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High-speed plasma sheath frequency spectrum modulation characteristic measuring device

A technology of plasma and modulation characteristics, which is applied in the field of electromagnetic measurement equipment, and can solve problems such as measurement of spectrum modulation characteristics of plasma sheaths

Pending Publication Date: 2020-11-20
BEIJING INST OF ENVIRONMENTAL FEATURES
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the problem of how to measure the spectrum modulation characteristics of the plasma sheath

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  • High-speed plasma sheath frequency spectrum modulation characteristic measuring device

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] A high-speed plasma sheath spectrum modulation characteristic measurement device, such as figure 1 As shown, it includes a wave-transparent model 1, a transmitting antenna 2 and a receiving antenna 3. The transmitting antenna 2 is placed inside the wave-transparent model 1, and the receiving antenna 3 is placed outside the wave-transpa...

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Abstract

The invention relates to a high-speed plasma sheath frequency spectrum modulation characteristic measuring device. The device comprises a wave-transparent model, a transmitting antenna and a receivingantenna, the transmitting antenna is arranged in the wave-transparent model; the receiving antenna is arranged outside the wave-transparent model and located under the transmitting antenna, the wave-transparent model is located in the high-enthalpy airflow, the head of the wave-transparent model faces the flow direction of the high-enthalpy airflow, the receiving antenna is arranged outside the high-enthalpy airflow, and the method has the advantage that the high-speed plasma sheath frequency spectrum modulation characteristic can be measured.

Description

technical field [0001] The invention relates to the technical field of electromagnetic measuring equipment, in particular to a high-speed plasma sheath spectrum modulation characteristic measuring device. Background technique [0002] When a high-speed target moves at high speed in the atmosphere, a plasma sheath will be generated around the target, which will interfere with radar waves. The continuous generation and recombination of electrons in the plasma sheath will produce spectrum modulation characteristics of the reflected signal, so it is necessary to measure the spectrum modulation characteristics of the plasma sheath. Contents of the invention [0003] (1) Technical problems to be solved [0004] The technical problem to be solved by the invention is how to measure the spectrum modulation characteristic of the plasma sheath. [0005] (2) Technical solutions [0006] In order to solve the above technical problems, the present invention provides a high-speed plas...

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Application Information

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IPC IPC(8): G01R29/08
CPCG01R29/0878
Inventor 邓浩川吴洋满良张良聪冯雪健
Owner BEIJING INST OF ENVIRONMENTAL FEATURES