CN106428625A - Low-scattering carrier used for RCS test - Google Patents
Low-scattering carrier used for RCS test Download PDFInfo
- Publication number
- CN106428625A CN106428625A CN201610825510.1A CN201610825510A CN106428625A CN 106428625 A CN106428625 A CN 106428625A CN 201610825510 A CN201610825510 A CN 201610825510A CN 106428625 A CN106428625 A CN 106428625A
- Authority
- CN
- China
- Prior art keywords
- low scattering
- scattering carrier
- carrier
- low
- rcs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a low-scattering carrier used for an RCS test. The low-scattering carrier used for the RCS test comprises an upper surface and a lower surface, wherein the lower surface is a smooth curved surface; the upper surface is a plane and in seamless connection with the lower surface; a flange connector is arranged at the middle of the upper surface and used for installing a part to be subjected to the RCS test. According to the low-scattering carrier used for the RCS test, the low-scattering carrier is designed to be integrated with the to-be-tested part in structure, the smooth close connection is realized, scattering of the edge of the part is eliminated, the cavity structure of the part is also shielded, the actual loading status of the part is better simulated, and thus the part can be subjected to RCS measurement assessment more accurately.
Description
Technical field
The present invention relates to electromagnetic scattering fields of measurement, more particularly to a kind of low scattering carrier for RCS test.
Background technology
Aircraft will consider the Stealth Fighter test problem of all parts after the design of overall Stealth shape is completed.Portion
Part is once kept apart with body, the edge of part, interior structure of burying will be made to expose outside, to part if being not added with any process
Tested, its edge, the interior scattering for burying structure will affect the test accuracy of part.
Accordingly, it would be desirable to a kind of can eliminate edge-of-part scattering, blocking parts inner-cavity structure low scattering carrier solve with
Upper problem.
Content of the invention
The present invention provides a kind of low scattering load that tests for RCS (Radar Cross Section, RCS)
Body, itself and test component integrated structure design, smooth and closely connect, edge-of-part scattering had both been eliminated, has blocked part again
Inner-cavity structure, and preferably simulate part actual installation when state, so as to allow the parts to more accurately carry out RCS survey
Amount assessment.
The present invention provides a kind of low scattering carrier for RCS test, including：Upper surface and lower surface；Wherein, lower surface
For smooth surface；Upper surface is plane, is seamlessly connected with lower surface；Upper surface middle part arranges flange-interface, carries out for installing
The part of RCS test.
Preferably, the upper surface be shaped as the water-drop-shaped comprising two opposite tip.
Preferably, the forward direction interior angle of the upper surface and backward interior angle are all between 10 degree and 60 degree；Wherein, forward direction interior angle
For the less angle in two point angles, backward interior angle is the relatively big angle in two point angles.
Preferably, the forward direction interior angle is 30 degree.
Preferably, the flange-interface depression is arranged at the upper surface.
Preferably, the low scattering carrier is hollow structure.
Preferably, the RCS 20dBm lower than the RCS of the part of the low scattering carrier2More than.
Preferably, the part is installed on the flange-interface by sunk screw；After installation, member head is to low with described
To consistent before scattering carrier, feature bottom edge and the upper surface flush, the gap between feature bottom and the upper surface
Pasted by aluminium foil；Wherein, to the direction residing for the forward direction interior angle before the low scattering carrier.
Preferably, the surface roughness Ra of the upper surface and the lower surface is less than 1.6.
Preferably, the length of the low scattering carrier is 0.5 to 3 meters with wide, a height of 0.2 to 0.4 meter.
As shown from the above technical solution, the low scattering carrier that the present invention is provided can eliminate edge-of-part scattering, occlusion part
State during the actual installation of part inner-cavity structure, preferably analog component, at the same in the range of the larger angle with relatively low rear to
Scattering, will not impact to the RCS of part test, so as to allow the parts to more accurately carry out rcs measurement assessment.
Description of the drawings
Fig. 1 is the low scattering carrier structure schematic diagram for RCS test of the embodiment of the present invention；
Fig. 2 is the low scattering carrier top view for RCS test of the embodiment of the present invention；
Fig. 3 is the low scattering carrier side view for RCS test of the embodiment of the present invention；
Fig. 4 is the low scattering carrier oblique view for RCS test of the embodiment of the present invention.
