CN114295643A - Sample test box capable of simulating dispersion state of interference material, and system and method for testing dynamic wave absorbing performance of interference material - Google Patents
Sample test box capable of simulating dispersion state of interference material, and system and method for testing dynamic wave absorbing performance of interference material Download PDFInfo
- Publication number
- CN114295643A CN114295643A CN202111677657.8A CN202111677657A CN114295643A CN 114295643 A CN114295643 A CN 114295643A CN 202111677657 A CN202111677657 A CN 202111677657A CN 114295643 A CN114295643 A CN 114295643A
- Authority
- CN
- China
- Prior art keywords
- testing
- sample
- interference material
- air
- simulating
- 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
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a sample test box capable of simulating a dispersion state of an interference material, and a system and a method for testing dynamic wave-absorbing performance of the interference material, and relates to the field of testing dynamic wave-absorbing performance of the interference material. The sample testing box comprises a hollow box body, wherein air inlets are formed in two opposite side faces of the box body, and at least one of the other two opposite side faces is provided with an air outlet. The sample testing box can truly reflect the wave absorbing performance of the interference material floating in the air.
Description
Technical Field
The invention relates to the field of interference material dynamic wave-absorbing performance testing, in particular to a sample testing box capable of simulating a dispersion state of an interference material, and an interference material dynamic wave-absorbing performance testing system and method.
Background
The absorption type interferent has an action mechanism on radar waves, namely target echoes are attenuated through the absorption, scattering and other actions of each component material on the radar waves, so that the detectability of a protected target is reduced. The wave absorbing performance is a key factor for protecting a target of a self by combining interference between an absorption type interferent and a traditional foil strip means to effectively attenuate an incoming missile-guided radar wave. The existing wave-absorbing performance measuring method can only test the reflectivity or electromagnetic parameters of a static sample, and cannot test the dynamic wave-absorbing performance of an interference material floating in the air.
The wave-absorbing performance of the material can be measured by a direct measurement method and an indirect measurement method. The direct measurement method is a method of directly measuring the reflectance or calculating the reflectance from the measured data by simple operation. The direct measurement method includes a bow method, a coaxial method, an RCS test method and the like. The indirect measurement method is to measure the impedance of the material or the electromagnetic parameters of the material and then calculate the reflectivity of the material by using a formula. The waveguide method is one of the commonly used methods in indirect measurement methods, and is mainly used for testing electromagnetic parameters of materials and further calculating the wave-absorbing performance of the materials.
However, the above measurement method can only test the reflectivity or electromagnetic parameters of a static sample, and cannot test the dynamic wave absorbing performance of the interference material scattered in the air.
Disclosure of Invention
In view of the above, the present invention provides a sample testing box capable of simulating a dispersion state of an interference material, and a system and a method for testing a dynamic wave absorption performance of an interference material, which can simulate and test a dynamic wave absorption performance of an interference material floating in the air, thereby solving a technical problem that an existing testing method cannot measure a dynamic wave absorption performance of an interference material.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the sample testing box capable of simulating the dispersion state of the interference material, which is provided by the invention, the sample testing box comprises a hollow box body, wherein air inlets are formed in two opposite side surfaces of the box body, and at least one of the other two opposite side surfaces is provided with an air outlet.
Preferably, in the sample testing box capable of simulating a dispersion state of an interfering material, at least two air inlets are respectively formed in two opposite side surfaces of the box body, and at least one air outlet is respectively formed in the other two opposite side surfaces of the box body.
Preferably, in the sample test box capable of simulating a dispersion state of an interference material, two air inlets are respectively formed in two opposite side surfaces of the box body, and an air outlet is respectively formed in the other two opposite side surfaces of the box body; the straight line formed by connecting the two air inlets on one side surface and the straight line formed by connecting the two air inlets on the other side surface are in opposite intersection, and the included angle between the straight line and the straight line is 30-90 degrees.
Preferably, in the sample testing box capable of simulating the dispersion state of the interfering material, the box body is covered with a cover body, and the shape of the cover body is the same as the shape of the bottom surface of the box body.
