SCIENCE
THERMOGRAPHY
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INORGANIC PHOSPHORS
FLUORESCENCE
TEMPERATURE MEASUREMENT
YTTRIUM OXIDES
LANTHANUM SULFIDES
EUROPIUM IONS
DOPED MATERIALS
ALUMINIUM
SUBSTRATES
TEMPERATURE DEPENDENCE
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360606
THERMAL INSTRUMENTATION
PHYSICAL PROPERTIES