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Title: Active radiometer for self-calibrated furnace temperature measurements

A radiometer is described with a probe beam superimposed on its field-of-view for furnace temperature measurements. The radiometer includes a heterodyne millimeter/submillimeter-wave receiver including a millimeter/submillimeter-wave source for probing. The receiver is adapted to receive radiation from a surface whose temperature is to be measured. The radiation includes a surface emission portion and a surface reflection portion which includes the probe beam energy reflected from the surface. The surface emission portion is related to the surface temperature and the surface reflection portion is related to the emissivity of the surface. The simultaneous measurement of surface emissivity serves as a real time calibration of the temperature measurement. 5 figs.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
403659
Assignee:
Electro-Pyrolysis, Inc., Wayne, PA (United States); Massachusetts Inst. of Tech., Cambridge, MA (United States); Battelle Memorial Inst., Richmond, WA (United States) PTO; SCA: 440500; PA: EDB-97:004285; SN: 96001695598
Patent Number(s):
US 5,573,339/A/
Application Number:
PAN: 8-181,706
Contract Number:
AC06-76RL01830
Resource Relation:
Other Information: PBD: 12 Nov 1996
Research Org:
Battelle Memorial Institute
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; RADIOMETERS; DESIGN; CALIBRATION; FURNACES; TEMPERATURE MEASUREMENT; OPERATION; SURFACE PROPERTIES

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