Specific embodiment
For making the objects, technical solutions and advantages of the present invention become more apparent, referring to the drawings and preferred reality is enumerated
Example is applied, the present invention is described in more detail.However, it is necessary to illustrate, many details that lists in description are only to be
The reader is made to have a thorough explanation to one or more aspects of the present invention, can also even without these specific details
Realize the aspects of the invention.
The present inventor considers that aircraft, after the design of overall Stealth shape is completed, will consider all parts
Stealth Fighter test problem.Part is once kept apart with body, and the edge of part, interior structure of burying will be made to expose outside, if
It is not added with any process just to test part, its edge, the interior scattering for burying structure will affect the test accuracy of part.In
It is that a kind of low scattering carrier is designed, shelters from the edge of part and interior bury structure, it is to avoid edge and interior structure of burying cause scattering shadow
Ring the testing precision of parts R CS.
Fig. 1 shows the structure of the low scattering carrier for RCS test of the present invention, and referring to Fig. 1, low scattering carrier includes
Upper surface 3, lower surface 4 and flange-interface 2.
Specifically, upper surface 3 is plane, to be seamlessly connected with lower surface 4.Lower surface 4 is smooth surface.Upper surface 3 and
Lower surface 4 has higher fineness, and the surface roughness Ra (profile arithmetic average error) of the two is respectively less than 1.6.
Flange-interface 2 is arranged at 3 middle part of upper surface, for installing the part 1 for carrying out RCS test.
In practical application, in order to effectively shelter from the edge of part 1 and interior bury structure, the depression of flange-interface 2 is arranged at low
The upper surface 3 of scattering carrier.So, after installation, 1 bottom of part can be flushed with low scattering carrier upper surface 3.Meanwhile, low scattering
It is hollow structure that carrier is bordering on the part of flange-interface 2, is both easy to accommodate the part that test component needs to hide, can mitigate load again
Body weight.
It is preferred that upper surface 3 be shaped as water-drop-shaped.Fig. 2 shows the low scattering carrier top view of the present invention, referring to figure
2, water-drop-shaped refers to figure of the in figure with horizontal direction as axis of symmetry, and upper and lower any portion is by two curves or a straight line
One contact of a curve is formed by connecting.Usually, water-drop-shaped figure contains two relative tips, and tip can be by straight line or curve structure
Become, two point angles of different sizes.Point angle is defined as follows：When tip is made up of straight line, two straight lines form point angle；Tip
When being made up of curve, by summit, point angle is formed with two straight lines of two contact of a curve.
In a preferred embodiment of the invention, the less angle in two point angles is for front to interior angle, and the direction residing for which is low
The forward direction of scattering carrier；Relatively big angle in two point angles is backward interior angle.
In concrete application, forward direction interior angle and backward interior angle are all between 10 degree and 60 degree.According to Electromagnetic Scattering Theory, forward direction
Interior angle is less, and the forward vertical Polarization scattering of low scattering carrier is less, but to be scattered in some frequency ranges bigger on the contrary for horizontal polarization.
Based on this, forward direction interior angle is preferably 30 degree in the present invention, and so arranging can make low scattering carrier in full frequency band with less
Scattering.
The low scattering carrier of above-mentioned setting has preferable surface current guide effect, part enter wardrobe to, lateral, backward
RCS test when, above-mentioned low scattering carrier all produce relatively low scattering, do not interfere with the accurate of test result.In actual measurement, low scattering
The RCS of carrier 20dBm lower than the RCS of part2More than.In addition, the above-mentioned shape of low scattering carrier also to have carrier less
Volume and weight.
During installation, part 1 is installed on flange-interface 2 by sunk screw, in the process, part 1 to low scattering
To being consistent before carrier.After installation, 1 bottom margin of part is flushed with upper surface 3, between 1 bottom of part and upper surface 3
Gap, by aluminium foil or conductive glue at screw.So, the edge of part and the interior structure loaded body that buries are blocked, and its RCS can
It is accurately measured.
In practical application, the length of low scattering carrier is 0.5 to 3 meters with wide, a height of 0.2 to 0.4 meter.Above-mentioned length and width refers to
Be 3 both direction of upper surface distance, height refer to lower surface 4 protrusion height.
It is pointed out that low scattering carrier adopts integrated structure design with target, it is easy to target measurement not disturb again
The accuracy of target RCS.Meanwhile, its flange-interface adopts General design, it is adaptable to various measured targets, and it is right only to need during test
Corresponding interface section is processed.
