Magnetic field measurement device and measurement method

Abstract

The invention discloses a magnetic field measuring device and method, and the device comprises an excitation assembly which is provided with an excitation space, the excitation space is used for placing an extraction magnetic channel assembly, the extraction magnetic channel assembly comprises a magnetic material part and a supporting structural part, the magnetic material part is detachably disposed on the supporting structural part, and the magnetic material part is detachably disposed on the supporting structural part. The magnetic material piece and the supporting structural piece jointly form a channel suitable for beam movement; and the detection assembly is movably arranged in the channel so as to detect magnetic field information of the magnetic field led out of the channel. The excitation assembly and the detection assembly are matched to measure the leading-out magnetic field in the leading-out magnetic channel assembly, the magnetic field information is directly obtained, the magnetic field information in the channel can be obtained in advance outside the cyclotron before debugging, the adjustment of the leading-out magnetic channel assembly can be guided, the debugging time can be shortened, and the debugging efficiency is improved. Debugging steps are simplified, efficiency is improved, and cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic field measurement, and in particular to a magnetic field measurement device and a measurement method. Background Art

[0002] In the related technology, the cyclotron uses the reasonable matching of magnetic field and electric field to accelerate the beam from the center to the edge. The extraction magnetic channel is located at the edge of the cyclotron. The magnetic field inside the extraction magnetic channel focuses the beam. The two most important indicators of the extraction magnetic channel are the magnetic field size and magnetic field gradient inside the extraction magnetic channel, which are controlled by several magnetic materials of different sizes that make up the extraction magnetic channel. The extraction magnetic channel is usually placed in the cyclotron for direct use, and then the magnetic material inside the extraction magnetic channel is adjusted according to the beam debugging situation to obtain the target magnetic field. However, the debugging time is too long. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a magnetic field measuring device, which shortens the debugging time.

[0004] A magnetic field measuring device according to an embodiment of the present invention includes: an excitation component, the excitation component has an excitation space, the excitation space is used to place an extraction magnetic channel component, the extraction magnetic channel component includes a magnetic material piece and a supporting structure piece, the magnetic material piece is detachably arranged on the supporting structure piece to construct an extraction magnetic field, and the magnetic material piece and the supporting structure piece together form a channel for beam movement; a detection component, the detection component is movably arranged in the channel to detect magnetic field information of the extraction magnetic field in the channel.

[0005] According to the magnetic field measuring device of the embodiment of the present invention, the measurement of the extraction magnetic field in the extraction magnetic channel component is achieved through the cooperation of the excitation component and the detection component, and the magnetic field information is directly obtained. Compared with the related art that directly performs the beam debugging of the cyclotron accelerator without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel component, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0006] In some embodiments, the detection component abuts against an inner wall of the channel.

[0007] In some embodiments, the detection component includes: a main body, which is adapted to the channel; an elastic protrusion, which is arranged on at least one side of the main body, the elastic protrusion protrudes from the surface of the main body, and the elastic protrusion abuts against the inner wall of the channel.

[0008] In some embodiments, the main body is at least partially configured as a rack portion, and the magnetic field measuring device further comprises: a driving device, wherein an output gear of the driving device engages with the rack portion to drive the main body portion to move.

[0009] In some embodiments, the channel is configured as an arc-shaped member, and the detection component includes: a main body member, which is configured as an arc-shaped member, and a plurality of mounting portions are provided on the arc-shaped member, and the plurality of mounting portions are sequentially arranged in the radial direction of the arc-shaped member; and a detection member, which is detachably provided on the mounting portion so as to switch between the plurality of mounting portions.

[0010] In some embodiments, in the radial direction, the main body is provided with a plurality of first mounting grooves, the first mounting grooves are configured as the mounting portions, and the detection member is detachably disposed in the first mounting grooves.

[0011] In some embodiments, the main body is provided with a second mounting groove, the second mounting groove extends along the radial direction, and the detection member is movably disposed in the second mounting groove.

