CN105676196B - A kind of absorbing material plate locator of no echo scattering - Google Patents
A kind of absorbing material plate locator of no echo scattering Download PDFInfo
- Publication number
- CN105676196B CN105676196B CN201610146984.3A CN201610146984A CN105676196B CN 105676196 B CN105676196 B CN 105676196B CN 201610146984 A CN201610146984 A CN 201610146984A CN 105676196 B CN105676196 B CN 105676196B
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- metalwork
- plane
- flat part
- ring
- extraction valve
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Classifications
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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
- G01S7/40—Means for monitoring or calibrating
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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)
- Radar Systems Or Details Thereof (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention belongs to Radar Stealth Materials electric performance test technical field, more particularly to a kind of absorbing material plate locator of no echo scattering, it is made up of metalwork (3), falope ring (2) and extraction valve (4), it is plane (7) to have one side on metalwork (3), and has ring-shaped groove (6) in the side of the plane (7)；On the inside of falope ring (2) in embedded ring-shaped groove (6), outer lateral plane (7) side tilts；A through hole nearby is provided with metalwork (3) the plane domain center of area (5) position, extraction valve (4) is installed in hole, bonded together between through hole hole wall using fluid sealant.The device may be mounted on the low scattering turntable in RCS tests darkroom, significantly reduce due to the background clutter that supporting mechanism is present and brings, reflectance test and RCS tests suitable for all kinds of absorption flat plate parts, test reflectivity and RCS measuring accuracies are significantly improved on the premise of not increasing flat part and preparing cost.
Description
Technical field
The invention belongs to Radar Stealth Materials electric performance test technical field, and in particular to a kind of suction ripple of no echo scattering
Material plates positioner.
Background technology
It is the radar return for reducing various aircraft in military spacecraft exterior applications absorbing material, improves Stealth Fighter
Important means.Reflectivity index is to describe the key technical indexes of absorbing material absorbing property.
Two kinds of conventional reflection index of wave suction material method of testings are given in GJB2038A, first, segmental support method, it is led
It is to lie in a horizontal plane in absorbing material on support to want way, and sending and receiving antenna is separately fixed on segmental support on diverse location.The party
Tested absorbing material is nearer apart from background in method, and echo is overlapped mutually with background, and test result precision is affected, receive,
5 degree of angles be present between hair antenna, therefore, test result has certain influence with normal incidence test result.
Another reflectivity test method provided in GJB2038A is darkroom RCS methods, when this method is tested, it is desirable to will inhale
Wave material and flat part are disposed vertically.Now, in order to ensure that material plates part position is fixed, it usually needs be supported in lower section
And fixed with the adhesive tape of wave transparent, in this mode, the radar return of supported underneath material will also bring interference to test result.
If do not used supported underneath mechanism, metal fastenings is used at metal plate part rear, then needing will be flat for every of test
The plate back side is processed into the shapes such as groove or screw, and the cost of realization is too high.
As can be seen that for the reflectance test flat part of regular shape, there is angle in the existing equal difficulty of method of testing
Error or supporting construction echo interference are spent, measuring accuracy is influenceed to a certain extent.
The content of the invention
The invention aims to reduce the radar from background during existing stealth material reflectance test to return
Ripple, and a kind of absorbing material plate locator of no echo scattering is provided.
The technical scheme is that：
A kind of absorbing material plate locator of no echo scattering, is made up of, metal metalwork, falope ring and extraction valve
It is plane to have one side on part, and has ring-shaped groove in the side of the plane；The annular of embedded metalwork on the inside of described falope ring
In groove, the outer lateral plane side of falope ring tilts；Near the plane domain center of area position described in metalwork, it is logical to be provided with one
Hole, described extraction valve is installed in hole, bonded together between extraction valve and through hole hole wall using fluid sealant, realize sealing effect
Fruit, retention mechanism is installed in the side of metalwork, can be fixed together with metal base.
The foregoing absorbing material plate locator without echo scattering, be connected with after described extraction valve a plastic tube and
Air pump is evacuated, when air pump works, can be extracted out the air of metalwork center of area neighbouring position by plastic tube.
A plastic tube and pumping air pump are connected with after described extraction valve, can be by plastic tube by gold when air pump works
The air for belonging to part center of area position is extracted out, the center of area is nearby maintained negative pressure state.
The above-mentioned absorbing material plate locator without echo scattering, the device as follows can inhale flat part
It is attached to aerial：
(1) metalwork, falope ring, extraction valve of the device are assembled together and fixed installed in RCS darkrooms Test bench
On；
(2) plane being close to the flat part with radar absorbing on metalwork is placed, it is desirable to which flat part can be completely
Block metalwork and falope ring；
(3) plastic tube is connected with extraction valve, pumping air pump, booster air pump, flat part is attracted on metalwork
At plan-position, and flat part front is set to block metalwork and other mechanisms completely, now, between flat part and the metalwork center of area
Form the closed cavity of an approximation.By adjusting air pump working condition, the negative pressure in remote control cavity, ensureing flat part
It is skid-resistant simultaneously, avoid flat part from producing excessive deformation.
