Magnetic measurement system

Abstract

This invention provides a magnetic measurement system. The magnetic measurement system includes a mounting base (1), a tilt adjustment device (2), and a sample rod (3). The tilt adjustment device (2) is mounted on the mounting base (1) and includes a base (21) and an adjustment part. One end of the sample rod (3) is connected to a ball joint (52). A ball cup (53) is provided on the base (21). The ball joint (52) and the ball cup (53) are ball-jointed. The adjustment part is driven to connect to the sample rod (3), and the adjustment part can drive the sample rod (3) to remain vertical. The magnetic measurement system provided by this invention can solve the problem that the sample rod of the existing magnetic measurement system will tilt or swing under the influence of factors such as its length, elastic modulus, and stress, causing unnecessary vibration of the sample and resulting in distorted detection results.

Description

Technical Field

[0001] This utility model relates to the field of magnetic measurement technology, and more specifically, to a magnetic measurement system. Background Technology

[0002] Magnetic measurement systems are precision systems used to quantify the magnetic properties of materials. Laser-assisted gradient magnetometry (LAGM) is one such technique, utilizing laser technology and precise magnetic field manipulation to detect magnetic changes in materials with higher resolution and sensitivity, particularly at the nanoscale, where it demonstrates unique advantages. The applications of magnetic measurement systems are diverse, including but not limited to basic research in scientific laboratories, quality control on industrial production lines, and their indispensable value in understanding the microstructure of materials, improving the performance of new materials, and ensuring product quality in industrial production.

[0003] Magnetic measurement systems detect the magnetism of materials by emitting a magnetic field to cause the sample to vibrate. However, in addition to the effect of the magnetic field, the sample rod used to support the sample may tilt or swing under the influence of various factors such as length, elastic modulus and force, causing unnecessary vibration of the sample and thus distorting the test results, which seriously reduces the accuracy and reliability of the test results. Utility Model Content

[0004] The main purpose of this invention is to provide a magnetic measurement system that can solve the problem that the sample rod of the existing magnetic measurement system will tilt or swing under the influence of factors such as its length, elastic modulus, and force, resulting in unnecessary vibration of the sample and distortion of the test results.

[0005] To achieve the above objectives, according to one aspect of the present invention, a sample fixing device is provided, including a mounting base, an angle adjustment device, and a sample rod. The angle adjustment device is disposed on the mounting base and includes a base and an adjustment part. One end of the sample rod is connected to a ball joint, and a ball cup is disposed on the base. The ball joint and the ball cup are ball-jointed. The adjustment part is driven to the sample rod and can drive the sample rod to remain vertical.

[0006] Furthermore, the base includes a hollow box with an opening facing downwards, a sample rod is movably connected to the top of the inner side of the box and extends vertically downwards, and an adjustment part is disposed on the inner wall of the box and is drivenly connected to the sample rod.

[0007] Furthermore, the sample rod is suspended on the tilt adjustment device and extends into the mounting base, with a sample holder provided at the end of the sample rod that extends into the mounting base.

[0008] Furthermore, a connecting rod is provided between the sample rod and the ball joint, and the adjustment part is driven to connect with the connecting rod.

[0009] Furthermore, the adjustment section includes a piezoelectric block, which is disposed on the inner wall of the chamber and drivenly connected to the sample rod.

[0010] Furthermore, multiple piezoelectric blocks are evenly spaced along the circumference of the sample rod.

[0011] Furthermore, the magnetic measurement system also includes a first moving component, which is mounted on the mounting base. The tilt adjustment device is mounted on the first moving component, and the first moving component can drive the tilt adjustment device to move along at least one of the X-axis, Y-axis or Z-axis.

[0012] Furthermore, the magnetic measurement system also includes a vibration meter, which is used to detect the vibration of the sample.

[0013] Furthermore, a second moving component is provided at the bottom of the vibration meter, which can drive the vibration meter to move along at least one of the X-axis, Y-axis or Z-axis.

[0014] Furthermore, the magnetic measurement system also includes a magnetic field generator, which is installed in the mounting base and is capable of providing a magnetic field to the detection position.

