Installation precision detection method for planar array antenna surface

A technology for planar array antennas and installation accuracy, which is applied in the directions of measuring devices, surveying and navigation, and measuring inclination, etc. It can solve the problems of inability to detect the accuracy of the repeating surface of the antenna array, the inability to detect the error of the antenna elevation angle, and the difficulty of repairing and adjusting. Achieve the effect of convenient and fast detection, low cost and simple adjustment

Inactive Publication Date: 2012-10-24
ANHUI BOWEI CHANGAN ELECTRONICS
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AI Technical Summary

Problems solved by technology

[0006] The biggest disadvantage of this detection method is that it cannot detect the accuracy of repeating the surface after the rotation, flipping and pitching of the antenna front; it cannot detect and eliminate the deformation of the skeleton caused by the self-weight of the skeleton when the radar is in working state (8° to 15° angle). Causes an impact on the accuracy of the antenna front surface; the elevation angle error of the antenna cannot be detected, and when the skeleton is vertically assembled with the waveguide bracket, vertically and horizontally, one by one, line by line, the workload is large and the efficiency is low. And it is necessary to purchase a collimating telescope, and in the inspection process, for the out-of-tolerance part, because of the vertical assembly, it is also very difficult to carry out local repairs and adjustments, and it is not safe for personnel to work at heights for a long time

Method used

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  • Installation precision detection method for planar array antenna surface
  • Installation precision detection method for planar array antenna surface
  • Installation precision detection method for planar array antenna surface

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Embodiment Construction

[0031] The antenna is set on the antenna pedestal 7 , and the antenna pedestal 7 is set on the bottom plate 8 on the ground 9 . The antenna includes an antenna frame 1 and an antenna base 7. The antenna frame 1 includes an upper frame 10 and a lower frame 11. The upper frame 10 is connected to the antenna base 7 through a turning mechanism 12, and the lower frame 11 is fixed on the antenna base 7. Both the upper frame 10 and the lower frame 11 of the antenna include a waveguide support 6 and a slotted waveguide 13 . The theodolite lens 14 on the theodolite 5 can rotate up and down.

[0032] see Figure 1 ~ Figure 3 , a method for detecting the installation accuracy of a planar array antenna surface, comprising the following steps:

[0033] a. set up 1 " grade level instrument 2 in front of antenna skeleton 1 ; flat panel 3 is set on the side of the skeleton, universal turntable 4 is installed on said flat panel 3 , 1 " level theodolite 5 is mounted on universal turntable 4 ,...

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Abstract

The invention discloses an installation precision detection method for a planar array antenna surface. A level-1'' level gauge is arranged just in front of an antenna skeleton; the side surface of an antenna is provided with a universal swivel table; a level-1'' theodolite is erected on the universal swivel table; and an antenna is detected by the theodolite, a depthometer and the level gauge. The installation precision detection method for the planar array antenna surface, which is disclosed by the invention, has the advantages of high detection precision, convenience and rapidness in detection, simple detection system structure, easiness in disassembling and assembling and the like.

Description

technical field [0001] The invention relates to a method for detecting installation accuracy of a plane array antenna surface. Background technique [0002] The antenna and the feeder system with the antenna as the main body are important components for the radar to transmit and receive space electromagnetic waves, thereby realizing the basic functions of the radar. Radar antennas generally have two completely different structural forms, curved surface type and array type. Because array antennas are more conducive to achieving high maneuverability and low sidelobes of radar, they have been increasingly widely used and have become the main structure of modern radars. form. [0003] Compared with the traditional reflector antenna, the profile of the array antenna is mostly flat, and the outline is more regular. It is composed of several vertical and horizontal beams that are perpendicular to each other and a frame to form the array skeleton of the well format, and a certain n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C9/00G01B21/22G01B21/24G01D21/02
Inventor 郑红云
Owner ANHUI BOWEI CHANGAN ELECTRONICS
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