Applications of pulsed-laser techniques and thermographic phosphors to dynamic thermometry of rotating surfaces
Abstract
Stimulating fluorescence by synchronous application of pulsed ultraviolet laser light is used to measure surface temperatures of rotating objects. The temperature dependence of the lifetime of selected emission lines from a phosphor bonded to the surface provides temperature resolution in the room temperature range of about 0.3 deg C. The experimental technique includes fiber optics transfer of stimulating and signal light, timing circuitry, photomultiplier electronics, and waveform processing.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 1985
- Bibcode:
- 1985STIN...8616564C
- Keywords:
-
- Fluorescence;
- Rotating Bodies;
- Surface Temperature;
- Temperature Measurement;
- Ultraviolet Lasers;
- Fiber Optics;
- Phosphors;
- Photomultiplier Tubes;
- Temperature Dependence;
- Waveforms;
- Lasers and Masers