Device and method for measuring magnetic field intensity of vertical plane
By using a vertical plane magnetic field strength measuring device and the rectangular coordinate method, the problems of complex mechanical motion and cumbersome data processing in existing magnetic field measurements have been solved, achieving efficient and accurate magnetic field strength measurement, which is applicable to the general measurement of small cyclotrons.
Patent Information
- Application Number
- CN202610063080.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-19
- Publication Date
- 2026-02-17
AI Technical Summary
In existing magnetic field measurement techniques, the polar coordinate method requires complex mechanical motion control and data acquisition and processing, resulting in a complex and inefficient measurement process.
A vertical planar magnetic field strength measuring device is adopted, and the magnetic field is scanned using the rectangular coordinate method. Combined with stabilization and support components, the Hall probe can be positioned with high precision and data acquisition can be achieved, simplifying the data processing process.
It improves measurement efficiency, reduces costs, enhances the accuracy and repeatability of measurement results, simplifies operation procedures, and extends the service life of the device.
Smart Images

Figure CN121541113A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnetic field strength measurement technology, specifically to a vertical planar magnetic field strength measurement device and method. Background Technology
[0002] A small cyclotron is a device that uses the combined action of magnetic and electric fields to make charged particles cyclone and accelerate them multiple times during the motion through a high-frequency electric field. In a cyclotron, accurate measurement of the magnetic field is crucial to ensure stable acceleration and precise control of the particle beam. The uniformity and stability of the magnetic field directly affect the performance of the accelerator and the quality of the output particle beam. To ensure the normal use of the equipment, the strength of the magnetic field must be measured.
[0003] Among existing magnetic field measurement technologies, the polar coordinate method is a commonly used method for measuring the magnetic field of cyclotrons. In this method, the Hall probe is installed in the polar coordinate system, and the magnetic field distribution is measured by scanning radially and angularly. However, this method requires the design of specific and complex mechanical motion control during the measurement process, and the data acquisition and processing are relatively complicated. To address this, we propose a vertical plane magnetic field strength measurement device and method. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a vertical planar magnetic field strength measurement device and method. It solves the problem that in existing magnetic field measurement technologies, the polar coordinate method is a commonly used method in cyclotron magnetic field measurement. In this method, the Hall probe is installed in the polar coordinate system, and the magnetic field distribution is measured by radial and angular scanning. However, this method requires the design of specific and complex mechanical motion control during the measurement process, and the data acquisition and processing are also relatively complex.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a vertical planar magnetic field strength measuring device, comprising a control cabinet, a display screen mounted on the upper surface of the control cabinet, a cabinet door mounted on the surface of the control cabinet, casters mounted on the lower surface of the control cabinet, a measuring component disposed on one side of the control cabinet, the measuring component comprising a frame, the frame being located on one side of the control cabinet, a horizontal guide rail slidably connected to the upper surface of the frame, a vertical guide rail slidably connected to the horizontal guide rail, a carrier frame slidably connected to the vertical guide rail, and a reinforcing frame mounted on one side of the vertical guide rail. A fine-tuning stage is mounted on the upper surface of the frame, and a carrier plate is mounted on the upper surface of the fine-tuning stage. A clamping plate is mounted on the surface of the carrier plate, and a probe rod for mounting the Hall probe and the three-dimensional motion platform is horizontally inserted into the clamping plate. A stabilizing component for locking the probe rod is provided on the carrier plate. This solution is primarily adapted for measuring the magnetic field of a small cyclotron accelerator with the main magnet perpendicular to the ground, while also being compatible with devices where the main magnet is parallel to the ground. It overcomes the limitation of existing measuring devices that are only suitable for horizontal main magnets, greatly improving the versatility and applicable scenarios of the equipment. It eliminates the need to configure separate measuring equipment for main magnets with different installation methods, thus reducing measurement costs.
[0006] Preferably, an X-axis motor is installed on one side of the frame. The output end of the X-axis motor is threaded to the inner wall of the horizontal guide frame via a screw for adjusting the position of the horizontal guide frame. A protective cover is installed at one end of the frame and is fitted onto the X-axis motor. Magnetic field scanning is performed using the rectangular coordinate method. The Hall probe moves linearly in the XZ center plane at preset steps, resulting in directly and neatly collected data without the need for complex polar coordinate motion control logic. The control cabinet automatically filters invalid data outside the magnetic pole radius. Valid data is quickly processed using the rectangular coordinate method to generate a visual distribution chart, simplifying the data acquisition and processing process and shortening the measurement cycle. Compared with traditional polar coordinate measurement methods, efficiency is significantly improved, and the results are presented more intuitively, facilitating operators to quickly obtain magnetic field distribution information.
[0007] Preferably, a Y-axis motor is installed on one side of the horizontal guide frame. The output end of the Y-axis motor is threadedly connected to the inner wall of the vertical guide frame via a screw, used to adjust the position of the vertical guide frame. A Z-axis motor is installed at the upper end of the vertical guide frame. The drive end of the Z-axis motor is threadedly connected to the inner wall of the carrier frame via a screw, used to adjust the height of the carrier frame. The X-axis motor, Y-axis motor, and Z-axis motor achieve precise drive through screw transmission. Combined with the micro-displacement compensation of the fine-tuning stage, high-precision positioning of the Hall probe can be achieved. At the same time, the dual damping clamping of the stabilizing component and the flexible support of the lifting component work together to completely avoid the displacement of the probe rod due to vibration inertia during the measurement process, ensuring that the probe always maintains the preset posture to collect data, significantly reducing measurement errors and improving the accuracy and repeatability of magnetic field strength data.
[0008] Preferably, the upper surface of the frame is fixedly connected with eight symmetrically arranged target seats, which are used to cooperate with laser positioning to observe the horizontal state of the frame. Through the dual calibration mechanism of platform height adjustment feet and target seat laser positioning, the horizontality and flatness of the frame and the measurement reference surface are ensured, providing a precise basis for three-dimensional motion.
[0009] Preferably, the lower surface of the frame is equipped with six symmetrically arranged platform height adjustment feet for adjusting the levelness of the frame.
[0010] Preferably, the portion of the horizontal guide frame located within the frame is equipped with a first telescopic dust cover, which covers the interior of the frame. The portion of the vertical guide frame located within the horizontal guide frame is equipped with a second telescopic dust cover, which covers the interior of the horizontal guide frame. The portion of the carrier frame located within the vertical guide frame is equipped with a third telescopic dust cover, which covers the interior of the vertical guide frame. The first, second, and third telescopic dust covers correspond to the transmission connection points of the X, Y, and Z axes, respectively, and extend and retract synchronously with the moving parts, forming a full-process sealed protection. This effectively prevents dust and debris from entering the screw guide rail and other transmission mechanisms, avoiding component wear or jamming, ensuring smooth three-dimensional motion and long-term operational stability. The telescopic design of the dust covers does not affect the stroke range of the moving parts, balancing protection and equipment flexibility, extending the service life of the device, and reducing maintenance frequency and costs.
[0011] Preferably, the stabilizing component includes four control rods arranged in a mirror image. Each control rod is slidably connected to the inner wall of the carrier plate. A first damping plate is fixedly connected to each control rod, located below the probe. A second damping plate is slidably connected to each control rod, located above the probe. A stop block is fixedly connected to the upper end of each control rod, and a positioning plate is fixedly connected to the lower end. Four symmetrical springs are fixedly connected to the upper surface of the positioning plate, and the springs are sleeved on the control rod. The upper ends of the springs are fixedly connected to the lower surface of the carrier plate. The stabilizing component adopts an elastic clamping and linkage control design. During installation, the probe only needs to be inserted into the clamping plate, and the spring force automatically clamps the first and second damping plates. Synchronous locking can be achieved with a single pull of the pull plate. During disassembly, pushing the pull plate quickly releases the probe, eliminating the need for complex tools and greatly simplifying the installation and disassembly process of the Hall probe, facilitating probe maintenance, calibration, or replacement.
[0012] Preferably, a slide rod is fixedly connected to one side of the carrier plate, a pull plate is slidably connected to the slide rod, a stop block is fixedly connected to the lower edge of the pull plate near the carrier plate, the lower surface of the stop block is bent into a stepped shape for pushing the positioning plate, a guide rod is fixedly connected to the upper edge of the pull plate near the carrier plate, the surface of the guide rod is provided with an inclined limiting hole, and a pull rod is fixedly connected to the upper surface of the second damping plate, the pull rod sliding inside the limiting hole.
[0013] Preferably, a protrusion is fixedly connected to the end of the slide bar away from the carrier plate, and a pull hole is formed on the surface of the pull plate.
[0014] Preferably, the surface of the carrier plate is provided with a lifting assembly, which includes a flexible rod. The flexible rod is fixedly connected to the lower surface of the carrier plate, and one end of the flexible rod is fixedly connected to a support plate. The probe is placed on the support plate. The flexible rod and the support plate of the lifting assembly provide flexible support for the probe, avoiding deformation of the probe caused by long-term rigid contact, extending the service life of the probe and the probe. The elastic clamping structure of the stabilizing assembly can buffer the vibration and impact during movement, protecting the probe and the probe, and reducing the operating noise of the equipment.
[0015] A method for measuring the intensity of a vertical planar magnetic field includes the following steps: S1. Frame leveling calibration: The upper surface of the frame is leveled by using six symmetrical platform height adjustment feet on the lower surface of the frame in conjunction with a level to make fine adjustments. The flatness is then checked by laser positioning using eight symmetrical target seats to complete the reference surface calibration. S2. Probe installation and fixing: Insert the probe equipped with the Hall probe into the clamping plate, and the lifting assembly will provide buffer support; the spring-driven control rod will drive the first damping plate and the second damping plate to double-clamp the probe, achieving a stable fixation; S3. Initial probe positioning: Adjust the small displacement in the XYZ direction using the fine-tuning stage to make the Hall probe accurately aligned with the measurement starting point; S4. Center Plane Positioning: The control cabinet starts the Y-axis motor, which drives the Hall probe to move along the Y-axis via screw drive. The probe collects magnetic field signals, and the control cabinet analyzes the signals to locate the center plane of the magnetic field. S5. Magnetic field scanning measurement: Start the X-axis motor and Z-axis motor, and drive the probe to scan in a straight line in the XZ center plane at a preset step length through the screw drive, and collect data to form a square collection area; the first telescopic dust cover, the second telescopic dust cover and the third telescopic dust cover extend and retract synchronously, and the stabilizing component and the lifting component ensure the stability of the probe posture; S6. Data Processing Output: The control cabinet receives data, filters and removes invalid collection points, processes and analyzes the data using the rectangular coordinate method, generates a distribution chart, and displays it on the screen to complete the measurement.
[0016] In summary, the technical effects and advantages of this invention are as follows: 1. In this invention, the core solution is adapted to the magnetic field measurement of a small cyclotron accelerator with the main magnet perpendicular to the ground, while also being compatible with devices with the main magnet parallel to the ground. This solves the limitation of existing measuring devices that are only applicable to horizontal main magnets, greatly improving the versatility and applicable scenarios of the device. It eliminates the need to configure separate measuring devices for main magnets with different installation methods, thus reducing measurement costs.
[0017] 2. In this invention, the stabilizing component adopts an elastic clamping and linkage control design. During installation, the probe rod only needs to be inserted into the clamping plate, and the first damping plate and the second damping plate can be automatically clamped by the spring force. Synchronous locking can be completed by a single pull of the pull plate. During disassembly, the probe rod can be quickly released by pushing the pull plate. No complicated tools are required, which greatly simplifies the installation and disassembly process of the Hall probe and facilitates the maintenance, calibration or replacement of the probe.
[0018] 3. In this invention, the flexible rod and support plate of the lifting component provide flexible support for the probe rod, avoiding deformation of the probe rod caused by long-term rigid contact, extending the service life of the probe and probe rod, and the elastic clamping structure of the stabilizing component can buffer the vibration and impact during the movement, which protects the probe rod and probe rod and reduces the operating noise of the equipment.
[0019] 4. In this invention, the rectangular coordinate method is used for magnetic field scanning. The Hall probe moves in a straight line in the XZ center plane at a preset step size, and the collected data is directly and neatly organized. There is no need for complex polar coordinate motion control logic. The control cabinet automatically filters invalid data within the non-magnetic pole radius. The valid data is quickly processed by the rectangular coordinate method and a visual distribution chart is generated, which simplifies the data acquisition and processing process and shortens the measurement cycle. Compared with the traditional polar coordinate measurement method, the efficiency is significantly improved, and the results are presented more intuitively, making it easier for operators to quickly obtain magnetic field distribution information.
[0020] 5. In this invention, a dual calibration mechanism of platform height adjustment feet and target seat laser positioning ensures the levelness and flatness of the frame and the measurement reference surface, providing a precise foundation for three-dimensional motion. The X-axis motor, Y-axis motor, and Z-axis motor achieve precise drive through screw transmission. Combined with the micro-displacement compensation of the fine-tuning stage, high-precision positioning of the Hall probe can be achieved. At the same time, the dual damping clamping of the stabilizing component and the flexible support of the lifting component work together to completely avoid the displacement of the probe rod due to vibration inertia during the measurement process, ensuring that the probe always maintains the preset posture to collect data, significantly reducing measurement errors and improving the accuracy and repeatability of magnetic field strength data.
