Achromatic and Athermal Design of Aerial Catadioptric Optical Systems by Efficient Optimization of Materials

Li, Jing; Ding, Yuehua; Liu, Xueji; Yuan, Guodong; Cai, Yiming

doi:10.3390/s23041754

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…In response, the development of ice detection systems has become a key area in aviation technology. Traditional systems, ranging from mechanical methods to thermal and optical methods, have provided foundational information but often face limitations in terms of response time, sensitivity, and applicability under diverse flight conditions [4,5].…”

Section: Introductionmentioning

confidence: 99%

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Farina,

Mazio,

Machrafi

et al. 2024

Micromachines

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In the context of improving aircraft safety, this work focuses on creating and testing a graphene-based ice detection system in an environmental chamber. This research is driven by the need for more accurate and efficient ice detection methods, which are crucial in mitigating in-flight icing hazards. The methodology employed involves testing flat graphene-based sensors in a controlled environment, simulating a variety of climatic conditions that could be experienced in an aircraft during its entire flight. The environmental chamber enabled precise manipulation of temperature and humidity levels, thereby providing a realistic and comprehensive test bed for sensor performance evaluation. The results were significant, revealing the graphene sensors’ heightened sensitivity and rapid response to the subtle changes in environmental conditions, especially the critical phase transition from water to ice. This sensitivity is the key to detecting ice formation at its onset, a critical requirement for aviation safety. The study concludes that graphene-based sensors tested under varied and controlled atmospheric conditions exhibit a remarkable potential to enhance ice detection systems for aircraft. Their lightweight, efficient, and highly responsive nature makes them a superior alternative to traditional ice detection technologies, paving the way for more advanced and reliable aircraft safety solutions.

show abstract

Section: Introductionmentioning

confidence: 99%

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Farina,

Mazio,

Machrafi

et al. 2024

Micromachines

View full text Add to dashboard Cite

show abstract

“…In response, the development of ice detection systems has become a key area in aviation technology. Traditional systems, ranging from mechanical methods to thermal and optical methods, have provided foundational information, but often face limitations in terms of response time, sensitivity, and applicability under diverse flight conditions [5,6].…”

Section: Introductionmentioning

confidence: 99%

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Farina,

Mazio,

Machrafi

et al. 2024

Preprint

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In the context of improving aircraft safety, this study focuses on the development and evaluation of a graphene-based ice detection system using an environmental chamber. The research is driven by the need for more accurate and efficient ice detection methods, crucial in mitigating in-flight icing hazards. The methodology employed involves testing flat graphene-based sensors in a controlled environment, simulating a variety of climatic conditions that could be experienced in an aircraft during its entire flight. The environmental chamber enabled precise manipulation of temperature and humidity levels, thereby providing a realistic and comprehensive test bed for sensor performance evaluation. The results were significant, revealing the graphene sensors’ heightened sensitivity and rapid response to the subtle changes in environmental conditions, especially the critical phase transition from water to ice. This sensitivity is the key to detecting ice formation at its onset, a critical requirement for aviation safety. The study concludes that graphene-based sensors, tested under varied and controlled atmospheric conditions, exhibit a remarkable potential in enhancing ice detection systems for aircraft. Their lightweight, efficient and highly responsive nature makes them a superior alternative to traditional ice detection technologies, paving the way for more advanced and reliable aircraft safety solutions.

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Athermalization of a lens system by glass selection using simulated annealing with memory augmentation

Jiang,

Liu

2024

Opt. Express

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In contrast to the current athermal map's lack of intuitiveness, we introduce a novel composite athermal map to visually evaluate the potential of lens system glass materials in achieving athermal and achromatic designs. Furthermore, unlike graphically manual methods for athermalization, we propose an automatic method to athermalize the optical system by glass selection using simulated annealing with memory augmentation (GlaSAM). This method employs a comprehensive objective function that integrates thermal aberration, chromatic aberration, secondary spectrum aberration, and Petzval curvature aberration. Weight factors are introduced to evaluate each aberration in the function, and filters are applied to streamline the search space. Additionally, the augmentation of memory into the optimization algorithm not only enhances its efficiency but also safeguards against overlooking solutions with superior imaging quality. To test the advantage of the GlaSAM method, a complex telephoto design is optimized to function across a temperature range from -40°C to 70°C, and the results demonstrate the efficacy of athermalizing the lens system while preserving exceptional imaging performance through this proposed method.

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Achromatic and Athermal Design of Aerial Catadioptric Optical Systems by Efficient Optimization of Materials

Cited by 4 publications

References 20 publications

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Environmental Chamber Characterization of an Ice Detection Sensor for Aviation Using Graphene and PEDOT:PSS

Athermalization of a lens system by glass selection using simulated annealing with memory augmentation

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