The device is fixed on the low scattering metallic support turntable in RCS darkrooms, and plastic tube used is after low scattering turntable
Side is drawn, and is blocked by low scattering turntable, to avoid tested radar wave from illuminating.What low scattering turntable was arranged in darkroom
Position is located at dead zone position, and its top is provided with motor and control servo control mechanism, the suction that described absorbing material scatters without echo
When wave material plate locator is arranged on turntable, this type device can be driven according to operational order and is fixed on device
Flat part rotates together.
Beneficial effects of the present invention：
The absorbing material plate locator without echo scattering of the present invention, the low scattering in RCS tests darkroom can be arranged on
On turntable, significantly reduce due to the background clutter that supporting mechanism is present and brings, suitable for the reflectivity of all kinds of absorption flat plate parts
Test and RCS tests, test reflectivity and RCS measuring accuracies are significantly improved on the premise of not increasing flat part and preparing cost.
Brief description of the drawings
The present invention shares 3 width accompanying drawings.
Fig. 1 is a kind of profile of the absorbing material plate locator of no echo scattering.
Fig. 2 is a kind of rear view of the absorbing material plate locator of no echo scattering.
Fig. 3 is that a kind of absorbing material plate locator of no echo scattering is fixed on the structural representation after low scattering turntable
Figure.
1- flat parts, 2- falope rings, 3- metalworks, 4- extraction valves, 5- metalwork center of areas position
6- ring-shaped grooves, 7- planes, 8- plastic tubes, 9- incidence radar waves, the low scattering turntables of 10-.
Embodiment
Below in conjunction with the accompanying drawings and most preferred embodiment the invention will be further described.
Embodiment 1
As shown in Figure 1-2, a kind of absorbing material plate locator of no echo scattering, by metalwork 3, the and of falope ring 2
Extraction valve 4 forms, and it is plane 7 to have one side on metalwork 3, and has ring-shaped groove 6 in the side of the plane 7；The inner side of falope ring 2 is embedding
Enter in the ring-shaped groove 6 of metalwork 3, the outer side of lateral plane 7 of falope ring 2 tilts；In the plane domain center of area position 5 of metalwork 3
A through hole nearby is provided with, extraction valve 4 is installed in hole, bonded together between extraction valve 4 and through hole hole wall using fluid sealant,
The side of metalwork 3 is provided with retention mechanism, is fixed together with metal base.A plastic tube 8 is connected with after extraction valve 4 and is taken out
Air pump, when air pump works, the air near metalwork center of area position 5 is extracted out by plastic tube 8, the center of area is nearby remained negative
Pressure condition.
The device as follows can adsorb flat part in the air：
The metalwork 3, falope ring 2, extraction valve 4 of the device are assembled together first to fix and tested installed in RCS darkrooms
On pedestal；
Secondly the plane 7 that the flat part 1 with radar absorbing is close on metalwork 3 is placed, it is desirable to the energy of flat part 1
Metalwork 3 and falope ring 2 are blocked completely；
Then plastic tube 8 is connected with extraction valve 4, pumping air pump, booster air pump, flat part 1 is attracted to metalwork 3
On the opening position of plane 7, and the front of flat part 1 is blocked metalwork 3 and other mechanisms, now, flat part 1 and metalwork completely
The closed cavity of an approximation is formed between the center of area 5, by adjusting air pump working condition, the negative pressure in remote control cavity,
Ensure that flat part 1 is skid-resistant simultaneously, avoid flat part 1 from producing excessive deformation.
The device is fixed on the low scattering metallic support turntable in RCS darkrooms, and plastic tube 8 used scatters turntable 10 from low
Rear is drawn, and is blocked by low scattering turntable 10, to avoid tested incident radar wave 9 from illuminating.Low scattering turntable 10 exists
The position arranged in darkroom is located at dead zone position, and its top is provided with motor and control servo control mechanism, the suction ripple of no echo scattering
When material plates positioner is arranged on turntable, this type device and the flat part being fixed on device are driven according to operational order
1 rotates together, as shown in Figure 3.
Claims (4)
- A kind of 1. absorbing material plate locator of no echo scattering, it is characterised in that：By metalwork (3), falope ring (2) and Extraction valve (4) forms, and is simultaneously plane (7), and have ring-shaped groove (6) in the side of the plane (7) on metalwork (3)；Silica gel On the inside of ring (2) in the ring-shaped groove (6) of embedded metalwork (3), falope ring (2) outer lateral plane (7) side tilts；In metalwork (3) plane domain center of area position (5) are nearby provided with a through hole, and extraction valve (4), extraction valve (4) and through hole hole wall are provided with hole Between bonded together using fluid sealant, retention mechanism is installed in the side of metalwork (3), one is fixed on metal base Rise.
- A kind of 2. absorbing material plate locator as claimed in claim 1 without echo scattering, it is characterised in that：Described A plastic tube (8) and aspiration pump are connected with after extraction valve (4), when being evacuated pump work, by plastic tube (8) by metalwork plane The air of region center of area position (5) nearby is extracted out, the center of area is nearby maintained negative pressure state.
- 3. a kind of absorbing material plate locator as claimed in claim 1 or 2 without echo scattering, it is characterised in that should Device as follows adsorbs flat part in the air：(1) metalwork (3), falope ring (2), extraction valve (4) of the device are assembled together to fix and tested installed in RCS darkrooms On pedestal；(2) plane (7) being close to the flat part (1) with radar absorbing on metalwork (3) is placed, it is desirable to flat part (1) metalwork (3) and falope ring (2) can be blocked completely；(3) plastic tube (8) is connected with extraction valve (4), aspiration pump, starts aspiration pump, flat part (1) is attracted to metalwork (3) plane (7) opening position on, and make flat part (1) front block metalwork (3) and other mechanisms completely, flat part (1) with The closed cavity of an approximation is formed between metalwork plane domain center of area position (5), by adjusting air pump working condition, remotely The negative pressure in cavity is controlled, is ensureing that flat part (1) is skid-resistant simultaneously, is avoiding flat part (1) from producing excessive deformation.
- A kind of 4. absorbing material plate locator as claimed in claim 3 without echo scattering, it is characterised in that the device It is fixed on the low scattering turntable (10) in RCS darkrooms, plastic tube used (8) is drawn from low scattering turntable (10) rear, and by Low scattering turntable (10) is blocked, to avoid tested incident radar wave (9) from illuminating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146984.3A CN105676196B (en) | 2016-03-15 | 2016-03-15 | A kind of absorbing material plate locator of no echo scattering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610146984.3A CN105676196B (en) | 2016-03-15 | 2016-03-15 | A kind of absorbing material plate locator of no echo scattering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105676196A CN105676196A (en) | 2016-06-15 |
| CN105676196B true CN105676196B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610146984.3A Active CN105676196B (en) | 2016-03-15 | 2016-03-15 | A kind of absorbing material plate locator of no echo scattering |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645794B (en) * | 2018-05-11 | 2021-01-01 | Tcl华星光电技术有限公司 | Reflectivity detection equipment and detection method thereof |
| CN111999713B (en) * | 2020-08-20 | 2023-06-09 | 北京环境特性研究所 | Pit, RCS microwave darkroom comprising pit and method for replacing bracket in darkroom |
| CN113922080A (en) * | 2021-09-25 | 2022-01-11 | 中国电子科技集团公司第二十研究所 | Airborne conformal low-RCS antenna housing |
Citations (5)
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|---|---|---|---|---|
| CN202649260U (en) * | 2012-05-30 | 2013-01-02 | 深圳市栢富电子有限公司 | Wave-absorbing assembly and microwave anechoic chamber |
| CN203825188U (en) * | 2014-04-18 | 2014-09-10 | 北京经纬恒润科技有限公司 | Microwave camera obscura |
| CN105242250A (en) * | 2015-11-25 | 2016-01-13 | 北京机电工程研究所 | Calibration device capable of facing very low radar cross-section (RCS) targets to measure |
| EP2966466A2 (en) * | 2014-06-16 | 2016-01-13 | Robert Bosch GmbH | Holding device for close range radar sensors |
| CN105242249A (en) * | 2015-11-25 | 2016-01-13 | 北京机电工程研究所 | Ultralow ambient level microwave unreflected chamber used for RCS testing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020091358A (en) * | 2001-05-30 | 2002-12-06 | 엘지이노텍 주식회사 | Apparatus for radar transmission check |
-
2016
- 2016-03-15 CN CN201610146984.3A patent/CN105676196B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202649260U (en) * | 2012-05-30 | 2013-01-02 | 深圳市栢富电子有限公司 | Wave-absorbing assembly and microwave anechoic chamber |
| CN203825188U (en) * | 2014-04-18 | 2014-09-10 | 北京经纬恒润科技有限公司 | Microwave camera obscura |
| EP2966466A2 (en) * | 2014-06-16 | 2016-01-13 | Robert Bosch GmbH | Holding device for close range radar sensors |
| CN105242250A (en) * | 2015-11-25 | 2016-01-13 | 北京机电工程研究所 | Calibration device capable of facing very low radar cross-section (RCS) targets to measure |
| CN105242249A (en) * | 2015-11-25 | 2016-01-13 | 北京机电工程研究所 | Ultralow ambient level microwave unreflected chamber used for RCS testing |
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| CN105676196A (en) | 2016-06-15 |
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