Transmission conductor support and microwave anechoic chamber measuring device

Abstract

The invention belongs to a support structure, and provides a power transmission conductor support and a microwave anechoic chamber measuring device in order to solve the technical problem that a supporting device for providing dynamic conditions for a power transmission conductor is lacked when ideal echo signals of the power transmission conductor under different radar bands are measured in a microwave anechoic chamber at present. Comprising a support, a lifting assembly, a base and multiple elastic assemblies. The elastic assembly is installed between the support and the base. The lifting assembly is installed on the base, and the output end of the lifting assembly is connected with the support. The output end of the lifting assembly controls output through the micro-vibration controller and is used for driving the support to ascend and descend repeatedly. A wire fixing structure is arranged on the support and used for limiting a wire.

Description

Technical Field

[0001] The present application relates to a support structure, and specifically to a transmission line support and a microwave darkroom measurement device. Background Art

[0002] In order to obtain the ideal echo signal of the transmission line in different radar bands, the microwave darkroom can provide an interference-free and pure electromagnetic wave measurement environment, which makes it an ideal device for providing a measurement environment. However, in the face of specific measurement requirements, such as testing under dynamic conditions, the existing microwave darkroom lacks equipment that can meet such requirements. Therefore, it is necessary to design or add a special vibration support in the existing microwave darkroom to accurately meet the needs of dynamic measurement conditions. Summary of the invention

[0003] The present application aims to solve the technical problem that when measuring the ideal echo signal of the transmission line under different radar bands in the microwave darkroom, there is a lack of a support device that provides dynamic conditions for the transmission line, and provides a transmission line support and a microwave darkroom measuring device.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions: In a first aspect, the present application provides a transmission line support, comprising a bracket, a lifting assembly, a base, and a plurality of elastic assemblies; The elastic component is installed between the bracket and the base; The lifting assembly is installed on the base, and the output end of the lifting assembly is connected to the bracket; the output end of the lifting assembly is controlled by a micro-vibration controller to drive the bracket to rise and fall repeatedly; The bracket is provided with a wire fixing structure for limiting the position of the wire.

[0005] Further, the bracket includes a bottom plate and two upright posts mounted at both ends of the bottom plate, and a spacing area is formed between the two upright posts; The elastic component is installed between the bottom plate and the base; The output end of the lifting assembly is connected to the bottom plate.

[0006] Furthermore, the tops of the two columns are respectively provided with open slots, and the two open slots are used together to limit the position of the wires.

[0007] Furthermore, the opening groove is arranged on one side of the spacing area.

[0008] Furthermore, the two pillars are both in the shape of a cuboid; The opening groove is located in the middle of the edge of the top of the cuboid close to one side of the spacing area.

[0009] Furthermore, the bottom of the open groove is sloped, and the side close to the spacing area is lower.

[0010] Furthermore, the angle between the bottom of the open groove and the horizontal plane is 45°.

[0011] Furthermore, the elastic component is a spring; and the lifting component is a hydraulic lifting platform.

[0012] Furthermore, the bracket is made of foam material.

[0013] In a second aspect, the present application provides a microwave darkroom measurement device, comprising a microwave darkroom body; and also comprising the above-mentioned transmission line support; A darkroom turntable is arranged inside the microwave darkroom body, and the power transmission line support is arranged on the darkroom turntable.

[0014] Compared with the prior art, this application has the following beneficial effects: The present application proposes a power transmission line support, including a support, a base and a lifting assembly, wherein the output end of the lifting assembly is connected to the support, and the output end of the lifting assembly is controlled by a micro-vibration controller, which can drive the support to rise and fall repeatedly, and multiple elastic components are installed between the support and the base. The lifting assembly and the spring are used in combination to provide vertical micro-vibration for the power transmission line limited on the support. The present application provides a support structure that can limit the power transmission line, support the power transmission line, and provide vertical micro-vibration when measuring the ideal echo signal of the power transmission line under different radar bands.

[0015] The present application also proposes a microwave darkroom measurement device, which installs the above-mentioned transmission line support on a darkroom turntable arranged inside the microwave darkroom body and has all the advantages of the above-mentioned transmission line support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A schematic diagram of a transmission line support for the present application; Figure 2 A schematic diagram of the microwave darkroom measurement device of the present application.