Preferably, in the sample testing box capable of simulating the dispersion state of the interference material, the box body and the cover body are detachably connected; the detachable connection is a threaded connection, a snap connection or a hinge connection.
Preferably, in the sample testing box capable of simulating a dispersion state of the interference material, the air inlet and the air outlet are both provided with a filter screen, and the size of the filter screen is smaller than the characteristic size of the interference material.
Preferably, in the sample testing box capable of simulating the dispersion state of the interference material, the air inlet is connected with an air pump through a pipeline; and air valves are arranged on the air inlet and the pipeline corresponding to the air inlet.
Preferably, in the sample testing box capable of simulating a dispersion state of the interference material, the box body and the cover body are made of wave-transparent materials.
The purpose of the invention and the technical problem to be solved can also be realized by adopting the following technical scheme. The dynamic wave-absorbing performance testing system for the interference material comprises a bow-shaped reflectivity testing device and a sample testing box capable of simulating the dispersion state of the interference material, wherein the bow-shaped reflectivity testing device comprises a sample plate support, and the sample device is placed on the sample plate support.
The purpose of the invention and the technical problem to be solved can also be realized by adopting the following technical scheme. The invention provides a test method for the dynamic wave absorption performance of an interference material, which comprises the following steps:
uniformly dispersing the interfering material in the test environment by adjusting the gas flow rate and direction;
and then testing the radar wave reflectivity of the interference material by a bow method.
By the technical scheme, the sample test box capable of simulating the dispersion state of the interference material, the system and the method for testing the dynamic wave-absorbing performance of the interference material, provided by the invention, have the following beneficial effects:
the sample test box can truly reflect the wave absorbing performance of the interference material floating in the air;
the sample testing box is made of wave-transparent materials, does not reflect or attenuate radar waves, and can ensure the accuracy of testing data.
The sample testing box disclosed by the invention is simple in structure, flexible and convenient to apply, and can be combined with different testing devices to form a dynamic wave-absorbing performance testing system for testing the dynamic wave-absorbing performance of the interference material.
The foregoing is a summary of the present invention, and other objects, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for purposes of clarity and understanding.
Drawings
FIG. 1 is a schematic diagram of a sample testing chamber capable of simulating the dispersion of interfering materials according to the present invention;
FIG. 2 is a schematic view of opposite sides (air inlets) of a sample testing chamber of the present invention that can simulate the dispersion of interfering materials;
FIG. 3 is a schematic view of one of the other opposite sides (air outlet) of a sample testing chamber in which the scattering state of interfering materials can be simulated according to the present invention;
FIG. 4 is a schematic structural diagram of a dynamic wave-absorbing performance testing system for an interference material according to the present invention.
Detailed Description
In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined object, the following detailed description will be given to the sample testing box, the system and the method for testing the dynamic wave-absorbing performance of the interference material, and the specific implementation manner, the features and the effects thereof according to the present invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features or characteristics of one or more embodiments may be combined in any suitable manner.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
As shown in fig. 1 to 3, some embodiments of the present invention provide a sample testing box capable of simulating a dispersion state of an interference material, where the sample testing box includes a hollow box body 1, two opposite side surfaces of the box body 1 are respectively provided with a first air inlet 3, a second air inlet 4, a third air inlet 5, and a fourth air inlet 6, and two opposite side surfaces of the box body are respectively provided with a first air outlet 8 and a second air outlet 9. The dimensions of the sample testing chamber may be customized as desired for the particular testing requirements.
In the technical scheme, the air enters from the air inlets in different directions on the two opposite side surfaces of the sample testing box, the air flows through the boundary of the box body, when two or more air flows flow through each other, turbulence is generated, the interference material to be tested is scattered in the space of the box body to move irregularly, and the motion state of the interference material scattered in the air after being distributed can be simulated really. Gas entering the sample testing box is discharged in time through the air outlet, so that the sample testing box is prevented from being damaged due to overhigh air pressure in the box body. The gas may be, for example, air or an inert gas.
In some embodiments of the present invention, the interference material is a radar wave absorption type interference material, which can absorb or attenuate radar waves, the sample morphology can be spherical, needle-shaped or sheet-shaped, and the characteristic dimension of the sample is 20 μm-10 mm.