[0012] In some embodiments, a support assembly is also included, and the support assembly includes: a support base, which is disposed on the excitation assembly; and an adjustment member, which is movably disposed on the support base to adjust the position of the lead-out magnetic channel assembly in the excitation space.

[0013] According to the measurement method of an embodiment of the present invention, the measurement method is applied to the above-mentioned magnetic field measurement device, and the measurement method includes: controlling the detection component to detect the magnetic field information of the induced magnetic field at a first position to obtain a first magnetic field value; controlling the detection component to move to a second position, and controlling the detection component to detect the magnetic field information of the induced magnetic field at the second position to obtain a second magnetic field value.

[0014] According to the measurement method of the embodiment of the present invention, the measurement of the extraction magnetic field in the extraction magnetic channel component is achieved through the cooperation of the excitation component and the detection component, and the magnetic field information is directly obtained. Compared with the related art that directly debugs the beam of the cyclotron without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel component, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0015] In some embodiments, the measurement method also includes: removing the magnetic material piece; controlling the detection component to detect the magnetic field information of the induced magnetic field at a first position to obtain a third magnetic field value; controlling the detection component to move to a second position, and controlling the detection component to detect the magnetic field information of the induced magnetic field at the second position to obtain a fourth magnetic field value; using the third magnetic field value to subtract the first magnetic field value to obtain a first measured magnetic field value, and using the fourth magnetic field value to subtract the second magnetic field value to obtain a second measured magnetic field value; comparing the first measured magnetic field value with the first target magnetic field value, and comparing the second measured magnetic field value with the second target magnetic field value to adjust the magnetic material piece.

[0016] The electronic device according to an embodiment of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned measurement method when executing the program.

[0017] According to the electronic device of the embodiment of the present invention, the extraction magnetic field in the extraction magnetic channel component is measured through the cooperation of the excitation component and the detection component, and the magnetic field information is directly obtained. Compared with the related art that directly debugs the beam of the cyclotron without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel component, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0018] According to the non-transitory computer-readable storage medium of an embodiment of the present invention, a computer program is stored thereon, and it is characterized in that when the computer program is executed by a processor, the steps of the above-mentioned measurement method are implemented.

[0019] According to the non-transitory computer-readable storage medium of the embodiment of the present invention, the measurement of the extraction magnetic field in the extraction magnetic channel component is achieved through the cooperation of the excitation component and the detection component, and the magnetic field information is directly obtained. Compared with the related art that directly performs beam debugging of the cyclotron without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel component, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 Schematic diagram of the structure of a magnetic field measuring device in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a magnetic channel assembly according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of an excitation assembly in an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of a detection component in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the coordination of the magnetic channel component, the detection component and the driving device in the embodiment of the present invention;

[0027] Figure 6 It is a simulated magnetic field distribution diagram along the radial direction of the magnetic channel on the internal midline section when the channel is placed in a magnetic field environment in an embodiment of the present invention;

[0028] Figure 7 A simulated magnetic field distribution diagram along the angular direction of a magnetic channel at a radial position of the magnetic channel when the channel is placed in a magnetic field environment in an embodiment of the present invention;

[0029] Figure 8 Flow chart of the measuring method in the embodiment of the present invention.

[0030] Reference numerals:

[0031] 100. Magnetic field measuring device;

[0032] 10. Excitation assembly; 11. Excitation space;

[0033] 20. Detection assembly; 21. Main body; 211. Rack portion; 212. Mounting portion; 213. Guide portion; 22. Elastic protrusion; 23. Detection member;

[0034] 30. driving device; 40. supporting assembly; 50. control member;

[0035] 200, lead-out magnetic channel assembly; 201, channel; 202, magnetic material piece; 203, supporting structure piece. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, features defined as “first” or “second” may explicitly or implicitly include one or more such features, and are used to distinguish and describe features, without any distinction in order or importance.