[0018] Among them: 1- bracket, 101- bottom plate, 102- column, 2- elastic component, 3- lifting component, 4- base, 5- opening slot, 6- microwave darkroom body, 7- transmission line support, 8- darkroom turntable, 9- transmission line, 10- transmitting and receiving antenna, 11- absorbing material. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In order to deeply understand the electromagnetic characteristics of transmission lines in different radar bands, it is crucial to obtain their accurate echo signals. This process is of great significance to many fields such as power system monitoring, fault location, and optimization of radar technology. At the same time, microwave anechoic chambers can provide a highly specialized measurement environment. By absorbing or suppressing the interference of external electromagnetic waves, it provides a pure space for electromagnetic wave measurement with almost no reflection and interference. This environment greatly improves the accuracy and reliability of the measurement, making microwave anechoic chambers an ideal place to study the echo signals of transmission line radar bands.

[0026] However, in practical applications, transmission lines are often in dynamic environments, such as vibrations caused by wind, deformation caused by mechanical stress, etc. The impact of these dynamic conditions on the echo signal cannot be ignored, because they may change the electromagnetic scattering characteristics of the line, thereby affecting the detection and identification capabilities of the radar. Therefore, in order to comprehensively evaluate the performance of transmission lines in different radar bands, it is necessary to simulate these dynamic conditions in a microwave anechoic chamber. However, existing microwave anechoic chamber designs usually only focus on providing a static, interference-free measurement environment, and lack equipment that directly meets the needs of dynamic measurements. Therefore, it is necessary to design a special vibration support to provide dynamic conditions for transmission line measurements in a microwave anechoic chamber. Not only should it be able to accurately simulate the various dynamic conditions that transmission lines may encounter in actual operation, such as vibrations of different frequencies and amplitudes, but it should also ensure that no additional electromagnetic interference is introduced during the vibration process, thereby maintaining the purity of the measurement environment.

[0027] Based on the above situation, the present application proposes a transmission line support and a microwave darkroom measurement device, which will be described in detail below in conjunction with embodiments and drawings.

[0028] As an embodiment of a power transmission line support of the present application, it may include a bracket 1, a lifting component 3, a base 4 and a plurality of elastic components 2.

[0029] The elastic component 2 is installed between the bracket 1 and the base 4, and can provide the necessary elasticity and damping for the bracket 1 and the base 4 to simulate the dynamic conditions that the power transmission line may encounter in actual operation. In practical applications, the design of the elastic component 2 can be selected by comprehensively considering stiffness, damping characteristics and durability to ensure that the force can be stably transmitted and part of the vibration energy can be absorbed during the vibration process. For example, components made of elastic materials such as springs, air springs, and rubber can be used, and can be selected and adjusted according to specific measurement requirements and vibration parameters to simulate a more realistic dynamic environment.

[0030] The lifting assembly 3 is mounted on the base 4, and the output end of the lifting assembly 3 is connected to the bracket 1. The output end of the lifting assembly 3 is controlled by a micro-vibration controller to drive the bracket 1 to rise and fall repeatedly. In practical applications, the lifting assembly 3 can drive the bracket 1 to rise and fall repeatedly according to preset vibration parameters (such as frequency, amplitude, waveform, etc.). In order to achieve this goal, the lifting assembly 3 needs to be combined with a precise transmission mechanism and control system to achieve precise displacement control. The lifting assembly 3 also needs to be connected to the micro-vibration controller to receive control signals and adjust its output accordingly, thereby achieving precise control of the vibration state of the bracket 1.

[0031] A wire fixing structure is provided on the bracket 1 for limiting the position of the wire. The bracket 1 directly bears the power transmission wire to be tested. The bracket 1 itself needs to ensure sufficient strength and stability to withstand various forces and moments of the power transmission wire during vibration, while maintaining the stability of its shape and position. In addition, since the support of the present application needs to be used in a microwave darkroom, the material selection of the support also needs to be able to meet the use requirements of the microwave darkroom. A wire fixing structure is also required on the bracket 1 to firmly fix the power transmission wire to ensure that the power transmission wire does not fall off or shift during vibration.

[0032] like Figure 1As shown, it is a schematic diagram of the power transmission line support of the present application, which may include a bracket 1, a lifting component 3, a base 4 and a plurality of elastic components 2. Among them, the bracket 1 includes a base plate 101 and two columns 102 installed at both ends of the base plate 101, a spacing area is formed between the two columns 102, the elastic component 2 is installed between the base plate 101 and the base 4, and the output end of the lifting component 3 is connected to the base plate 101. In this embodiment, the column 102 is in the shape of a rectangular parallelepiped, and an open groove 5 is provided on the top of the column 102. The two open grooves 5 are used together to limit the position of the wire, and the open groove 5 is located in the middle of the edge of the top of the rectangular parallelepiped near the side of the spacing area. The bottom of the open groove 5 is sloped, and the side close to the spacing area is lower, and the angle between the bottom of the open groove 5 and the horizontal plane is 45°. Under this structure, the base plate 101 can be used as a bearing component, and a spacing area is formed between the two columns 102 for placing the wire. The two opening slots 5 are located in the middle of the edge of the top of the column 102 near the spacing area, so that the wires can be easily inserted and fixed in the opening slots 5. In addition, the bottom of the opening slots 5 is sloped, which helps to smoothly insert and fix the wires, and can also prevent the wires from accidentally sliding out due to vibration. The 45° setting can balance the convenience of wire insertion and the stability of fixation.

[0033] It should be noted that in other embodiments of the present application, the shape of the column 102 and the specific structure of the bracket 1 can also be adjusted according to actual conditions. Accordingly, the specific setting position of the opening slot 5 and the shape of the opening slot 5 can be adaptively optimized to meet the requirements for fixing the wire.

[0034] As an example, the specific dimensions of the bracket 1 in the shape of a Chinese character "concave" can be set as follows: length 120cm, height 40cm, thickness 30cm, foam material, a 4cm opening as an opening slot 5 at the inner center of the top between the two columns 102 (i.e., the spacing area), the slope of the opening slot 5 is at an angle of 45° to the horizontal plane, and the design of the opening slot 5 is mainly to fix the two ends of the wire to prevent the wire from falling outside the support during the vibration process. In this example, the elastic component 2 uses a spring device, the spring is embedded between the bottom plate 101 and the base 4, the spring height is 10cm, the spring diameter is 4cm, and the spring device can make the bracket 1 vibrate vertically as a whole under the action of the lifting component 3. The lifting component 3 can use a small hydraulic lifting platform, the height of the hydraulic lifting platform is 10cm, and the maximum telescopic height of the hydraulic lifting platform is 2cm. Driven by direct current, the hydraulic lifting platform can push the bracket 1 back and forth, thereby forming vibration in the vertical direction. The base 4 is the entire support bottom structure, and the material can be wood. The base 4 is rectangular, with a length of 120 cm, a height of 30 cm, and a width of 30 cm.

[0035] It should be noted that the bracket 1 is made of foam material, which has the ability to absorb electromagnetic waves. When used in a microwave darkroom, this property can help reduce unnecessary electromagnetic wave reflections, thereby improving the accuracy of the test. Foam materials are usually very light, which also helps to reduce the overall weight of the bracket 1, making it easier to install and move. At the same time, foam materials also have the advantages of easy processing and low cost.

[0036] At present, there is no device that can directly realize the vibration of the transmission line in the microwave darkroom. This application fills the relevant gaps in the prior art. Among them, the bracket 1 is made of foam, which is a low scatterer, and can effectively reduce the echo signal caused by the support, and greatly reduce the noise effect on the echo signal. This application can also be extended to the micro-vibration target measurement of other targets in the microwave darkroom. In addition, the elastic component 2 and the lifting component 3 are installed at the bottom of the bracket 1. The lifting component 3 can drive the bracket 1 to perform telescopic movement, cooperate with the elastic component 2, so as to realize up and down vibration, and can realize the micro-vibration of a single wire in the vertical direction.

[0037] like Figure 2 As shown, it is a schematic diagram of the microwave darkroom measuring device of the present application. It can include a microwave darkroom body 6 and the aforementioned power transmission line support 7. A darkroom turntable 8 is arranged inside the microwave darkroom body 6, and the power transmission line support 7 is arranged on the darkroom turntable 8. Both ends of the power transmission line 9 are fixed in two open grooves, located in the spacing area.

[0038] It should be noted that the microwave darkroom is a special room formed by using absorbing materials 11 and metal shielding bodies, which is intended to provide a closed space that can shield external electromagnetic interference and absorb internal electromagnetic wave reflections. The inner surface of the microwave darkroom body 6 is covered with pyramidal absorbing materials 11 that can absorb waves. The absorbing materials 11 can effectively prevent the test signal from rebounding and suppress internal electromagnetic multipath reflections. The working principle of the microwave darkroom is to guide the electromagnetic waves by using the propagation characteristics of electromagnetic waves in materials with different magnetic permeabilities, and then absorb a large amount of its radiation energy through resonance, and finally convert the energy of the electromagnetic waves into heat energy through coupling to release, thereby simulating a relatively "free space" test environment. In the microwave darkroom, the transceiver antenna 10 is mainly used to transmit and receive electromagnetic wave signals. The transmitting antenna is responsible for radiating the test signal into the darkroom space, while the receiving antenna is used to receive the reflected and scattered signals from the device to be tested or the environment. According to different test requirements, the transceiver antenna 10 can be an antenna of various types and polarization modes. In the microwave darkroom, the position and layout of the transceiver antenna 10 can be carefully designed according to the test requirements and the specific conditions of the darkroom. Usually, the transmitting antenna is placed in a fixed position in the darkroom, while the receiving antenna may need to be tested in multiple angles or in all directions through a turntable or other equipment. There are many types of absorbing materials 11, and the common ones are polyurethane absorbing sponge, ferrite absorbing material 11, conical carbon sponge absorbing material 11, etc. Different types of absorbing materials 11 have different absorbing properties and applicable ranges. Therefore, they can be selected according to the test requirements and the specific conditions of the darkroom.

[0039] In practical applications, the bracket 1 in the present application needs to use a material with low scattering and not easy to emit deformation. For example, a high-density foam material can be used, which is not easy to deform and can also play a good signal "shielding" role. If the elastic component 2 uses a spring, the diameter of the spring steel cannot be too thin. For example, a 3mm rigid spring can be used. When unloaded, the spring will not produce a slight shake. The specific number of springs can be adjusted according to actual conditions. For example, 4 springs can be set. Normally, if it is less than 4, the supporting effect of the spring will not be stable enough, especially during the vibration process, tilt vibration will occur. The micro-vibration controller connected to the lifting component 3 can realize the fully automatic repeated lifting and lowering of the lifting component 3. As an example, the micro-vibration controller can use a 24V DC motor forward and reverse controller, and the lifting height can be achieved by adjusting the forward and reverse time.

[0040] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission line support, characterized in that: It comprises a bracket (1), a lifting component (3), a base (4) and a plurality of elastic components (2); The elastic component (2) is installed between the bracket (1) and the base (4); The lifting component (3) is mounted on a base (4), and an output end of the lifting component (3) is connected to a support (1); the output end of the lifting component (3) is controlled by a micro-vibration controller to drive the support (1) to rise and fall repeatedly; The bracket (1) is provided with a wire fixing structure for limiting the position of the wire.

2. The power transmission line support according to claim 1, characterized in that: The support (1) comprises a base plate (101) and two upright posts (102) mounted at two ends of the base plate (101), and a spacing area is formed between the two upright posts (102); The elastic component (2) is installed between the bottom plate (101) and the base (4); The output end of the lifting component (3) is connected to the bottom plate (101).

3. The power transmission line support according to claim 1, characterized in that: The tops of the two upright posts (102) are respectively provided with open slots (5), and the two open slots (5) are used together to limit the position of the wire.

4. The power transmission line support according to claim 3, characterized in that: The opening groove (5) is arranged at one side of the spacing area.

5. The power transmission line support according to claim 4, characterized in that: The two upright posts (102) are both in the shape of a cuboid; The opening groove (5) is located in the middle of the edge of the top of the rectangular parallelepiped close to one side of the spacing area.

6. The power transmission line support according to claim 5, characterized in that: The bottom of the opening groove (5) is sloped, and the side close to the spacing area is lower.

7. The power transmission line support according to claim 6, characterized in that: The angle between the bottom of the opening groove (5) and the horizontal plane is 45°.

8. The power transmission line support according to claim 7, characterized in that: The elastic component (2) is a spring; the lifting component (3) is a hydraulic lifting platform.

9. The power transmission line support according to claim 1, characterized in that: The support (1) is made of foam material.

10. A microwave darkroom measuring device, comprising a microwave darkroom body (6); characterized in that: Also includes the power transmission line support according to any one of claims 1 to 9; A darkroom turntable (8) is arranged inside the microwave darkroom body (6), and the power transmission line support is arranged on the darkroom turntable (8).

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