Environmental Stability Design of the Aerial Mapping Camera Based on Multi-Dimensional Compound Structure.

Area of Science:

• Optics and Photonics
• Aerospace Engineering
• Environmental Control Systems

Background:

• Traditional environmental stability methods for aerial mapping cameras often induce radial temperature differences and fail to mitigate pressure changes.
• Direct thermal design in optical systems can compromise geometric stability and image quality.

Purpose of the Study:

• To propose and validate a multi-dimensional structure for enhanced environmental stability in aerial mapping cameras.
• To overcome limitations of traditional methods in managing thermal stress and pressure variations.

Main Methods:

• Designing the aerial mapping camera with an imaging core and a peripheral sealing cylinder, creating a sealed air insulation sandwich.
• Implementing a reserved thermal interface to prevent direct heating of optical components, forming a multi-dimensional environmental stability structure.
• Conducting theoretical analysis, thermal simulations, and flight verification of the proposed design.

Main Results:

• The multi-dimensional structure achieved a thermal control power of 240 W.
• The optical system exhibited a thermal gradient of less than 5 °C and a radial temperature difference of less than 0.5 °C.
• High-quality images and accurate ground measurements were obtained, validating the method's effectiveness.

Conclusions:

• The proposed multi-dimensional structure offers superior accuracy and lower power consumption compared to traditional thermal control methods.
• This approach effectively reduces the power requirements and complexity of thermal control for aerial mapping cameras.
• The technology ensures stable geometric parameters and high image resolution in complex aviation environments.