Four-point support of quadrilateral subpanel based universal detection method of radio telescope

Abstract

The invention relates to a four-point support of quadrilateral subpanel based universal detection method of a radio telescope, comprising the following steps of: (1) arranging a target on at least one entire line of subpanels and at least one entire row of the subpanels which are positioned in the center of an antenna; (2) at least scanning the targets arranged on one entire line of the subpanels and one entire row of the subpanels which are positioned in the center of the antenna by a high-precision rotational tracking scanning laser receiving device or a laser emitting and receiving device; recording the positions of the laser emitting device aiming at different targets by a high-precision coder; (3) obtaining angle data by measuring the information of the image patch position of a spliced target surface which translates and rotates along with the laser emitting device; and (4) directly educing the positional deviation of all panels, the surface shape precision of the integral spliced antenna and supporting point displacement needed by correcting the surface shape precision, i.e. the correction of a promoter. Aiming at the radio telescope, the paraboloid antenna adopts the design based on the four-point support of the quadrilateral subpanel and realizes the real-time splicing detection and the regulation of batched panels at low manufacturing cost through simple and easy process.

Description

technical field [0001] The invention relates to a method for splicing and co-phase detection and correction of radio telescopes based on four-point support of quadrilateral sub-panels, which is very suitable for splicing and co-phase detection and correction of radio panels of radio telescopes and millimeter / submillimeter wave telescopes. Background technique [0002] A radio telescope usually has a large aperture, and its antenna (main panel) is usually spliced ​​by a large number of small panels. For example, a 65-meter-caliber radio telescope antenna is composed of thousands of one-meter panels. During the formal operation, under the influence of external loads such as gravity and wind, it is necessary to ensure that the overall surface shape of the paraboloid is within the allowable range. In addition to considering the conformal design of the support of the antenna back frame, the splicing inspection of large quantities of panels is also a key part of the design and ope...

AI Technical Summary

Problems solved by technology

[0006] The common disadvantage of the above radio telescope reflective surface detection methods is that it is only suitable for the detection and review of reflective surfaces at a single or certain height positions, and it is impossible to detect and ensure that the calibrated surface after the installation and adjustment of the radio telescope is real-time during the working process of the radio telescope. shape accuracy, the workload of batch real-time detection is particularly heavy

Images