In some embodiments of the present invention, a straight line formed by connecting the first air inlet 3 and the second air inlet 4 on one side surface and a straight line formed by connecting the third air inlet 5 and the fourth air inlet 6 on the other side surface form an opposite intersection, and an included angle between the two is 30 ° to 90 °. With the arrangement, when external air enters the sample testing box, turbulent flow can be better formed among the first air inlet 3, the second air inlet 4, the third air inlet 5 and the fourth air inlet 6.
In some embodiments of the present invention, the box body 1 is covered with a cover body 2, and the shape of the cover body 2 is the same as the shape of the bottom surface of the box body 1. The purpose of the lid is to form a closed space for the sample testing box, preventing the interfering material sample from escaping the sample testing box under the blow of the air flow.
In some embodiments of the present invention, the box body 1 and the cover body 2 are detachably connected, for example, a threaded connection, a snap connection, or a hinge connection, which is not limited in this respect. The purpose of the detachable connection provided here is to facilitate the placement and removal of interfering material samples.
In some embodiments of the present invention, the first air inlet 3, the second air inlet 4, the third air inlet 5, and the fourth air inlet 6 are respectively installed with a filter screen for preventing interferents from entering the air duct and damaging the device. The first air outlet 8 and the second air outlet 9 are respectively provided with a filter screen to prevent the interference objects from flying out from the air outlets. The screen is sized to be smaller than the characteristic size of the interfering material. The corresponding filter screen can be selected according to the characteristic size of the interference material, for example, a filter screen with 30-300 meshes can be selected.
The material of the filter screen in the above embodiment may be mineral fiber, such as: asbestos, etc.; regenerated fibers, such as: viscose fiber, acetate fiber, etc.; synthetic fibers, such as: chinlon, terylene, acrylon, spandex, vinylon, polypropylene, polyvinyl chloride and the like; inorganic fibers, such as: glass fibers, etc.; it should be noted here that the material of the filter screen may not be metal fiber, because the metal fiber may reflect electromagnetic waves, which may affect the test result, for example, the test result may show that the wave absorbing performance of the material is poor.
In some embodiments of the present invention, the first air inlet 3, the second air inlet 4, the third air inlet 5, and the fourth air inlet 6 are respectively connected to an air pump through a pipeline, so as to ensure that air enters from different directions, form turbulence, uniformly disperse interferents in the box body 1, and simulate a distribution state of the interferents in the air, i.e., enable the interferents to be suspended in the box body 1 in a floating state.
In some embodiments of the present invention, air valves are respectively disposed on the first air inlet 3, the second air inlet 4, the third air inlet 5, the fourth air inlet 6, and the corresponding pipelines thereof, and the air valves control the air flow direction and the air flow rate, so as to simulate different wind directions and wind speeds through different air flow directions and air flow rates.
In some embodiments of the present invention, the bottom surface of the box body 1 may be circular, square, regular hexagon, regular octagon, regular decagon or regular dodecagon, which is not specifically limited herein; but is preferably designed to be square in view of the convenience of processing and the applicability to the bow test apparatus.
In some embodiments of the present invention, the box body 1 and the cover body 2 are made of wave-transparent materials, so as to ensure that the sample box itself does not reflect or attenuate radar waves, and ensure the accuracy of test data. The wave-transmitting material includes, but is not limited to, resin-based composite materials, inorganic non-metal-based composite materials, hybrid fiber composite materials, and the like, and preferably resin-based composite materials, such as unsaturated polyester resins, epoxy resins, phenolic resins, cyanate ester resins, silicone resins, polyimide resins, polytetrafluoroethylene resins, thermoplastic resins, and the like. The resin-based composite material has good mechanical property, good processing property, good high and low temperature expansion resistance, shock resistance and impact resistance, and better bearing capacity.
