Atmospheric-pressure low-power microwave hairpin resonant discharger

A technology of power amplifier and discharger, which is applied in the field of plasma

Pending Publication Date: 2018-04-20
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

But the atmospheric pressure low power microwave hairpin resonant arrester based on hairpin resonance principle has not been reported, in view of this the present invention has reported a kind of atmospheric pressure low power microwave hairpin resonant arrester

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  • Atmospheric-pressure low-power microwave hairpin resonant discharger

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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 are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, not all Example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] Below in conjunction with accompanying drawing and concrete implementation further illustrate technical scheme of the present invention, refer to figure 1 :

[0019] Microwave hairpin resonant arrester can use a variety of carrier gases (argon, helium, nitrogen, oxygen, etc.) Under the condition of 10%, the plasma plume can be generated; the plasma plume morphology and plasma parameters can be adjusted through the pulse signa...

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Abstract

The invention relates to the field of microwave discharge plasma, and specifically relates to an atmospheric-pressure low-power microwave hairpin resonant discharger. The discharger comprises a quartztube, a U-shaped metal wire, a grounding copper glue film, and a carrier gas input end. A U-shaped metal wire in the quartz tube is electrically connected with a microwave power meter and a power amplifier, and the power amplifier is electrically connected to a pulse signal modulator and a microwave signal generator. One end of the quartz tube serves as the carrier gas input end. The discharger employs a hairpin-shaped microwave resonant electrode as a discharge driver. Different types of carrier gas serve as working gas under the atmospheric pressure, and the working gas enters the quartz tube through the carrier gas input end, and passes through the U-shaped metal wire. The microwave signal generator is started, and the pulse frequency value of the pulse signal modulator is set. The power amplifier is adjusted to maintain the specific power output while observing the microwave power meter. The discharge phenomenon happens in the quartz tube, and the tip of the U-shaped metal wire generates a plasma plume. Moreover, a clear arch-shaped pattern is presented.

Description

technical field [0001] The invention relates to the technical field of microwave discharge plasma, in particular to an atmospheric pressure low-power microwave hairpin resonant discharger. Background technique [0002] In the mid-1870s, Stenzel first designed a microwave resonance probe for diagnosing electron density at pressures below 100Pa. The shape of this microwave resonance probe is similar to the letter U, so it is called a hairpin probe. According to the working principle of the microwave transmission line, the hairpin probe is a quarter-wavelength microwave resonator, one end of which is excited and the other end is open. This structure ensures that the voltage at the open end has the maximum voltage value, and A locally enhanced electric field is distributed at the open end of the hairpin probe. Because the plasma sheath structure around the hairpin electrode has a clear distribution only in the lower pressure range, and only with a clear sheath structure can th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/46
CPCH05H1/46H05H1/461
Inventor 陈兆权涂一烺赵卫东冯德仁
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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