[0039] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The magnetic field measuring device 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0042] Reference Figures 1 to 5 According to an embodiment of the present invention, a magnetic field measuring device 100 includes: an excitation component 10 and a detection component 20.

[0043] The excitation assembly 10 has an excitation space 11, and the excitation space 11 is used to place the extraction magnetic channel assembly 200. The extraction magnetic channel assembly 200 includes a magnetic material 202 and a support structure 203 to construct an extraction magnetic field, and the magnetic material 202 and the support structure 203 together form a channel 201 suitable for beam movement. The detection assembly 20 is movably arranged in the channel 201 to detect the magnetic field information of the extraction magnetic field in the channel 201.

[0044] Among them, the excitation component 10 generates a magnetic field. For example, the excitation component 10 is a dipole iron. The open structure is more convenient to operate. The extraction magnetic channel component 200 is located in the magnetic field. A channel 201 is provided on the extraction magnetic channel component 200. If the extraction magnetic channel component 200 is placed in a cyclotron accelerator, the beam passes through the channel 201, and the extraction magnetic field focuses the beam.

[0045] In the related art, the cyclotron accelerates the beam from the center to the edge by rationally matching the magnetic field and the electric field. The extraction magnetic channel is located at the edge of the cyclotron. The magnetic field inside the extraction magnetic channel focuses the beam. The two most important indicators of the extraction magnetic channel are the magnetic field size and magnetic field gradient inside the extraction magnetic channel, which are controlled by several magnetic materials of different sizes that make up the extraction magnetic channel. The extraction magnetic channel is usually placed in the cyclotron for direct use, and then the magnetic material inside the extraction magnetic channel is adjusted according to the beam debugging situation to obtain the target magnetic field. However, each adjustment of the iron block requires turning off and on the cyclotron, which results in cumbersome operation and long debugging time.

[0046] In the embodiment of the present invention, through the cooperation of the excitation component 10 and the detection component 20, the detection component 20 can move in the channel 201, and the detection component 20 can detect the magnetic field information of the induced magnetic field in the channel 201, such as the magnetic field size and the magnetic field strength, directly obtain the magnetic field information, and then directly replace the magnetic material part 202 by comparing with the expected magnetic field information. Compared with the related art, in which the cyclotron beam is directly debugged without obtaining the magnetic field information in the induced magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel 201 outside the cyclotron, and realize the adjustment of the induced magnetic channel component 200 before debugging, which simplifies the steps, shortens the debugging time, improves the detection efficiency, and reduces the cost.

[0047] The magnetic material piece 202 affects the induced magnetic field, and the magnetic material piece 202 may be an iron block or other magnetic material piece 202 .

[0048] It should be noted that the extraction magnetic field is the magnetic field formed by the magnetic material piece 202 being affected by the excitation component 10, and the magnetic field in the channel 201 is a composite magnetic field formed by the magnetic field excited by the excitation component 10 and the extraction magnetic field.

[0049] According to the magnetic field measuring device 100 of the embodiment of the present invention, the measurement of the extraction magnetic field in the extraction magnetic channel component 200 is achieved through the cooperation of the excitation component 10 and the detection component 20, and the magnetic field information is directly obtained. Compared with the related art that directly debugs the beam of the cyclotron without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel 201 in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel component 200, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0050] Reference Figure 2 In some specific embodiments, the lead-out magnetic channel assembly 200 also includes a supporting structure 203, on which a through channel is provided, and a magnetic material member 202 is detachably mounted on the surface of the through channel, and the wall surface of the magnetic material member 202 and the remaining wall surfaces of the through channel jointly define a channel 201.

[0051] In some embodiments, the detection component 20 abuts against the inner wall of the channel 201 .

[0052] The detection component 20 is movably disposed in the channel 201 , and the outer wall of the detection component 20 abuts against the inner wall of the channel 201 .

[0053] In the above solution, by setting the detection component 20 to abut against the inner wall of the channel 201, the movement of the detection component 20 is made more stable, thereby reducing the detection error.

[0054] Specifically, the detection component 20 is constructed as a cube, the cross-section of the channel 201 is constructed as a rectangle, the detection component 20 is adapted to the channel 201, and the movement of the detection component 20 is more stable.

[0055] Reference Figure 4 In some embodiments, the detection component 20 includes: a main body 21 and an elastic protrusion 22.

[0056] The main body 21 is adapted to the channel 201 . The elastic protrusion 22 is disposed on at least one side of the main body 21 . The elastic protrusion 22 protrudes from the surface of the main body 21 , and the elastic protrusion 22 abuts against the inner wall of the channel 201 .

[0057] The elastic protrusion 22 protrudes from the surface of the main body 21 . The elastic protrusion 22 has a certain elasticity and can be elastically deformed. When the detection component 20 is located in the channel 201 , the elastic protrusion 22 abuts against the inner wall of the channel 201 .

[0058] In the above scheme, by setting an elastic protrusion 22 on the main body 21 and using the elastic protrusion 22 to abut the inner wall of the channel 201, the main body 21 in the channel 201 is made more stable, thereby reducing the accuracy of the matching between the main body 21 and the channel 201 and reducing the cost.

[0059] Specifically, the elastic protrusion 22 can be arranged on one side of the main body 21, or on multiple sides of the main body 21. There are multiple elastic protrusions 22, and the multiple elastic protrusions 22 are arranged on multiple sides of the main body 21, and the multiple elastic protrusions 22 abut against multiple inner walls of the channel 201 respectively.

[0060] In another embodiment, the detection assembly 20 includes: a main body 21, a telescopic member and an elastic member.

[0061] The main body 21 is adapted to the channel 201, and a positioning groove is provided on the main body 21. The telescopic member is telescopically arranged in the positioning groove. The elastic member is arranged in the positioning groove and is located on the side of the telescopic member away from the opening of the positioning groove, so that the telescopic member has the inertia to stop against the inner wall of the channel 201.

[0062] Through the cooperation of the telescopic member and the elastic member, the telescopic member automatically stops at the inner wall of the channel 201, making the main member 21 in the channel 201 more stable, thereby reducing the cooperation accuracy between the main member 21 and the channel 201 and reducing costs.

[0063] For example, the elastic member is a spring, one end of the spring is against the telescopic member, and the other end is against the bottom of the positioning groove. For example, the telescopic member is a telescopic column, or the telescopic member is a ball, so that the detection component 20 moves more smoothly.

[0064] Reference Figure 4 In some embodiments, the main body 21 is at least partially constructed as a rack portion 211, and the magnetic field measuring device 100 further includes: a driving device 30, wherein an output gear of the driving device 30 engages with the rack portion 211 to drive the main body to move.

[0065] The output gear is meshed with the rack portion 211, and the output gear rotates to drive the entire main body to move.

[0066] In the above solution, by arranging the rack portion 211 on the main body, the main body 21 can move stably by utilizing the cooperation between the output gear and the rack portion 211 .

[0067] Reference Figure 4In some specific embodiments, the main body 21 is partially constructed as a guide portion 213, one side of the guide portion 213 maintains a consistent curvature with the corresponding inner wall of the channel 201, and the elastic protrusion 22 is arranged on the other side of the guide portion 213, which can ensure the reliable contact of the contact surfaces and allow the magnetic channel assembly 200 to have a certain processing or assembly error, ensuring that the guide portion 213 can slide smoothly inside the channel 201.

[0068] In some specific embodiments, the main body 21 has a positioning device for determining the angular position of the detection member 23 relative to the magnetic channel of the channel 201.

[0069] Reference Figure 1 In some specific embodiments, the magnetic field measuring device 100 further includes a control member 50 , which is electrically connected to the driving device 30 to control the movement of the main body, and the control member 50 is electrically connected to the detection member 23 to collect information detected by the detection member 23 .