Fig. 3 shows the low scattering carrier side view of the present invention, and Fig. 4 shows the low scattering carrier oblique view of the present invention.
The low scattering carrier that the present invention is provided adopts integrated structure design with target, and both smooth and combine closely, gap,
Covered with aluminium foil or conducting resinl at screw, edge-of-part, inner-cavity structure scattering interference can be eliminated, reaches the actual installation of analog component
When state effect, this is most important to the real Stealth of obtaining widget.Above-mentioned low scattering carrier is applied to various electromagnetism
Scattering checkout area, allows target to carry out accurate measurement under various test environments.The present invention is reliably suitable for, it is easy to promote, meeting
Produce good economic benefit and social benefit.
One of ordinary skill in the art will appreciate that it is permissible to realize all or part of step in above-described embodiment method
Instruct related hardware to complete by program, the program can be stored in a computer read/write memory medium, such as：
ROM/RAM, magnetic disc, CD etc..
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of low scattering carrier for RCS test, it is characterised in that include：Upper surface and lower surface；Wherein,
Lower surface is smooth surface；
Upper surface is plane, is seamlessly connected with lower surface；
Upper surface middle part arranges flange-interface, for installing the part for carrying out RCS test.
2. low scattering carrier as claimed in claim 1, the upper surface be shaped as the water-drop-shaped comprising two opposite tip.
3. low scattering carrier as claimed in claim 2, the forward direction interior angle of the upper surface is with backward interior angle all at 10 degree and 60
Between degree；Wherein, forward direction interior angle is the less angle in two point angles, and backward interior angle is the relatively big angle in two point angles.
4. low scattering carrier as claimed in claim 3, the forward direction interior angle be.
5. low scattering carrier as claimed in claim 4, the flange-interface depression is arranged at the upper surface.
6. low scattering carrier as claimed in claim 5, the low scattering carrier be.
7. low scattering carrier as claimed in claim 6, the RCS 20dBm lower than the RCS of the part of the low scattering carrier2With
On.
8. low scattering carrier as claimed in claim 7, the part is installed on the flange-interface by sunk screw；Install
Afterwards, member head to consistent before the low scattering carrier, feature bottom edge and the upper surface flush, feature bottom and institute
The gap that states between upper surface is pasted by aluminium foil；Wherein, to the side residing for the forward direction interior angle before the low scattering carrier
To.
9. low scattering carrier as claimed in claim 8, the surface roughness Ra of the upper surface and the lower surface is less than
1.6.
10. the low scattering carrier as described in claim 1-9 is arbitrary, the length of the low scattering carrier is 0.5 to 3 meters with wide,
A height of 0.2 to 0.4 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825510.1A CN106428625B (en) | 2016-09-14 | 2016-09-14 | A kind of low scattering carrier for RCS tests |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825510.1A CN106428625B (en) | 2016-09-14 | 2016-09-14 | A kind of low scattering carrier for RCS tests |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106428625A true CN106428625A (en) | 2017-02-22 |
| CN106428625B CN106428625B (en) | 2018-06-08 |
Family
ID=58168322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825510.1A Active CN106428625B (en) | 2016-09-14 | 2016-09-14 | A kind of low scattering carrier for RCS tests |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106428625B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344980A (en) * | 2018-01-10 | 2018-07-31 | 中国空空导弹研究院 | A kind of chaff cloud simulator |
| CN108445463A (en) * | 2018-03-07 | 2018-08-24 | 北京环境特性研究所 | Low scattering part RCS test methods based on scattering center space filtering and carrier |
