Optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom

A technology of electromagnetic shielding and simulating space, applied in small buildings and other directions, it can solve the problems of poor aesthetics in darkrooms, prone to fire accidents, and failure of wave absorbers, and achieves the protection of information security and stability, high electromagnetic shielding efficiency, and small measurement errors. Effect

Active Publication Date: 2014-06-18
SHANGHAI CAMA OPTOELECTRONICS EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of polyurethane wave-absorbing wedges that need to be overcome include: first, the oxygen index of polyurethane wave-absorbing wedges is generally below 30, and the flame retardancy is only B2 level, and fire accidents are still easy to occur in some extreme cases; The performance of the wave-absorbing wedge is poor in power resistance. When high-power electromagnetic waves radiate on the wedge, most of the electromagnetic energy is converted into heat, which

Method used

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  • Optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom
  • Optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom
  • Optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom

Examples

Experimental program
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Effect test

Embodiment 1

[0058] Embodiment 1: as attached figure 1 As shown, the darkroom is a six-sided square frame structure, and the inside of the four side walls and the bottom of the ceiling are installed with keel-back frames all over the place to mount the light-absorbing wedge 5, that is, the inner side of the six-sided square frame is installed by the main keel 9 and the auxiliary keel 2 The grid back frame 6 formed, and then the absorbing base 4 is mounted on the grid back frame 6 opaquely and densely, and the light-absorbing wedge 5 is installed on the wave-absorbing base 4; The visible surface has a matte coating 12 .

[0059] In the foregoing, as attached figure 2 As shown, the six-sided square frame structure of the darkroom is composed of a group of main beams 1 in the horizontal direction on the top and a group of main columns 8 in the vertical direction. A grid back frame 6 formed by cross connections. A grounding device 7 is installed and connected to the outside of the mesh ba...

Embodiment 2

[0080] The main keel 9 stands on the ground, the auxiliary keel 2 is welded on the main keel 9, and the shielding steel plate 3 is welded on the back frame composed of the main keel 9 and the auxiliary keel 2; cold-rolled steel plate; all extinction absorbing wedges 5 are only coated with a layer of extinction coating 12 before hanging; the actual measurement shows that the extinction effect of the darkroom reaches 95.5%, and the electrical performance of the darkroom has a shielding effect of 90dB on 2GHZ-18GHZ microwave signals.

Embodiment 3

[0082] It is basically the same as Example 2, except that the matting and absorbing wedge 5 is coated with three layers of matting coatings 12 before hanging; simultaneously, the matting efficiency of the darkroom is improved.

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Abstract

The invention discloses an optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom which is of a six-face square framework structure. Extinction microwave absorbing wedges (5) are spread over the inner sides of four side walls and the position below a ceiling in a mounted mode through a joist-frame carrier method, namely, the inner side of a six-face square framework is provided with a grid frame carrier (6) composed of a main joist (9) and an auxiliary joist (2), microwave absorbing bases (4) are densely distributed on the grid frame carrier (6) in a light-proof and mounted mode, and the extinction microwave absorbing wedges (5) are installed on the microwave absorbing bases (4). All visible surfaces of the extinction microwave absorbing wedges (5) are provided with extinction coatings (12). The optimized and fused simulation space optics-electromagnetic shielding environment composite darkroom can be used for measuring various characteristic parameters of microwave/infrared double-module products at the same time, and the space optics environment simulation and the space electromagnetic shielding environment simulation can be fused completely, the extinction ratio in a working area is improved to more than 95 percent from 90 percent, the electromagnetic shielding effectiveness is high, and the shielding effectiveness of the darkroom electrical property to 2GHZ-18GHZ microwave signals is 90dB.

Description

technical field [0001] The invention relates to the technical field of infrared testing and microwave testing, and belongs to the IPC international patent classification G01C measurement testing or EO4H special-purpose buildings or similar structures in the technology of simulating space optical environment and microwave electromagnetic shielding environment devices, especially the simulation of optimization fusion Space optics-electromagnetic shielding environment compound darkroom. Background technique [0002] At present, many products to be tested have both infrared characteristics and microwave characteristics, and the darkroom simulating the space optical environment and the darkroom simulating the space electromagnetic shielding environment cannot be combined together, which makes it necessary to constantly change places when testing product characteristics. To be able to complete these tests, it is required to provide a darkroom that can simulate both the space optic...

Claims

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Application Information

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IPC IPC(8): E04H1/12
Inventor 李康刁海南
Owner SHANGHAI CAMA OPTOELECTRONICS EQUIP
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