Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Selective-radiation infrared stealth structure

A selective, infrared technology, applied in the field of infrared stealth, can solve problems such as low emission, and achieve the effect of meeting stealth requirements and efficient heat dissipation windows

Inactive Publication Date: 2017-05-31
AIR FORCE UNIV PLA
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of selective emission metamaterials with low emission in the atmospheric window and high emission outside the atmospheric window in infrared stealth technology has not yet been reported in public literature

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Selective-radiation infrared stealth structure
  • Selective-radiation infrared stealth structure
  • Selective-radiation infrared stealth structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] combine Figure 1-Figure 3 As shown, Embodiment 1 of the present invention provides a selective radiation infrared stealth structure, including a plurality of infrared selective heat emitting units arranged in a matrix according to a period p.

[0029] Each infrared selective heat emission unit includes a substrate layer, a metal back plate, a dielectric layer and a metal sheet layer arranged in sequence from bottom to top, and the metal sheet layer includes a first metal sheet, a second metal sheet, a third metal sheet and a first metal sheet Four metal sheets, the first metal sheet, the second metal sheet, the third metal sheet and the fourth metal sheet are arranged on the dielectric layer in a 2*2 array, and the first metal sheet, the second metal sheet, and the third metal sheet and the side lengths of the fourth metal sheet are all different.

[0030] Wherein, the substrate layer is made of Si sheet, the thickness of the substrate layer is 0.5mm, the metal backpl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a selective-radiation infrared stealth structure, and relates to the technical field of infrared stealth. The infrared stealth structure comprises a plurality of infrared selective heat emission units which are arranged and distributed in the form of a matrix according to a period p; each infrared selective heat emission unit comprises a substrate layer, a metal backboard, a dielectric layer and a metal sheet layer which are sequentially arranged from bottom to top; each metal sheet layer comprises a first metal sheet, a second metal sheet, a third metal sheet and a fourth metal sheet; and the first metal sheets, the second metal sheets, the third metal sheets and the fourth metal sheets are arranged on the dielectric layers by spacing by 90 degrees around the centers of the infrared selective heat emission units. The selective-radiation infrared stealth structure disclosed by the invention realizes selective thermal radiation through electromagnetic resonance characteristics of an infrared metamaterial, and realizes an infrared stealth technology through the transmitted spectrum design.

Description

technical field [0001] The invention relates to the technical field of infrared stealth, and more specifically relates to a selective radiation infrared stealth structure. Background technique [0002] Infrared stealth technology is to reduce or change the infrared radiation characteristics of the target, so as to make it difficult for the enemy's infrared detection equipment to detect or reduce its detection ability. The infrared radiation energy of an object is characterized by Stefan Boltzmann's law, W=εσT 4 , where W is the radiation output of the actual object, ε is the emissivity of the object, σ is the Boltzmann constant, and T is the thermodynamic temperature of the object. It can be seen that there are two effective ways to reduce infrared radiation, controlling the emissivity and controlling the temperature. At present, low-emissivity coating is one of the main technical means of infrared stealth, and thermal radiation is proportional to the fourth power of tempe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F41H3/00B32B9/04B32B15/04B32B33/00
CPCF41H3/00B32B9/04B32B15/04B32B33/00B32B2307/212B32B2571/02
Inventor 屈绍波徐翠莲王甲富庞永强马华王军李勇峰杜洪亮
Owner AIR FORCE UNIV PLA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com