CN111490358B - Radar negative electromagnetic wave absorption equipment and absorption method - Google Patents
Radar negative electromagnetic wave absorption equipment and absorption method Download PDFInfo
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- CN111490358B CN111490358B CN202010335483.6A CN202010335483A CN111490358B CN 111490358 B CN111490358 B CN 111490358B CN 202010335483 A CN202010335483 A CN 202010335483A CN 111490358 B CN111490358 B CN 111490358B
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- radar
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Plasma Technology (AREA)
Abstract
The invention belongs to the technical field of radars, and particularly relates to radar negative electromagnetic wave absorption equipment and a radar negative electromagnetic wave absorption method, wherein the radar negative electromagnetic wave absorption equipment comprises a base, wherein a plasma liquid driving mechanism is arranged inside the base; the top of the base is hinged with a radar, and a linear driving source is fixedly arranged on the outer surface of the bottom of the radar; the inner wall of the radar is provided with a plasma wave-absorbing device, and a plasma liquid driving mechanism drives plasma liquid into the plasma wave-absorbing device and then sprays the plasma liquid out; the excircle surface of radar articulates there is ripples flip, and the upper surface of inhaling ripples flip is provided with scattering mechanism. This radar negative electromagnetic wave absorbs equipment and absorption method through setting up plasma and inhale the wave device, can realize absorbing the effect to radar inner wall under the prerequisite that does not hinder normal use, and the apron covers in the mounting groove during the use, and when not using, the apron is turned up, and the electromagnetic wave in the release plasma liquid absorbs the radar, is difficult for discovering, easily hides.
Description
Technical Field
The invention relates to the technical field of radars, in particular to radar negative electromagnetic wave absorption equipment and a radar negative electromagnetic wave absorption method.
Background
Radar, i.e. radio methods find objects and determine their spatial position. Therefore, radar is also referred to as "radiolocation". Radars are electronic devices that detect objects using electromagnetic waves. The radar emits electromagnetic waves to irradiate a target and receives the echo of the target, so that information such as the distance from the target to an electromagnetic wave emission point, the distance change rate (radial speed), the azimuth and the altitude is obtained.
The existing radar is easy to be discovered and identified by other radars in the actual use process, the hiding performance is not enough, especially for military outdoor mobile radars, the other side radar is easy to be discovered and exposed when being scanned under the condition of not using the mobile radar, and the remote attack is easy to be suffered at the moment; if the protective canvas with the hiding performance is covered by people after not being used, much uncertainty is caused, and the hiding speed is not fast enough.
Disclosure of Invention
The invention provides a radar negative electromagnetic wave absorption device and method based on the technical problem that the hiding performance or the coverage speed of the existing radar is not enough when the existing radar is not used.
The invention provides radar negative electromagnetic wave absorption equipment and a radar negative electromagnetic wave absorption method, which comprise a base, wherein a plasma liquid driving mechanism is arranged in the base;
the top of the base is hinged with a radar, and a linear driving source is fixedly mounted on the outer surface of the bottom of the radar;
the inner wall of the radar is provided with a plasma wave-absorbing device, and the plasma liquid driving mechanism drives the plasma liquid into the plasma wave-absorbing device and then sprays the plasma liquid out;
the outer circle surface of the radar is hinged with a wave-absorbing flip cover, and the upper surface of the wave-absorbing flip cover is provided with a scattering mechanism;
inhale ripples flip's articulated department fixed mounting has the gear train, the sharp driving source passes through the gear train drive inhale the articulated rotation of ripples flip.
Preferably, the plasma liquid driving mechanism comprises a circulating cavity, the circulating cavity is arranged in the base, and a plasma liquid generator and a submersible pump are fixedly mounted on the inner bottom wall of the circulating cavity respectively.
Preferably, a water outlet pipe is fixedly communicated with the water outlet end of the submersible pump, the top end of the water outlet pipe is communicated into the plasma wave-absorbing device, and the plasma liquid used by the plasma wave-absorbing device flows back into the circulation cavity through a return pipe.
Preferably, the plasma wave-absorbing device comprises a releasing mechanism and a mounting groove, the mounting groove is formed in the inner wall of the radar, a cover plate is hinged to the inner side wall of the mounting groove through a pin shaft, and the releasing mechanism controls the cover plate to be opened and reset.