[0015] Applying the technical solution of this utility model, the mounting base serves as the foundation of the entire magnetic measurement system, providing stability and support. Its function is to fix other components, ensuring the structural integrity and operational stability of the system. The tilt adjustment device is used to adjust the tilt angle of the sample rod, ensuring that the sample rod is always in a vertical state. The tilt adjustment device includes a base and an adjustment part. The base is used to install and connect the sample rod, and also provides a mounting foundation for the adjustment part. The adjustment part typically includes components such as a piezoelectric block, a pneumatic rod, a hydraulic rod, or an electric push rod, used to adjust the angle of the sample rod, ensuring that the sample rod always remains vertical, preventing vibration or swaying of the sample rod, or intervening in a timely manner to control the amplitude of vibration or swaying when vibration or swaying of the sample rod is detected. The sample rod is used to support and fix the sample, keeping it stable and enabling it to be delivered to the detection position for testing. One end of the sample rod is connected to a ball joint, and a ball cup is set on the base. The ball joint and the ball cup are engaged by a ball joint, which provides the sample rod with greater freedom of movement and makes it more flexible. This increases the range of adjustable angles of the sample rod by the adjustment unit, as well as the sensitivity of the sample rod to angle adjustments by the adjustment unit. This ensures that the sample rod can respond quickly to angle adjustments by the adjustment unit within a wider range and avoids unnecessary vibrations to the sample other than those caused by a magnetic field.

[0016] The magnetic measurement system proposed in this invention allows the sample rod to be freely adjusted in angle within the ball cup on the base through the ball joint and ball cup joint. Combined with the adjustment part for adjusting the angle of the sample rod, it ensures that the sample rod can be adjusted accordingly based on the swing caused by factors such as the length of the sample rod, elastic modulus, and force conditions, using the ball joint as the fulcrum, to compensate for any undesirable tilt, avoid unnecessary vibration of the sample, and thus ensure the authenticity and accuracy of the test results. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 The front view of the magnetic measurement system of this utility model is shown;

[0019] Figure 2 A cross-sectional view of the tilt adjustment device of the magnetic measurement system of this utility model is shown;

[0020] Figure 3 A bottom view of the tilt adjustment device of the magnetic measurement system of this invention is shown.

[0021] The above figures include the following reference numerals:

[0022] 1. Mounting base; 2. Tilt adjustment device; 21. Base; 23. Piezoelectric block; 24. Support base; 3. Sample rod; 4. Sample holder; 51. Connecting rod; 52. Ball joint; 53. Ball cup; 54. Connecting ring; 55. Coupling part; 6. First moving assembly; 61. First slide; 62. Drive part; 63. Lifting part; 71. Pole head; 72. Excitation coil; 73. Magnetic yoke; 74. Gradient coil; 8. Vibration meter; 81. Second moving assembly; 9. Vibration isolation part. Detailed Implementation

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] See also Figures 1 to 3 As shown, this utility model provides a magnetic measurement system, which includes a mounting base 1, an tilt adjustment device 2, and a sample rod 3. The tilt adjustment device 2 is mounted on the mounting base 1 and includes a base 21 and an adjustment part. One end of the sample rod 3 is connected to a ball joint 52, and a ball cup 53 is provided on the base 21. The ball joint 52 and the ball cup 53 are ball-jointed. The adjustment part is driven to drive the sample rod 3 to remain vertical.

