Emissivity probe
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United States of America Patent
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Jun 21, 2005
Grant Date -
Feb 19, 2004
app pub date -
Aug 13, 2002
filing date -
Aug 13, 2002
priority date (Note) -
Expired
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Abstract
An emissivity probe for measuring reflected energy from interior wall surfaces of large scale boilers. The emissivity probe uses a pair of light guides which respectively receive light energy from the interior of the boiler and that reflected off a wall surface. Using appropriate photo detectors sensitive to a desired light wavelength range, a ratio of the reflected and incident radiation is provided. This provides a measure of the reflectivity of the wall surface. The reflectivity values are used to control boiler cleaning systems.
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