Large diameter polarized wire grid winding device

Abstract

The present invention proposes a large-diameter polarized wire grid winding device, which includes a working platform, a winding mechanism, a wire arrangement mechanism, a wire release mechanism, and a control unit; the winding mechanism can rotate around the rotation axis, and the platform movement direction of the wire arrangement mechanism is in line with the The rotation axis of the winding mechanism is parallel; the pay-off mechanism is installed on the platform of the wire-discharging mechanism, and the metal wire can be released from the pay-off mechanism with a constant tension and wound on the winding mechanism with a wire grid ring installed; the control unit controls the rotation The frame speed, the moving speed of the cable mechanism platform and the pay-off speed of the pay-off mechanism. The pay-off mechanism in the present invention is an active pay-off system with variable wire speed and constant tension, including a wire reel, a motor drive device for the pay-off mechanism, a crimping rod, a double guide wheel tensioner, a shaft angle sensor, a guide wheel, and a tension controller. , Wire rod; through the joint action of electric drive device, double guide wheel tensioner, and shaft angle sensor, the closed-loop control of the pay-off speed can be realized to prevent wire breakage or wire slack.

Description

technical field [0001] The invention relates to a large diameter polarization wire grid winding device. Background technique [0002] As a low-loss polarization separator, the polarization wire grid is a quasi-optical device used for polarization separation of electromagnetic waves. As a low-loss polarizer, it can be used in microwave, millimeter wave, submillimeter It is widely used in the far-infrared band. my country's "Gaofen-1" satellite, Fengyun-3 "microwave hygrometer" and the "full polarization microwave radiometer calibration source" developed by the Microwave Remote Sensing Department of the National Space Center have important applications. [0003] The main body of the polarized wire grid consists of a series of equally spaced, vertically or horizontally arranged metal wires. Ideally, when the vertical polarization direction of the incident electromagnetic wave is parallel to the polarized wire grid, the vertically polarized electromagnetic wave is reflected an...

AI Technical Summary

Problems solved by technology

In addition, the original technical scheme uses nylon material for the round tube, which has low hardness. After repeated use, there will be marks on the surface of the material, which cannot meet the requirements of multiple windings and must be changed.

[0010] 2. In the original technical solution, the rotating mechanism is exposed, which is acceptable for small wire grid winding devices. For large wire grid winding devices, the exposed rotating mechanism is obviously unsafe during the working process, which is likely to cause personal and equipment safety accidents

Therefore, the equipment must be closed and isolated

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