[0025] In the above technical solution, the mounting base 1 serves as the foundation of the entire magnetic measurement system, providing stability and support. Its function is to fix other components, ensuring the structural integrity and operational stability of the system. The tilt adjustment device 2 is used to adjust the tilt angle of the sample rod 3, ensuring that the sample rod 3 is always in a vertical state. The tilt adjustment device 2 includes a base 21 and an adjustment part. The base 21 is used to install and connect the sample rod 3, and also provides a mounting foundation for the adjustment part. The adjustment part typically includes components such as a piezoelectric block, a pneumatic rod, a hydraulic rod, or an electric push rod, used to adjust the angle of the sample rod 3, ensuring that the sample rod 3 always remains vertical, preventing the sample rod 3 from vibrating or swaying, or intervening in a timely manner when vibration or swaying of the sample rod 3 is detected, controlling the amplitude of the vibration or swaying of the sample rod 3. The sample rod 3 is used to support and fix the sample, keeping it stable and enabling it to be delivered to the detection position for testing. One end of the sample rod 3 is connected to a ball joint 52, and a ball cup 53 is provided on the base 21. Through the ball joint 52 and the ball cup 53, the resistance experienced by the sample rod 3 is reduced, thereby improving the sensitivity of the sample rod 3 to the angle adjustment of the adjustment part. This ensures that the sample rod 3 can quickly respond to the angle adjustment of the adjustment part and avoids unnecessary vibrations to the sample other than those caused by the magnetic field.

[0026] The magnetic measurement system proposed in this invention reduces the resistance experienced by the sample rod 3 through the ball joint 52 and the ball cup 53 ball hinge cooperation. Combined with the adjustment part to adjust the angle of the sample rod 3, it ensures that the sample rod 3 can be adjusted accordingly based on the swing caused by factors such as the length of the sample rod 3, elastic modulus, and force conditions, with the ball joint 52 as the fulcrum, to compensate for any undesirable tilt and avoid unnecessary vibration of the sample, thereby ensuring the authenticity and accuracy of the test results.

[0027] In one embodiment of the present invention, the base 21 includes a hollow box with an opening facing downwards, the sample rod 3 is movably connected to the top of the box and extends vertically downwards, and the adjustment part is disposed on the inner wall of the box and is drivenly connected to the sample rod 3.

[0028] In the above technical solution, the hollow, downward-facing box provides a space to accommodate the sample rod 3. The bottom opening of the box connects the box to the interior of the mounting base 1, ensuring that the sample rod 3 can pass through the bottom opening and extend into the mounting base 1. Simultaneously, the box's sealing and stability help isolate external environmental interference, ensuring that the system's measurement accuracy is unaffected by external factors. The adjustment unit is located on the inner wall of the box and is driven by the sample rod 3. This significantly shortens the transmission path of the driving force, eliminating the need for a lengthy transmission link, thereby reducing energy loss and hysteresis during transmission. This ensures that the adjustment unit can adjust the angle of the sample rod in a timely manner according to its state, keeping the sample rod 3 always vertical, thus avoiding measurement errors caused by sample vibration due to non-magnetic factors.

[0029] In one embodiment of this utility model, the sample rod 3 is suspended on the tilt adjustment device 2 and extends into the mounting base 1, and a sample holder 4 is provided at the end of the sample rod 3 that extends into the mounting base 1.

[0030] In the above technical solution, the suspension design of the sample rod allows for flexible angle adjustment under the action of the tilt adjustment device. Simultaneously, suspending the sample rod 3 on the tilt adjustment device 2 ensures that the sample rod is primarily subjected to gravity, which naturally keeps it vertical. The sample holder 4 is located at the end of the sample rod and is used to directly contact and support the sample to be tested. Adjusting the position of the sample rod 3 ensures that the sample is at the optimal detection point during the detection process—the focal point of the magnetic field and the laser detection path.

[0031] In one embodiment of this utility model, a connecting rod 51 is provided between the sample rod 3 and the ball joint 52. The ball joint 52 is located at the first end of the connecting rod 51. The connecting rod 51 is engaged with the ball cup 53 through the ball joint 52. The second end of the connecting rod 51 is connected to the sample rod 3. The adjustment part is drivenly connected to the connecting rod 51.

[0032] In the above technical solution, the connecting rod 51 mainly serves as an intermediate bridge to realize the ball joint connection between the sample rod 3 and the box. Since the sample rod 3 is usually not equipped with a ball joint 52, and the sample rod 3 needs to be disassembled and replaced depending on the sample, in order to ensure the convenience of disassembly and replacement of the sample rod 3 and the reliability of the ball joint engagement, a connecting rod 51 is provided between the sample rod 3 and the ball joint 52. The first end of the connecting rod 51 is ball joint engaged with the ball cup 53 on the box, and the second end is detachably connected to the sample rod 3. When it is necessary to disassemble or assemble the sample rod 3, it is only necessary to disconnect the connection between the second end of the connecting rod 51 and the sample rod 3. The first end of the connecting rod 51 always maintains the ball joint connection, ensuring the reliability of the ball joint engagement between the sample rod 3 and the box.

[0033] In one embodiment of this utility model, the adjustment part includes a piezoelectric block 23, which is disposed on the inner wall of the chamber and drivenly connected to the sample rod 3.

[0034] In the above technical solution, a piezoelectric block is a material element that converts electrical energy into mechanical energy or vice versa. Its operation is based on the piezoelectric effect, meaning it deforms under an applied electric field and generates an electric charge under mechanical pressure. When the piezoelectric block 23 is designed to be driven and connected to the sample rod 3, the system can precisely control its deformation by applying voltage, thereby driving the sample rod 3 to adjust its angle. Placing the piezoelectric block 23 on the inner wall of the housing and in direct contact with the sample rod 3 facilitates the accurate transmission of the deformation force generated by the piezoelectric block to the sample rod 3, improving the reliability and response speed of the piezoelectric block 23 in adjusting the angle of the sample rod 3. When the sample rod 3 tilts or swings due to factors such as its length, elastic modulus, and stress, it compresses the piezoelectric block. The piezoelectric block generates an electrical signal from the pressure of the sample rod and sends it to the magnetic measurement system. The magnetic measurement system can determine the vibration or swing of the sample rod 3 by the presence and magnitude of the charge. At this time, the magnetic measurement system applies an electric field to the piezoelectric block through an external power source based on the electrical signal, causing the piezoelectric block to deform and correct the tilt or swing of the sample rod 3. This solves the problem of distorted detection results caused by unnecessary vibration of the sample.

[0035] In one embodiment of this invention, the piezoelectric block 23 can also be used to detect the vibration of the sample rod 3. Compared with the prior art method of setting the piezoelectric block at the root of the sample rod 3 for vibration detection, setting the piezoelectric block 23 at a certain distance from one end of the ball joint 52 of the sample rod 3 allows for a greater force from the sample rod 3 on the piezoelectric block 23, thereby improving the signal-to-noise ratio of the signal provided by the piezoelectric block 23, thus improving the detection accuracy of the vibration of the sample rod 3, and further improving the magnetic detection accuracy of the sample.

[0036] In one embodiment of this invention, a plurality of piezoelectric blocks 23 are evenly spaced along the circumference of the sample rod 3.

[0037] In the above technical solution, the uniformly spaced distribution of multiple piezoelectric blocks 23 along the circumference of the sample rod 3 can ensure that the sample rod is subjected to a balanced driving force in multiple directions, avoiding the sample rod tilting or irregular vibration that may be caused when a single piezoelectric block applies force, thereby ensuring that the verticality adjustment of the sample rod is smoother and more accurate.

[0038] In one embodiment of the present invention, the magnetic measurement system further includes a first moving component 6, which is disposed on the mounting base 1, and an tilt adjustment device 2 is disposed on the first moving component 6. The first moving component 6 can drive the tilt adjustment device 2 to move along at least one of the X-axis, Y-axis or Z-axis.

[0039] In the above technical solution, the first moving component 6 is typically composed of a series of precision linear motion mechanisms, such as a slide table driven by a linear motor or ball screw. It can move along the X, Y, or Z axes, providing additional degrees of freedom for the tilt adjustment device 2. By setting the first moving component 6, the magnetic measurement system can precisely adjust the position of the sample rod 3 in space, ensuring that the sample can accurately enter the detection position, thereby improving detection accuracy. Simultaneously, it can move the sample rod 3 to a safe position, facilitating sample placement and removal, and improving the ease of use of the magnetic measurement system.

[0040] In one embodiment of this utility model, the magnetic measurement system further includes a vibration meter 8, which is used to detect the vibration of the sample. When the magnetic measurement system detects the sample, the vibration meter 8 and the sample holder 4 are located on the same straight line, and the position of the sample holder 4 is the detection position.

