| Popis: |
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. |
