CN112946361B - High-power microwave power and mode real-time monitoring equipment - Google Patents
High-power microwave power and mode real-time monitoring equipment Download PDFInfo
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- CN112946361B CN112946361B CN202110098113.XA CN202110098113A CN112946361B CN 112946361 B CN112946361 B CN 112946361B CN 202110098113 A CN202110098113 A CN 202110098113A CN 112946361 B CN112946361 B CN 112946361B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/02—Arrangements for measuring electric power or power factor by thermal methods, e.g. calorimetric
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The invention discloses high-power microwave power and mode real-time monitoring equipment which comprises a monitoring elbow, a measurement and control cable and a measurement and control unit, wherein the monitoring elbow comprises a microwave reflecting surface, a curved waveguide and a waveguide flange, a temperature sensor is arranged on the microwave reflecting surface, a temperature signal is transmitted to the measurement and control unit through the measurement and control cable, and the measurement and control unit calculates and obtains microwave power and mode content distribution. The hardware of the measurement and control unit adopts a common computer or an industrial personal computer or a PXI controller, and software is developed based on Labview and used for calculating and displaying microwave power and pattern content distribution. The invention can simultaneously measure the power and mode distribution of the high-power microwave in real time, and is important equipment for monitoring the high-power microwave.
Description
Technical Field
The invention relates to the technical field of high-power microwave and millimeter wave, and mainly relates to real-time monitoring of high-power microwave power and mode.
Background
High-power microwave and millimeter wave technology is an important technology in a plurality of fields such as electronic countermeasure, radar, nuclear fusion plasma heating and the like. Power is one of the important parameters of microwaves that needs to be measured and monitored. In the higher frequency range, particularly in the millimeter wave regime, an over-mode waveguide is often used in order to increase power. Other modes except the main mode are easily generated in the over-mode waveguide, so that the mode monitoring is needed for the microwave in the over-mode waveguide. The current real-time power monitoring can be realized by a detector and the like; mode measurements cannot be made in real time, usually with thermal paper or infrared camera assistance, but power and mode measurements cannot be obtained simultaneously.
Disclosure of Invention
In order to solve the technical problem, the invention provides a high-power microwave power and mode real-time monitoring device which can measure the microwave power and mode simultaneously in real time.
The invention aims to provide a high-power microwave power and mode real-time monitoring device for measuring high-power microwave power and mode content distribution in real time. The invention calculates the microwave power and the mode content by measuring and analyzing the temperature distribution on the microwave reflecting surface.
The technical scheme of the invention is as follows: a high-power microwave power and mode real-time monitoring device comprises a monitoring elbow, a measurement and control cable and a measurement and control unit, wherein the monitoring elbow is connected to the measurement and control unit through the measurement and control cable;
the monitoring elbow comprises a microwave reflecting surface, a curved waveguide and a waveguide flange; the microwave reflecting surface comprises a base, a temperature sensor, a cable in the reflecting surface and the reflecting mirror surface, wherein the temperature sensor and the cable in the reflecting surface are positioned between the base and the reflecting mirror surface and are fixed in the microwave reflecting surface; the inner wall and the outer wall of the curved waveguide are hollowed out and used for packaging cable routing; the inner wall of the bent waveguide, the waveguide flange and the reflector are welded in a seamless mode;
the measurement and control cable comprises an encapsulation cable and an armored cable; the packaging cable is packaged between the inner wall and the outer wall of the bent waveguide; the armored cable is positioned outside the monitoring elbow, and the armored cable outer sheath and the microwave reflecting surface are anchored through polytetrafluoroethylene;
the measurement and control unit is a computer, an industrial personal computer or a PXI controller, a temperature sensor is arranged in the microwave reflecting surface, a temperature signal of the temperature sensor is transmitted to the measurement and control unit through a measurement and control cable, and the measurement and control unit is responsible for signal acquisition and analysis and calculation.
Furthermore, the base of the microwave reflecting surface is made of dispersion-strengthened oxygen-free copper material, and a water cooling pipeline is arranged inside the base to serve as a water cooling heat sink; the temperature sensor uses a thin film thermal resistor; the cable in the reflecting surface uses a polytetrafluoroethylene high-temperature wire; the reflecting mirror surface is made of polished dispersion-strengthened oxygen-free copper material.
Furthermore, a common Windows operating system runs on the hardware of the measurement and control unit, and special measurement and control software is developed based on Labview and is used for signal storage, signal analysis, microwave power calculation and mode content distribution calculation.
Furthermore, the microwave reflecting surface is connected to the measurement and control unit through a measurement and control cable, the measurement and control unit controls signal acquisition in a hardware triggering mode, and temperature distribution is analyzed by measuring the resistance value of the thermal resistor on the microwave reflecting surface, so that the microwave power and the mode content are further calculated.
Furthermore, the inner wall of the bent waveguide, the waveguide flange and the reflecting mirror surface are welded in a seamless mode, and the monitoring elbow is connected with the external straight waveguide through the waveguide flange.
Has the advantages that:
1. the microwave reflecting surface can be used for measuring the power and mode content distribution of high-power microwaves in real time, the microwave reflecting surface can measure temperature distribution, and the microwave power and the mode content distribution can be calculated simultaneously by measuring and analyzing the temperature distribution on the microwave reflecting surface.
2. The invention can conveniently measure the power and the mode of the high-power microwave in real time by using a single set of equipment, and is of great help to the measurement of the high-power microwave.
Drawings
FIG. 1 is a layout diagram of temperature sensor layout, measurement and control cables and measurement and control units on a microwave reflecting surface;
FIG. 2 is a layout diagram of a microwave reflecting surface with a reflecting mirror surface, a measurement and control cable and a measurement and control unit;
FIG. 3 is a view of the structure of the monitoring elbow and the measurement and control cable;
fig. 4 is a diagram of the connection of a monitoring bend (with the inner mirror surface hidden) to an over-mode waveguide.
Wherein: the device comprises a base 1, a temperature sensor 2, a cable 3 in a reflecting surface, a packaging cable 4, an armored cable 5, a measurement and control unit 6, a reflecting mirror surface 7, a bent waveguide 8, an inner wall 9, an outer wall 10, a waveguide flange 11 and an external straight waveguide 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention without creative efforts.
Referring to fig. 1, fig. 2, and fig. 3, the invention provides a high-power microwave power and mode real-time monitoring device, which includes a monitoring elbow, a measurement and control cable, and a measurement and control unit 6. The monitoring elbow comprises a microwave reflecting surface, a curved waveguide 8 and a waveguide flange 11. A temperature sensor 2 is arranged in the microwave reflecting surface, a temperature signal is transmitted to a measurement and control unit 6 through a measurement and control cable, and the measurement and control unit is responsible for signal acquisition and analysis and calculation.
The monitoring elbow comprises a microwave reflecting surface, a curved waveguide 8 and a waveguide flange 11. The bent waveguide and the waveguide flange are made of aluminum alloy materials, and the inner diameter of the bent waveguide is 63.5 mm. The microwave reflecting surface comprises a base 1, a temperature sensor 2, a cable 3 in the reflecting surface and a reflecting mirror surface 7. The base 1 is made of dispersion-strengthened oxygen-free copper material, a water cooling pipeline is arranged in the base, and the base is cooled by deionized water; the temperature sensor 2 uses a Pt100 thin film thermal resistor; the cable 3 in the reflecting surface is insulated by using high-temperature resistant Polytetrafluoroethylene (PTFE); the reflecting mirror surface 7 is made of polished dispersion-strengthened oxygen-free copper material. The temperature sensor 2 and the cable 3 in the reflecting surface are positioned between the base 1 and the reflecting mirror 7 and fixed inside the microwave reflecting surface. The inner wall 9 and the outer wall 10 of the curved waveguide 8 are hollowed out for packaging the cable 4. The curved waveguide inner wall 9 and the waveguide flange 11 and the mirror surface 7 are welded seamlessly. Referring to fig. 4, the monitoring bend is connected to an outer straight waveguide 12 via a waveguide flange 11.
The measurement and control cable comprises an encapsulation cable 4 and an armored cable 5. The encapsulation cable 4 is encapsulated between the inner wall 9 and the outer wall 10 of the curved waveguide 8 to which the monitoring elbow belongs; the armored cable is located outside the monitoring elbow. The joint of the packaging cable 4 and the armored cable 5 is anchored by polytetrafluoroethylene, and the outer sheath of the armored cable and the outer wall 10 of the curved waveguide 8 to which the monitoring elbow belongs are anchored by polytetrafluoroethylene.
The measurement and control unit 6 comprises hardware and software. The hardware adopts a common computer or an industrial personal computer or a PXI controller; and a Windows operating system runs on the hardware of the measurement and control unit, and special measurement and control software is compiled based on a Labview development platform. The compiled measurement and control software has an independent installation package, can be installed on a computer of a system above Windows7 and is used for signal storage, signal analysis, microwave power calculation and mode distribution calculation. The signal storage format is tdms, the measurement and control software can calculate and display the microwave power and the distribution thereof, can calculate and display the mode content distribution, and the calculation result can be stored in a database.
Specifically, the microwave reflecting surface is connected to the measurement and control unit through a measurement and control cable. The measurement and control unit controls signal acquisition in a hardware triggering mode, and analyzes temperature distribution by measuring the resistance value of a thermal resistor on the microwave reflecting surface, so that the microwave power and the mode content are further calculated.
Although illustrative embodiments of the present invention have been described above to facilitate the understanding of the present invention by those skilled in the art, it should be understood that the present invention is not limited to the scope of the embodiments, but various changes may be apparent to those skilled in the art, and it is intended that all inventive concepts utilizing the inventive concepts set forth herein be protected without departing from the spirit and scope of the present invention as defined and limited by the appended claims.
Claims (5)
1. A high power microwave power and mode real-time monitoring device, characterized by: the device comprises a monitoring elbow, a measurement and control cable and a measurement and control unit, wherein the monitoring elbow is connected to the measurement and control unit through the measurement and control cable;
the monitoring elbow comprises a microwave reflecting surface, a curved waveguide and a waveguide flange; the microwave reflecting surface comprises a base, a temperature sensor, a cable in the reflecting surface and the reflecting mirror surface, wherein the temperature sensor and the cable in the reflecting surface are positioned between the base and the reflecting mirror surface and are fixed in the microwave reflecting surface; the inner wall and the outer wall of the bent waveguide are hollowed out and used for packaging cable routing; the inner wall of the bent waveguide, the waveguide flange and the reflector are welded in a seamless mode;
the measurement and control cable comprises an encapsulation cable and an armored cable; the packaging cable is packaged between the inner wall and the outer wall of the bent waveguide; the armored cable is positioned outside the monitoring elbow, and the armored cable outer sheath and the microwave reflecting surface are anchored through polytetrafluoroethylene;
the measurement and control unit is a computer, an industrial personal computer or a PXI controller, a temperature sensor is arranged in the microwave reflecting surface, a temperature signal of the temperature sensor is transmitted to the measurement and control unit through a measurement and control cable, and the measurement and control unit is responsible for signal acquisition and analysis and calculation.
2. The high power microwave power and mode real-time monitoring device according to claim 1, characterized in that:
the base of the microwave reflecting surface is made of dispersion strengthened oxygen-free copper material, and a water cooling pipeline is arranged inside the base to be used as a water cooling heat sink; the temperature sensor uses a thin film thermal resistor; the cable in the reflecting surface uses a polytetrafluoroethylene high-temperature wire; the reflecting mirror surface is made of polished dispersion-strengthened oxygen-free copper material.