| CN109212504A (en) * | 2018-10-09 | 2019-01-15 | 北京环境特性研究所 | To scattering carrier low with what is laterally designed before taking into account |
| CN109613502A (en) * | 2018-12-10 | 2019-04-12 | 中国航发四川燃气涡轮研究院 | It is a kind of for assembling the low scattering shell of two-dimensional nozzle engine |
| CN111504952A (en) * | 2020-04-15 | 2020-08-07 | 成都飞机工业（集团）有限责任公司 | Low-scattering carrier with both horizontal polarization and vertical polarization and testing method thereof |
| CN112798560A (en) * | 2020-12-24 | 2021-05-14 | 中国航空工业集团公司西安飞机设计研究所 | Cavity inner wall scattering characteristic pre-estimation carrier |
| CN113075634A (en) * | 2021-03-29 | 2021-07-06 | 北京环境特性研究所 | RCS (Radar Cross section) evaluation carrier for vertical polarized waves |
| CN113075626A (en) * | 2021-03-31 | 2021-07-06 | 北京环境特性研究所 | Low-scattering carrier for darkroom background level evaluation test |
| CN113419224A (en) * | 2021-06-07 | 2021-09-21 | 西北工业大学 | Axisymmetric double-emission low-scattering carrier for RCS test and application method thereof |
| CN113532865A (en) * | 2021-06-24 | 2021-10-22 | 中国航发沈阳发动机研究所 | Low-scattering carrier suitable for various engines |
| CN114044164A (en) * | 2021-11-10 | 2022-02-15 | 北京环境特性研究所 | Low-scattering carrier for RCS (Radar Cross section) test of wing parts |
| CN114104331A (en) * | 2021-11-12 | 2022-03-01 | 北京环境特性研究所 | Wave absorber for reducing low-frequency scattering |
| CN114162347A (en) * | 2021-12-09 | 2022-03-11 | 北京环境特性研究所 | P-waveband low-scattering carrier and using method thereof |
| CN116629109A (en) * | 2023-05-16 | 2023-08-22 | 中国电子科技集团公司第五十四研究所 | Low-scattering carrier optimization design method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6639567B2 (en) * | 2001-09-14 | 2003-10-28 | Raytheon Company | Low radar cross section radome |
| CN201107406Y (en) * | 2007-11-23 | 2008-08-27 | 中国航天科工集团第二研究院二○七所 | Metal support for low RCS test |
| JP2013160705A (en) * | 2012-02-08 | 2013-08-19 | Mitsubishi Electric Corp | Radar cross-sectional area measurement system |
| CN203512020U (en) * | 2013-10-18 | 2014-04-02 | 深圳光启创新技术有限公司 | Wing structure |
-
2016
- 2016-09-14 CN CN201610825510.1A patent/CN106428625B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6639567B2 (en) * | 2001-09-14 | 2003-10-28 | Raytheon Company | Low radar cross section radome |
| CN201107406Y (en) * | 2007-11-23 | 2008-08-27 | 中国航天科工集团第二研究院二○七所 | Metal support for low RCS test |
| JP2013160705A (en) * | 2012-02-08 | 2013-08-19 | Mitsubishi Electric Corp | Radar cross-sectional area measurement system |
| CN203512020U (en) * | 2013-10-18 | 2014-04-02 | 深圳光启创新技术有限公司 | Wing structure |
Non-Patent Citations (1)
| Title |
|---|
| 刘晓春等: "飞机部件RCS测试用载体设计技术研究", 《现代雷达》 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344980A (en) * | 2018-01-10 | 2018-07-31 | 中国空空导弹研究院 | A kind of chaff cloud simulator |
| CN108445463A (en) * | 2018-03-07 | 2018-08-24 | 北京环境特性研究所 | Low scattering part RCS test methods based on scattering center space filtering and carrier |
| CN109212504A (en) * | 2018-10-09 | 2019-01-15 | 北京环境特性研究所 | To scattering carrier low with what is laterally designed before taking into account |
| CN109212504B (en) * | 2018-10-09 | 2023-10-20 | 北京环境特性研究所 | Low scattering carrier with both forward and sideways designs |
| CN109613502A (en) * | 2018-12-10 | 2019-04-12 | 中国航发四川燃气涡轮研究院 | It is a kind of for assembling the low scattering shell of two-dimensional nozzle engine |
| CN109613502B (en) * | 2018-12-10 | 2023-02-17 | 中国航发四川燃气涡轮研究院 | Low-scattering shell for assembling binary nozzle engine |
| CN111504952B (en) * | 2020-04-15 | 2021-09-07 | 成都飞机工业（集团）有限责任公司 | Low-scattering carrier with both horizontal polarization and vertical polarization and testing method thereof |
| CN111504952A (en) * | 2020-04-15 | 2020-08-07 | 成都飞机工业（集团）有限责任公司 | Low-scattering carrier with both horizontal polarization and vertical polarization and testing method thereof |
| CN112798560A (en) * | 2020-12-24 | 2021-05-14 | 中国航空工业集团公司西安飞机设计研究所 | Cavity inner wall scattering characteristic pre-estimation carrier |
| CN113075634B (en) * | 2021-03-29 | 2023-02-24 | 北京环境特性研究所 | RCS (radar cross section) evaluation carrier for vertical polarized waves |