As shown in fig. 2, some embodiments of the present invention further provide a system for testing dynamic wave-absorbing performance of an interference material, including an arc-shaped reflectivity testing apparatus and the sample testing box 80 of the above embodiments, which can simulate a dispersion state of the interference material, where the sample testing box 80 is disposed on the arc-shaped reflectivity testing apparatus; the bow-shaped reflectivity testing device comprises a bow-shaped frame 10, a transmitting antenna 20, a receiving antenna 30, a sample plate bracket 40, a vector network analyzer 50, a computer 60 and an intelligent temperature controller 70; the sample testing chamber 80 is placed on the screed stand 40.
In other embodiments of the present invention, the transmitting antenna 20 and the receiving antenna 30 are symmetrically fixed on the semicircular slide rail of the bow 10, the sample to be tested is placed at the center of the bow 10, and the testing angle of the reflectivity is adjusted by adjusting the angle position of the antennas on the slide rail of the bow 10. The slide rail is a track which is arranged on the bow-shaped frame and is convenient for the transmitting antenna and the receiving antenna to move.
In other embodiments of the present invention, the computer 60 communicates with the vector network analyzer 50 via a local area network LAN, and the connections between the vector network analyzer 50 and the transmitting antenna 20, and between the vector network analyzer 50 and the receiving antenna 30 are made via radio frequency cables or waveguides. When the reflectivity of the wave-absorbing material is tested, the cambered frame 10 is controlled by the motor to drive the transmitting antenna 20 and the receiving antenna 30 to move, so that the multi-angle reflectivity test is realized; the electromagnetic wave emitted by the emitting antenna 20 is reflected by the sample and received by the receiving antenna 30, and other electromagnetic waves are absorbed by the background wave-absorbing material (the pointed cone material shown in fig. 4); two ports of the vector network analyzer 50 are respectively connected with the transmitting antenna 20 and the receiving antenna 30 for reflectivity test.
In other embodiments of the invention, a background absorbing material is included and is positioned below the template holder 40. The background wave-absorbing material is arranged to remove the influence of the environment on the radar wave reflectivity test result of the material and ensure the accuracy of the test data.
In addition, in order to more truly reflect the wave absorbing performance of the interference material scattered in the air, the invention also provides a method for testing the dynamic wave absorbing performance of the interference material, which comprises the following steps:
uniformly dispersing the interfering material in the test environment by adjusting the gas flow rate and direction;
and then testing the radar wave reflectivity of the interference material by a bow method.
In other embodiments of the present invention, the testing method comprises the steps of:
opening a cover body of the sample testing box, and placing the interference material to be tested in the sample testing box;
connecting the air inlets with an air pump, and selecting the number and the direction of the air inlets according to the test requirements;
uniformly dispersing the interfering material in the sample testing chamber by adjusting the gas flow rate and direction;
then testing the radar wave reflectivity of the interference material by a bow method;
and after the test is finished, taking out the interference material sample, and restoring the test system to the original state. .
In other embodiments of the present invention, the testing method specifically includes the following steps:
a, opening the cover body 2 of the sample testing box 80;
b, placing an interference material sample to be detected in the box body 1;
c, covering the cover body 2;
d, respectively connecting the first air inlet 3, the second air inlet 4, the third air inlet 5 and the fourth air inlet 6 with corresponding pipelines and air pumps thereof, adjusting the flow rate and direction of air, opening an air valve to enable air to enter, and enabling the interference material sample to be uniformly dispersed in the box body 1 under the blowing of air flow; specifically, the flow rate of the gas can be adjusted by the gas valve, and the gas inlet direction can be adjusted by selecting the gas inlet.
e, placing the box body 1 on the sample plate support 40, and testing the radar wave reflectivity of the interference material sample by using an arch method (according to the national military standard GJB 2038A-2011);
and f, taking down the sample device 80 after the test is finished, closing the air valve and taking out the interference material product.
Specifically, the step of testing radar wave reflectivity of an interfering material sample by the bow method is the prior art, and specifically comprises the following steps:
starting up a test system for preheating; inputting measurement parameters according to program prompt; placing the standard plate on the sample plate support, and keeping the temperature of the standard plate at the testing temperature; measuring the reflected power of the standard plate; replacing the standard plate with the sample plate to be tested, and keeping the temperature of the sample plate to be tested at the testing temperature; measuring the reflection power of a sample plate to be measured; processing data by a computer to obtain the reflectivity of a sample plate; storing the test data and printing and outputting the test result.