3. The high power microwave power and mode real-time monitoring device according to claim 1, characterized in that:
a Windows operating system runs on the hardware of the measurement and control unit, measurement and control software is developed based on Labview and is used for signal storage, signal analysis, microwave power calculation and mode content distribution calculation.
4. The high power microwave power and mode real-time monitoring device according to claim 1, characterized in that:
the microwave reflecting surface is connected to the measurement and control unit through a measurement and control cable, the measurement and control unit controls signal acquisition in a hardware triggering mode, and temperature distribution is analyzed by measuring the resistance value of a thermal resistor on the microwave reflecting surface, so that the microwave power and the mode content are further calculated.
5. The high power microwave power and mode real-time monitoring device according to claim 1, characterized in that:
the inner wall of the bent waveguide, the waveguide flange and the reflector surface are welded in a seamless mode, and the monitoring elbow is connected with the external straight waveguide through the waveguide flange.
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| CN202110098113.XA CN112946361B (en) | 2021-01-25 | 2021-01-25 | High-power microwave power and mode real-time monitoring equipment |
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| CN202110098113.XA CN112946361B (en) | 2021-01-25 | 2021-01-25 | High-power microwave power and mode real-time monitoring equipment |
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| CN112946361A CN112946361A (en) | 2021-06-11 |
| CN112946361B true CN112946361B (en) | 2022-07-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027387A1 (en) * | 1994-03-31 | 1995-10-12 | Martin Mariette Energy Systems, Inc. | Variable frequency microwave heating apparatus |
| CN103280619A (en) * | 2013-04-28 | 2013-09-04 | 电子科技大学 | Millimeter wave micropore coupler for measuring high power |
| CN104199492A (en) * | 2014-08-15 | 2014-12-10 | 北京无线电计量测试研究所 | Temperature regulating device for measuring radio frequency/microwave power |
| CN105552506A (en) * | 2014-10-30 | 2016-05-04 | 核工业西南物理研究院 | Hole-coupling directional coupler for millimeter-wave-band megawatt microwave parameter measurement |
| CN106772186A (en) * | 2017-03-07 | 2017-05-31 | 北京无线电计量测试研究所 | A kind of replacement efficiency measurement method and system of double load waveguide calorimeters |
| CN109587858A (en) * | 2019-01-21 | 2019-04-05 | 电子科技大学中山学院 | Optical fiber array thermal image acquisition device applied to high-power microwave heating |
-
2021
- 2021-01-25 CN CN202110098113.XA patent/CN112946361B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027387A1 (en) * | 1994-03-31 | 1995-10-12 | Martin Mariette Energy Systems, Inc. | Variable frequency microwave heating apparatus |
| CN103280619A (en) * | 2013-04-28 | 2013-09-04 | 电子科技大学 | Millimeter wave micropore coupler for measuring high power |
| CN104199492A (en) * | 2014-08-15 | 2014-12-10 | 北京无线电计量测试研究所 | Temperature regulating device for measuring radio frequency/microwave power |
| CN105552506A (en) * | 2014-10-30 | 2016-05-04 | 核工业西南物理研究院 | Hole-coupling directional coupler for millimeter-wave-band megawatt microwave parameter measurement |
| CN106772186A (en) * | 2017-03-07 | 2017-05-31 | 北京无线电计量测试研究所 | A kind of replacement efficiency measurement method and system of double load waveguide calorimeters |
| CN109587858A (en) * | 2019-01-21 | 2019-04-05 | 电子科技大学中山学院 | Optical fiber array thermal image acquisition device applied to high-power microwave heating |
Non-Patent Citations (1)
| Title |
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| W波段功率探头自动定标设计与实现;祝佳等;《自动化与仪表》;20130715(第07期);全文 * |
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