Deformation test device for reflector antenna with cover

A technology of deformation testing and reflecting surfaces, applied in the direction of measuring devices, instruments, etc., can solve the problems of testing the electromagnetic performance of antennas, lack of deformation data, and affecting actual use, and achieve the effects of reducing production costs, improving accuracy, and reducing weight

Active Publication Date: 2022-03-04
XIDIAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practice, after the antenna is manufactured, it is necessary to test the mechanical properties of the antenna structure in the wind tunnel laboratory, and carry out electromagnetic radiation performance experiments in the microwave anechoic chamber. There are still great difficulties in measuring the electromagnetic properties of the antenna under load. At present, it is impossible to test the electromagnetic performance of the antenna in the wind tunnel experiment, and the accuracy of the antenna deformation test in the wind tunnel experiment is low, so the existing technology cannot accurately measure the deformation of the antenna under the load
Without accurate deformation data, it is impossible to evaluate the reliability of the structure and electromagnetic performance of the antenna under load, which affects actual use

Method used

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  • Deformation test device for reflector antenna with cover
  • Deformation test device for reflector antenna with cover
  • Deformation test device for reflector antenna with cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1, a deformation test device under the action of a positive pressure load of a reflector antenna with a cover.

[0042] As shown in Figure 1, this example includes a sub-device for the positive pressure deformation of the radome and a sub-device for testing the positive pressure deformation of the main reflector.

[0043] Referring to Figure 1(a) and figure 2, the positive pressure deformation sub-device of the radome in this example, its structure includes: a support structure 11 , a cylinder 13 , a conformal radome baffle 14 and a positioning ring 15 . Cylinder 13 is a hollow cylindrical structure made of thin steel plate through cold rolling, and its lower part is welded with a flanging structure. The positioning ring 15 is placed on the inner flanging structure of the cylinder to fix the cylinder 13 on the supporting structure. 11 upper part, wherein the support structure 11, the cylinder 13 and the positioning ring 15 are connected together by bolts, th...

Embodiment 2

[0051] Embodiment 2, a deformation test device for a reflector antenna with a cover under the action of back pressure load.

[0052] This example only needs to measure the deformation of the main reflector of the reflector antenna, and the test device is designed by adding some structures on the basis of the positive pressure deformation sub-device of the radome in the first embodiment.

[0053] refer to Figure 5 and Figure 6 , the main reflection surface back pressure deformation device, its structure includes: support structure 11, cylinder 13, secondary support structure 16, long channel steel 17, square tube 18 and conformal back pressure baffle 19. The lower part of the support structure 11 is placed on the level ground, the secondary support structure 16 is fixed on the upper part of the support structure 11, the long channel steel 17 is fixed on the secondary support structure 16 through the cylinder 13, and the square cylinder 18 is fixed on the inner cavity of the ...

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Abstract

The invention discloses a deformation testing device for a reflector antenna with a cover, which mainly solves the problem of inaccurate measurement of deformation data by the existing testing device. It comprises a support structure (11) and a cylinder (13). There are quicksand holes (12) on the side of the cylinder, a conformal radome baffle (14) on the upper part of the inner cavity, and a radome body positioning ring (15) on the lower part; the support structure (11) includes a hollow disc (111 ), the hollow steel ring (112) and the support ring (113), the three are connected from bottom to top through a plurality of main support rods (114), and the side of each main support rod is connected with an anti-overturn frame (115), and the cylinder Fastened to the support ring of the support structure. During the test, the tested sample is placed on the positioning ring in the cylinder, and the wind load is simulated by filling the sand between the tested sample and the conformal radome baffle. The invention can measure the real deformation data of the antenna under the simulated wind load, and provide guidance for the calculation of the electromagnetic performance under the wind load.

Description

technical field [0001] The invention belongs to the technical field of electronic instruments, and in particular relates to an antenna deformation testing device, which can measure the deformation information of the antenna, and is used for checking the reliability of the key position of the antenna structure, checking the overall strength and predicting the electromagnetic performance of the antenna under load. Background technique [0002] The reflector antenna has the characteristics of high reliability, simple structure, low cost, high gain, and low sidelobe. It is a typical mechatronic device and is widely used in major projects such as electronic countermeasures, radio astronomy, manned spaceflight, and deep space exploration. project. The mechanical structure of the antenna is the carrier to realize the electrical performance of the antenna, and the rational design of its mechanical structure is a key factor to improve the electrical performance of the antenna. With ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01B21/32
CPCG01B21/32
Inventor秦强强李建伟周金柱赵文忠马镛基许万业韩冰吴凯
OwnerXIDIAN UNIV