FLAME SENSOR INTEGRITY MONITORING
First Claim
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1. A flame detector comprising:
- a medium wavelength infrared bolometer having an array of pixel elements disposed within a housing;
optics supported by the housing and disposed with respect to the bolometer to direct infrared radiation from a flame to the pixel elements of the array and to direct radiation from a separate background object to the pixel elements of the array; and
electronics coupled to receive signals from the bolometer and programmed to track an intensity of radiation from the background object to monitor transmission of radiation through the optics.
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Abstract
A flame detector includes a medium wavelength infrared bolometer having an array of pixel elements disposed within a housing. Optics supported by the housing and disposed with respect to the bolometer direct infrared radiation from a flame to the pixel elements of the array and direct radiation from a separate background object to the pixel elements of the array. Electronics are coupled to receive signals from the bolometer and programmed to track an intensity of radiation from the background object to monitor transmission of radiation through the optics.
21 Citations
20 Claims
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1. A flame detector comprising:
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a medium wavelength infrared bolometer having an array of pixel elements disposed within a housing; optics supported by the housing and disposed with respect to the bolometer to direct infrared radiation from a flame to the pixel elements of the array and to direct radiation from a separate background object to the pixel elements of the array; and electronics coupled to receive signals from the bolometer and programmed to track an intensity of radiation from the background object to monitor transmission of radiation through the optics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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sensing radiation received through optics using a mid-wavelength infrared bolometer array of pixels with a portion of a field of view of the bolometer to sense a flame; sensing background radiation via the bolometer within the field of view of the bolometer; and detecting a change of intensity of the sensed background radiation. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A computer readable storage device having instructions for causing a computer to execute a method, the method comprising:
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receiving data representing sensed radiation received through optics using a mid-wavelength infrared bolometer array of pixels with a portion of a field of view of the bolometer to sense a flame; receiving data representative of sensed background radiation via the bolometer within the field of view of the bolometer; and calculating a change of intensity of the sensed background radiation. - View Dependent Claims (18, 19, 20)
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Specification