[0021] 6. In this invention, the first telescopic dust cover, the second telescopic dust cover, and the third telescopic dust cover correspond to the transmission connection parts of the X, Y, and Z axes, respectively. They extend and retract synchronously with the moving parts to form a full-process sealed protection, effectively preventing dust and debris from entering the transmission mechanism such as the screw guide rail, avoiding wear or jamming of parts, ensuring the smoothness of three-dimensional motion and long-term operational stability. The telescopic design of the dust cover does not affect the stroke range of the moving parts, taking into account both protection and equipment flexibility, extending the service life of the device, and reducing maintenance frequency and cost. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a vertical planar magnetic field strength measuring device according to the present invention; Figure 2 This is a rear view schematic diagram of a vertical planar magnetic field strength measuring device according to the present invention; Figure 3 This is a partial structural schematic diagram of a vertical planar magnetic field strength measuring device according to the present invention; Figure 4 In a vertical planar magnetic field strength measuring device of the present invention Figure 3 A schematic diagram of the structure at point A; Figure 5 This is a partial exploded structural diagram of a vertical planar magnetic field strength measuring device according to the present invention; Figure 6 This is a partial structural schematic diagram of a vertical planar magnetic field strength measuring device according to the present invention; Figure 7 In a vertical planar magnetic field strength measuring device of the present invention Figure 6 A schematic diagram of the exploded structure; Figure 8 This is a flowchart illustrating a method for measuring the intensity of a vertical planar magnetic field according to the present invention.
[0023] In the diagram: 1. Control cabinet; 2. Display screen; 3. Cabinet door; 4. Casters; 5. Measuring components; 51. Frame; 52. Platform height adjustable feet; 53. First telescopic dust cover; 54. Horizontal guide frame; 55. Y-axis motor; 56. Second telescopic dust cover; 57. Vertical guide frame; 58. Reinforcing frame; 59. Z-axis motor; 510. Probe; 511. Protective cover; 512. X-axis motor; 513. Carrier frame; 514. Fine-tuning table; 515. 516. Carrier plate; 517. Third telescopic dust cover; 518. Target seat; 6. Stabilizing assembly; 61. First damping plate; 62. Second damping plate; 63. Control rod; 64. Stop block; 65. Pull rod; 66. Limiting hole; 67. Guide rod; 68. Pull plate; 69. Abutment block; 610. Pull hole; 611. Protrusion; 612. Slide rod; 613. Positioning plate; 614. Spring; 7. Lifting assembly; 71. Flexible rod; 72. Support plate. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] refer to Figures 1-8 The illustrated vertical planar magnetic field strength measuring device includes a control cabinet 1. A display screen 2 is mounted on the upper surface of the control cabinet 1. A cabinet door 3 is mounted on the surface of the control cabinet 1. Casters 4 are mounted on the lower surface of the control cabinet 1. A measuring component 5 is located on one side of the control cabinet 1. The measuring component 5 includes a frame 51, which is located on one side of the control cabinet 1. A horizontal guide 54 is horizontally slidably connected to the upper surface of the frame 51. A vertical guide 57 is vertically slidably connected to the horizontal guide 54. A carrier frame 513 is vertically slidably connected to the vertical guide 57. A reinforcing frame 58 is mounted on one side of the vertical guide 57. A fine-tuning platform 51 is mounted on the upper surface of the carrier frame 513. 4. A carrier plate 515 is mounted on the upper surface of the fine-tuning stage 514. A clamping plate 516 is mounted on the surface of the carrier plate 515. A probe rod 510 for mounting the Hall probe and the three-dimensional motion platform is horizontally inserted into the clamping plate 516. A stabilizing component 6 for locking the probe rod 510 is provided on the carrier plate 515. The core of this solution is adapted to the magnetic field measurement of small cyclotron accelerators with the main magnet perpendicular to the ground. It is also compatible with devices with the main magnet parallel to the ground. This solves the limitation of existing measuring devices that are only suitable for horizontal main magnets, greatly improves the versatility and applicable scenarios of the equipment, and eliminates the need to configure separate measuring equipment for main magnets with different installation methods, thus reducing the measurement cost.
[0026] An X-axis motor 512 is mounted on one side of the frame 51. The output end of the X-axis motor 512 is threaded to the inner wall of the horizontal guide 54 via a screw, which is used to adjust the position of the horizontal guide 54. A protective cover 511 is mounted on one end of the frame 51, which is fitted onto the X-axis motor 512. The magnetic field scanning is performed using the rectangular coordinate method. The Hall probe moves linearly in the XZ center plane at a preset step size, and the collected data is directly and neatly organized without the need for complex polar coordinate motion control logic. The control cabinet 1 automatically filters invalid data within the non-magnetic pole radius and quickly processes valid data using the rectangular coordinate method to generate a visual distribution chart. This simplifies the data acquisition and processing process, shortens the measurement cycle, and significantly improves efficiency compared to the traditional polar coordinate measurement method. The results are presented more intuitively, making it easier for operators to quickly obtain magnetic field distribution information.
[0027] A Y-axis motor 55 is installed on one side of the horizontal guide frame 54. The output end of the Y-axis motor 55 is threaded to the inner wall of the vertical guide frame 57 via a screw, which is used to adjust the position of the vertical guide frame 57. A Z-axis motor 59 is installed at the upper end of the vertical guide frame 57. The drive end of the Z-axis motor 59 is threaded to the inner wall of the carrier frame 513 via a screw, which is used to adjust the height of the carrier frame 513. The X-axis motor 512, Y-axis motor 55, and Z-axis motor 59 are precisely driven by screw transmission. With the micro-displacement compensation of the fine-tuning stage 514, the high-precision positioning of the Hall probe can be achieved. At the same time, the dual damping clamping of the stabilizing component 6 and the flexible support of the lifting component 7 work together to completely avoid the displacement of the probe rod 510 due to vibration inertia during the measurement process, ensuring that the probe always maintains the preset posture to collect data, significantly reducing measurement errors and improving the accuracy and repeatability of magnetic field strength data.
[0028] The upper surface of the frame 51 is fixedly connected with eight symmetrically arranged target seats 518, which are used to cooperate with laser positioning to observe the horizontal state of the frame 51. Through the dual calibration mechanism of platform height adjustment feet 52 and laser positioning of target seats 518, the horizontality and flatness of the frame 51 and the measurement reference surface are ensured, providing a precise basis for three-dimensional motion.
[0029] The lower surface of the frame 51 is equipped with six symmetrically arranged platform height adjustment feet 52 for adjusting the levelness of the frame 51.
[0030] The horizontal guide frame 54, located within the frame 51, is equipped with a first telescopic dust cover 53, which covers the interior of the frame 51. The vertical guide frame 57, located within the horizontal guide frame 54, is equipped with a second telescopic dust cover 56, which covers the interior of the horizontal guide frame 54. The carrier frame 513, located within the vertical guide frame 57, is equipped with a third telescopic dust cover 517, which covers the interior of the vertical guide frame 57. The first telescopic dust cover 53, the second telescopic dust cover 56, and the third telescopic dust cover 517 correspond to the transmission connection points of the X, Y, and Z axes, respectively. They extend and retract synchronously with the moving parts, forming a full-process sealed protection. This effectively prevents dust and debris from entering the screw guide rail and other transmission mechanisms, avoiding wear or jamming of components, ensuring smooth three-dimensional motion and long-term operational stability. The telescopic design of the dust cover does not affect the stroke range of the moving parts, balancing protection and equipment flexibility, extending the service life of the device, and reducing maintenance frequency and costs.
[0031] The stabilizing component 6 includes four control rods 63 arranged in a mirror image. Each control rod 63 is slidably connected to the inner wall of the carrier plate 515. A first damping plate 61 is fixedly connected to each control rod 63, located below the probe rod 510. A second damping plate 62 is slidably connected to each control rod 63, located above the probe rod 510. A stop block 64 is fixedly connected to the upper end of each control rod 63, and a positioning plate 613 is fixedly connected to the lower end of each control rod 63. Four symmetrical... Spring 614 is sleeved on control rod 63. The upper end of spring 614 is fixedly connected to the lower surface of carrier plate 515. The stabilizing component 6 adopts an elastic clamping and linkage control design. During installation, only the probe 510 needs to be inserted into the clamping plate 516. The spring force of spring 614 can realize the automatic clamping of the first damping plate 61 and the second damping plate 62. With the single pull of pull plate 68, synchronous locking can be completed. During disassembly, push pull plate 68 to quickly release probe 510. No complicated tools are required, which greatly simplifies the installation and disassembly process of Hall probe and facilitates probe maintenance, calibration or replacement.
[0032] Among them, a slide rod 612 is fixedly connected to one side of the carrier plate 515, and a pull plate 68 is slidably connected to the slide rod 612. A stop block 69 is fixedly connected to the lower edge of the pull plate 68 near the carrier plate 515. The lower surface of the stop block 69 is bent into a stepped shape for pushing the positioning plate 613. A guide rod 67 is fixedly connected to the upper edge of the pull plate 68 near the carrier plate 515. An inclined limiting hole 66 is opened on the surface of the guide rod 67. A pull rod 65 is fixedly connected to the upper surface of the second damping plate 62. The pull rod 65 slides inside the limiting hole 66.
[0033] Among them, the end of the slide bar 612 away from the carrier plate 515 is fixedly connected to the protrusion 611, and the surface of the pull plate 68 is provided with a pull hole 610.
[0034] The carrier plate 515 has a support assembly 7 on its surface. The support assembly 7 includes a flexible rod 71, which is fixedly connected to the lower surface of the carrier plate 515. One end of the flexible rod 71 is fixedly connected to a support plate 72. The probe 510 is placed on the support plate 72. The flexible rod 71 and the support plate 72 of the support assembly 7 provide flexible support for the probe 510, avoiding deformation of the probe 510 caused by long-term rigid contact, and extending the service life of the probe and the probe 510. The elastic clamping structure of the stabilizing assembly 6 can buffer the vibration and impact during the movement, which protects the probe 510 and the probe and reduces the operating noise of the equipment.
[0035] A method for measuring the intensity of a vertical planar magnetic field includes the following steps: S1. Frame 51 horizontal calibration: The upper surface of the frame 51 is leveled by using six symmetrical platform height adjustment feet 52 on the lower surface of the frame 51 in conjunction with a level instrument for fine adjustment. The flatness is checked by laser positioning using eight symmetrical target seats 518, and the reference surface calibration is completed. S2. Installation and fixing of probe 510: Insert probe 510 equipped with Hall probe into clamping plate 516, and lift assembly 7 provides buffer lift; spring 614 drives control rod 63 to drive first damping plate 61 and second damping plate 62 to double clamp probe 510, achieving stable fixing. S3. Initial probe positioning: Adjust the small displacement in the XYZ direction using the fine-tuning stage 514 to make the Hall probe accurately aligned with the measurement starting point; S4. Center plane positioning: Control cabinet 1 starts the Y-axis motor 55, which drives the Hall probe to move along the Y-axis through screw transmission. The probe collects magnetic field signals, and control cabinet 1 analyzes the signals to locate the center plane of the magnetic field. S5. Magnetic field scanning measurement: Start the X-axis motor 512 and Z-axis motor 59, and drive the probe to scan in a straight line in the XZ center plane at a preset step length through the screw drive, and collect data to form a square collection area; the first telescopic dust cover 53, the second telescopic dust cover 56 and the third telescopic dust cover 517 extend and retract synchronously, and the stabilizing component 6 and the lifting component 7 ensure the stability of the probe posture. S6. Data Processing Output: Control cabinet 1 receives data, filters and removes invalid collection points, processes and analyzes the data using the rectangular coordinate method, generates a distribution chart, and presents it on display screen 2 to complete the measurement.
[0036] The working principle of this invention is as follows: The six symmetrical platform height adjustment feet 52 on the lower surface of the frame 51, in conjunction with a level, are used for fine-tuning to ensure that the upper surface of the frame 51 is level. Simultaneously, eight symmetrically arranged target seats 518 are used to further verify the flatness of the frame 51 using laser positioning, laying the foundation for the accuracy of subsequent three-dimensional motion. The connection points between the horizontal guide frame 54 and the frame 51, the vertical guide frame 57 and the horizontal guide frame 54, and the carrier frame 513 and the vertical guide frame 57 are respectively sealed and protected by a first telescopic dust cover 53, a second telescopic dust cover 56, and a third telescopic dust cover 517. The dust covers extend and retract synchronously with the sliding of the moving parts, preventing dust and debris from entering the transmission mechanism and ensuring the smoothness of the X, Y, and Z axis movements. The probe 510 equipped with the Hall probe is horizontally inserted into the clamping plate 516. The lower surface of the probe 510 is in contact with the support plate 72 of the lifting assembly 7. The flexible rod 71 supports the support plate 72 to form a buffer lift, avoiding wear caused by direct rigid contact of the probe 510, and initially limiting the vertical displacement of the probe 510. In its natural state, the positioning plate 613 is pushed upward by the elastic force of the spring 614, causing the control rod 63 to move upward, so that the first damping plate 61 is pressed against the lower surface of the probe 510 to form a lower support. At the same time, the guide rod 67, in conjunction with the limiting hole 66, restricts the position of the pull rod 65, thereby causing the second damping plate 62 to press against the upper part of the probe 510. Finally, through the double clamping of the first damping plate 61 and the second damping plate 62, combined with the continuous elastic force of the spring 614, the probe 510 is stably fixed, preventing the probe 510 from shifting due to equipment vibration or motion inertia during the measurement process. The micro-displacement in the XYZ directions can be adjusted by the fine-tuning stage 514 on the carrier 513 to ensure that the initial position of the Hall probe is accurately aligned with the measurement starting point. The control cabinet 1 issues a control command to start the Y-axis motor 55. The Y-axis motor 55 drives the vertical guide 57 to slide vertically along the horizontal guide 54 through the screw drive, thereby driving the Hall probe to move along the Y-axis. During the movement, the Hall probe collects the magnetic field signal in real time and transmits the data to the control cabinet 1. The control cabinet 1 accurately locates the center plane of the cyclotron's magnetic field by analyzing the intensity change of the magnetic field signal. After the center plane is determined, the control cabinet 1 starts the X-axis motor 512 and the Z-axis motor 59 in sequence: the X-axis motor 512 drives the horizontal guide 54 to slide horizontally along the frame 51 through the screw drive, and the Z-axis motor 59 drives the carrier 513 to slide vertically along the vertical guide 57 through the screw drive. Under the drive of the three-dimensional motion platform, the Hall probe performs a linear scanning motion on the XZ center plane according to the preset acquisition step size, and sequentially acquires the magnetic field strength data of all acquisition points on the linear path. All acquisition points eventually form a square acquisition area. During the scanning process, the telescopic dust cover extends and retracts synchronously with the moving parts, always maintaining the sealed protection of the transmission mechanism. The stabilizing component 6 continuously applies clamping force to the probe rod 510. Combined with the flexible support of the lifting component 7, it ensures that the Hall probe is stable in posture during high-speed movement and avoids measurement errors caused by displacement. Control cabinet 1 receives all magnetic field data collected by Hall probe, automatically filters and eliminates invalid collection points within the non-magnetic pole radius, retains valid measurement data, directly processes and analyzes the valid data using the rectangular coordinate method, generates a magnetic field intensity distribution chart, and finally presents the measurement results intuitively through the display screen 2 on control cabinet 1, thus completing the entire magnetic field intensity measurement process. The control rod 63, damping plate and spring 614 of the stabilizing component 6 form an elastic clamping structure, which can realize the quick installation and removal of the probe 510 and buffer the vibration and impact during the movement. The linkage design of the pull plate 68 and the guide rod 67 can realize the synchronous clamping of the upper and lower damping plates by a single pull, improving the ease of operation. The flexible rod 71 of the support assembly 7 cooperates with the support plate 72 to provide flexible support during the installation and measurement of the probe 510, avoid long-term deformation of the probe 510 under stress, reduce wear caused by rigid contact, and extend the service life of the probe. When disassembling probe 510, push pull plate 68 towards the carrier plate 515, which will cause block 69 and guide rod 67 to move. Then, the first damping plate 61 and the second damping plate 62 are squeezed and moved away from each other, thus losing their restraint on guide rod 67. Spring 614 is deformed by force, and probe 510 can be removed for maintenance.
[0037] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A vertical plane magnetic field strength measuring device, comprising a control cabinet (1), characterized in that: The control cabinet (1) has a display screen (2) mounted on its upper surface, a cabinet door (3) mounted on its surface, casters (4) mounted on its lower surface, and a measuring component (5) mounted on one side of the control cabinet (1). The measuring component (5) includes a frame (51) located on one side of the control cabinet (1). A horizontal guide (54) is slidably connected to the upper surface of the frame (51), and a vertical guide (57) is slidably connected to the horizontal guide (54). 7) A vertically sliding frame (513) is connected to the vertical guide frame (57). A reinforcing frame (58) is installed on one side of the vertical guide frame (57). A fine-tuning table (514) is installed on the upper surface of the frame (513). A carrier plate (515) is installed on the upper surface of the fine-tuning table (514). A clamping plate (516) is installed on the surface of the carrier plate (515). A probe rod (510) for installing the Hall probe and the three-dimensional motion platform is horizontally inserted in the clamping plate (516). A stabilizing component (6) for locking the probe rod (510) is provided on the carrier plate (515). The stabilizing component (6) includes four control rods (63) arranged in a mirror image. The control rods (63) are slidably connected to the inner wall of the carrier plate (515). A first damping plate (61) is fixedly connected to the control rod (63) and is located below the probe (510). A second damping plate (62) is slidably connected to the control rod (63) and is located above the probe (510). A stop block (64) is fixedly connected to the upper end of the control rod (63). A positioning plate (613) is fixedly connected to the lower end of the control rod (63). Four symmetrical springs (614) are fixedly connected to the upper surface of the positioning plate (613). The springs (614) are sleeved on the control rod (63), and the upper end of the springs (614) is fixedly connected to the lower surface of the carrier plate (515).
2. The vertical planar magnetic field strength measuring device according to claim 1, characterized in that: An X-axis motor (512) is installed on one side of the frame (51). The output end of the X-axis motor (512) is threaded to the inner wall of the horizontal guide (54) via a screw, and is used to adjust the position of the horizontal guide (54). A protective cover (511) is installed on one end of the frame (51). The protective cover (511) is fitted onto the X-axis motor (512). A Y-axis motor (55) is installed on one side of the horizontal guide (54). The output end of the Y-axis motor (55) is threaded to the inner wall of the vertical guide (57) via a screw, and is used to adjust the position of the vertical guide (57). A Z-axis motor (59) is installed on the upper end of the vertical guide (57). The drive end of the Z-axis motor (59) is threaded to the inner wall of the carrier (513) via a screw, and is used to adjust the height of the carrier (513).
3. The vertical planar magnetic field strength measuring device according to claim 1, characterized in that: The upper surface of the frame (51) is fixedly connected with eight symmetrically arranged target seats (518) for use in conjunction with laser positioning to observe the horizontal state of the frame (51).
4. The vertical planar magnetic field strength measuring device according to claim 1, characterized in that: The lower surface of the frame (51) is equipped with six symmetrically arranged platform height adjustment feet (52) for adjusting the levelness of the frame (51).
5. A vertical planar magnetic field strength measuring device according to claim 1, characterized in that: The portion of the horizontal guide (54) located in the frame (51) is equipped with a first telescopic dust cover (53), which covers the interior of the frame (51). The portion of the vertical guide (57) located in the horizontal guide (54) is equipped with a second telescopic dust cover (56), which covers the interior of the horizontal guide (54). The portion of the carrier (513) located in the vertical guide (57) is equipped with a third telescopic dust cover (517), which covers the interior of the vertical guide (57).
6. The vertical planar magnetic field strength measuring device according to claim 1, characterized in that: A slide rod (612) is fixedly connected to one side of the carrier plate (515). A pull plate (68) is slidably connected to the slide rod (612). A stop block (69) is fixedly connected to the lower edge of the pull plate (68) near the carrier plate (515). The lower surface of the stop block (69) is bent into a stepped shape and is used to push the positioning plate (613). A guide rod (67) is fixedly connected to the upper edge of the pull plate (68) near the carrier plate (515). An inclined limiting hole (66) is opened on the surface of the guide rod (67). A pull rod (65) is fixedly connected to the upper surface of the second damping plate (62). The pull rod (65) slides inside the limiting hole (66).
7. A vertical planar magnetic field strength measuring device according to claim 6, characterized in that: The end of the slide bar (612) away from the carrier plate (515) is fixedly connected to a protrusion (611), and the surface of the pull plate (68) is provided with a pull hole (610).
8. A vertical planar magnetic field strength measuring device according to claim 1, characterized in that: The surface of the carrier plate (515) is provided with a lifting assembly (7), the lifting assembly (7) includes a flexible rod (71), the flexible rod (71) is fixedly connected to the lower surface of the carrier plate (515), one end of the flexible rod (71) is fixedly connected to a support plate (72), and the probe (510) is placed on the support plate (72).
9. A method for measuring the intensity of a vertical planar magnetic field, characterized in that, Includes the following steps: S1. Frame (51) level calibration: The upper surface of the frame (51) is leveled by using the six symmetrical platform height adjustment feet (52) on the lower surface of the frame (51) in conjunction with the level instrument for fine adjustment. The flatness is checked by laser positioning using eight symmetrical target seats (518) to complete the reference surface calibration. S2. Installation and fixing of probe (510): Insert the probe (510) equipped with Hall probe into the clamp plate (516), and the lifting assembly (7) provides buffer lifting; the spring (614) drives the control rod (63) to drive the first damping plate (61) and the second damping plate (62) to double clamp the probe (510) and achieve stable fixing; S3. Initial positioning of the probe: Adjust the small displacement in the XYZ direction by adjusting the fine adjustment stage (514) to make the Hall probe accurately aligned with the measurement starting point; S4, Center plane positioning: The control cabinet (1) starts the Y-axis motor (55), which drives the Hall probe to move along the Y-axis through the screw drive. The probe collects the magnetic field signal, and the control cabinet (1) analyzes the signal to locate the center plane of the magnetic field. S5. Magnetic field scanning measurement: Start the X-axis motor (512) and Z-axis motor (59), and drive the probe to scan in a straight line at the XZ center plane with a preset step length through the screw drive, and collect data to form a square collection area; the first telescopic dust cover (53), the second telescopic dust cover (56) and the third telescopic dust cover (517) extend and retract synchronously, and the stabilizing component (6) and the lifting component (7) ensure the stability of the probe posture; S6. Data processing output: The control cabinet (1) receives data, filters and removes invalid collection points, processes and analyzes the data using the rectangular coordinate method, generates a distribution chart and presents it on the display screen (2), and completes the measurement.
Citation Information
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