[0041] In the above technical solution, the vibration meter 8 is responsible for real-time monitoring and recording of the sample's vibration under the influence of a magnetic field. The vibration meter can accurately measure the vibration amplitude and frequency of the sample under a specific magnetic field strength, providing an accurate basis for subsequent data analysis. The magnetic field generator is used to generate a gradient magnetic field, providing a controllable magnetic environment for the sample. The sample holder 4 is a platform for placing the sample. The sample supported by the sample holder 4 is located within the gradient magnetic field range generated by the gradient coil 74, ensuring that the sample vibrates under the influence of the magnetic field. Combined with the vibration meter 8's detection of sample vibration, the vibration data of the sample can be obtained.

[0042] In one embodiment of the present invention, a second moving component 81 is provided at the bottom of the vibration meter 8, and the second moving component 81 can drive the vibration meter 8 to move along at least one of the X-axis, Y-axis or Z-axis.

[0043] In the above technical solution, the second moving component 81 typically includes a precision linear guide rail and a drive motor, enabling movement along at least one of the X, Y, or Z axes. The second moving component 81 can adjust the position of the vibration meter relative to the sample as needed, ensuring that the vibration meter is always at the optimal detection angle and distance to obtain the highest signal quality and measurement accuracy. The second moving component can also be integrated with a control system to achieve automatic calibration and adjustment of the vibration meter's position, reducing manual intervention by operators and improving the efficiency and consistency of data acquisition.

[0044] In one embodiment of the present invention, the magnetic measurement system further includes a magnetic field generating device, which is disposed in the mounting base 1 and is capable of providing a magnetic field to the detection position.

[0045] In the above technical solution, the magnetic field generating device is typically composed of gradient coils, capable of generating a magnetic field of predetermined strength and gradient, causing the sample to vibrate according to its magnetic properties. This allows the magnetic information of the sample to be acquired through detection methods such as a laser vibrometer and piezoelectric block 23. The magnetic field generating device is housed within the mounting base 1 and tightly integrated with other key components of the magnetic measurement system, jointly constructing a highly controllable, precise, and stable measurement environment. Furthermore, the magnetic field generating device can also be equipped with an excitation coil 72 to form a bias magnetic field for changing the sample's magnetism. Combined with the gradient coil 74 and corresponding detection methods, the magnetic change process of the sample can be detected, allowing the acquisition of magnetic properties such as hysteresis loop, hysteresis, saturation magnetization, and coercivity.

[0046] In one embodiment of this utility model, the vibration meter 8, the magnetic field generating device, and the sample holder 4 are located on the same straight line. At this time, the sample holder 4 is located at the detection position. The precise alignment of the sample with the magnetic field ensures that the vibration signal intensity of the sample reaches the maximum, thereby improving the vibration meter's ability to capture effective signals.

[0047] In one embodiment of this utility model, a support seat 24 is provided between the adjustment part and the inner wall of the box.

[0048] In the above technical solution, the support base 24 is used to provide a stable mounting platform for the adjustment part, increase the contact area between the adjustment part and the inner wall of the box, help to distribute the load and reduce local stress. When the piezoelectric block is used as the adjustment part, the support base 24 can increase the contact area between the piezoelectric block and the inner wall of the box, disperse the influence of external stress from the box on the deformation of the piezoelectric block, and indirectly improve the accuracy of the piezoelectric block in fine-tuning the angle of the sample rod, thereby improving the accuracy and reliability of magnetic measurement.

[0049] In one embodiment of the present invention, the connecting part further includes a connecting ring 54, which is sleeved on the connecting rod 51, and the adjusting part is drivenly connected to the connecting ring 54.

[0050] In the above technical solution, the connecting ring 54 is sleeved on the connecting rod 51 to connect the sample rod 3 and the adjustment part, avoiding direct contact between the adjustment part and the sample rod 3, which helps to isolate the slight vibration that may be generated when the adjustment part moves. At the same time, as an intermediate connecting part, the connecting ring 54 can apply the force generated by the adjustment part to the sample rod more evenly, avoiding deformation or damage to the sample rod caused by local stress concentration, thereby ensuring the stability of the measurement and the safety of the sample.