Preferably, the surfaces of the two ends of the pin shaft are movably sleeved with torsion springs, and the free ends of the two ends of the torsion springs are respectively fixedly connected with the inner wall of the mounting groove and the surface of the cover plate;
the lower fixed surface of apron installs the shower nozzle, the shower nozzle with the top of outlet pipe is fixed to be communicated, the interior diapire of mounting groove with the top of back flow is fixed to be communicated.
Preferably, release mechanism includes the through wires hole, the through wires hole is seted up in the inside wall of the articulated symmetry of department of mounting groove, the lower fixed surface of apron installs the stay cord, the inside fixed mounting of base has electromagnetic telescopic rod, the stay cord pass behind the through wires hole with electromagnetic telescopic rod's flexible end fixed connection.
Preferably, the wave absorbing mechanism is arranged on the upper surface of the wave absorbing flip cover and comprises a wave absorbing cone and a wave absorbing taper hole, the wave absorbing cone and the wave absorbing taper hole absorb and scatter electromagnetic waves, and the surface of the wave absorbing cone and the inner wall of the wave absorbing taper hole are both coated with micro carbon coils.
Preferably, the linear driving source includes the pneumatic cylinder, the tail end of pneumatic cylinder with the lower surface of radar is articulated, the top of pneumatic cylinder is fixed through the bearing frame the lower surface of radar, the piston rod outer end fixedly connected with rack of pneumatic cylinder, drive behind rack and the gear train meshing inhale ripples flip and rotate.
Preferably, the absorption method is as follows: when the radar is used, a hydraulic cylinder is controlled to be started, the hydraulic cylinder drives a rack to be meshed with a gear set and then drives a wave-absorbing flip cover to rotate and open, and the radar is normally used;
secondly, when the radar is not used for a long time and does not need to move, the electromagnetic telescopic rod is controlled to be started, the electromagnetic telescopic rod is started upwards, the pull rope is loosened, the cover plate is hinged and turned over under the action of the torsion spring, the plasma liquid generator and the submersible pump are started, and the plasma liquid is pumped out by the submersible pump and then is sprayed out from the spray head;
and step three, when the radar needs to move after being used, controlling the hydraulic cylinder to be started reversely, and enabling the wave-absorbing flip cover to rotate reversely to reset so as to scatter the transmitted electromagnetic waves.
The beneficial effects of the invention are as follows:
1. through setting up plasma wave-absorbing device, can realize absorbing the effect of ripples under the prerequisite that does not hinder normal use to the radar inner wall, during the use apron covers in the mounting groove, and when not using, the apron is turned up, and release plasma liquid absorbs the electromagnetic wave in the radar, is difficult for discovering, easily hides.
2. Through setting up and inhale ripples flip, its upper surface can realize inhaling the ripples function, and the lower surface can set to the material the same with the radar inner wall, increases circular arc degree and area, and whole journey need not the manual work, as long as control corresponding switch can, efficient, fast.
Drawings
Fig. 1 is a schematic diagram of a radar negative electromagnetic wave absorption apparatus and a radar negative electromagnetic wave absorption method according to the present invention;
fig. 2 is a perspective view of a radar structure of a device and a method for absorbing negative electromagnetic waves of a radar according to the present invention;
FIG. 3 is a top view of a wave-absorbing flip structure of the radar negative electromagnetic wave absorption device and the absorption method provided by the present invention;
FIG. 4 is a perspective view of a plasma wave-absorbing device of the radar negative electromagnetic wave absorption apparatus and the absorption method according to the present invention;
FIG. 5 is a schematic diagram of wave-absorbing scattering of a wave-absorbing flip structure of the radar negative electromagnetic wave absorption device and the absorption method provided by the invention;
fig. 6 is a structural installation diagram of a wave-absorbing canvas of the radar negative electromagnetic wave absorption device and the absorption method provided by the invention.
In the figure: 1. a base; 11. a circulation chamber; 12. a plasma liquid generator; 13. a submersible pump; 14. a water outlet pipe; 15. a return pipe; 2. a radar; 21. mounting grooves; 22. a cover plate; 23. a torsion spring; 24. a spray head; 25. threading holes; 26. pulling a rope; 27. an electromagnetic telescopic rod; 3. the wave-absorbing flip cover; 31. a wave-absorbing cone; 32. wave-absorbing taper holes; 33. a micro-carbon coil; 34. wave-absorbing canvas; 4. a gear set; 41. a hydraulic cylinder; 42. a rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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, and not all of the embodiments.
