Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-power microwave active protection device

A high-power microwave, active protection technology, applied in the direction of automatic disconnection of emergency protection devices, emergency protection circuit devices, circuit devices, etc., can solve problems affecting experimental operation, ignition phenomenon, damage to ceramic windows, etc. Reliability, avoid fire phenomenon, avoid the effect of economic loss

Inactive Publication Date: 2014-02-19
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of fusion experiments, it often happens that some microwaves are reflected back due to poor coupling between plasma and microwaves. At this time, it is easy to cause ignition in the waveguide, which will damage the ceramic window used for vacuum sealing and affect the operation of the experiment. , if the circulator protecting the klystron fails, the higher reflected power will also damage the klystron, causing huge losses

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-power microwave active protection device
  • High-power microwave active protection device
  • High-power microwave active protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, a high-power microwave active protection device includes a klystron 10, the output end of the klystron 10 is connected with a dual-directional coupler 1, and the dual-directional coupler 1 is connected with a DC blocker 2, a wave detector 3, and The isolation amplifier 4, the high reflection protection box 5 and the fast protection box 7 are connected, the high reflection protection box 5 is also connected with the microwave source 6, the fast protection box 7 is respectively connected with two digital isolators 8, and the two digital isolators are respectively 8 Connected with PLC9 and high voltage source 11, the microwave output from the klystron 10 is transmitted into the dual directional coupler 1, and the reflected power coupled out by the dual directional coupler 1 is converted into a voltage signal by the DC blocker 2 and the detector 3 , the voltage signal is isolated and amplified by the isolation amplifier 4 and then sent to the high...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-power microwave active protection device. The high-power microwave active protection device comprises a klystron. The output end of the klystron is connected with double directional couplers, and the double directional couplers are sequentially connected with a DC block, a wave detector, an isolation amplifier, a high reflection protection box and a fast protection box. The high reflection protection box is further connected with a microwave source, the fast protection box is respectively connected two digital isolators, and the two digital isolators are connected with a PLC and a high voltage source respectively. According to the protection method of the high-power microwave active protection device, by judging the magnitude of reflection power, signals of the microwave source are cut off timely before ignition, and thus ignition is avoided; meanwhile, a protection measure for faults of a circulator is provided for the microwave devices such as the klystron strict in the reflection power; system reliability is improved, the klystron is protected to be safe, and heavy economical losses are avoided.

Description

technical field [0001] The invention relates to the technical field of controlled thermonuclear fusion, in particular to a high-power microwave active protection device. Background technique [0002] Low clutter is currently widely used in nuclear fusion experiments, and its main functions are current drive and auxiliary heating. The low clutter system mainly outputs power through multiple high-power klystrons. In the process of fusion experiments, it often happens that some microwaves are reflected back due to poor coupling between plasma and microwaves. At this time, it is easy to cause ignition in the waveguide, which will damage the ceramic window used for vacuum sealing and affect the operation of the experiment. , if the circulator protecting the klystron breaks down, the higher reflected power will also damage the klystron, causing huge losses. Although the ignition protection system has been installed on the system, it is a passive protection action after ignit...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02H3/42
Inventor 马文东胡怀传王茂徐旵东刘甫坤单家方
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com