[0051] In one embodiment of the present invention, the first moving component 6 includes a first slide 61, which is mounted on the mounting base 1. The tilt adjustment device 2 is mounted on the first slide 61, and the first slide 61 can drive the tilt adjustment device 2 to move along at least one of the X-axis or Y-axis.

[0052] In the above technical solution, the first slide 61 typically consists of a guide rail, a slider, and a drive mechanism. The guide rail of the slide is designed to provide a smooth, low-friction linear motion path, while the slider can support the tilt adjustment device 2. The main function of the first slide 61 is to realize the movement of the tilt adjustment device 2 and the sample carried by the tilt adjustment device 2 in the X-axis or Y-axis direction, ensuring that the sample can be accurately placed at the center of the magnetic field or other positions required for measurement.

[0053] In one embodiment of the present invention, a lifting part 63 is provided on the first slide 61, and a tilt adjustment device 2 is provided on the lifting part 63. The first moving component 6 also includes a driving part 62, which can drive the lifting part 63 to move the tilt adjustment device 2 along the Z-axis.

[0054] In the above technical solution, the lifting unit 63, as a vertical moving component, can precisely control the Z-axis height of the tilt adjustment device 2 through its linkage with the drive unit 62, thereby achieving the adjustment of the sample's vertical position. The drive unit 62 is the power source of the entire moving component, driving the lifting unit 63 to move along the Z-axis direction through a precise control circuit. The drive unit 62 typically employs a high-precision servo motor or a linear piezoelectric actuator, improving the accuracy and stability of the sample's vertical movement. The combination of the first slide 61 and the lifting unit 63, along with the control of the drive unit 62, enables the magnetic measurement system to precisely adjust the sample's position in three-dimensional space, including horizontal X-axis and Y-axis movement and vertical Z-axis fine-tuning, significantly improving the positioning accuracy during the measurement process.

[0055] In one embodiment of this utility model, a gradient coil 74 is provided near the detection position, and the gradient coil 74 can generate a gradient magnetic field at the detection position.

[0056] In the above technical solution, the main function of the gradient coil 74 is to generate a non-uniform magnetic field, namely a gradient magnetic field, the intensity of which varies with spatial position. The gradient magnetic field causes different parts of the sample to experience different magnetic forces, thereby generating a specific magnetic response. By creating an alternating gradient magnetic field with the gradient coil 74, the magnetic response of the sample changes, causing vibration, which in turn drives the sample rod 3 to vibrate. Thus, the magnetic properties of the sample can be analyzed by detecting the vibration of the sample or the sample rod 3.

[0057] In one embodiment of the present invention, the magnetic field generating device further includes a magnetic core. One end of the magnetic core facing the detection position is provided with a pole head 71, and the other end is provided with a magnetic yoke 73. The pole head 71 and the magnetic yoke 73 are connected by magnetic conduction through the magnetic core. An excitation coil 72 is provided on the magnetic circuit between the pole head 71 and the magnetic yoke 73, and the excitation coil 72 is sleeved on the magnetic core.

[0058] In the above technical solution, the magnetic core can be made of ferromagnetic material with high permeability, which can significantly enhance the magnetic field strength generated by the excitation coil and ensure that the magnetic field is conducted along a preset path, reducing magnetic field leakage and external interference. The pole head 71 faces the sample being measured directly. Its function is to gather and focus the magnetic field generated by the excitation coil 72, concentrating it at the detection position of the sample, thereby enhancing the magnetic field strength at the sample. The excitation coil 72 is used to generate a magnetic field after being energized. By changing the magnitude and direction of the current in the excitation coil, the strength and direction of the magnetic field can be controlled, thereby applying a bias magnetic field to the sample. The magnetic yoke 73 is made of high permeability material and is usually designed as a U-shaped or ring structure to guide and close the magnetic field circulation, thereby improving the utilization rate of the magnetic field and reducing magnetic field leakage. Through the cooperation of the magnetic core, pole head 71, excitation coil 72 and magnetic yoke 73, a highly controllable, moderately strong and uniformly distributed magnetic field environment is created within the mounting base 1, thereby realizing the accurate measurement of the magnetic properties of the sample by the magnetic measurement system.