Referring to fig. 1-3, a radar negative electromagnetic wave absorption device and method comprises a base 1, wherein a plasma liquid driving mechanism is arranged inside the base 1;
further, the plasma liquid driving mechanism comprises a circulating cavity 11, the circulating cavity 11 is arranged inside the base 1, and a plasma liquid generator 12 and a submersible pump 13 are fixedly mounted on the inner bottom wall of the circulating cavity 11 respectively.
Furthermore, a water outlet pipe 14 is fixedly communicated with a water outlet end of the submersible pump 13, the top end of the water outlet pipe 14 is communicated to the inside of the plasma wave-absorbing device, and the plasma liquid used by the plasma wave-absorbing device flows back to the inside of the circulation cavity 11 through a return pipe 15.
The top of the base 1 is hinged with a radar 2, and the outer surface of the bottom of the radar 2 is fixedly provided with a linear driving source;
the inner wall of the radar 2 is provided with a plasma wave-absorbing device, and a plasma liquid driving mechanism drives plasma liquid into the plasma wave-absorbing device and then sprays the plasma liquid out;
further, the plasma wave absorbing device comprises a releasing mechanism and a mounting groove 21, the mounting groove 21 is arranged on the inner wall of the radar 2, a cover plate 22 is hinged to the inner side wall of the mounting groove 21 through a pin shaft, and the releasing mechanism controls the opening and resetting of the cover plate 22.
Furthermore, the surfaces of the two ends of the pin shaft are movably sleeved with a torsion spring 23, and the free ends of the two ends of the torsion spring 23 are respectively fixedly connected with the inner wall of the mounting groove 21 and the surface of the cover plate 22;
the lower surface of the cover plate 22 is fixedly provided with a spray head 24, the spray head 24 is fixedly communicated with the top end of the water outlet pipe 14, and the inner bottom wall of the mounting groove 21 is fixedly communicated with the top of the return pipe 15.
Furthermore, the release mechanism comprises a threading hole 25, the threading hole 25 is formed in the symmetrical inner side wall of the hinge position of the mounting groove 21, a pull rope 26 is fixedly mounted on the lower surface of the cover plate 22, an electromagnetic telescopic rod 27 is fixedly mounted inside the base 1, and the pull rope 26 penetrates through the threading hole 25 and then is fixedly connected with the telescopic end of the electromagnetic telescopic rod 27;
through setting up plasma and inhale wave device, can realize absorbing the effect to 2 inner walls of radar under the prerequisite that do not hinder normal use, apron 22 covers in mounting groove 21 during the use, and when not using, apron 22 turns up, and release plasma liquid absorbs the electromagnetic wave in radar 2, and is difficult for discovering, easily hides.
The outer circle surface of the radar 2 is hinged with a wave-absorbing flip cover 3;
the wave absorbing canvas 34 with wave absorbing function and camouflage color is further arranged on the upper surface of the wave absorbing flip cover 3, so that the wave absorbing and hiding effects are further improved;
the upper surface of the wave-absorbing flip cover 3 is provided with a scattering mechanism;
furthermore, the wave absorbing mechanism is arranged on the upper surface of the wave absorbing flip cover 3 and comprises a wave absorbing cone 31 and a wave absorbing taper hole 32, and the wave absorbing cone 31 and the wave absorbing taper hole 32 absorb and scatter electromagnetic waves;
micro carbon coils 33 are coated on the surface of the wave-absorbing cone 31 and the inner wall of the wave-absorbing cone hole 32, the micro carbon coils 33 generate induced current in a varying electromagnetic field by using a special three-dimensional spiral structure of the micro carbon coils, and finally, energy is released in a heat energy mode to achieve the effect of efficiently absorbing electromagnetic waves;
through setting up and inhale ripples flip, its upper surface can realize inhaling the ripples function, and the lower surface can set to the material the same with 2 inner walls of radar, increases circular arc degree and area, and whole journey need not the manual work, as long as control corresponding switch can, efficient, fast.
