Gas Cloud Imager for Quantifying Leak Emissions

The patent replaces expensive, complex cooled focal plane arrays with uncooled focal plane arrays that are simpler, more reliable, and require less maintenance. While uncooled detectors have different performance characteristics, the system achieves effective gas leak detection through the divided-aperture spectral imaging approach and advanced data processing, eliminating the need for costly cryogenic cooling systems.

The patent substitutes the mechanical cooling system with an optical and computational approach. Instead of physically cooling the detector to reduce noise, the system uses the divided-aperture configuration combined with spectral scanning and sophisticated algorithms to achieve accurate gas detection without the mechanical complexity of cooling systems.

The patent divides the aperture into multiple segments, each associated with different spectral bands. This allows simultaneous capture of multiple spectral regions, effectively parallelizing the spectral scanning process. The divided-aperture configuration enables the system to gather spectral information across multiple bands at once, rather than sequentially scanning through each band, thus maintaining high spectral resolution while improving detection speed.

The patent employs periodic spectral scanning where the system cycles through different spectral bands in a structured manner. By combining periodic scanning with the divided-aperture approach and temporal averaging, the system achieves both high spectral resolution and improved productivity, as the periodic nature allows for efficient data collection and processing patterns.

The patent adopts uncooled focal plane arrays that do not require cryogenic cooling systems. These detectors are inherently more reliable as they have no moving parts, no refrigerant requirements, and no complex thermal management systems. The detectors can be easily replaced if needed, and the overall system becomes more robust and suitable for continuous operation in various environmental conditions.

The uncooled detectors are self-sufficient in terms of thermal management, operating at ambient temperatures without requiring external cooling systems. This eliminates the need for complex cooling infrastructure, reduces maintenance requirements, and improves overall system reliability. The detectors automatically adapt to environmental conditions without requiring active thermal control.