Adjustable TMR and electromagnetic measurement sensor bracket, multi-array control method

Abstract

The present invention relates to the technical field of measuring magnetic variables, and specifically to a bracket and multi-array control method for adjustable TMR and electromagnetic measurement sensors. The bracket body of the present invention includes a number of fan-shaped bottom plates made of SMC composite materials, and adjacent fan-shaped bottom plates are spliced ​​together to form a complete annular structure; the adjustment mechanism includes a ball screw and a motor, and the ball screw is installed on the track of the bracket body; the electromagnetic measurement sensor includes a carrier and an electromagnetic measurement unit installed on the carrier; the bracket body and the electromagnetic measurement sensor adopt an upper and lower layered layout, and the probe electromagnetic measurement sensor is independently adjusted by the adjustment mechanism, and arranged in an array along the track, thereby forming an adjustable array sensor together. By improving the adjustable bracket structure, the electromagnetic measurement sensor can be flexibly arranged and independently adjusted in an array on the bracket, so as to more accurately detect magnetic field signals at different positions and directions, and improve the efficiency and accuracy of magnetic field detection.

Description

Technical Field

[0001] The invention relates to the technical field of measuring magnetic variables, and in particular to a bracket and a multi-array control method for an adjustable TMR and electromagnetic measurement sensor. Background Art

[0002] In the field of magnetic field measurement and monitoring, accurately capturing the magnetic field distribution and its changes is crucial for scientific research, industrial detection, and safety monitoring. Traditional magnetic field measurement equipment is difficult to adapt to complex magnetic field environments due to the fixed layout of sensors, and the detection efficiency and accuracy are limited. To solve this problem, technicians have conducted many explorations, such as the non-contact high-precision annular TMR array current sensor disclosed in Chinese patent CN118425594A, which forms a loop around the current-carrying conductor through multiple sensor bodies, and detects the current based on the calibration relationship between the output voltage and the current. However, this solution still has shortcomings: first, although the loop sensor can fine-tune the distance, it is difficult to meet the needs of high-precision and large-range adjustment; second, the adjustment process may affect the operation of the TMR element and increase the measurement error; third, the sensor layout and connection method are complicated. The above problems limit its wide application in magnetic field measurement, and further optimization and innovation are still needed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a bracket and a multi-array control method for an adjustable TMR and electromagnetic measurement sensor.

[0004] The technical solution adopted by the present invention is as follows: A bracket for an adjustable TMR and electromagnetic measurement sensor comprises a bracket body arranged in a ring shape, on which adjustment mechanisms are arranged at intervals, and an electromagnetic measurement sensor adjustable on the adjustment mechanism, wherein: The bracket body includes a plurality of fan-shaped bottom plates made of SMC composite materials, and a track matching the adjustment mechanism is arranged along the center line of the fan-shaped bottom plates; adjacent fan-shaped bottom plates are spliced ​​together to form a complete annular structure, and a wiring terminal for connecting a power supply is arranged at the outer edge of the fan-shaped bottom plate, and a circular through hole is arranged at the outer edge of the fan-shaped bottom plate; The adjusting mechanism comprises a ball screw, which is installed on the track of the bracket body, one end of which is connected to the circular through hole and the other end is connected to the end of the track; a bracket is arranged on the ball screw; The electromagnetic measurement sensor comprises a carrier sheet and an electromagnetic measurement unit mounted on the carrier sheet; the carrier sheet is fan-shaped and is arranged one-to-one with the ball screw below; In addition, the bracket body and the electromagnetic measurement sensor are arranged in upper and lower layers, and the probe electromagnetic measurement sensor is independently adjusted through an adjustment mechanism and arranged in an array along the track, thereby forming an adjustable array sensor.

[0005] This technical solution improves the adjustable bracket structure to achieve flexible arrangement and independent adjustment of electromagnetic measurement sensors in an array on the bracket, thereby more accurately detecting magnetic field signals at different positions and directions and improving the efficiency and accuracy of magnetic field detection. Specifically, the bracket body adopts a fan-shaped base plate made of SMC composite material, which has excellent mechanical properties, electrical properties and thermal stability, and is suitable for making components that need to withstand certain loads and require insulation and corrosion resistance; the fan-shaped base plate is not only easy to process and assemble, but also forms a complete annular structure by splicing each other, which is not only stable but also able to evenly distribute the load; the setting of the track is to match the adjustment mechanism to ensure that the adjustment mechanism can move smoothly along the predetermined path; the setting of the circular through hole and the terminal block facilitates the connection of power supply and cables; the adjustment mechanism consists of a ball screw and a motor. The ball screw converts the rotational motion of the motor into linear motion through the rolling contact between its spiral groove and the ball, and can withstand large loads and maintain high precision at the same time; on the bracket body, the ball screw is installed along the track, one end is connected to the circular through hole, and the other end is connected to the motor at the end of the track, and the drive of the motor enables the ball screw to move smoothly along the track The electromagnetic measurement sensor is a magnetic sensor based on the principle of quantum mechanics, which has the characteristics of high sensitivity, high resolution and fast response. The electromagnetic measurement unit is installed on the carrier, which is fan-shaped and corresponds to the ball screw below. When the external magnetic field acts on the electromagnetic measurement unit, it causes the change of the tunneling current in the electromagnetic measurement unit. The change of the tunneling current is proportional to the magnetic field strength. By measuring this current change, the magnetic field strength can be accurately measured. The bracket body and the electromagnetic measurement sensor adopt an upper and lower layered layout, which is conducive to reducing mutual interference and improving the accuracy of measurement. Through the adjustment of the adjustment mechanism, the electromagnetic measurement sensor is arranged in an array along the track to form an adjustable array sensor, which not only has high flexibility and adjustability, but also can realize the simultaneous measurement of the magnetic field strength of multiple points, greatly improving the efficiency and accuracy of the measurement. In actual applications, the controller will send instructions to the motor as needed to drive the ball screw to move, thereby adjusting the position of the electromagnetic measurement sensor. The cables of the electromagnetic measurement sensor are integrated through the hollow structure of the ball screw, making the entire structure more compact and reliable, and able to adapt to the arrangement requirements of various geometric arrays, thereby more comprehensively covering the detection area and improving the performance of magnetic field detection.

[0006] In addition, the bracket for adjustable TMR and electromagnetic measurement sensor according to the present invention also has the following additional technical features: According to an embodiment of the present invention, each of the fan-shaped bottom plates is provided with at least one adjustment mechanism and a corresponding electromagnetic measurement sensor, and the two are arranged in a one-to-one correspondence.

[0007] This technical solution uses an independent adjustment mechanism to accurately control the position of each electromagnetic measurement sensor; because the distribution and strength of the magnetic field are often closely related to the spatial position, by adjusting the position of the sensor, accurate measurement of the magnetic field in different areas can be achieved. In addition, adjustment mechanisms and electromagnetic measurement sensors are respectively arranged on multiple fan-shaped base plates to form a backup structure to improve the reliability of the system. Even if a sensor or adjustment mechanism fails, other sensors continue to work to ensure that the overall performance is not affected. The modular setting of the fan-shaped base plate makes the bracket body easy to expand. If it is necessary to increase the detection area or improve the detection accuracy, simply increase the number of fan-shaped base plates or improve the performance of the adjustment mechanism and sensor.

[0008] According to an embodiment of the present invention, the track is a path formed by positioning holes matching the ball screw, and the positioning holes are arranged one by one and connected to each other to form a continuous path.

[0009] In the present technical solution, the continuous path formed by the locating holes provides a smooth motion trajectory for the ball screw, reducing impact and vibration during movement; the locating holes provide precise guidance for the ball screw, enabling it to maintain a straight line or a specific curved trajectory, thereby achieving high-precision position control.

[0010] According to an embodiment of the present invention, the adjustment mechanism further includes fasteners, which are respectively located at both ends of the track and are used to fix the ball screw.

[0011] This technical solution forms effective support and restraint by placing fasteners at both ends of the track to prevent the ball screw from deflecting or loosening during movement; the fasteners not only fix the ball screw, but also reduce the vibration and noise generated during movement. When the ball screw needs to be replaced or maintained, the ball screw can be easily removed by loosening the fasteners without complicated operation procedures.

[0012] According to one embodiment of the present invention, the model of the ball screw is a miniature SFK ball screw, and the minimum transmission accuracy is as precise as 0.001 mm.

[0013] In this technical solution, the miniature SFK ball screw can achieve micron-level or even submicron-level transmission accuracy through its precise manufacturing process and optimized structure, has a low friction coefficient and high transmission efficiency, and meets the needs of high-precision applications, such as precise control of the carrier.

[0014] According to an embodiment of the present invention, the ball screw is a hollow tubular structure, and the cable of the electromagnetic measurement unit is inserted into the interior thereof through a fastener and integrated with the cable of the motor into one.

[0015] This technical solution uses a ball screw with a hollow tubular structure, and the cables of the electromagnetic measuring unit are directly inserted into the interior thereof, thereby avoiding complex external wiring, which not only saves space but also simplifies the wiring structure of the system, making the entire bracket body more compact and tidy; the hollow tubular structure reduces interference and wear between cables. When it is necessary to add additional electromagnetic measuring units or motors, it is only necessary to insert the new cables into the ball screw and connect them to the existing cable bundle.

[0016] According to one embodiment of the present invention, the bracket body also includes a controller, and the motor and the electromagnetic measuring unit are both equipped with a built-in communication module. The controller controls the motor to drive the ball screw to rotate through the communication module, thereby driving the electromagnetic measuring units to be arranged in an array; the communication module feeds back the detection signal of the electromagnetic measuring unit, the controller adjusts the speed of the motor, and independently adjusts each electromagnetic measuring unit to achieve the best detection effect.

[0017] This technical solution achieves direct communication and collaborative work between components by integrating the communication module into each component, without the need for additional communication lines or interfaces, thereby simplifying the structure; the communication module can provide real-time feedback on the detection signals of the electromagnetic measurement unit, and the controller adjusts the speed of the motor according to these signals and independently adjusts each electromagnetic measurement unit to achieve the best detection effect.

[0018] According to one embodiment of the present invention, the electromagnetic measurement unit includes an electromagnetic measurement chip module, an A / D conversion module, a signal amplification and acquisition module and a data processing module which are connected in sequence. The electromagnetic measurement unit converts the detected magnetic field signal into a digital signal through the A / D conversion module, the signal amplification and acquisition module amplifies and acquires the digital signal, and the data processing module filters, calibrates, and converts the data format of the signal acquired, and transmits it to the controller through the communication module.

[0019] In this technical solution, the electromagnetic measurement chip module serves as a magnetic field sensor with the characteristics of high sensitivity, high resolution and low noise. It can effectively detect weak magnetic field signals and convert them into analog electrical signals. The electromagnetic measurement unit has broad application prospects in the fields of magnetic field measurement, magnetic encoders, magnetic storage, etc.

[0020] According to one embodiment of the present invention, the electromagnetic measurement sensors are arranged along the track in a geometric array, which includes a circular array, a square array, and a triangular array.

[0021] In this technical solution, different geometric array methods have different advantages for measuring spatial magnetic field distribution. For example, a circular array is more suitable for measuring radial magnetic field distribution, while a square array and a triangular array are better at capturing magnetic field changes in a specific direction or area. By selecting a suitable geometric array method, accurate measurement of spatial magnetic field distribution can be achieved.

[0022] To achieve the above objectives, the present invention also provides a multi-array control method for adjustable TMR and electromagnetic measurement sensors.

[0023] A multi-array control method for adjustable TMR and electromagnetic measurement sensors comprises the following steps: S1. Preparation of the bracket body: The fan-shaped bottom plates made of SMC composite materials are spliced ​​into a complete ring structure, and each fan-shaped bottom plate is provided with at least one adjustment mechanism and a corresponding electromagnetic measurement sensor; the track is preset in the bracket body, consisting of continuous positioning holes, and matched with a ball screw; S2. Installation of electromagnetic measurement sensor: The electromagnetic measurement sensor is installed on the bracket through the fan-shaped bearing sheet, and the ball screw is fixed to both ends of the track through fasteners and connected to the motor; the cable of the electromagnetic measurement unit is inserted into the hollow structure of the ball screw and integrated with the motor cable; S3, array arrangement and adjustment: The controller connects the motor and the electromagnetic measurement unit through the communication module, sends instructions to drive the ball screw to rotate, drives the bracket and the electromagnetic measurement sensor to move along the track, and realizes the array arrangement; S4, signal detection and processing: When the electromagnetic measurement sensor works, the electromagnetic measurement chip module detects the magnetic field signal, which is converted into a digital signal by the A / D conversion module and then processed by the amplification and acquisition module. After filtering, calibration and format conversion by the data processing module, the signal is transmitted to the controller through the communication module. The controller adjusts the motor speed according to the signal and independently adjusts each electromagnetic measurement sensor to optimize the array detection effect.

[0024] This technical solution realizes the array control of adjustable TMR and electromagnetic measurement sensors. Specifically, a fan-shaped bottom plate made of SMC composite material is spliced ​​into a complete annular structure to provide a stable bracket body for the sensor array, and an adjustment mechanism and a corresponding electromagnetic measurement sensor are set, and a track is preset to match the ball screw; the MR sensor is installed on the bracket, and the sensor can move smoothly along the track through the close cooperation between the ball screw and the track, and the connection between the motor and the ball screw; the electromagnetic measurement unit cable penetrates the hollow structure of the ball screw and is integrated with the motor cable to simplify the wiring and improve the neatness of the system; the controller establishes a connection with the motor and the electromagnetic measurement unit through the communication module, sends instructions to drive the ball screw to rotate, thereby driving the bracket and the electromagnetic measurement sensor to move along the track, realizing the flexible arrangement and adjustment of the sensor array; the electromagnetic measurement sensor starts to work, detects the magnetic field signal through the electromagnetic measurement chip module, and finally transmits the optimized signal to the controller through a series of processing by the A / D conversion module, the amplification acquisition module and the data processing module; the controller adjusts the speed of the motor according to the received signal, and independently adjusts each electromagnetic measurement sensor to optimize the detection effect of the array.

[0025] Compared with the prior art, the present invention has the following beneficial effects: (1) Through the adjustable bracket structure, the electromagnetic measurement sensors can be flexibly arranged in an array and independently adjusted on the bracket, which can more accurately detect magnetic field signals at different positions and directions and improve the efficiency of magnetic field detection; (2) The bracket body adopts a modular design, and the fan-shaped bottom plate is easy to process, assemble and expand, which can increase the detection area or improve the detection accuracy as needed; (3) The controller can adjust the motor speed in real time according to the detection signal of the electromagnetic measurement unit and independently adjust each electromagnetic measurement sensor to achieve the best detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an assembly drawing of the present invention.

[0027] Figure 2 It is a perspective view of the present invention.

[0028] Figure 3 It is an exploded view of the present invention.

[0029] Figure 4 It is one of the state diagrams of the present invention.

[0030] Figure 5 This is the second state diagram of the present invention.

[0031] Figure 6 It is the third state diagram of the present invention.

[0032] Figure 7 It is the fourth state diagram of the present invention.

[0033] In the figure: 1. bracket body; 2. fan-shaped bottom plate; 21. track; 22. positioning hole; 23. terminal; 3. adjustment mechanism; 31. ball screw; 32. motor; 33. bracket; 34. fastener; 4. electromagnetic measurement sensor; 41. carrier plate; 42. electromagnetic measurement unit; 5. circular array; 6. square array; 7. triangular array. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1 like Figures 1 to 3As shown, this embodiment provides a bracket for adjustable TMR and electromagnetic measurement sensors, including a bracket body 1 arranged in a ring shape, on which adjustment mechanisms 3 are spaced apart, and electromagnetic measurement sensors 4 adjustable on the adjustment mechanisms 3, wherein: The support body 1 includes a plurality of fan-shaped bottom plates 2 made of SMC composite material, and a track 21 matching the adjustment mechanism 3 is arranged along the center line of the fan-shaped bottom plates 2; adjacent fan-shaped bottom plates 2 are spliced ​​together to form a complete annular structure, and a wiring terminal 23 connected to a power supply is arranged at the outer edge of the fan-shaped bottom plate 2, and a circular through hole is arranged at the outer edge of the fan-shaped bottom plate 2; The adjusting mechanism 3 includes a ball screw 31, which is installed on the track 21 of the bracket body 1, one end of which is connected to the circular through hole, and the other end is connected to the end of the track 21; a bracket 33 is provided on the ball screw 31; The electromagnetic measurement sensor 4 includes a carrier sheet 41 and an electromagnetic measurement unit 42 mounted on the carrier sheet 41; the carrier sheet 41 is fan-shaped and is arranged one-to-one with the ball screw 31 below; In addition, the bracket body 1 and the electromagnetic measurement sensor 4 are arranged in upper and lower layers, and the probe electromagnetic measurement sensor 4 is independently adjusted by the adjustment mechanism 3 and arranged in an array along the track 21, thereby forming an adjustable array sensor.