The temperature is 23 ℃ plus or minus 3 ℃, and the relative humidity is not more than 80%.
The present invention will be further described with reference to the following specific examples, which should not be construed as limiting the scope of the invention, but rather as providing those skilled in the art with certain insubstantial modifications and adaptations of the invention based on the teachings of the invention set forth herein.
Example 1
Opening the cover 2 of the sample testing box 80; placing a to-be-measured flaky interference material sample with the characteristic size of 2mm in a box body 1(180 mm); covering the cover body 2; respectively connecting a first air inlet 3, a second air inlet 4, a third air inlet 5 and a fourth air inlet 6 with corresponding pipelines and air pumps, completely opening the four front air inlets (the size of a filter screen of the air inlets is 50 meshes) through air valves, opening the air valves to enable air to enter, and controlling the air flow speed to be 4m/s, so that the interference material sample is uniformly dispersed in the box body 1 under the blowing of air flow; placing the box body 1 on a sample plate support 40, and testing the radar wave reflectivity of the interference material sample by using an arch method (according to the national military standard GJB2038A-2011), wherein the result is-12 dB; after the test is completed, the sample device 80 is removed, the air valve is closed, and the interfering material product is removed.
Example 2
Opening the cover 2 of the sample testing box 80; placing a spherical interference material sample to be measured with the particle size of 50 μm in a box body 1(180mm 100 mm); covering the cover body 2; respectively connecting a first air inlet 3, a second air inlet 4, a third air inlet 5 and a fourth air inlet 6 with corresponding pipelines and air pumps, completely opening the four front air inlets (the size of a filter screen of the air inlets is 50 meshes) through air valves to open the air valves to enable air to enter, and controlling the air flow speed to be 8m/s to enable the interference material sample to be uniformly dispersed in the box body 1 under the blowing of air flow; placing the box body 1 on a sample plate support 40, and testing the radar wave reflectivity of the interference material sample by using an arch method (according to the national military standard GJB2038A-2011), wherein the result is-15 dB; after the test is completed, the sample device 80 is removed, the air valve is closed, and the interfering material product is removed.
Example 3
Opening the cover 2 of the sample testing box 80; placing a to-be-measured needle-shaped interference material sample with the particle size of 4mm in a box body 1(300mm x 150 mm); covering the cover body 2; respectively connecting a first air inlet 3, a second air inlet 4, a third air inlet 5 and a fourth air inlet 6 with corresponding pipelines and air pumps, completely opening the four front air inlets (the size of a filter screen of the air inlets is 200 meshes) through air valves, opening the air valves to enable air to enter, and controlling the air flow speed to be 10m/s, so that the interference material sample is uniformly dispersed in the box body 1 under the blowing of air flow; placing the box body 1 on a sample plate support 40, and testing the radar wave reflectivity of the interference material sample by using an arch method (according to the national military standard GJB2038A-2011), wherein the result is-14 dB; after the test is completed, the sample device 80 is removed, the air valve is closed, and the interfering material product is removed.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some embodiments, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. The sample testing box capable of simulating the dispersion state of the interference material is characterized by comprising a hollow box body, wherein air inlets are formed in two opposite side faces of the box body, and at least one of the other two opposite side faces is provided with an air outlet.
2. The sample testing box capable of simulating a dispersion state of an interfering material according to claim 1, wherein the box body is provided with at least two air inlets at two opposite sides thereof, and at least one air outlet at the other two opposite sides thereof.
3. The sample testing box capable of simulating the dispersion state of the interference material according to claim 2, wherein two air inlets are respectively formed on two opposite side surfaces of the box body, and an air outlet is respectively formed on the other two opposite side surfaces; the straight line formed by connecting the two air inlets on one side surface is opposite to and crossed with the straight line formed by connecting the two air inlets on the other side surface.
4. The sample testing chamber capable of simulating a scattering state of interfering materials according to claim 1, wherein the chamber body is covered with a cover body, and the cover body has the same shape as the bottom surface of the chamber body.
5. The sample testing kit for simulating the dispersal of interfering materials as claimed in claim 4, wherein said housing and cover are removably attached.