A gear set 4 is fixedly arranged at the hinged position of the wave-absorbing flip cover 3;
providing the gears in the gear set 4 as a non-metallic material, such as rubber;
the linear driving source drives the wave-absorbing flip cover 3 to hinge through the gear set 4;
further, the linear driving source comprises a hydraulic cylinder 41, the tail end of the hydraulic cylinder 41 is hinged to the lower surface of the radar 2, the top of the hydraulic cylinder 41 is fixed to the lower surface of the radar 2 through a bearing seat, a rack 42 is fixedly connected to the outer end of a piston rod of the hydraulic cylinder 41, and the rack 42 is meshed with the gear set 4 to drive the wave-absorbing flip 3 to rotate;
the surface of the hydraulic cylinder 41 is subjected to wave absorbing treatment, and a wave absorbing material can be coated on the surface of the hydraulic cylinder, so that the hydraulic cylinder is hidden better.
Further, the absorption method comprises the following steps: step one, when the radar 2 is used, the hydraulic cylinder 41 is controlled to be started, the hydraulic cylinder 41 drives the rack 42 to be meshed with the gear set 4 and then drives the wave-absorbing flip cover 3 to rotate and open, and the radar 2 is normally used;
step two, when the radar 2 is not used for a while and does not need to move, controlling the electromagnetic telescopic rod 27 to start, enabling the electromagnetic telescopic rod 27 to start upwards, loosening the pull rope 26, hinging and opening the cover plate 22 under the action of the torsion spring 23, starting the plasma liquid generator 12 and the submersible pump 13, and pumping out the plasma liquid by the submersible pump 13 and then spraying out the plasma liquid from the spray head 24;
and step three, when the radar 2 needs to move after being used, the hydraulic cylinder 41 is controlled to be started reversely, the wave-absorbing flip cover 3 rotates reversely to reset, and the transmitted electromagnetic waves are scattered.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A radar negative electromagnetic wave absorption device comprises a base (1), and is characterized in that: a plasma liquid driving mechanism is arranged in the base (1);
the top of the base (1) is hinged with a radar (2), and a linear driving source is fixedly installed on the outer surface of the bottom of the radar (2);
the inner wall of the radar (2) is provided with a plasma wave-absorbing device, and the plasma liquid driving mechanism drives the plasma liquid into the plasma wave-absorbing device and then sprays out the plasma liquid;
the outer circle surface of the radar (2) is hinged with a wave-absorbing flip cover (3), and the upper surface of the wave-absorbing flip cover (3) is provided with a scattering mechanism;
a gear set (4) is fixedly installed at the hinged position of the wave-absorbing flip cover (3), and the linear driving source drives the wave-absorbing flip cover (3) to rotate in a hinged mode through the gear set (4);
the plasma liquid driving mechanism comprises a circulating cavity (11), the circulating cavity (11) is arranged in the base (1), and a plasma liquid generator (12) and a submersible pump (13) are fixedly mounted on the inner bottom wall of the circulating cavity (11) respectively;
a water outlet pipe (14) is fixedly communicated with the water outlet end of the submersible pump (13), the top end of the water outlet pipe (14) is communicated to the inside of the plasma wave-absorbing device, and plasma liquid used by the plasma wave-absorbing device flows back to the inside of the circulation cavity (11) through a return pipe (15);
the plasma wave absorbing device comprises a releasing mechanism and a mounting groove (21), wherein the mounting groove (21) is formed in the inner wall of the radar (2), a cover plate (22) is hinged to the inner side wall of the mounting groove (21) through a pin shaft, and the releasing mechanism controls the opening and resetting of the cover plate (22).
2. The apparatus for absorbing negative electromagnetic waves for radar according to claim 1, wherein: the surfaces of two ends of the pin shaft are movably sleeved with torsion springs (23), and free ends of two ends of each torsion spring (23) are fixedly connected with the inner wall of the mounting groove (21) and the surface of the cover plate (22) respectively;
the lower surface fixed mounting of apron (22) has shower nozzle (24), shower nozzle (24) with the top of outlet pipe (14) is fixed to be communicated, the interior diapire of mounting groove (21) with the top of back flow pipe (15) is fixed to be communicated.
3. The apparatus for absorbing negative electromagnetic waves for radar according to claim 2, wherein: release mechanism includes through wires hole (25), through wires hole (25) are seted up in the inside wall of the articulated symmetry of mounting groove (21), the lower fixed surface of apron (22) installs stay cord (26), the inside fixed mounting of base (1) has electromagnetic telescopic rod (27), stay cord (26) pass behind through wires hole (25) with the flexible end fixed connection of electromagnetic telescopic rod (27).
