NASA NTRS · 19880000579
Optical Sensor Of High Gas Temperatures
Abstract
Contact pyrometer resists effects of heat, vibration, and moisture. New sensor consists of shielded sapphire rod with sputtered layer of precious metal on end. Metal layer acts as blackbody. Emits radiation having known dependence of spectral distribution with temperature of metal and temperature of hot gas flowing over metal. Fiber-optic cable carries radiation from sapphire rod to remote photodetector.
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Hill, Arthur J.. 1988-12-01. Optical Sensor Of High Gas Temperatures. https://ntrs.nasa.gov/citations/19880000579
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