[0070] Reference Figure 4 In some embodiments, the channel 201 is configured to be arc-shaped, and the detection component 20 includes: a main body 21 and a detection member 23 .

[0071] The main body 21 is constructed as an arc-shaped member, and a plurality of mounting portions 212 are provided on the arc-shaped member, and the plurality of mounting portions 212 are sequentially arranged in the radial direction of the arc-shaped member. The detection member 23 is detachably provided on the mounting portion 212 to switch between the plurality of mounting portions 212 .

[0072] The arc-shaped member has a plurality of mounting portions 212, and the mounting portions 212 are used to fix the detection member 23. In the radial direction, the detection member 23 can be located at a plurality of positions, so as to detect the magnetic field information of different parts of the induced magnetic field.

[0073] In the above scheme, by arranging a plurality of mounting portions 212 on the arc-shaped member, the magnetic field information of different parts of the induced magnetic field is detected, the amount of information is increased, the magnetic field information is richer, and the accuracy is improved.

[0074] Specifically, multiple detection components 23 can be installed on multiple installation parts 212 respectively without disassembly, thereby improving efficiency; or a single detection component 23 can be fixed on different installation parts 212 at different times, and a single detection component 23 can be used to complete the detection of multiple parts, thereby reducing costs.

[0075] Specifically, the detection component 23 may be a Hall probe or other detection components.

[0076] In some embodiments, in the radial direction, the main body 21 is provided with a plurality of first mounting grooves, the first mounting grooves are configured as mounting portions 212, and the detection member 23 is detachably disposed in the first mounting grooves.

[0077] In the radial direction, a plurality of first installation grooves are sequentially arranged, and the detection member 23 is detachably matched with the first installation grooves.

[0078] In the above scheme, by arranging the first mounting grooves in sequence in the radial direction and using the first mounting grooves to fix the detection member 23, the structure is simple and the operation is convenient. Multiple detection members 23 can be fixed in multiple first mounting grooves at the same time, which improves the efficiency. Alternatively, a single detection member 23 can be respectively matched with multiple first mounting grooves, which reduces the cost.

[0079] Specifically, there are two first mounting grooves, and the two first mounting grooves are arranged in sequence in the radial direction. Of course, there can be more first mounting grooves, which will not be described in detail here.

[0080] Specifically, a positioning protrusion is provided in the first installation groove, and a positioning groove is provided on the detection member 23 . The positioning protrusion cooperates with the positioning groove to position the detection member 23 .

[0081] In some embodiments, the main body 21 is provided with a second mounting groove, the second mounting groove extends in a radial direction, and the detection member 23 is movably disposed in the second mounting groove.

[0082] The second installation groove has a certain length and extends in a radial direction. The detection member 23 is movably disposed in the second installation groove. The detection member 23 can move in the second installation groove in the radial direction.

[0083] In the above scheme, by providing the second installation groove for placing the detection member 23, the movement of the detection member 23 is more stable, the movement of the detection member 23 is convenient, and the detection member 23 is convenient to switch between different installation parts 212, thereby improving efficiency.

[0084] Specifically, the detection member 23 can be fixed at any position in the second installation groove. For example, an adhesive layer is provided on the back of the detection member 23 and the detection member 23 is fixed in the second installation groove through the adhesive layer, or an adhesive tape is wrapped around the detection member 23 to fix the detection member 23.

[0085] In some specific embodiments, the detection member 23 is located at upper and lower symmetrical positions inside the channel 201, thereby improving the measurement accuracy.

[0086] Reference Figure 1 In some embodiments, the magnetic field measuring device 100 further includes a supporting assembly 40, and the supporting assembly 40 includes: a supporting base and an adjusting member.