4. The apparatus for absorbing negative electromagnetic waves for radar according to claim 1, wherein: the wave-absorbing flip cover is characterized in that a wave-absorbing mechanism is arranged on the upper surface of the wave-absorbing flip cover (3), the wave-absorbing mechanism comprises a wave-absorbing cone (31) and a wave-absorbing taper hole (32), the wave-absorbing cone (31) and the wave-absorbing taper hole (32) absorb and scatter electromagnetic waves, and the surface of the wave-absorbing cone (31) and the inner wall of the wave-absorbing taper hole (32) are coated with a micro carbon coil (33).
5. The apparatus for absorbing negative electromagnetic waves for radar according to claim 1, wherein: the linear driving source comprises a hydraulic cylinder (41), the tail end of the hydraulic cylinder (41) is hinged to the lower surface of the radar (2), the top of the hydraulic cylinder (41) is fixed to the lower surface of the radar (2) through a bearing seat, a rack (42) is fixedly connected to the outer end of a piston rod of the hydraulic cylinder (41), and the rack (42) is meshed with the gear set (4) and then drives the wave-absorbing flip cover (3) to rotate.
6. An absorption method of a radar negative electromagnetic wave absorbing apparatus according to any one of claims 1 to 5, the absorption method comprising: step one, when the radar (2) is used, the hydraulic cylinder (41) is controlled to be started, the wave-absorbing flip cover (3) is driven to rotate and open by the gear set (4), and the radar (2) is normally used;
secondly, when the radar (2) is suspended for use and does not need to move, the electromagnetic telescopic rod (27) is controlled to be started, the cover plate (22) is hinged and turned over under the action of the torsion spring (23), the plasma liquid generator (12) and the submersible pump (13) are started, and the plasma liquid is pumped out by the submersible pump (13) and then is sprayed out from the spray head (24);
and step three, when the radar (2) needs to move after being used, the hydraulic cylinder (41) is controlled to be started reversely, the wave-absorbing flip cover (3) rotates reversely to reset, and the emitted electromagnetic waves are scattered.
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| CN202010335483.6A CN111490358B (en) | 2020-04-24 | 2020-04-24 | Radar negative electromagnetic wave absorption equipment and absorption method |
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| CN202010335483.6A CN111490358B (en) | 2020-04-24 | 2020-04-24 | Radar negative electromagnetic wave absorption equipment and absorption method |
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| CN111490358B true CN111490358B (en) | 2021-04-30 |
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| CN112002981B (en) * | 2020-08-07 | 2021-04-06 | 广州初曲科技有限公司 | Mobile communication antenna structure with electric control adjustment function |
| CN113747013B (en) * | 2021-09-03 | 2023-03-24 | 福建星宏新材料科技有限公司 | Anti-electromagnetic wave detection camera and anti-detection method |
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| CN209086425U (en) * | 2018-08-28 | 2019-07-09 | 阿里巴巴集团控股有限公司 | Radar protection device and radar component |
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| US6445134B1 (en) * | 1999-11-30 | 2002-09-03 | Environmental Surface Technologies | Inner/outer coaxial tube arrangement for a plasma pinch chamber |
| JP5869337B2 (en) * | 2011-12-28 | 2016-02-24 | 上田日本無線株式会社 | Radome |
| CN105775165A (en) * | 2016-03-08 | 2016-07-20 | 南京航空航天大学 | Full-wave band hiding satellite based on on-orbit radar |
| CN206485179U (en) * | 2016-12-30 | 2017-09-12 | 衡阳泰豪通信车辆有限公司 | A kind of foldable top cover of square cabin with radar invisible function |
| CN206884837U (en) * | 2017-04-27 | 2018-01-16 | 安徽四创电子股份有限公司 | A kind of high motor-driven Large Radar car |
| CN107677998B (en) * | 2017-10-18 | 2021-07-23 | 四川嘉义雷科电子技术有限公司 | Microwave radar capable of improving installation efficiency |
| CN209719624U (en) * | 2018-12-27 | 2019-12-03 | 广东泛珠勘察设计有限公司 | One kind being based on the lossless Ground Penetrating Radar device of broadband burst pulse electromagnetic wave |
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| WO2018222569A1 (en) * | 2017-05-31 | 2018-12-06 | Brilliant Light Power, Inc. | Magnetohydrodynamic electric power generator |
| CN209086425U (en) * | 2018-08-28 | 2019-07-09 | 阿里巴巴集团控股有限公司 | Radar protection device and radar component |
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