| CN113075634A (en) * | 2021-03-29 | 2021-07-06 | 北京环境特性研究所 | RCS (Radar Cross section) evaluation carrier for vertical polarized waves |
| CN113075626A (en) * | 2021-03-31 | 2021-07-06 | 北京环境特性研究所 | Low-scattering carrier for darkroom background level evaluation test |
| CN113419224A (en) * | 2021-06-07 | 2021-09-21 | 西北工业大学 | Axisymmetric double-emission low-scattering carrier for RCS test and application method thereof |
| CN113532865A (en) * | 2021-06-24 | 2021-10-22 | 中国航发沈阳发动机研究所 | Low-scattering carrier suitable for various engines |
| CN113532865B (en) * | 2021-06-24 | 2022-06-07 | 中国航发沈阳发动机研究所 | Low-scattering carrier suitable for various engines |
| CN114044164A (en) * | 2021-11-10 | 2022-02-15 | 北京环境特性研究所 | Low-scattering carrier for RCS (Radar Cross section) test of wing parts |
| CN114104331A (en) * | 2021-11-12 | 2022-03-01 | 北京环境特性研究所 | Wave absorber for reducing low-frequency scattering |
| CN114104331B (en) * | 2021-11-12 | 2023-06-30 | 北京环境特性研究所 | Wave absorber for reducing low-frequency dispersion |
| CN114162347B (en) * | 2021-12-09 | 2023-06-27 | 北京环境特性研究所 | P-band low-scattering carrier and application method thereof |
| CN114162347A (en) * | 2021-12-09 | 2022-03-11 | 北京环境特性研究所 | P-waveband low-scattering carrier and using method thereof |
| CN116629109A (en) * | 2023-05-16 | 2023-08-22 | 中国电子科技集团公司第五十四研究所 | Low-scattering carrier optimization design method |
| CN116629109B (en) * | 2023-05-16 | 2024-05-24 | 中国电子科技集团公司第五十四研究所 | Low-scattering carrier optimization design method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106428625B (en) | 2018-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106428625A (en) | Low-scattering carrier used for RCS test | |
| CN107942330B (en) | A kind of radar scattering characteristic extracting method and system based on plasma near-field test | |
| CN106443611A (en) | RCS measurement method for weak scattering targets | |
| US10891970B2 (en) | Sound source detecting method and detecting device | |
| CN110954868A (en) | Low-scattering shell for engine suitable for electromagnetic test of external field wind environment | |
| CN105445566A (en) | Spherical multi-probe antenna test data processing method | |
| CN114044164B (en) | Low-scattering carrier for RCS (wing component handling System) test of wing component | |
| CN205580318U (en) | Measuring device | |
| Vogt | An optimized float for reliable radar tank level measurement in bypass pipes | |
| CN105527598A (en) | Field sensor calibration system and method | |
| CN107589420A (en) | A kind of interior of articles component detection method, apparatus and system | |
| CN105116393A (en) | Method for estimating flight height of high-altitude object and radar sectional area based on position fingerprint | |
| CN105891788A (en) | Rotary body for extracting echoes of metal support and echo extracting device | |
| CN108226684B (en) | Clamping rod attenuation distribution test fixture, test system and test method | |
| CN113075626A (en) | Low-scattering carrier for darkroom background level evaluation test | |
| CN208059773U (en) | A kind of parts profile degree cubing | |
| Son et al. | Reflection loss field visualization of curved RAS based on scanning free-space measurement and curvature compensation using perfect electric conductor | |
| CN104569942A (en) | Monostation radar target characteristic measurement method for identifying positions of synchronous scattering points | |
| CN207303350U (en) | Radar altimeter, radar installations and radar antenna | |
| CN106338629A (en) | Shape modification method used for metal support RCS estimation | |
| CN217227954U (en) | Low-scattering carrier for RCS test and evaluation of wing trailing edge | |
| Ozturk et al. | Vertex diffracted edge waves on a perfectly conducting plane angular sector | |
| Yu et al. | Arctangent function‐based third derivative attribute for characterisation of faults | |
| CN215599352U (en) | A low background bipyramid platform structural support for test of X wave band RCS | |
| CN204433084U (en) | A kind of inlet channel state switching structure of electromagnetism reference body model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |