Automatic test equipment for waveguide antenna

Abstract

The utility model discloses a waveguide antenna automation test device comprising a cabinet body, a refrigeration assembly arranged on the cabinet body, and a test device arranged in the cabinet body. A cabinet door is arranged on the cabinet body, a transparent observation window is arranged on the cabinet door, a PLC is arranged below the transparent observation window, and a display screen is arranged on the PLC; the refrigeration assembly comprises refrigeration pipes arranged on the two sides in the cabinet body, refrigeration liquid arranged in the refrigeration pipes, and a liquid inlet pipe and a liquid outlet pipe which are arranged at the two ends of the refrigeration pipes. The testing device comprises a testing assembly, a horizontal moving assembly arranged below the testing assembly and a vertical moving assembly arranged above the testing assembly. Through the combination of the refrigeration assembly and the PLC, the refrigeration assembly circulates in the refrigeration pipe through the refrigeration liquid, a stable low-temperature environment is provided for the interior of the cabinet body, the stability of the temperature in the test process is ensured, and the accuracy of the test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waveguide antennas, in particular to automatic testing equipment for waveguide antennas. Background Art

[0002] A waveguide antenna is an antenna that guides radio frequency energy from an air medium into a waveguide. Its working principle is based on the characteristics of electromagnetic waves propagating in a waveguide. A waveguide antenna consists of an internal conductor and an external metal shell. When a microwave signal is transmitted to the waveguide antenna through the conductor, it will reflect back and forth between the internal conductors to form standing waves. These standing waves will radiate out at the exit of the waveguide to form a directional radiation pattern. Waveguide antennas are commonly used in microwave communication systems, radar systems, and other high-frequency applications.

[0003] Prior art, CN202221464423.5 A waveguide antenna tester, comprising: a frame, a test device arranged inside the frame; the test device comprises: a bottom plate, and a product Y-axis moving assembly and a waveguide to coaxial assembly arranged on the bottom plate; the product Y-axis moving assembly comprises: a Y-axis drive unit, and a product carrier seat arranged on the surface of the Y-axis drive unit; a carrier guide frame for installing the product is arranged on the product carrier seat, and an absorbing material is arranged below the carrier guide frame; the waveguide to coaxial assembly comprises: a support, a Z-axis drive unit connected to the support, a fixed seat connected to the Z-axis drive unit, and a waveguide to coaxial module connected to the fixed seat; this waveguide antenna tester improves the positioning accuracy and accuracy of the waveguide antenna test through the structure of the bottom plate, the Y-axis moving assembly and the waveguide to coaxial assembly. However, the waveguide antenna tester of the prior art has the following problems: 1. The prior art lacks temperature control for waveguide antenna detection. During the test, the waveguide antenna will generate heat due to the passage of current or other factors. When too much heat accumulates, the antenna performance will be unstable or even damaged; 2. When the waveguide antenna tester is working, it is necessary to accurately measure the performance parameters of the waveguide antenna, and the interference of external electromagnetic waves may cause these parameters to deviate, thereby affecting the reliability of the test results.

[0004] Therefore, it is necessary to improve the waveguide antenna automatic testing equipment in the prior art to solve the above problems. Summary of the invention

[0005] The utility model overcomes the shortcomings of the prior art and provides a waveguide antenna automatic test device, aiming to solve the temperature control problem of the waveguide antenna automatic test device in the prior art and the problem of external electromagnetic wave interference.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a waveguide antenna automatic test device, comprising: a cabinet, a refrigeration component arranged on the cabinet, and a test device arranged in the cabinet;

[0007] The cabinet body is provided with a cabinet door, the cabinet door is provided with a transparent observation window, a PLC controller is provided below the transparent observation window, and the PLC controller is provided with a display screen;

[0008] The refrigeration assembly comprises: refrigeration pipes arranged on both sides of the cabinet, refrigerant arranged in the refrigeration pipes, and liquid inlet pipes and liquid outlet pipes arranged at both ends of the refrigeration pipes;

[0009] The testing device includes: a testing component, a horizontal moving component arranged under the testing component, and a vertical moving component arranged above the testing component; the testing component includes: a waveguide antenna supporting platform, and a waveguide antenna tester arranged above the waveguide antenna supporting platform; the waveguide antenna supporting platform is located on the horizontal moving component, and the waveguide antenna tester is located on the vertical moving component.

[0010] In a preferred embodiment of the utility model, the cabinet is connected with electric wires, and a filter is arranged on the electric wires.

[0011] In a preferred embodiment of the utility model, the refrigeration tubes are arranged in a serpentine shape.

[0012] In a preferred embodiment of the utility model, the waveguide antenna support platform includes: a frame, a plurality of absorbing materials arranged at the bottom of the frame, and positioning grooves arranged on both sides of the top of the frame; an antenna support plate is also arranged on the frame, and the antenna support plate is located between the positioning grooves.

[0013] In a preferred embodiment of the utility model, the horizontal moving assembly includes: a horizontal moving frame, a horizontal guide groove arranged in the horizontal moving frame, and a moving base slidably connected to the horizontal guide groove; the moving base is connected to a first electric push rod, and the moving base is connected to the waveguide antenna supporting platform.

[0014] In a preferred embodiment of the utility model, the vertical moving assembly includes: a mounting plate, a support plate arranged on the mounting plate, and a vertical guide rail arranged on the mounting plate; a second electric push rod is arranged on the support plate, a moving plate is slidably connected to the vertical guide rail, the second electric push rod is clamped with the moving plate, and the waveguide antenna tester is located on the moving plate.

[0015] In a preferred embodiment of the utility model, a stroke adjusting nut is arranged on the top of the second electric push rod.

[0016] In a preferred embodiment of the utility model, the transparent observation window is made of electromagnetic shielding glass, and the surface of the transparent observation window is coated with a transparent conductive film.

[0017] In a preferred embodiment of the utility model, the waveguide antenna bearing platform and the vertical moving component are both provided with displacement sensors; the waveguide antenna bearing platform is also provided with a temperature sensor.

[0018] In a preferred embodiment of the present invention, the PLC controller is electrically connected to the temperature sensor and the displacement sensor.

[0019] The utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0020] (1) The utility model utilizes the combination of a refrigeration component and a PLC controller. The refrigeration component circulates the refrigerant in the refrigeration pipe to provide a stable low-temperature environment inside the cabinet, while the PLC controller accurately controls the operation of the refrigeration component according to the test requirements, ensuring the temperature stability during the test and improving the accuracy of the test results. Compared with the prior art, it avoids the effect of overheating of the equipment during the test on the unstable performance of the waveguide antenna, prolongs the service life of the waveguide antenna, and reduces the test cost.

[0021] (2) The utility model utilizes the design of a metal cabinet, a filter and electromagnetic shielding glass. The metal cabinet can effectively reflect and absorb electromagnetic waves to prevent them from penetrating into the test equipment, while the electromagnetic shielding glass further ensures the stability of the electromagnetic environment during the test and improves the accuracy and reliability of the test. Compared with the prior art, the influence of external electromagnetic interference on the test results is avoided.

[0022] (3) The utility model utilizes the electrical connection between the displacement sensor and the temperature sensor and the PLC controller. The displacement sensor and the temperature sensor respectively detect the position and temperature data of the waveguide antenna support platform and the waveguide antenna tester in real time, and transmit these data to the PLC controller. The PLC controller accurately controls the movement of the mobile component and the operation of the refrigeration component according to the data, thereby ensuring the accuracy and stability of the test and improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0024] Figure 1 It is a three-dimensional structural diagram of a preferred embodiment of the utility model;

[0025] Figure 2 It is an internal structure diagram of a preferred embodiment of the utility model;

[0026] Figure 3 It is a structural diagram of a testing device of a preferred embodiment of the utility model;

[0027] In the figure: 1. cabinet; 2. cabinet door; 3. transparent observation window; 4. PLC controller; 5. display screen; 6. refrigeration pipe; 7. liquid inlet pipe; 8. liquid outlet pipe; 9. waveguide antenna support platform; 10. waveguide antenna tester; 11. wire; 12. filter; 13. frame; 14. absorbing material; 15. positioning groove; 16. antenna support plate; 17. horizontal moving frame; 18. horizontal guide groove; 19. mounting plate; 20. support plate; 21. vertical guide rail; 22. second electric push rod; 23. moving plate; 24. stroke adjustment nut; 25. displacement sensor; 26. temperature sensor. DETAILED DESCRIPTION

[0028] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0029] like Figure 1 and Figure 2 As shown, a waveguide antenna automatic test equipment includes: a cabinet 1, a refrigeration component arranged on the cabinet 1, and a test device arranged in the cabinet 1; the cabinet 1, as the main structure of the equipment, plays a role in supporting and protecting internal components. The cabinet 1 is made of metal material, which can reflect and absorb electromagnetic waves and prevent them from penetrating into the test equipment. The refrigeration component provides a stable low-temperature environment for the test device. The test device is the core part of the equipment and is responsible for testing the waveguide antenna.

[0030] The cabinet 1 is provided with a cabinet door 2, and the cabinet door 2 is provided with a transparent observation window 3. The transparent observation window 3 allows the operator to observe the situation inside the cabinet 1 without opening the cabinet door 2, which is convenient for real-time monitoring of the test process. The material of the transparent observation window 3 is electromagnetic shielding glass, and the surface of the transparent observation window 3 is coated with a transparent conductive film, which can ensure the stability of the electromagnetic environment during the test process and avoid the influence of external electromagnetic interference on the test results. A PLC controller 4 is provided below the transparent observation window 3, which is responsible for controlling the operation of the test device and the refrigeration component. The PLC controller 4 is provided with a display screen 5, and the display screen 5 displays the test data, status information and operation instructions in real time. The cabinet 1 is connected with a wire 11, and a filter 12 is provided on the wire 11. The filter 12 can effectively filter out clutter and interference signals in the power supply to ensure that the detection equipment operates in a stable power environment.

[0031] The refrigeration assembly includes: refrigeration pipes 6 arranged on both sides of the cabinet 1, refrigerant arranged in the refrigeration pipes 6, and a liquid inlet pipe 7 and a liquid outlet pipe 8 arranged at both ends of the refrigeration pipes 6; the refrigeration pipes 6 are arranged in a serpentine shape, which is conducive to evenly distributing the refrigeration effect, increasing the contact area with the air in the cabinet 1, improving the refrigeration efficiency, and avoiding the overheating of the equipment during the test, which may cause unstable performance or even damage to the waveguide antenna.

[0032] like Figure 3 As shown, the test device includes: a test component, a horizontal moving component arranged under the test component, and a vertical moving component arranged above the test component; the test component includes: a waveguide antenna bearing platform 9, and a waveguide antenna tester 10 arranged above the waveguide antenna bearing platform; the waveguide antenna bearing platform 9 is located on the horizontal moving component, and the waveguide antenna tester 10 is located on the vertical moving component; the horizontal moving component enables the test component to move in the horizontal direction, so that the waveguide antenna can automatically move to the corresponding position for detection, and the setting of the horizontal moving component enables the waveguide antenna tester 10 to move in the horizontal direction to adapt to waveguide antennas of different heights or installation methods.

[0033] The waveguide antenna support platform 9 includes: a frame 13, a plurality of absorbing materials 14 arranged at the bottom of the frame 13, and positioning grooves 15 arranged at both sides of the top of the frame 13; the frame 13, as the basic structure of the waveguide antenna support platform 9, provides stable support, and the main function of the absorbing material 14 is to absorb electromagnetic waves and reduce the reflection and interference of electromagnetic waves. In the waveguide antenna test, the absorbing material 14 can effectively reduce the electromagnetic radiation generated during the test and protect the safety of the operator; the positioning groove 15 can ensure that the waveguide antenna maintains the correct position during the test to avoid test errors caused by position offset. The frame 13 is also provided with an antenna support plate 16, which is located between the positioning grooves 15 to support the waveguide antenna.

[0034] In the horizontal moving assembly, the horizontal moving frame 17 serves as the basic structure, providing stable support for the entire assembly. The horizontal guide groove 18 serves as the moving track of the moving base, ensuring that the moving base can slide smoothly and accurately in the horizontal direction. At the same time, the connection between the first electric push rod and the moving base provides driving force for the moving base, enabling it to move accurately to the specified position.

[0035] In the vertical moving assembly, the mounting plate 19 serves as a supporting structure, carrying components such as the supporting plate 20 and the vertical guide rail 21. The second electric push rod 22 on the supporting plate 20 provides a driving force in the vertical direction for the moving plate 23. The vertical guide rail 21 ensures that the moving plate 23 can move stably in the vertical direction. The waveguide antenna tester 10 is located on the moving plate 23, and adjusts its position in the vertical direction as the moving plate 23 moves to meet the testing requirements of waveguide antennas at different heights. A stroke adjustment nut 24 is provided on the top of the second electric push rod 22, which further improves the accuracy of the vertical moving assembly, thereby ensuring that the waveguide antenna tester 10 can accurately reach the predetermined position. The waveguide antenna support platform 9 and the vertical moving component are both provided with displacement sensors 25, which can detect position changes in real time. The waveguide antenna support platform 9 is also provided with a temperature sensor 26, which is used to monitor the temperature of the support platform and the waveguide antenna thereon in real time; the PLC controller 4 is electrically connected to the corresponding temperature sensor 26 and displacement sensor 25. The PLC controller 4 can accurately control the movement of the moving component based on these displacement data and temperature data, ensuring that the waveguide antenna support platform 9 and the waveguide antenna tester 10 can accurately reach the specified position, and control the refrigeration component to cool the cabinet 1 to avoid detection impact.

