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Extensible mirror body with shape memory material lining substrate

A technology of memory materials and mirrors, applied in the directions of mirrors, antennas, electrical components, etc., can solve the problems that aerospace mirrors cannot achieve a large expansion volume to shrinkage volume ratio, low precision, and small diameter, and shorten the production cycle. The effect of less system structure and control links and high reliability

Inactive Publication Date: 2007-10-24
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems that the existing aerospace mirrors cannot meet the requirements of a large ratio of expanded volume to contracted volume, as well as the problems of small aperture, low precision and high quality, a deployable mirror with a shape memory material substrate substrate is proposed. body

Method used

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  • Extensible mirror body with shape memory material lining substrate
  • Extensible mirror body with shape memory material lining substrate
  • Extensible mirror body with shape memory material lining substrate

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specific Embodiment approach 1

[0013] Embodiment 1: This embodiment is described in conjunction with Fig. 1 and Fig. 2. This embodiment is composed of a shape memory composite material base substrate 1 and a metal layer 2; the shape of the shape memory composite material base substrate 1 is a paraboloid, The inner surface of the base substrate 1 of shape memory composite material is electroplated with a metal layer 2 . The metal layer 2 provides a high-precision reflective surface, improves the surface smoothness of the expandable mirror body, and reduces its surface scattering rate. The shape-memory composite material underlay substrate 1 plays a dual role of carrying the structure and driving the structure to unfold.

specific Embodiment approach 2

[0014] Embodiment 2: This embodiment is described with reference to FIG. 1 and FIG. 2 . The difference between this embodiment and Embodiment 1 is that the thickness of the metal layer 2 is 0.001 mm to 1 mm, and the material of the metal layer is nickel metal. Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0015] Specific Embodiment 3: This embodiment will be described with reference to FIG. 1 and FIG. 2. The difference between this embodiment and Embodiment 1 is that the thickness of the shape memory composite substrate 1 is 0.1 mm to 80 mm. The focal length of the paraboloid of the backing substrate 1 and the aperture ratio of the paraboloid of the shape memory composite backing substrate 1 are 0.025-2.5; other components and connection methods are the same as those in the first embodiment.

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Abstract

The related extensible reflection mirror for shape-memory material substrate used in space field comprises: a parabolic composite material substrate (1), and a metal layer (2) plated on inner surface of substrate (1). This invention has well ratio between extended and shrank volume, introduces low reflection area density, reduces system structure and control loop, improves system reliability, and eliminates the blasting supply for trigger.

Description

technical field [0001] The invention relates to a mirror body of an expandable reflector. Background technique [0002] Due to the limited space of the aerospace vehicle, the volume of the aerospace reflector is limited. Therefore, the deployable reflector must have light weight, a large ratio of expanded volume to contracted volume, and high reliability. With the rapid development of space technology, satellite communication, radio astronomy and radar technology, the demand for space deployable reflectors will increase greatly. [0003] Most of the existing aerospace reflectors are non-expandable reflectors, which have been assembled and manufactured on the ground, and can be released and put into use when the spacecraft is in orbit. This kind of reflector has high reliability because it does not have an unfolding process in outer space. But the biggest disadvantage is that the mirror body has a small aperture and the amount of information transmission is limited. With t...

Claims

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Application Information

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IPC IPC(8): H01Q15/14H01Q15/16G02B1/04G02B5/08C08L25/04C08L63/00C08L75/04C08L67/00C08K7/04B29C61/06
Inventor 冷劲松刘彦菊兰鑫王肖华
Owner HARBIN INST OF TECH
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