[0087] The support base is provided on the excitation assembly 10. The adjustment member is movably provided on the support base to adjust the position of the lead-out magnetic channel assembly 200 in the excitation space 11. The lead-out magnetic channel assembly 200 is provided on the adjustment member to adjust the excitation assembly 10.

[0088] The support base is fixed on the excitation assembly 10 , and the support base plays a supporting role. The adjustment member is installed between the support base and the lead-out magnetic channel assembly 200 .

[0089] In the above scheme, by setting an adjustment member on the support base, the position of the lead-out magnetic channel assembly 200 is adjusted by the adjustment member, so that the channel 201 is in the correct position in the excitation space 11, which facilitates operation and improves measurement accuracy.

[0090] For example, the adjusting member is a connecting column with threads, the connecting column is threadedly connected to the supporting base, the connecting column is connected to the lead-out magnetic channel assembly 200, and the connecting column is rotated to adjust the lead-out magnetic channel assembly 200.

[0091] In some embodiments, the support assembly 40 and the extraction magnetic channel assembly 200 have positioning devices so that the installation position of the extraction magnetic channel assembly 200 in the magnetic field environment is within the allowable error range each time.

[0092] According to the measurement method of the embodiment of the present invention, the measurement method is applied to the above-mentioned magnetic field measurement device, and the measurement method comprises the following steps:

[0093] S2: Control the detection component to detect magnetic field information of the induced magnetic field at the first position to obtain a first magnetic field value.

[0094] S3: Control the detection component to move to the second position, and control the detection component to detect magnetic field information of the induced magnetic field at the second position to obtain a second magnetic field value.

[0095] S4: Remove the magnetic material.

[0096] The magnetic material piece is detachable and can be removed from the supporting structure piece.

[0097] S5: controlling the detection component to detect magnetic field information of the induced magnetic field at the first position to obtain a third magnetic field value;

[0098] S6: Control the detection component to move to the second position, and control the detection component to detect magnetic field information of the induced magnetic field at the second position to obtain a fourth magnetic field value.

[0099] S7: Use the third magnetic field value to subtract the first magnetic field value to obtain a first measured magnetic field value, and use the fourth magnetic field value to subtract the second magnetic field value to obtain a second measured magnetic field value.

[0100] S8: Compare the first measured magnetic field value with the first target magnetic field value, and compare the second measured magnetic field value with the second target magnetic field value to adjust the magnetic material piece.

[0101] The detection component moves in the channel from a first position to a second position, and detects different magnetic field values ​​at different positions. The detection component includes a main body and a detection component. The main body is provided with a plurality of mounting parts, and the detection component can be switchably arranged on the plurality of mounting parts. The detection component can be a Hall probe. The driving device is a motor, and the motor drives the main body to move.

[0102] The magnetic material piece may be an iron block.

[0103] The specific steps of the measurement method are as follows:

[0104] Step 1. Determine different radial positions of the Hall probe inside the channel (e.g., R1, R2, R3, etc.);

[0105] Step 2. Use analysis software to simulate the same magnetic field environment as the actual one ( Figure 1 ), the magnetic field distribution of the lead-out area magnetic channel angular direction at different positions in step 1 is as follows: Figure 7 As shown. Focus on the simulated magnetic field values ​​at the angular midpoints of the channels (BsR1, BsR2, BsR3, etc.);

[0106] Step 3. Set the channel (such as Figure 2 )Fixed in a magnetic field environment with a support component ( Figure 1 );

[0107] Step 4. Fix the Hall probe at the first position (R1) of step 1 on the main body;

[0108] Step 5. Insert the main body into the channel to be measured, and drive the Hall probe from one side of the channel to the other side through the channel. Measure and record a magnetic field value at a certain interval, focusing on several magnetic field values ​​near the angular midpoint of the channel (BmR1a, BmR1b, BmR1c, etc.);

[0109] Step 6. Pull out the main body from the channel and fix the Hall probe to the next position (R2) of step 1 on the main body;

[0110] Step 7. Repeat steps 5 and 6 until the magnetic field values ​​at all positions in step 1 are measured;

[0111] Step 8. Take out the channel in the magnetic field environment and remove the iron block in the channel;

[0112] Step 9. Fix the channel after removing the iron block with a supporting component in the same position as in the magnetic field environment in step 3;

[0113] Step 10. Fix the Hall probe at the first position (R1) of step 1 on the main body;

[0114] Step 11. Insert the main body into the channel to be measured, and drive the Hall probe to move from one side of the channel through the inside of the channel to the other side. Measure and record a magnetic field value at a certain interval, focusing on several magnetic field values ​​near the angular midpoint of the channel (Bm0R1a, Bm0R1b, Bm0R1c, etc.); preferably, this measurement step can be consistent with the measurement step of step 5.

[0115] Step 12. Pull out the main body in the channel and fix the Hall probe to the next position (R2) of step 1 on the main body;

[0116] Step 13. Repeat steps 11 and 12 until the magnetic field values ​​at all positions in step 1 are measured;

[0117] Step 14. Subtract the average value of the measured magnetic field values ​​(Bm0R1a, Bm0R1b, Bm0R1c, etc.) in step 11 from the average value of the measured magnetic field values ​​(BmR1a, BmR1b, BmR1c, etc.) in step 5 to obtain the measured magnetic field value (BmR1) at the angular midpoint of the channel at R1 in step 3;

[0118] Step 15. Repeat step 14 until the measured magnetic field values ​​(BmR1, BmR2, BmR3, etc.) at all positions in step 1 are obtained;

[0119] Step 16. By comparing the simulated magnetic field values ​​(BsR1, BsR2, BsR3, etc.) of step 2 with the measured magnetic field values ​​(BmR1, BmR2, BmR3, etc.) of step 15, the magnitude and gradient of the magnetic field in the radial direction of the channel inside the channel can be evaluated, such as Figure 6 As shown, it provides a basis for adjusting the magnetic material parts.

[0120] According to the measurement method of the embodiment of the present invention, the measurement of the extraction magnetic field in the extraction magnetic channel assembly 200 is achieved through the cooperation of the excitation assembly 10 and the detection assembly 20, and the magnetic field information is directly obtained. Compared with the related art that directly debugs the beam of the cyclotron without obtaining the magnetic field information in the extraction magnetic channel, the embodiment of the present invention can obtain the magnetic field information in the channel 201 in advance outside the cyclotron before debugging and guide the adjustment of the extraction magnetic channel assembly 200, which can shorten the debugging time, simplify the debugging steps, improve efficiency and reduce costs.

[0121] According to an electronic device of an embodiment of the present invention, the electronic device may include: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus. The processor may call the logic instructions in the memory to execute the measurement method, and the measurement method includes: controlling the detection component to detect the magnetic field information of the induced magnetic field at the first position to obtain the first magnetic field value; controlling the detection component to move to the second position, and controlling the detection component to detect the magnetic field information of the induced magnetic field at the second position to obtain the second magnetic field value.

[0122] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0123] Furthermore, an embodiment of the present invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the measurement methods provided by the above-mentioned method embodiments, and the measurement methods include: controlling the detection component to detect the magnetic field information of the induced magnetic field at a first position to obtain a first magnetic field value; controlling the detection component to move to a second position, and controlling the detection component to detect the magnetic field information of the induced magnetic field at the second position to obtain a second magnetic field value.

[0124] On the other hand, an embodiment of the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the measurement method provided by the above-mentioned embodiments. The measurement method includes: controlling the detection component to detect the magnetic field information of the induced magnetic field at a first position to obtain a first magnetic field value; controlling the detection component to move to a second position, and controlling the detection component to detect the magnetic field information of the induced magnetic field at the second position to obtain a second magnetic field value.

[0125] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.

