Three-dimensional magnetic field measurement adjusting device based on AMR sensor

Abstract

The utility model relates to the technical field of physical experiment teaching equipment, and particularly discloses a three-dimensional magnetic field measurement adjusting device based on an AMR sensor, which comprises a main guide rail, two support frames are slidably connected outside the main guide rail, and an electrified coil is fixedly mounted on the upper surface of each support frame. The electrified coil is connected to the main guide rail in a sliding mode through the supporting frame, meanwhile, the electrified coil can be freely detached on the guide rail according to the use condition and can move, and therefore a pair of Helmholtz coils is formed, and only one electrified coil can be placed on the guide rail. The three-dimensional turntable can perform three-axis movement in space through mutual cooperation of the main guide rail, the secondary guide rail and the vertical guide rail, and can accurately position and move to a position of a certain point in the space, so that measurement of different magnetic fields is completed, and meanwhile, the device is not closed, so that learners can conveniently experience concrete of the magnetic fields during use.

Description

Technical Field

[0001] This utility model relates to the field of physics experimental teaching equipment technology, and in particular to a three-dimensional magnetic field measurement and adjustment device based on an AMR sensor. Background Technology

[0002] Magnetic fields are a crucial component of electromagnetic theory. Maxwell's equations successfully unified electricity and magnetism, describing the detailed relationships between electric fields, magnetic fields, and the currents and charges that generate these vector fields. In-depth research on magnetic fields contributes to further refining electromagnetic theory. Magnetic fields also hold a significant position in quantum mechanics; for example, pure magnetic fields are currently believed to be effects caused by virtual photons. Research on magnetic fields helps to deepen our understanding of electromagnetic interactions in quantum mechanics. In practical applications, in-depth research on magnetic fields has led to significant technological breakthroughs in fields such as energy, medicine, and astronomical observation. Therefore, the study of magnetic fields plays a vital role in advancing the development and practical applications of physics.

[0003] Magnetic field measurement experiments are an important part of physics teaching. These experiments can help students better understand the abstract physical concept of magnetic field, making the experimental setup for classroom teaching quite important.

[0004] Currently, traditional magnetic field measurement instruments are too enclosed, making it difficult for learners to experience the concrete nature of magnetic fields. Furthermore, traditional instruments can only measure a limited range of magnetic fields. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a three-dimensional magnetic field measurement and adjustment device based on an AMR sensor. This solves the technical problems of excessively encapsulated experimental devices, which prevent learners from experiencing the concrete nature of the magnetic field during use, and the limited range of magnetic field types that traditional experimental devices can measure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A three-dimensional magnetic field measurement and adjustment device based on an AMR sensor includes a main guide rail, with two support frames slidably connected to the outside of the main guide rail. Each support frame has an energized coil fixedly mounted on its upper surface. A moving mechanism is provided between the two energized coils. The moving mechanism includes a secondary guide rail, a vertical guide rail, an adjusting block, and adjusting screws. The secondary guide rail is slidably connected to the outside of the main guide rail, the vertical guide rail is slidably connected to the outside of the secondary guide rail, and the adjusting block is slidably connected to the outside of this guide rail. The adjusting screws are threadedly connected to the inside of the adjusting block. Four leveling screws are threadedly connected to the bottom of the main guide rail. A three-dimensional disk is provided outside the adjusting block. The three-dimensional disk includes an inner disk structure and an outer disk structure. The inner disk structure includes a connecting rod, an inner disk ring, a second circumferential track, a rotating disk, an inner disk scale pointer, an operating handle, and an AMR sensor body. The outer disk structure includes a mounting ring, a first circumferential track, a rotating ring, a connecting ring, and a mounting block.

[0008] The mounting ring is fixedly installed on the outside of the adjusting block. Circular track one is opened on the outside of the mounting ring. One end of the rotating ring is rotatably connected to the inside of circular track one. The connecting ring is slidably connected to the other end of the rotating ring. The mounting block is fixedly installed on the outside of the connecting ring. The pressure screw is threadedly connected to the inside of the mounting block. There are two mounting blocks. An outer dial scale pointer is fixedly installed on the outside of the connecting ring. The connecting rod is rotatably connected to the inside of the mounting block. There are two inner disc rings, both of which are set on the outside of the connecting rod. There are two circular tracks two, each opened on the outside of the two inner disc rings. Both ends of the rotating disc are rotatably connected to the outside of the two inner disc rings. There are two connecting rods. Each inner disc ring has a connecting groove on its outside. The connecting rod is rotatably connected to the inside of the two connecting grooves. The connecting rod has a threaded groove inside, and a fixing screw is threadedly connected inside the threaded groove. The fixing screw is movably connected to the outside of the upper inner disc ring.

[0009] Preferably, the mounting block has an internal threaded connection with a pressure screw, which is fitted to the outside of the connecting rod.

[0010] Preferably, the inner disc ring, the mounting ring, and the connecting ring have threaded holes at both ends, and the inner disc ring and the connecting ring at the top are provided with mounting screws at both ends, which are threaded into the threaded holes.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By setting up a main guide rail and cooperating with a vertical guide rail, the energized coil is slidably connected to the main guide rail through a support frame. During use, the energized coil can be arbitrarily disassembled and moved on the guide rail according to the usage situation, thus forming a pair of Helmholtz coils. Alternatively, only one energized coil can be placed on the guide rail. The three-dimensional turntable can move in three axes in space through the cooperation of the main guide rail, secondary guide rail and vertical guide rail, and can accurately locate and move to a certain point in space, thereby completing the measurement of different magnetic fields. At the same time, the device is not enclosed, which makes it easy for learners to experience the concreteness of magnetic fields when using it.

[0013] Second, by setting a pressure screw, which works in conjunction with the connecting rod, the pressure screw fits against the outside of the connecting rod, allowing the rotating disk to lock at the required tilt angle, thus ensuring the stability of the rotating disk. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Structural diagram of the vertical guide rail;

[0017] Figure 3 This utility model Figure 5 Exploded view of the inner disc ring;

[0018] Figure 4 This utility model Figure 5 Exploded view of the mounting ring;

[0019] Figure 5 This utility model Figure 1 Enlarged structural diagram of A in the middle.

[0020] Legend: 1. Main guide rail; 2. Support frame; 3. Powered coil; 4. Secondary guide rail; 5. Vertical guide rail; 6. Adjusting block; 7. Adjusting screw; 8. Leveling screw; 9. Connecting rod; 10. Inner disc ring; 11. Circular track two; 12. Rotating disc; 13. Inner disc scale pointer; 14. Operating handle; 15. AMR sensor body; 16. Connecting groove; 17. Threaded groove; 18. Fixing screw; 19. Mounting ring; 20. Circular track one; 21. Rotating ring; 22. Connecting ring; 23. Mounting block; 24. Pressure screw; 25. Threaded hole; 26. Mounting screw; 27. Outer disc scale pointer. Detailed Implementation

[0021] This application provides a three-dimensional magnetic field measurement and adjustment device based on an AMR sensor, which effectively solves the technical problems of excessively encapsulated experimental devices, making it impossible for learners to experience the concreteness of the magnetic field during use, and the limited range of magnetic field types that traditional experimental devices can measure.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application embodiment effectively solves the problems of excessively encapsulated experimental devices, preventing learners from experiencing the concreteness of the magnetic field during use, and the limited range of magnetic field types that traditional experimental devices can measure. The overall approach is as follows:

[0024] To address the problems existing in the prior art, this utility model provides a three-dimensional magnetic field measurement and adjustment device based on an AMR sensor, including a main guide rail 1. Two support frames 2 are slidably connected to the outside of the main guide rail 1. An energized coil 3 is fixedly installed on the upper surface of each support frame 2. A moving mechanism is provided between the two energized coils 3. The moving mechanism includes a secondary guide rail 4, a vertical guide rail 5, an adjusting block 6, and an adjusting screw 7. The secondary guide rail 4 is slidably connected to the outside of the main guide rail 1, the vertical guide rail 5 is slidably connected to the outside of the secondary guide rail 4, and the adjusting block 6 is slidably connected to the outside of the secondary guide rail 1. The adjusting screw 7 is threaded into the inside of the adjusting block 6 and connected to the outside of the secondary guide rail 4. Four leveling screws 8 are threaded into the bottom of the main guide rail 1. A three-dimensional disk is set on the outside of the adjusting block 6. The three-dimensional disk includes an inner disk structure and an outer disk structure. The inner disk structure includes a connecting rod 9, an inner disk ring 10, a second circumferential track 11, a rotating disk 12, an inner disk scale pointer 13, an operating handle 14, and an AMR sensor body 15. The outer disk structure includes a mounting ring 19, a first circumferential track 20, a rotating ring 21, a connecting ring 22, and a mounting block 23.

[0025] Mounting ring 19 is fixedly mounted on the outside of adjusting block 6. Circular track 20 is opened on the outside of mounting ring 19. One end of rotating ring 21 is rotatably connected to the inside of circular track 20. Connecting ring 22 is slidably connected to the other end of rotating ring 21. Mounting block 23 is fixedly mounted on the outside of connecting ring 22. Pressure screw 24 is threadedly connected to the inside of mounting block 23. There are two mounting blocks 23. An outer dial scale pointer 27 is fixedly mounted on the outside of connecting ring 22.

[0026] The connecting rod 9 is rotatably connected inside the mounting block 23. There are two inner disc rings 10, both of which are located outside the connecting rod 9. There are two circumferential tracks 11, which are respectively opened outside the two inner disc rings 10. The two ends of the rotating disk 12 are rotatably connected to the outside of the two inner disc rings 10. There are two connecting rods 9, and each inner disc ring 10 has a connecting groove 16 on its outside. The connecting rod 9 is rotatably connected inside the two connecting grooves 16.

[0027] The connecting rod 9 has a threaded groove 17 inside, and a fixing screw 18 is threaded inside the threaded groove 17. The fixing screw 18 is movably connected to the outside of the upper inner ring 10, which is the connection between the connecting rod 9 and the inner ring 10.

[0028] The mounting block 23 has an internal threaded connection with a pressure screw 24, which fits against the outside of the connecting rod 9. The inner disc ring 10, the mounting ring 19, and the connecting ring 22 have threaded holes 25 at both ends. The inner disc ring 10 and the connecting ring 22 located at the top are provided with mounting screws 26 at both ends, which are threaded into the threaded holes 25.

[0029] The leveling screw 8 can be used to level the main guide rail 1, so that the entire experimental device structure is horizontal. The surface of each guide rail has millimeter scales.

[0030] The pressure screw 24 applies pressure to the connecting rod 9, allowing its rotating disc 12 to lock at the required tilt angle, such as in the horizontal and vertical planes.

[0031] In actual devices, two graduated pointers are used to mark the degrees of the circumference on the track surface. The spatial orientation of the chip can be read from the pointers.

[0032] Mounting screw 26 and threaded hole 25 ensure the stability of the entire track structure.

[0033] The rotating parts are the rotating disk 12 and the rotating ring 21. The two rotating objects are provided with a circular rotation track by a bearing-type enclosure. The two are then connected by a connecting rod 9. At the same time, the connecting rod 9 can change the tilt angle of the disk. This structure allows the AMR sensor to rotate in all directions while keeping the point of contact stationary.

[0034] Working principle:

[0035] The first step involves slidably connecting the energized coil 3 to the main guide rail 1 via the support frame 2. During use, the energized coil 3 can be arbitrarily disassembled and moved on the guide rail according to the usage, thus forming a pair of Helmholtz coils. The three-dimensional turntable can move in three axes in space through the cooperation of the main guide rail 1, the secondary guide rail 4, and the vertical guide rail 5. The three-dimensional turntable can be precisely positioned on the vertical guide rail 5 by adjusting the screw 7. Rotating the pressure screw 24 moves it away from the connecting rod 9, at which point the inner ring 10 can be rotated. When rotated to the appropriate position, the pressure screw 24 is rotated again to tightly fit against the outside of the connecting rod 9, at which point the inner ring 10 is fixed, and the device is complete.

[0036] The second step involves determining the magnetization angle of the magnetoelectric material inside the sensor. This angle is often specified in the chip manufacturer's instructions as the orientation of a specific pin on the chip. In subsequent references, the measurement axis of the AMR sensor will be collectively referred to as the "chip pin orientation." With the three-dimensional disk placed horizontally, initially, both the inner disk pointer 13 and the outer disk pointer 27 point to the 0 mark. Simultaneously rotating the inner and outer pointers (i.e., rotating the ring 21 and the disk 12 synchronously), the maximum voltage point (the direction of the horizontal component of the magnetic field) is found using the chip pin orientation, i.e., the position the pointers point to. The horizontal angle is then read from the pointers. The rotating ring 21 remains stationary. In the case of angle 1, rotate the rotating disk 12 to a vertical position. At this time, the disk surface completely coincides with the plane where the magnetic field is located. Rotate the disk 12 in this plane to find the point of maximum voltage. This will give you the angle between the magnetic field direction and the horizontal plane. By using these two angles, you can directly measure the vector nature of the magnetic field. At the same time, reading the voltage value will also give you the magnitude of the magnetic field strength at that point. Alternatively, you can establish a spatial coordinate system, rotate the disk 12, and point the chip pins toward the X, Y, and Z axes respectively. Measure the magnitude of the projected magnetic field strength on each axis. Then, through vector synthesis calculation, you can obtain the magnetic field strength and its vector direction data.

[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A three-dimensional magnetic field measurement and adjustment device based on an AMR sensor, comprising a main guide rail (1), characterized in that, The main guide rail (1) has two support frames (2) externally slidably connected. Each support frame (2) has an energized coil (3) fixedly installed on its upper surface. A moving mechanism is provided between the two energized coils (3). The moving mechanism includes a secondary guide rail (4), a vertical guide rail (5), an adjusting block (6), and an adjusting screw (7). The secondary guide rail (4) is slidably connected to the outside of the main guide rail (1), the vertical guide rail (5) is slidably connected to the outside of the secondary guide rail (4), the adjusting block (6) is slidably connected to the outside of the secondary guide rail (4), and the adjusting screw (7) is threadedly connected to the inside of the adjusting block (6). Among them, the bottom of the main guide rail (1) is threaded with four leveling screws (8), and the outside of the adjustment block (6) is provided with a three-dimensional disk. The three-dimensional disk includes an inner disk structure and an outer disk structure. The inner disk structure includes a connecting rod (9), an inner disk ring (10), a second circumferential track (11), a rotating disk (12), an inner disk scale pointer (13), an operating handle (14), and an AMR sensor body (15). The outer disk structure includes a mounting ring (19), a first circumferential track (20), a rotating ring (21), a connecting ring (22), and a mounting block (23).

2. The three-dimensional magnetic field measurement and adjustment device based on an AMR sensor as described in claim 1, characterized in that, The mounting ring (19) is fixedly installed on the outside of the adjusting block (6), the circumferential track (20) is opened on the outside of the mounting ring (19), one end of the rotating ring (21) is rotatably connected to the inside of the circumferential track (20), the connecting ring (22) is slidably connected to the other end of the rotating ring (21), the mounting block (23) is fixedly installed on the outside of the connecting ring (22), and the pressure screw (24) is threadedly connected to the inside of the mounting block (23). There are two mounting blocks (23), and an outer dial pointer (27) is fixedly mounted on the outside of the connecting ring (22).

3. The three-dimensional magnetic field measurement and adjustment device based on an AMR sensor as described in claim 1, characterized in that, The connecting rod (9) is rotatably connected to the inside of the mounting block (23). There are two inner disc rings (10), both of which are set outside the connecting rod (9). There are two circumferential tracks (11), which are respectively opened outside the two inner disc rings (10). The two ends of the rotating disk (12) are rotatably connected to the outside of the two inner disc rings (10). There are two connecting rods (9), and each inner ring (10) has a connecting groove (16) on its outside. The connecting rod (9) is rotatably connected to the inside of the two connecting grooves (16).

4. The three-dimensional magnetic field measurement and adjustment device based on an AMR sensor as described in claim 1, characterized in that, The connecting rod (9) has a threaded groove (17) inside, and a fixing screw (18) is threaded inside the threaded groove (17); The fixing screw (18) is movably connected to the outside of the upper inner disc ring (10).

5. The three-dimensional magnetic field measurement and adjustment device based on an AMR sensor as described in claim 1, characterized in that, The mounting block (23) has a pressure screw (24) internally threaded. The pressure screw (24) is attached to the outside of the connecting rod (9).

6. The three-dimensional magnetic field measurement and adjustment device based on an AMR sensor as described in claim 1, characterized in that, The inner ring (10), mounting ring (19) and connecting ring (22) are provided with threaded holes (25) at both ends; Among them, the inner disc ring (10) and the connecting ring (22) located at the top are provided with mounting screws (26) at both ends, and the mounting screws (26) are threaded into the threaded hole (25).

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