Gas and/or flame imaging system with explosion proof housing
First Claim
1. A gas imaging system for remotely detecting gas emissions by passive images of infrared radiation, comprising:
- an explosion proof housing structure configured to contain explosive conditions within the housing structure so as to not ignite a surrounding environment in which the gas imaging system is installed, the housing structure including an optical window fabricated of a mechanically strong, infrared transmissive material mounted on the housing structure to pass infrared radiation into the housing structure;
an optical system having a field of view and including a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located in a fixed position at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation;
a multi-spectral image processing system configured for processing the image data produced by the photosensitive array to detect hazardous gas emissions and to discriminate against infrared radiation emitted by false alarm sources; and
wherein the optical system and image processing system are disposed within the explosion proof housing structure.
2 Assignments
0 Petitions
Accused Products
Abstract
A gas imaging system for remotely detecting gas emissions by passive images of infrared radiation includes an optical system having a field of view. The optical system has a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation. A multi-spectral image processing system is configured for processing the image data produced by the photosensitive array to detect hazardous gas emissions and to discriminate against infrared radiation emitted by false alarm sources. Some embodiments may be configured for flame detection. Other embodiments may be configured for gas and flame detection.
34 Citations
45 Claims
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1. A gas imaging system for remotely detecting gas emissions by passive images of infrared radiation, comprising:
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an explosion proof housing structure configured to contain explosive conditions within the housing structure so as to not ignite a surrounding environment in which the gas imaging system is installed, the housing structure including an optical window fabricated of a mechanically strong, infrared transmissive material mounted on the housing structure to pass infrared radiation into the housing structure; an optical system having a field of view and including a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located in a fixed position at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation; a multi-spectral image processing system configured for processing the image data produced by the photosensitive array to detect hazardous gas emissions and to discriminate against infrared radiation emitted by false alarm sources; and wherein the optical system and image processing system are disposed within the explosion proof housing structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A stationary gas imaging system for remotely detecting gas emissions by passive images of infrared radiation, comprising:
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an explosion proof housing structure including an optical window fabricated of a mechanically strong, infrared transmissive material to pass infrared radiation into the housing structure; an optical system having a field of view and including a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation; a multi-spectral image processing system configured for processing the image data produced by the photosensitive array to detect hazardous gas emissions and to discriminate against infrared radiation emitted by false alarm sources; and wherein the optical system and image processing system are disposed within the explosion proof housing structure; and wherein the system operates in a fixed installation in a hazardous environment. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A gas or flame imaging system for remotely detecting gas or flame emissions by passive images of infrared radiation, comprising:
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an explosion proof housing structure configured to contain explosive conditions within the housing structure so as to not ignite a surrounding environment in which the gas imaging system is installed, the housing structure including an optical window fabricated of a mechanically strong, infrared transmissive material mounted on the housing structure to pass infrared radiation into the housing structure; an optical system having a field of view and including a lens, an optical filter system for filtering light passed through the lens, and a photosensitive array located in a fixed position at the focal plane of the optical system to produce multi-spectral infrared image data of a scene under observation; and a multi-spectral image processing system configured for processing the image data produced by the photosensitive array to detect hazardous gas or flame emissions and to discriminate against infrared radiation emitted by false alarm sources; and wherein the optical system and image processing system are disposed within the explosion proof housing structure. - View Dependent Claims (43, 44, 45)
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Specification