Title :
Millimeter wave diagnostics of materials and melts
Author :
Sundaram, S.K. ; Woskov, P.P. ; Daniel, W.E., Jr.
Author_Institution :
Pacific Northwest Nat. Lab., Richland, WA, USA
fDate :
27 Sept.-1 Oct. 2004
Abstract :
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°C have been used to demonstrate the capability to measure temperature, emissivity, viscosity, and salt layer formation in laboratory and pilot scale melter tests.
Keywords :
ceramics; emissivity; millimetre wave measurement; millimetre wave receivers; temperature measurement; viscosity measurement; waveguides; 137 GHz; 1500 degC; ceramic waveguides; emissivity; heterodyne receiver; material diagnostics; millimeter wave diagnostics; pilot scale melter tests; salt layer formation; thermal return reflection; viscosity; Materials reliability; Millimeter wave measurements; Millimeter wave technology; Optical devices; Optical materials; Optical mixing; Optical receivers; Optical waveguides; Temperature measurement; Testing;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422336