6. The specimen testing chamber of claim 1, wherein the air inlet and the air outlet are each provided with a filter screen, and the size of the filter screen is smaller than the characteristic size of the interference material.
7. The sample testing box capable of simulating the dispersion state of the interference material according to claim 1, wherein the air inlet is connected with an air pump through a pipeline; an air valve is arranged on the pipeline.
8. The specimen testing chamber of claim 1, wherein the chamber and the cover are made of wave-transparent material.
9. A dynamic wave-absorbing performance testing system for an interference material comprises a bow-shaped reflectivity testing device and a sample testing box which can simulate the dispersion state of the interference material and is as claimed in any one of claims 1 to 8, wherein the bow-shaped reflectivity testing device comprises a sample plate support, and the sample device is placed on the sample plate support.
10. A test method for the dynamic wave absorption performance of an interference material comprises the following steps:
uniformly dispersing the interfering material in the test environment by adjusting the gas flow rate and direction;
and then testing the radar wave reflectivity of the interference material by a bow method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677657.8A CN114295643B (en) | 2021-12-31 | 2021-12-31 | System and method for testing dynamic wave absorbing performance of interference material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111677657.8A CN114295643B (en) | 2021-12-31 | 2021-12-31 | System and method for testing dynamic wave absorbing performance of interference material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114295643A true CN114295643A (en) | 2022-04-08 |
| CN114295643B CN114295643B (en) | 2023-06-30 |
Family
ID=80975389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111677657.8A Active CN114295643B (en) | 2021-12-31 | 2021-12-31 | System and method for testing dynamic wave absorbing performance of interference material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114295643B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080044616A1 (en) * | 2004-06-28 | 2008-02-21 | Daio Paper Corporation | Absorbing Material |
| CN201255755Y (en) * | 2008-08-11 | 2009-06-10 | 李昆达 | Environment test equipment |
| CN101825524A (en) * | 2010-05-21 | 2010-09-08 | 西安交通大学 | Particle environment simulating system with particle motion friction electrification measurement function |
| CN102135467A (en) * | 2010-12-27 | 2011-07-27 | 中国科学院光电技术研究所 | Hot-wind turbulence simulation device |
| CN103234941A (en) * | 2013-04-17 | 2013-08-07 | 中国工程物理研究院流体物理研究所 | Dynamic measurement device and method of material laser reflectivity under subsonic tangential airflow |
| CN203672980U (en) * | 2013-12-31 | 2014-06-25 | 上海煜鹏通讯电子有限公司 | Real environment simulated RF test tool |
| US20140342649A1 (en) * | 2011-12-06 | 2014-11-20 | A.R.I.A. Engineering S.R.L. | Method and an apparatus for creating an outdoor still-air environment, or an environment with controlled wind |
| CN206114794U (en) * | 2016-08-31 | 2017-04-19 | 中国航空综合技术研究所 | Temperature humidity electromagnetism integrated environment analog device |
| CN109307582A (en) * | 2018-11-30 | 2019-02-05 | 重庆大学 | A kind of the wind field detection device and detection method of increasing material manufacturing equipment |
| US20210208052A1 (en) * | 2020-01-07 | 2021-07-08 | Perm Inc. | Methods and Apparatus for Determining the Spatial Distribution of Materials using Electromagnetic Radiation |
| CN113189121A (en) * | 2021-05-11 | 2021-07-30 | 中北大学 | Dynamic test system and method for reflectivity of wave-absorbing material of self-adaptive time domain gate |
| CN214440915U (en) * | 2021-01-14 | 2021-10-22 | 美欣达欣智造(湖州)科技有限公司 | Adjustable nodal pattern air separator |
-
2021
- 2021-12-31 CN CN202111677657.8A patent/CN114295643B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080044616A1 (en) * | 2004-06-28 | 2008-02-21 | Daio Paper Corporation | Absorbing Material |
