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Radar made of composite material and preparation method thereof

A composite material and radar technology, used in the field of radar, can solve the problems of insufficient stability and heavy weight of electromagnetic wave reception and feedback, and achieve the effects of not easy to deform, high adherence coefficient, and stable reception and feedback.

Active Publication Date: 2022-05-10
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem of insufficient stability in the reception and feedback of electromagnetic waves due to the large weight and deformation during operation of the radar in the prior art when it is used for a long time, and to provide a radar made of composite materials and its preparation method

Method used

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Embodiment Construction

[0053] The present invention will be further described below in combination with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0054] A preparation method of a radar made of a composite material, the specific steps are as follows:

[0055] (1) Preparation of raw materials:

[0056] Warp yarn: denier is 1200dtex; carbon fiber, tensile strength is 17.8cN / dtex, elongation at break is 1.5%;

[0057] Weft yarn: denier is 1200dtex; carbon fiber, tensile strength is 17.8cN / dtex, elongation at break is 1.5%;

[0058] (2) Modeling: using modeling soft...

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Abstract

The invention relates to a radar made of composite material and a preparation method thereof. The radome body is a composite material made of phenolic resin as a matrix and radar fabric as a reinforcing phase; the radar fabric is formed by interweaving warp and weft yarns Single-layer plain woven fabric, and the single-layer plain woven fabric is consistent with the surface shape of the radar; all warp yarns on the single-layer plain woven fabric are parallel to the plane where any curved warp yarn is located, and all weft yarns are parallel to any curved warp yarn. The plane where the weft yarns are located is parallel; and the warp and weft densities are the same everywhere; the preparation method is as follows: establish a model of the radome, make a radar fabric according to the model, place the radar fabric in a mold, and use phenolic resin as the The main raw materials are processed to obtain a radome; the preparation method of a radar made of a composite material of the present invention can directly weave a fabric with a curved surface shape, and the prepared radar adopts a carbon fiber composite material with a higher dielectric constant. Can better absorb electromagnetic waves.

Description

technical field [0001] The invention belongs to the technical field of radar, and relates to a radar made of composite material and a preparation method thereof. Background technique [0002] Radar, that is, a device that detects objects by radio and determines their spatial position, is also called "radiolocation". The radar emits electromagnetic waves to irradiate the target and receives its echo, thereby obtaining information such as the distance from the target to the electromagnetic wave emission point, the distance change rate (radial velocity), azimuth, and height. With the improvement of the performance of various parameters (such as: beam directionality, receiver sensitivity, transmitter coherence, etc.), radar has become a powerful tool for humans to detect targets of different natures. In addition to detecting and locating aircraft, the current radar plays an important role in the fields of military, meteorology, transportation, aviation, remote sensing and telem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D25/00D03D1/00D03D15/275D03D13/00D03D49/06D03D51/00D03C9/02D03D49/00B29C70/34B29C70/54G01S13/02
Inventor 范红卫陈瑞邵义伟付恒岩张元华黄瑶
Owner JIANGSU HENGLI CHEM FIBER
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