[0126] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0127] Other structures and operations of the magnetic field measuring device according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0128] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0129] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A magnetic field measuring device, characterized in that: include: An excitation component (10), the excitation component (10) having an excitation space (11), the excitation space (11) being used to place an extraction magnetic channel component (200), the extraction magnetic channel component (200) comprising a magnetic material piece (202) and a support structure piece (203), the magnetic material piece (202) being detachably arranged on the support structure piece (203) to construct an extraction magnetic field, and the magnetic material piece (202) and the support structure piece (203) jointly forming a channel (201) suitable for beam movement; A detection component (20) is movably disposed in the channel (201) to detect magnetic field information of the induced magnetic field in the channel (201).

2. The magnetic field measuring device according to claim 1, characterized in that: The detection component (20) abuts against the inner wall of the channel (201).

3. The magnetic field measuring device according to claim 2, characterized in that: The detection component (20) comprises: A main body (21), wherein the main body (21) is adapted to fit the channel (201); An elastic protrusion (22), wherein the elastic protrusion (22) is arranged on at least one side of the main body (21), the elastic protrusion (22) protrudes from the surface of the main body (21), and the elastic protrusion (22) abuts against the inner wall of the channel (201).

4. The magnetic field measuring device according to claim 3, characterized in that: The main body (21) is at least partially configured as a rack portion (211), and the magnetic field measuring device further comprises a driving device (30), wherein an output gear of the driving device (30) engages with the rack portion (211) to drive the main body to move.

5. The magnetic field measuring device according to claim 1, characterized in that: The channel (201) is configured to be arc-shaped, and the detection assembly (20) comprises: A main body (21), the main body (21) being constructed as an arc-shaped member, the arc-shaped member being provided with a plurality of mounting portions (212), the plurality of mounting portions (212) being arranged in sequence in a radial direction of the arc-shaped member; A detection member (23), wherein the detection member (23) is detachably arranged on the mounting portion (212) so as to be switched between a plurality of mounting portions (212).

6. The magnetic field measuring device according to claim 5, characterized in that: In the radial direction, the main body (21) is provided with a plurality of first installation grooves, the first installation grooves are configured as the installation portions (212), and the detection member (23) is detachably arranged in the first installation grooves.

7. The magnetic field measuring device according to claim 5, characterized in that: The main body (21) is provided with a second mounting groove, the second mounting groove extends along the radial direction, and the detection member (23) is movably arranged in the second mounting groove.

8. The magnetic field measuring device according to any one of claims 1 to 7, characterized in that: Also included is a support assembly (40), the support assembly (40) comprising: A support base, the support base being arranged on the excitation component (10); An adjusting member is movably arranged on the supporting base to adjust the position of the lead-out magnetic channel assembly (200) in the excitation space (11).

9. A measurement method, characterized in that: The measuring method is applied to the magnetic field measuring device according to any one of claims 1 to 8, and the measuring method comprises: Controlling the detection component to detect magnetic field information of the induced magnetic field at a first position to obtain a first magnetic field value; The detection component is controlled to move to a second position, and the detection component is controlled to detect magnetic field information of the induced magnetic field at the second position to obtain a second magnetic field value.

10. The measuring method according to claim 9, characterized in that: Also includes: Removing the magnetic material piece; Controlling the detection component to detect magnetic field information of the induced magnetic field at a first position to obtain a third magnetic field value; Controlling the detection component to move to a second position, and controlling the detection component to detect magnetic field information of the induced magnetic field at the second position to obtain a fourth magnetic field value; Subtracting the first magnetic field value from the third magnetic field value to obtain a first measured magnetic field value, and subtracting the second magnetic field value from the fourth magnetic field value to obtain a second measured magnetic field value; The first measured magnetic field value is compared with a first target magnetic field value, and the second measured magnetic field value is compared with a second target magnetic field value to adjust the magnetic material piece.

11. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the steps of the measurement method according to claim 9 or 10 are implemented.

12. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the measurement method according to claim 9 or 10 are implemented.

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