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Intelligent multifunctional stealth coating

Author:admin   AddTime:2021-10-11

Smart materials and structures are emerging high-tech fields that have gradually formed and received much attention in the 1980s. This new concept that can adjust its structure and function according to environmental changes and respond best to the environment points to the development of new stealth materials. A brand new idea and method. The intelligent stealth material has a fine microstructure with local sensitivity and response functions. It can sense and analyze various active detection signals that reach the surface of the aircraft from different azimuth angles, and instantaneously adjust the basic characteristic parameters of electromagnetic waves ∈,, a and chemical constants in the surface area. nk, etc., in order to achieve a good stealth effect. An active absorbing material is based on this principle. This material is composed of embedded semiconductor diodes or other electromagnetic sensitive components in the matrix. When there is no external excitation (that is, there is no radar wave irradiation), they do not absorb electromagnetic waves, and when externally excited, these electromagnetic devices automatically switch, thereby changing the material's absorbing/reflecting electromagnetic wave characteristics.



The intelligent stealth material has the function of self-adapting the same color to the environment, the function of camouflage segmentation and the function of pseudo-relief. For example, a coating used for manned/unmanned aircraft activates the sensitive components in the coating by applying a voltage of 24V, thereby forming both radar and visual shielding. The attenuation of radar waves by the electrified coating is better than that of the existing stealth coating. In addition, the coating has the characteristics of changing the color of the aircraft skin, so that from below, the aircraft merges with the sky, and from above, the aircraft merges with the earth. In a variety of colors. The concept of smart skin first proposed in the United States is based on conductive polymers. A stealth skin similar to the wave coating can eliminate the traditional radar antenna by embedding various airborne electronic devices and sensors in the skin.

ferrite sheet:https://www.goodsmaterial.com/

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