Diagnostics of materials in high-temperature, optically inaccessible environments can be reliably achieved with millimeter-wave methods and components. A 137 GHz heterodyne receiver using a thermal return reflection (TRR) technique and ceramic waveguides tested to 1500/spl deg/C have been used to demonstrate the capability to measure temperature, emissivity, viscosity, and salt layer formation in laboratory and pilot scale melter tests.
Millimeter wave diagnostics of materials and melts
2004-01-01
156131 byte
Conference paper
Electronic Resource
English
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