[0036] like Figures 1 to 3As shown, the technical solution improves the adjustable bracket structure to achieve flexible arrangement and independent adjustment of the electromagnetic measurement sensor 4 in an array on the bracket, thereby more accurately detecting magnetic field signals at different positions and directions and improving the efficiency and accuracy of magnetic field detection. Specifically, the bracket body 1 adopts a fan-shaped base plate 2 made of SMC composite material, which has excellent mechanical properties, electrical properties and thermal stability, and is suitable for making components that need to withstand certain loads and require insulation and corrosion resistance; the fan-shaped base plate 2 is not only easy to process and assemble, but also forms a complete annular structure by splicing each other, which is not only stable but also able to evenly distribute the load; the setting of the track 21 is to match the adjustment mechanism 3 to ensure that the adjustment mechanism 3 can move smoothly along the predetermined path; the setting of the circular through hole and the terminal 23 facilitates the connection of power supply and cables; the adjustment mechanism 3 is composed of a ball screw 31 and a motor 32. The ball screw 31 converts the rotational motion of the motor 32 into linear motion through the rolling contact between its spiral groove and the ball, and can withstand a large load and maintain a high precision; on the bracket body 1, the ball screw 31 is installed along the track 21, one end is connected to the circular through hole, and the other end is connected to the motor 32 at the end of the track 21, and the drive of the motor 32 enables the ball screw 31 to move along the track The track 21 moves smoothly, thereby driving the bracket 33 and the electromagnetic measurement sensor 4 to adjust the position; the electromagnetic measurement sensor 4 is a magnetic sensor based on the principle of quantum mechanics, which has the characteristics of high sensitivity, high resolution and fast response; the electromagnetic measurement unit 42 is installed on the carrier 41, and the carrier 41 is fan-shaped and corresponds to the ball screw 31 below; when the external magnetic field acts on the electromagnetic measurement unit 42, it causes the change of the tunneling current in the electromagnetic measurement unit 42, and the change of the tunneling current is proportional to the magnetic field strength. By measuring this current change, the magnetic field strength is accurately measured; the bracket body 1 and the electromagnetic measurement sensor 4 adopt an upper and lower layered layout, which is conducive to reducing mutual interference and improving the accuracy of measurement; through the adjustment of the adjustment mechanism 3, the electromagnetic measurement sensor 4 is arranged in an array along the track 21 to form an adjustable array sensor, which not only has high flexibility and adjustability, but also can realize the simultaneous measurement of the magnetic field strength of multiple points, greatly improving the efficiency and accuracy of the measurement. In actual application, the controller will send instructions to the motor 32 as needed to drive the ball screw 31 to move, thereby adjusting the position of the electromagnetic measurement sensor 4. The cables of the electromagnetic measurement sensor 4 are integrated through the hollow structure of the ball screw 31, making the entire structure more compact and reliable, and able to adapt to the arrangement requirements of various geometric arrays, thereby more comprehensively covering the detection area and improving the performance of magnetic field detection.

[0037] In addition, the bracket for adjustable TMR and electromagnetic measurement sensor according to the present invention also has the following additional technical features: According to an embodiment of the present invention, each of the sector-shaped bottom plates 2 is provided with at least one adjustment mechanism 3 and a corresponding electromagnetic measurement sensor 4, and the two are provided in a one-to-one correspondence.

[0038] This technical solution uses an independent adjustment mechanism 3 to accurately control the position of each electromagnetic measurement sensor 4; because the distribution and intensity of the magnetic field are often closely related to the spatial position, by adjusting the position of the sensor, accurate measurement of the magnetic field in different areas can be achieved. In addition, adjustment mechanisms 3 and electromagnetic measurement sensors 4 are respectively arranged on multiple sector-shaped base plates 2 to form a backup structure to improve the reliability of the system. Even if a sensor or adjustment mechanism 3 fails, other sensors continue to work to ensure that the overall performance is not affected. The modular setting of the sector-shaped base plate 2 makes the bracket body 1 easy to expand. If it is necessary to increase the detection area or improve the detection accuracy, simply increase the number of sector-shaped base plates 2 or improve the performance of the adjustment mechanism 3 and the sensor.

[0039] According to an embodiment of the present invention, the track 21 is a path formed by positioning holes 22 matching the ball screw 31 , and the positioning holes 22 are arranged one by one and connected to each other to form a continuous path.

[0040] In the present technical solution, the continuous path formed by the positioning holes 22 provides a smooth motion trajectory for the ball screw 31, reducing impact and vibration during movement; the positioning holes 22 provide precise guidance for the ball screw 31, enabling it to maintain a straight line or a specific curved trajectory, thereby achieving high-precision position control.

[0041] According to an embodiment of the present invention, the adjustment mechanism 3 further includes fasteners 34, which are respectively located at both ends of the track 21 and are used to fix the ball screw.

[0042] The technical solution forms effective support and restraint by placing fasteners 34 at both ends of the track 21, thereby preventing the ball screw 31 from deflecting or loosening during movement; the fasteners 34 not only fix the ball screw 31, but also reduce the vibration and noise generated during movement. When the ball screw 31 needs to be replaced or maintained, the ball screw 31 can be easily removed by simply loosening the fasteners 34 without complicated operation procedures.

[0043] According to one embodiment of the present invention, the model of the ball screw is a miniature SFK ball screw, and the minimum transmission accuracy is as precise as 0.001 mm.

[0044] In this technical solution, the miniature SFK ball screw can achieve micron-level or even submicron-level transmission accuracy through its precise manufacturing process and optimized structure, has a lower friction coefficient and higher transmission efficiency, and meets the needs of high-precision applications, such as precise control of the carrier plate 41.

[0045] According to an embodiment of the present invention, the ball screw 31 is a hollow tubular structure, and the cable of the electromagnetic measurement unit 42 passes through the inside thereof through the fastener 34 and is integrated with the cable of the motor 32 into one.

[0046] The technical solution uses a ball screw 31 with a hollow tubular structure, and the cables of the electromagnetic measuring unit 42 are directly inserted into the interior thereof, thereby avoiding complex external wiring, which not only saves space but also simplifies the wiring structure of the system, making the entire bracket body 1 more compact and tidy; the hollow tubular structure reduces interference and wear between cables. When it is necessary to add an additional electromagnetic measuring unit 42 or motor 32, it is only necessary to insert the new cable into the ball screw 31 and connect it to the existing cable bundle.

[0047] According to one embodiment of the present invention, the bracket body 1 also includes a controller, and the motor 32 and the electromagnetic measuring unit 42 are both equipped with a built-in communication module. The controller controls the motor 32 through the communication module to drive the ball screw 31 to rotate, thereby driving the electromagnetic measuring unit 42 to be arranged in an array; the communication module feeds back the detection signal of the electromagnetic measuring unit 42, the controller adjusts the rotation speed of the motor 32, and independently adjusts each electromagnetic measuring unit 42 to achieve the best detection effect.

[0048] This technical solution realizes direct communication and collaborative work between components by integrating the communication module into each component, without the need for additional communication lines or interfaces, thereby simplifying the structure; the communication module can provide real-time feedback of the detection signal of the electromagnetic measurement unit 42, and the controller adjusts the speed of the motor 32 according to these signals, and independently adjusts each electromagnetic measurement unit 42 to achieve the best detection effect.

[0049] According to one embodiment of the present invention, the electromagnetic measurement unit 42 includes an electromagnetic measurement chip module, an A / D conversion module, a signal amplification and acquisition module and a data processing module connected in sequence. The electromagnetic measurement unit 42 converts the detected magnetic field signal into a digital signal through the A / D conversion module, the signal amplification and acquisition module amplifies and acquires the digital signal, and the data processing module filters, calibrates, and converts the data format of the signal collected, and transmits it to the controller through the communication module.

[0050] In this technical solution, the electromagnetic measurement chip module serves as a magnetic field sensor, which has the characteristics of high sensitivity, high resolution and low noise. It can effectively detect weak magnetic field signals and convert them into analog electrical signals. The electromagnetic measurement unit 42 has broad application prospects in the fields of magnetic field measurement, magnetic encoders, magnetic storage, etc.

[0051] Example 2 Based on Example 1, this example provides a circular array 5, a square array 6, and a triangular array 7 in array form.

[0052] In this technical solution, different geometric array methods have different advantages for measuring spatial magnetic field distribution, such as: like Figure 4 and Figure 5 The circular array 5 is more suitable for measuring radial magnetic field distribution, such as Figure 6 and Figure 7 The square array 6 and the triangular array 7 are better at capturing the magnetic field changes in a specific direction or area; by selecting a suitable geometric array method, accurate measurement of the spatial magnetic field distribution can be achieved.

[0053] Example 3 Based on Example 1, Figures 1 to 3 As shown, the present embodiment provides a multi-array control method for adjustable TMR and electromagnetic measurement sensors, comprising the following steps: S1. Preparation of the bracket body 1: The fan-shaped bottom plates 2 made of SMC composite materials are spliced ​​into a complete annular structure, and each fan-shaped bottom plate 2 is provided with at least one adjustment mechanism 3 and a corresponding electromagnetic measurement sensor 4; the track 21 is preset on the bracket body 1, consisting of continuous positioning holes 22, and matched with a ball screw 31; S2. Installation of electromagnetic measurement sensor 4: The electromagnetic measurement sensor 4 is installed on the bracket 33 through the fan-shaped bearing sheet 41. The ball screw 31 is fixed to both ends of the track 21 through the fasteners 34 and connected to the motor 32. The cable of the electromagnetic measurement unit 42 is inserted into the hollow structure of the ball screw 31 and integrated with the cable of the motor 32. S3, array arrangement and adjustment: The controller connects the motor 32 and the electromagnetic measurement unit 42 through the communication module, sends instructions to drive the ball screw 31 to rotate, and drives the bracket 33 and the electromagnetic measurement sensor 4 to move along the track 21 to achieve array arrangement; S4, signal detection and processing: When the electromagnetic measurement sensor 4 is working, the electromagnetic measurement chip module detects the magnetic field signal, which is converted into a digital signal by the A / D conversion module, and then processed by the amplification and acquisition module. After filtering, calibration and format conversion by the data processing module, the signal is transmitted to the controller through the communication module. The controller adjusts the speed of the motor 32 according to the signal, independently adjusts each electromagnetic measurement sensor 4, and optimizes the array detection effect.

[0054] This technical solution realizes array control of adjustable TMR and electromagnetic measurement sensors. Specifically, the fan-shaped base plate 2 made of SMC composite material is spliced ​​into a complete annular structure to provide a stable bracket body 1 for the sensor array, and an adjustment mechanism 3 and a corresponding electromagnetic measurement sensor 4 are set, and a track 21 is preset to match the ball screw 31; the MR sensor is installed on the bracket 33 of the ball screw 31, and the sensor can move smoothly along the track 21 through the close fit between the ball screw 31 and the track 21, and the connection between the motor 32 and the ball screw 31; the cable of the electromagnetic measurement unit 42 is inserted into the hollow structure of the ball screw 31 and integrated with the cable of the motor 32, which simplifies the wiring and improves the neatness of the system; the controller A connection is established with the motor 32 and the electromagnetic measurement unit 42 through the communication module, and a command is sent to drive the ball screw 31 to rotate, thereby driving the bracket 33 and the electromagnetic measurement sensor 4 to move along the track 21, so as to realize the flexible arrangement and adjustment of the sensor array; the electromagnetic measurement sensor 4 starts to work, detects the magnetic field signal through the electromagnetic measurement chip module, and undergoes a series of processing through the A / D conversion module, the amplification acquisition module and the data processing module, and finally transmits the optimized signal to the controller through the communication module; the controller adjusts the speed of the motor 32 according to the received signal, and independently adjusts each electromagnetic measurement sensor 4 to optimize the detection effect of the array.

[0055] Example 4 Based on Example 1, Figures 1 to 3 As shown, in addition to the electric mode in which the motor 32 of Example 3 drives the ball screw 31, a manual mode control can also be adopted.

[0056] The end of the ball screw 31 is changed to a hand wheel, and the hand wheel drives the ball screw 31 for position control. Since the electromagnetic measurement sensor 4 is rarely adjusted once installed, the manual mode is generally used, and the electric mode is used for remote control in ultra-high pressure or inconvenient adjustment.

[0057] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person of ordinary skill in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person of ordinary skill in the art may easily think of changes or substitutions within the technical scope disclosed by the present invention, and these shall be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A bracket for adjustable TMR and electromagnetic measurement sensors, characterized in that: The invention comprises a support body (1) arranged in a ring shape, on which adjustment mechanisms (3) are arranged at intervals, and an electromagnetic measurement sensor (4) which is adjustable on the adjustment mechanism (3), wherein: The support body (1) comprises a plurality of fan-shaped bottom plates (2) made of SMC composite material, wherein the fan-shaped bottom plates (2) are provided with a track (21) matching the adjustment mechanism (3) along the center line; adjacent fan-shaped bottom plates (2) are spliced ​​together to form a complete annular structure, and a wiring terminal (23) for connecting to a power source is provided at the outer edge of the fan-shaped bottom plate (2); and a circular through hole is provided at the outer edge of the fan-shaped bottom plate (2); The adjusting mechanism (3) comprises a ball screw (31), wherein the ball screw (31) is mounted on the track (21) of the bracket body (1), one end of the ball screw (31) is connected to the circular through hole, and the other end is connected to the end of the track (21); a bracket (33) is arranged on the ball screw (31); The electromagnetic measurement sensor (4) comprises a carrier sheet (41) and an electromagnetic measurement unit (42) mounted on the carrier sheet (41); the carrier sheet (41) is fan-shaped and is arranged in one-to-one correspondence with the ball screw (31) below; In addition, the support body (1) and the electromagnetic measurement sensor (4) are arranged in upper and lower layers, and the probe electromagnetic measurement sensor (4) is independently adjusted by the adjustment mechanism (3) and arranged in an array along the track (21), thereby forming an adjustable array sensor.

2. The adjustable TMR and electromagnetic measurement sensor support according to claim 1, characterized in that: Each of the sector-shaped bottom plates (2) is provided with at least one adjustment mechanism (3) and one corresponding electromagnetic measurement sensor (4), and the two are provided in a one-to-one correspondence.

3. The adjustable TMR and electromagnetic measurement sensor bracket according to claim 1, characterized in that: The track (21) is a path formed by positioning holes (22) matching the ball screw (31), and the positioning holes (22) are arranged one by one and connected to each other to form a continuous path.

4. The adjustable TMR and electromagnetic measurement sensor support as claimed in claim 1, characterized in that: The adjustment mechanism (3) further comprises fasteners (34), which are respectively located at two ends of the track (21) and are used to fix the ball screw.

5. The adjustable TMR and electromagnetic measurement sensor bracket according to claim 1, characterized in that: The model of the ball screw (31) is a miniature SFK ball screw, and the minimum transmission accuracy is accurate to 0.001 mm.

6. The adjustable TMR and electromagnetic measurement sensor support as claimed in claim 5, characterized in that: The ball screw (31) is a hollow tubular structure, and the cable of the electromagnetic measurement unit (42) passes through the interior of the ball screw through the fastener (34) and is integrated with the cable of the motor (32) into one.

7. The adjustable TMR and electromagnetic measurement sensor support according to claim 6, characterized in that: The support body (1) further comprises a controller, and both the motor (32) and the electromagnetic measuring unit (42) are equipped with a built-in communication module. The controller controls the motor (32) through the communication module to drive the ball screw (31) to rotate, thereby driving the electromagnetic measuring units (42) to be arranged in an array manner; the communication module feeds back the detection signal of the electromagnetic measuring unit (42), and the controller adjusts the rotation speed of the motor (32) and independently adjusts each electromagnetic measuring unit (42) to achieve the best detection effect.

8. The adjustable TMR and electromagnetic measurement sensor support according to claim 7, characterized in that: The electromagnetic measurement unit (42) comprises an electromagnetic measurement chip module, an A / D conversion module, a signal amplification and acquisition module and a data processing module which are connected in sequence. The electromagnetic measurement unit (42) converts the detected magnetic field signal into a digital signal through the A / D conversion module, the signal amplification and acquisition module amplifies and acquires the digital signal, and the data processing module filters, calibrates and performs data format conversion on the acquired signal, and transmits it to the controller through the communication module.

9. The adjustable TMR and electromagnetic measurement sensor support as claimed in claim 1, characterized in that: The electromagnetic measurement sensors (4) are arranged along the track (21) in a geometric array, which includes a circular array (5), a square array (6), and a triangular array (7).

10. A method for controlling a multi-array of adjustable TMR and electromagnetic measurement sensors, using the adjustable TMR and electromagnetic measurement sensor bracket according to any one of claims 1 to 9, characterized in that: The steps include: S1. Preparation of the support body (1): Sector-shaped base plates (2) made of SMC composite material are spliced ​​into a complete annular structure, and each sector-shaped base plate (2) is provided with at least one adjustment mechanism (3) and a corresponding electromagnetic measurement sensor (4); a track (21) is preset on the support body (1), composed of continuous positioning holes (22), and matched with a ball screw (31); S2. Installation of the electromagnetic measurement sensor (4): The electromagnetic measurement sensor (4) is installed on the bracket (33) through the fan-shaped bearing sheet (41); the ball screw (31) is fixed to both ends of the track (21) through the fasteners (34) and connected to the motor (32); the cable of the electromagnetic measurement unit (42) is inserted into the hollow structure of the ball screw (31) and integrated with the cable of the motor (32); S3, array arrangement and adjustment: the controller connects the motor (32) and the electromagnetic measurement unit (42) through the communication module, sends instructions to drive the ball screw (31) to rotate, and drives the bracket (33) and the electromagnetic measurement sensor (4) to move along the track (21) to achieve array arrangement; S4, signal detection and processing: The electromagnetic measurement sensor (4) works, the electromagnetic measurement chip module detects the magnetic field signal, which is converted into a digital signal by the A / D conversion module and then processed by the amplification acquisition module. After filtering, calibration and format conversion by the data processing module, the signal is transmitted to the controller through the communication module. The controller adjusts the speed of the motor (32) according to the signal, independently adjusts each electromagnetic measurement sensor (4), and optimizes the array detection effect.

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