Title :
Millimeter-wave radiometer measurement of emissivity and temperature by thermal return reflection (TRR)
Author :
Woskov, P.P. ; Hadidi, K. ; Sundaram, S.K. ; Daniel, W.E., Jr.
Author_Institution :
Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA
Abstract :
A radiometric method for resolving the emissivity, /spl epsiv/, and temperature, T, in thermal emission measurements is derived and experimentally demonstrated. The viewed source´s own emission is utilized as an incoherent probe beam by means of a beamsplitter and return mirror. Measurements of several refractory materials at 137 GHz to 1500/spl deg/C were carried out.
Keywords :
emissivity; millimetre wave detectors; millimetre wave measurement; mirrors; radiometry; temperature measurement; 137 GHz; 1500 C; beamsplitters; emissivity measurement; mm-wave detectors; mm-wave receivers; mm-wave temperature radiometric measurement; noncontact temperature measurement; refractory material measurements; return mirrors; thermal emission measurements; viewed source emission reflected incoherent probe beam; Millimeter wave measurements; Millimeter wave technology; Mirrors; Optical reflection; Optical waveguides; Plasma temperature; Probes; Radiometry; Reflectivity; Temperature measurement;
Conference_Titel :
Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7423-1
DOI :
10.1109/ICIMW.2002.1076159