| CN201255755Y (en) * | 2008-08-11 | 2009-06-10 | 李昆达 | Environment test equipment |
| CN101825524A (en) * | 2010-05-21 | 2010-09-08 | 西安交通大学 | Particle environment simulating system with particle motion friction electrification measurement function |
| CN102135467A (en) * | 2010-12-27 | 2011-07-27 | 中国科学院光电技术研究所 | Hot-wind turbulence simulation device |
| US20140342649A1 (en) * | 2011-12-06 | 2014-11-20 | A.R.I.A. Engineering S.R.L. | Method and an apparatus for creating an outdoor still-air environment, or an environment with controlled wind |
| CN103234941A (en) * | 2013-04-17 | 2013-08-07 | 中国工程物理研究院流体物理研究所 | Dynamic measurement device and method of material laser reflectivity under subsonic tangential airflow |
| CN203672980U (en) * | 2013-12-31 | 2014-06-25 | 上海煜鹏通讯电子有限公司 | Real environment simulated RF test tool |
| CN206114794U (en) * | 2016-08-31 | 2017-04-19 | 中国航空综合技术研究所 | Temperature humidity electromagnetism integrated environment analog device |
| CN109307582A (en) * | 2018-11-30 | 2019-02-05 | 重庆大学 | A kind of the wind field detection device and detection method of increasing material manufacturing equipment |
| US20210208052A1 (en) * | 2020-01-07 | 2021-07-08 | Perm Inc. | Methods and Apparatus for Determining the Spatial Distribution of Materials using Electromagnetic Radiation |
| CN214440915U (en) * | 2021-01-14 | 2021-10-22 | 美欣达欣智造(湖州)科技有限公司 | Adjustable nodal pattern air separator |
| CN113189121A (en) * | 2021-05-11 | 2021-07-30 | 中北大学 | Dynamic test system and method for reflectivity of wave-absorbing material of self-adaptive time domain gate |
Non-Patent Citations (2)
| Title |
|---|
| 何山: "雷达吸波材料性能测试", 材料工程, no. 06 * |
| 贾菲 等: "宽波段遮蔽型干扰物及其形态和结构设计", 《材料导报》, vol. 32, pages 59 - 162 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114295643B (en) | 2023-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6525657B1 (en) | Apparatus and method for production testing of the RF performance of wireless communications devices | |
| CN106124911B (en) | A kind of temperature-humidity-electromagnetism integrated environment analog machine | |
| CN111397830B (en) | Wind tunnel examination device of sealed heat-proof structure | |
| JP2008166474A (en) | Environmental testing device | |
| CN106996204B (en) | A kind of anechoic room for fan forced grade aerodynamic noise test | |
| CN114838912A (en) | Particle scattering device, system and particle scattering method | |
| CN114295643B (en) | System and method for testing dynamic wave absorbing performance of interference material | |
| CN103816948A (en) | Constant-temperature and constant-humidity test machine | |
| JP4440002B2 (en) | Anechoic chamber | |
| CN206114794U (en) | Temperature humidity electromagnetism integrated environment analog device | |
| CN109541588B (en) | Closed space raise dust test system of wind channel circulation | |
| Nothofer et al. | The use of GTEM cells for EMC measurements. | |
| CN216900757U (en) | Verification system for OTA (over the air) reliability and environment test of 5G (third generation) communication base station | |
| Bradley et al. | Improved sound field reverberance and diffusivity in a reverberation chamber through implementation of resonant-diffusing wall panels | |
| CN218213418U (en) | Radar testing device | |
| CN105022042A (en) | Terminal grating for RCS test of aeroengine exhausting system and method of terminal grating | |
| Lilly | Suggested Modifications to ASTM Test Method E 477 | |
| CN218213072U (en) | Rotatable wave-transparent incubator and test system | |
| CN115758698B (en) | Anechoic chamber and construction method thereof | |
| CN218630020U (en) | Small-size extreme environment test equipment of wave mode of passing through in darkroom | |
| CN215987053U (en) | Temperature control box body, temperature control system and radar performance test system | |
| CN115248424A (en) | Radar testing device | |
| Heidemann et al. | Using TEM waveguides according to the new IEC 61000-4-20 | |
| CN203830024U (en) | Constant temperature and humidity testing machine | |
| CN214473624U (en) | Multi-probe bow rack test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |