Tool and method for testing high-power microwave response characteristic of electromagnetic material
By designing a high-power microwave response characteristic testing tool for electromagnetic materials including shielding boxes and support frames, the interference problems existing in existing test tools and the problem of not universal testing of different materials are solved, and accurate and efficient testing of a variety of electromagnetic materials is achieved.
Patent Information
- Application Number
- CN202411742293.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-03-14
AI Technical Summary
The existing high-power microwave response characteristic testing tooling for electromagnetic materials has interference problems and is not universal for testing different materials, and there is a lack of clear testing methods.
A high-power microwave response characteristic testing tool for electromagnetic materials including shielding box and support frame is designed. The built-in receiving probe and conical absorbent cotton of the shielding box are used, combined with a test method of universal wheel and rotary snapping to achieve high-power microwave response characteristic testing for a variety of electromagnetic materials.
It effectively suppresses external electromagnetic interference, realizes accurate and efficient testing of different electromagnetic materials, provides clear testing methods and high testing efficiency.
Smart Images
Figure CN119619662A_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of testing the high-power microwave response characteristics of electromagnetic materials, and specifically relates to a tool and a testing method for testing the high-power microwave response characteristics of electromagnetic materials. Background Art
[0002] The informationization and intelligence level of aircraft onboard electronic equipment is constantly improving, and the risk of interference and damage from high-power microwaves is also increasing.
[0003] The electromagnetic protection measures for airborne electronic equipment include material-level, device-level, equipment-level, system-level and whole-machine-level electromagnetic protection. Among them, electromagnetic materials are the basis for supporting high-power microwave protection of airborne electronic equipment.
[0004] Testing the response characteristics of electromagnetic materials in a high-power microwave environment is the basis for its application in the electromagnetic protection design of airborne electronic equipment. Currently, the electromagnetic material high-power microwave response characteristics test tooling has the following defects:
[0005] 1) Metal equipment such as test tools, probes, cables, and receiving antennas will interfere with the electromagnetic field and affect the accuracy of the test results;
[0006] 2) There are many types of electromagnetic materials with inconsistent parameters. The test tooling is not universal for testing different electromagnetic materials, making replacement inconvenient and the test efficiency low.
[0007] In addition, there is currently a lack of guiding standards in the field of testing the high-power microwave response characteristics of electromagnetic materials, and there are no clear testing methods.
[0008] This application is proposed in view of the above-mentioned technical defects. Summary of the invention
[0009] The purpose of this application is to provide a high-power microwave response characteristic testing tool and testing method for electromagnetic materials, so as to achieve accurate and efficient testing of the high-power microwave response characteristics of various electromagnetic materials.
[0010] The technical solution of this application is:
[0011] On the one hand, a high-power microwave response characteristic test tool for electromagnetic materials is provided, including a shielding box and a support frame;
[0012] The shielding box is arranged on the supporting frame, and a receiving probe / antenna is arranged inside the shielding box;
[0013] An opening is provided at the center of the side of the shielding box, and a shielding door is installed; one side of the shielding door is connected to the shielding box through two door hinges, and a rotating buckle is provided on the other side to open or close the opening;
[0014] A connector is provided on the back side of the shielding box to connect the receiving probe / antenna set inside the shielding box with external test equipment;
[0015] A test window is provided at the center of the front of the shielding box, and a rectangular boss surrounding the test window is provided inside the shielding box, and an inward folded edge is provided inside the rectangular boss;
[0016] A wind cover is arranged in the test window, and the wind cover is fixed on the shielding box by four vertical pressing clamps and pressed on the inner folded edge;
[0017] Conical absorbing cotton is laid on the inner wall of the shielding box.
[0018] Optionally, in the above-mentioned electromagnetic material high-power microwave response characteristic test tool, the support frame has four corner pieces that are clamped on the four corners of the bottom of the shielding box.
[0019] Optionally, the above-mentioned electromagnetic material high-power microwave response characteristic testing tool further includes a universal wheel;
[0020] There are four universal wheels, which are installed on the four corners of the support frame close to the ground.
[0021] Optionally, in the above-mentioned electromagnetic material high-power microwave response characteristics testing tool, the shielding box and its shielding door are made of metal material.
[0022] On the other hand, a method for testing the high-power microwave response characteristics of electromagnetic materials is provided, which is implemented based on the above-mentioned high-power microwave response characteristics testing tool for electromagnetic materials, and includes:
[0023] Place the electromagnetic material high-power microwave response characteristic test fixture in the far field area of the high-power microwave radiation field, and adjust so that the center of the test window and the center of the high-power microwave radiation source are at the same level;
[0024] Open the shielding door, set up the receiving probe / antenna in the shielding box through the upper opening of the shielding box, and adjust the center of the receiving probe / antenna to align with the center of the test window, and close the shielding door;
[0025] Remove the wind cover, turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform S0 received by the receiving probe / antenna stand;
[0026] Turn off the high-power microwave radiation source, install different electromagnetic materials in the shape of wind covers in the test window in turn, turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform Si received by the receiving probe / antenna stand, where i represents the i-th electromagnetic material;
[0027] By comparing Si and S0, the high-power microwave response characteristics of different electromagnetic materials were obtained. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of a high-power microwave response characteristic testing tool for electromagnetic materials provided in an embodiment of the present application;
[0029] Figure 2 It is a side view of a high-power microwave response characteristic testing tool for electromagnetic materials provided in an embodiment of the present application;
[0030] Figure 3 It is a front view of a high-power microwave response characteristic testing tool for electromagnetic materials provided in an embodiment of the present application;
[0031] Figure 4 It is a back view of the electromagnetic material high-power microwave response characteristic testing tool provided in an embodiment of the present application;
[0032] Figure 5 is a cross-sectional view of a test window provided in an embodiment of the present application;
[0033] Figure 6 is a cross-sectional view of a shielding box provided in an embodiment of the present application;
[0034] in:
[0035] 1-shielding box; 2-support frame; 3-universal wheel;
[0036] 11-shielding door; 12-door hinge; 13-rotating buckle; 14-test window; 15-wind cover; 16-rectangular boss; 17-inward folding edge; 18-connector; 19-conical absorbing cotton; 20-vertical pressing clamp.
[0037] In order to better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and should not be construed as limitations on the present application. DETAILED DESCRIPTION
[0038] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be described in further detail in detail and in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design.
[0039] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall have the usual meanings understood by those of ordinary skill in the art to which this application belongs. The words used in the description of this application to indicate orientation are only used to indicate relative directions or positional relationships. When the absolute position of the described object changes, its relative positional relationship may also change accordingly. The word "include" used in the description of this application indicates that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but does not exclude other elements or objects.
[0040] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installation", "connection" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Technical personnel in the field can understand its specific meaning in this application according to the specific circumstances.
[0041] A high-power microwave response characteristic test tool for electromagnetic materials, such as Figure 1 As shown, it includes a shielding box 1, a support frame 2, and a universal wheel 3.
[0042] The shielding box 1 is arranged on the supporting frame 2, and the height H from the ground is 700 mm.
[0043] The support frame 2 has four corner pieces, which are clamped on the four corners of the bottom of the shielding box 1 .
[0044] There are four universal wheels 3 installed at four corners of the support frame 2 close to the ground, so as to facilitate the movement of the test tooling.
[0045] The overall width of the test tool is W=700mm, the length is L=920mm, and the height is H1+H=1300mm.
[0046] See also Figure 2 An opening is provided at the center of the side of the shielding box 1, and a shielding door 11 is installed.
[0047] One side of the shielding door 11 is connected to the shielding box 1 through two door hinges 12, and the other side is provided with a rotating buckle 13. The rotating buckle 13 has the functions of a door lock and a handle, so that the shielding door 11 can be locked in a closed position to block the opening, and the shielding door 11 can be opened to release the blockage of the opening.
[0048] A receiving probe / antenna is arranged in the shielding box 1. When the receiving probe / antenna needs to be installed and the position is adjusted, the shielding door 11 can be opened, and the receiving probe / antenna can be installed and the position is adjusted through the opening. After completion, the shielding door 11 can be closed.
[0049] See also Figure 4 A connector 18 is provided on the back side of the shielding box 1. The connector 18 is a through-type connector for connecting the built-in receiving probe / antenna of the shielding box 1 with external test instruments and equipment to achieve communication between the built-in receiving probe / antenna of the shielding box 1 and the external test instruments and equipment.
[0050] The height of the shielding box 1 is H1=700 mm, the width of the shielding door 11 is L2=700 mm, and the height is H2=500 mm.
[0051] See also Figure 3 A test window 14 is provided at the center of the front of the shielding box 1, and a wind cover 15 is arranged in the test window 14. The wind cover 15 is fixed on the shielding box 1 by four opening and locking vertical clamps 20, and can be quickly disassembled and assembled.
[0052] See also Figure 5 The shielding box 1 has a rectangular boss 16 surrounding the test window 14 , and the rectangular boss 16 has an inward folded edge 17 .
[0053] The side length of the rectangular boss 16 is w1 = 212 mm, and the height is h1 = 16 mm.
[0054] The side length of the inner opening of the inward fold 17 is w4=150 mm.
[0055] The side length of the test window 14 is w2 = 182 mm, and the depth is h2 = 16 mm.
[0056] The side length of the wind cover 15 is w3=170 mm, and the thickness is h3=15 mm.
[0057] The wind cover 15 is pressed on the inward folded edge 17 to effectively prevent leakage of electromagnetic waves.
[0058] h2 is also the wall thickness of the shielding box 1 , and w1>w2>w3>w4 meets the installation requirements of the wind cover 15 .
[0059] The connector 18 can simultaneously have the functions of power supply, optical fiber / wireless network communication, N-type / SMA interface, etc., so as to avoid the strong electromagnetic coupling caused by the cable directly penetrating the metal wall of the shielding box.
[0060] See also Figure 6 The inner wall of the shielding box 1 is paved with a conical absorbing cotton 19 to absorb external electromagnetic waves entering the shielding box 1 through the holes.
