Flame detection device and method of detecting flame
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United States of America Patent
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May 4, 2010
Grant Date -
Dec 6, 2007
app pub date -
May 9, 2007
filing date -
May 12, 2006
priority date (Note) -
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Abstract
A device and method for detecting flame using real-time continuous imaging and pattern recognition of infrared (IR) images of a flame region. Infrared emissions radiated from the region pass through a wide field-of-view lens and are detected by a Charged-Coupled Device (CCD) array sensitive to the near IR range. The system then digitizes the image, extracts characteristic parameters from the measurement and stores both the image and characteristic information for pattern recognition. To accomplish the pattern recognition function, the derived real-time characteristics of the current measurement are statistically compared to pre-stored patterns representative of images of radiation emitted from the region while known flame conditions prevail within the region. Based on this comparison, an assessment is made to determine the presence or absence of flame. The characteristic measurements are also used for evaluating the quality of flame.
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