[0059] In one embodiment of this invention, two magnetic field generating devices are respectively arranged on both sides of the detection position.

[0060] In the above technical solution, placing magnetic field generators on both sides of the detection position enables bidirectional magnetic field control of the sample, allowing researchers to gain a more comprehensive understanding of complex magnetic parameters such as magnetic anisotropy and hysteresis loop characteristics. Furthermore, the combined use of two magnetic field generators creates a more uniform and intense magnetic field environment at the sample detection position through magnetic field superposition, thereby improving measurement sensitivity and accuracy. Additionally, a single magnetic field generator may produce undesirable magnetic field distortion at the edges of the detection position, known as the edge effect. By arranging magnetic field generators on both sides, this edge effect can be effectively counteracted, ensuring that the entire sample area is subjected to a consistent magnetic field, thus improving the reliability of the measurement results.

[0061] In one embodiment of this utility model, both the mounting base 1 and the bottom of the vibration meter 8 are provided with vibration isolation parts 9.

[0062] In the above technical solution, the vibration isolation unit 9 typically includes damping materials, elastic elements, or an active vibration isolation system, which can effectively absorb and attenuate vibrations from the ground, air fluctuations, or other external sources. By reducing unnecessary vibration interference, the vibration isolation unit 9 can significantly improve the accuracy of the vibration meter 8 when reading sample vibration signals, thereby enhancing system stability, improving measurement accuracy, and promoting the reliability of automated testing.

[0063] In one embodiment of this utility model, a vibration isolation part 9 is provided at the bottom of the second moving component 81.

[0064] In the above technical solution, the laser vibrometer 8 is extremely sensitive to minute vibrations of the sample. Even minute external vibrations can be amplified, leading to errors in the measurement data. By setting a vibration isolation part 9 containing damping material, elastic elements, or an active vibration isolation system at the bottom of the second moving component 81, the interference of external vibrations on the operation of the laser vibrometer 8 is significantly reduced, ensuring the stability and accuracy of the measurement.

[0065] In one embodiment of this utility model, four piezoelectric blocks 23 are arranged at intervals along the circumference of the sample rod 3, and the included angle between two adjacent piezoelectric blocks 23 is 90°.

[0066] In the above technical solution, by controlling the four piezoelectric blocks 23 connected to the sample rod 3, the angle of the sample rod in three-dimensional space can be adjusted. The 90° included angle design between adjacent piezoelectric blocks means that the posture of the sample rod can be precisely controlled from four mutually perpendicular directions, effectively reducing the unbalanced torque inside the system, thereby achieving high-precision tilt adjustment.

[0067] In one embodiment of this utility model, the connecting shaft portion 55 is disposed at the end of the connecting rod 51 away from the ball joint 52, and the connecting rod 51 is detachably connected to the sample rod 3 through the connecting shaft portion 55.

[0068] In the above technical solution, the coupling part 55 typically includes devices such as a sleeve, flange, or coupling. By using the coupling part 55 to connect the sample rod 3 to the connecting rod 51, the tilt adjustment device 2 can be adapted to connecting rods 51 of different specifications, thus improving the compatibility of the tilt adjustment device 2. The design of using the coupling part 55 to detachably connect the coupling part 55 to the sample rod 3 simplifies the disassembly and assembly process of the sample rod 3 and reduces maintenance difficulty.