[0036] When the utility model is used, the refrigeration component is started to create a low temperature environment inside the cabinet 1 to ensure the temperature stability during the test process; then the movement of the horizontal moving component and the vertical moving component is controlled by the PLC controller 4. The horizontal moving component drives the waveguide antenna bearing platform 9 to move to a specified position in the horizontal direction, and the vertical moving component drives the waveguide antenna tester 10 to adjust to a suitable height in the vertical direction. After the test is completed, the test data and status information can be viewed through the display screen 5, and the performance of the waveguide antenna can be analyzed and adjusted according to the data information.

[0037] The above is based on the ideal embodiment of the utility model. Through the above description, relevant personnel can make various changes and modifications without deviating from the technical concept of the utility model. The technical scope of this utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A waveguide antenna automatic test device, comprising: A cabinet (1), a refrigeration assembly arranged on the cabinet (1), and a testing device arranged in the cabinet (1), characterized in that: The cabinet body (1) is provided with a cabinet door (2), the cabinet door (2) is provided with a transparent observation window (3), a PLC controller (4) is provided below the transparent observation window (3), and a display screen (5) is provided on the PLC controller (4); The refrigeration assembly comprises: refrigeration pipes (6) arranged on both sides of the cabinet (1), refrigeration liquid arranged in the refrigeration pipes (6), and a liquid inlet pipe (7) and a liquid outlet pipe (8) arranged at both ends of the refrigeration pipe (6); The testing device comprises: a testing component, a horizontal moving component arranged under the testing component, and a vertical moving component arranged above the testing component; the testing component comprises: a waveguide antenna bearing platform (9), and a waveguide antenna tester (10) arranged above the waveguide antenna bearing platform; the waveguide antenna bearing platform (9) is located on the horizontal moving component, and the waveguide antenna tester (10) is located on the vertical moving component.

2. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The cabinet (1) is connected to an electric wire (11), and a filter (12) is arranged on the electric wire (11).

3. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The refrigeration pipes (6) are arranged in a serpentine shape.

4. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The waveguide antenna support platform (9) comprises: a frame (13), a plurality of absorbing materials (14) arranged at the bottom of the frame (13), and positioning grooves (15) arranged at both sides of the top of the frame (13); an antenna support plate (16) is also arranged on the frame (13), and the antenna support plate is located between the positioning grooves (15).

5. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The horizontal moving assembly comprises: a horizontal moving frame (17), a horizontal guide groove (18) arranged in the horizontal moving frame (17), and a moving base slidably connected to the horizontal guide groove (18); the moving base is connected to a first electric push rod, and the moving base is connected to the waveguide antenna bearing platform (9).

6. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The vertical moving assembly comprises: a mounting plate (19), a support plate (20) arranged on the mounting plate (19), and a vertical guide rail (21) arranged on the mounting plate (19); a second electric push rod (22) is arranged on the support plate (20), a moving plate (23) is slidably connected to the vertical guide rail (21), the second electric push rod (22) is snap-connected to the moving plate (23), and the waveguide antenna tester (10) is located on the moving plate (23).

7. The waveguide antenna automatic test equipment according to claim 6, characterized in that: A stroke adjustment nut (24) is provided on the top of the second electric push rod (22).

8. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The material of the transparent observation window (3) is electromagnetic shielding glass, and the surface of the transparent observation window (3) is plated with a transparent conductive film.

9. The waveguide antenna automatic test equipment according to claim 1, characterized in that: The waveguide antenna bearing platform (9) and the vertical moving component are both provided with a displacement sensor (25); the waveguide antenna bearing platform (9) is also provided with a temperature sensor (26).

10. The waveguide antenna automatic test equipment according to claim 9, characterized in that: The PLC controller (4) is electrically connected to the corresponding temperature sensor (26) and displacement sensor (25).

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