A visualization method and device for measuring the accuracy of microwave reflecting surfaces

Abstract

A method and device for visualizing the accuracy measurement of a microwave reflecting surface, which adopts local point contact and automatic collection methods to collect data points on the reflecting surface, record the normal value points of the reflecting surface, and compare the values ​​of the actual microwave reflecting surface and the standard microwave The values ​​of the reflective surface are fitted according to the longitude and latitude directions, and the comparison and visualization results of the standard microwave reflective surface and the measured microwave reflective surface are obtained. This method is local contact, which will not affect the accuracy of the reflective surface itself, and overcomes the The mechanical measurement method cannot measure the shortcomings of the tiny protrusions in the normal direction, and through corresponding special calculations, the corresponding visualization results are obtained through software.

Description

technical field [0001] The invention relates to a microwave antenna measurement technology, in particular to a method and device for visually realizing the precision measurement of a microwave reflecting surface. Background technique [0002] As one of the important terminals of the communication system, the microwave antenna is widely used in point-to-point wireless communication. The parabolic antenna is one of the most common implementation methods in the microwave field. The reflective surface is the core component of the parabolic antenna. Performance indicators are good or bad. [0003] In current projects, mechanical measurement is usually used to measure the accuracy of the reflective surface. At present, the curve plate and feeler gauge are often used to measure the normal clearance value L of evenly distributed points. i , and calculate its root mean square However, with this method, there are the following problems: [0004] If mechanical measurement is used, ...

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Problems solved by technology

[0004] If mechanical measurement is used, only the normal gap between the curved backing plate and the reflective surface to be measured can be measured, but the tiny protrusions in the normal direction cannot be measured, and the contact between the curved backing plate and the measured reflective surface will affect the accuracy of the opposite surface due to gravity. a certain degree of influence;

[0005] The root mean square value is used to judge the accuracy of the reflective surface. This index is a macro-average value. For the judgment of the accuracy of the reflective surface with local severe deformation, judgment failure may occur;

[0006] This measurement method is inefficient, difficult to image, and intuitively reflects the accuracy of the reflective surface. During the measurement process, many subjective factors of the measurer are involved, and it is difficult to achieve the purpose of objectively evaluating the accuracy of the reflective surface.

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