[0069] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: The mounting base 1, as the base of the entire magnetic measurement system, provides stability and support. Its function is to fix other components and ensure the structural integrity and operational stability of the system. The tilt adjustment device 2 is used to adjust the tilt angle of the sample rod 3 to ensure that the sample rod 3 is always in a vertical state. The tilt adjustment device 2 includes a base 21 and an adjustment part. The base 21 is used to install and connect the sample rod 3, and also provides a mounting foundation for the adjustment part. The adjustment part usually includes components such as a piezoelectric block, a pneumatic rod, a hydraulic rod, or an electric push rod, which are used to adjust the angle of the sample rod 3 to ensure that the sample rod 3 always remains vertical, avoid vibration or swaying of the sample rod 3, or intervene in time to adjust and control the amplitude of vibration or swaying of the sample rod 3 when vibration or swaying of the sample rod 3 is detected. The sample rod 3 is used to support and fix the sample, keeping it stable and enabling it to be delivered to the detection position for testing. One end of the sample rod 3 is connected to a ball joint 52, and a ball cup 53 is provided on the base 21. Through the ball joint 52 and the ball cup 53, the resistance experienced by the sample rod 3 is reduced, thereby improving the sensitivity of the sample rod 3 to the angle adjustment of the adjustment part. This ensures that the sample rod 3 can quickly respond to the angle adjustment of the adjustment part and avoids unnecessary vibrations to the sample other than those caused by the magnetic field.

[0070] The magnetic measurement system proposed in this invention reduces the resistance experienced by the sample rod 3 through the ball joint 52 and the ball cup 53 ball hinge cooperation. Combined with the adjustment part to adjust the angle of the sample rod 3, it ensures that the sample rod 3 can be adjusted accordingly based on the swing caused by factors such as the length of the sample rod 3, elastic modulus, and force conditions, with the ball joint 52 as the fulcrum, to compensate for any undesirable tilt and avoid unnecessary vibration of the sample, thereby ensuring the authenticity and accuracy of the test results.

[0071] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0072] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0073] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic measurement system, characterized by, The device includes a mounting base (1), an angle adjustment device (2), and a sample rod (3). The angle adjustment device (2) is mounted on the mounting base (1). The angle adjustment device (2) includes a base (21) and an adjustment part. One end of the sample rod (3) is connected to a ball joint (52). A ball cup (53) is provided on the base (21). The ball joint (52) and the ball cup (53) are ball-jointed. The adjustment part is driven to the sample rod (3). The adjustment part can drive the sample rod (3) to remain vertical.

2. The magnetic measurement system of claim 1, wherein, The base (21) includes a hollow box with an opening facing downwards. The sample rod (3) is movably connected to the top of the box and extends vertically downwards. The adjustment part is disposed on the inner wall of the box and is drivenly connected to the sample rod (3).

3. The magnetic measurement system of claim 2, wherein, The sample rod (3) is suspended on the tilt adjustment device (2) and extends into the mounting base (1). A sample holder (4) is provided at one end of the sample rod (3) that extends into the mounting base (1).

4. The magnetic measurement system of claim 2, wherein, A connecting rod (51) is provided between the sample rod (3) and the ball joint (52). The ball joint (52) is located at the first end of the connecting rod (51). The connecting rod (51) is connected to the ball joint (53) through the ball joint (52) via a ball joint. The second end of the connecting rod (51) is connected to the sample rod (3). The adjusting part is driven to connect with the connecting rod (51).

5. The magnetic measurement system of claim 2, wherein, The adjustment unit includes a piezoelectric block (23), which is disposed on the inner wall of the chamber and drivenly connected to the sample rod (3).

6. The magnetic measurement system of claim 5, wherein, Multiple piezoelectric blocks (23) are evenly spaced along the circumference of the sample rod (3).

7. The magnetic measurement system of claim 1, wherein, The magnetic measurement system further includes a first moving component (6), which is disposed on the mounting base (1). The tilt adjustment device (2) is disposed on the first moving component (6). The first moving component (6) can drive the tilt adjustment device (2) to move along at least one of the X-axis, Y-axis or Z-axis.

8. The magnetic measurement system of claim 3, wherein, The magnetic measurement system also includes a vibration meter (8), which is used to detect the vibration of the sample.

9. The magnetic measurement system of claim 8, wherein, The vibration meter (8) is provided with a second moving component (81) at the bottom. The second moving component (81) can drive the vibration meter (8) to move along at least one of the X-axis, Y-axis or Z-axis.

10. The magnetic measurement system of claim 1, wherein, The magnetic measurement system also includes a magnetic field generating device, which is disposed in the mounting base (1) and is capable of providing a magnetic field to the detection position.

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