[0061] The electromagnetic material high-power microwave response characteristic test tool disclosed in the above embodiment is used to test the electromagnetic material high-power microwave response characteristic. The details can be referred to as follows:
[0062] Place the electromagnetic material high-power microwave response characteristic test fixture in the far field area of the high-power microwave radiation field, and adjust so that the center of the test window 14 and the center of the high-power microwave radiation source are at the same level;
[0063] Open the shielding door 11, set up the receiving probe / antenna in the shielding box 1 through the upper opening of the shielding box 1, and adjust the center of the receiving probe / antenna to align with the center of the test window 14, and close the shielding door 11;
[0064] Remove the wind cover 15, turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform S0 received by the receiving probe / antenna stand;
[0065] Turn off the high-power microwave radiation source, install different electromagnetic materials in the shape of wind cover 15 in the test window 14 in turn, turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform Si received by the receiving probe / antenna stand, where i represents the i-th electromagnetic material;
[0066] By comparing Si and S0, the high-power microwave response characteristics of different electromagnetic materials were obtained.
[0067] The high-power microwave response characteristic test tool for electromagnetic materials disclosed in the above-mentioned embodiment has no unnecessary seams or holes, the receiving probe / antenna is placed inside the shielding box 1, and conical absorbing cotton 19 is laid inside the shielding box 1. In addition, the shielding box 1 is electrically connected by using a connector 18, which can effectively suppress strong external electromagnetic waves from entering the shielding box 1 and interfering with the internal test field, thereby ensuring the accuracy of the test results.
[0068] When the high-power microwave response characteristics test tool for electromagnetic materials disclosed in the above-mentioned embodiment is used to test the high-power microwave response characteristics of electromagnetic materials, the electromagnetic material is set in the test window 14 and pressed on the inward folded edge 17, so that there can be good electrical contact between the two, which can reduce electromagnetic leakage and ensure the accuracy of the test results. At the same time, the vertical pressing clamp 20 is used to fix the electromagnetic material under test, which can facilitate the replacement test of a variety of different electromagnetic materials and achieve higher test efficiency.
[0069] Based on the test method of the above-mentioned electromagnetic material high-power microwave response characteristic test tooling, standardized testing of different electromagnetic materials can be achieved, and a clear method for testing the high-power microwave response characteristics of electromagnetic materials can be provided, which has strong universality.
[0070] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other. In the absence of conflict, the embodiments in this application and the technical features in the embodiments can be combined with each other to obtain new embodiments.
[0071] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.
Claims
1. A high-power microwave response characteristic test tool for electromagnetic materials, characterized in that: It comprises a shielding box (1) and a supporting frame (2); The shielding box (1) is arranged on a supporting frame (2), and a receiving probe / antenna is arranged inside the shielding box; An opening is provided at the center of the side of the shielding box (1), and a shielding door (11) is installed; one side of the shielding door (11) is connected to the shielding box (1) via two door hinges (12), and the other side is provided with a rotating buckle (13) capable of opening or closing the opening; A connector (18) is arranged on the back side of the shielding box (1) for connecting a receiving probe / antenna arranged inside the shielding box (1) with an external testing instrument; A test window (14) is provided at the center of the front face of the shielding box (1), a rectangular boss (16) surrounding the test window (14) is provided inside the shielding box (1), and an inward folded edge (17) is provided inside the rectangular boss (16); A wind cover (15) is arranged in the test window (14), and the wind cover (15) is fixed on the shielding box (1) through four vertical pressing clamps (20) and pressed on the inward folded edge (17); The inner wall of the shielding box (1) is paved with conical absorbing cotton (19).
2. The electromagnetic material high-power microwave response characteristic testing tool according to claim 1, characterized in that: The support frame (2) is provided with four corner pieces which are clamped on the four corners of the bottom of the shielding box (1).
3. The electromagnetic material high-power microwave response characteristic testing tool according to claim 1, characterized in that: Also includes a universal wheel (3); There are four universal wheels (3) which are installed on four corners of the support frame (2) near the ground.
4. The electromagnetic material high-power microwave response characteristic testing tool according to claim 1, characterized in that: The shielding box (1) and its shielding door (11) are made of metal material.
5. A method for testing the high-power microwave response characteristics of an electromagnetic material, based on the high-power microwave response characteristics testing tool for an electromagnetic material according to claim 1, comprising: Placing a high-power microwave response characteristic test fixture for electromagnetic materials in a far-field region of a high-power microwave radiation field, and adjusting the test window (14) so that the center of the test window and the center of the high-power microwave radiation source are at the same level; Open the shielding door (11), set up the receiving probe / antenna in the shielding box (1) through the upper opening of the shielding box (1), adjust the center of the receiving probe / antenna to align with the center of the test window (14), and close the shielding door (11); Remove the wind cover (15), turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform S0 received by the receiving probe / antenna stand; Turn off the high-power microwave radiation source, install different electromagnetic materials in the shape of wind covers (15) in the test window (14) in sequence, turn on the high-power microwave radiation source to emit high-power microwaves, and record the waveform Si received by the receiving probe / antenna stand, where i represents the i-th electromagnetic material; By comparing Si and S0, the high-power microwave response characteristics of different electromagnetic materials were obtained.