A device and method for detecting electromagnetic field distribution applied to a ferrite powder

Abstract

The application provides an electromagnetic field distribution detection device and method applied to ferrite powder, relates to the technical field of ferrite powder detection, and comprises a positioning base, the top of the positioning base is provided with a positioning rod, the outer side of the positioning rod is provided with two sets of limiting plates, the inner side of the lower limiting plate is rotationally provided with a rotating ring one, the inner side of the limiting plate on the upper side of the outer side of the positioning rod is rotationally provided with a rotating ring two, the bottom of one movable plate is provided with a plurality of uniformly distributed push rods, and the bottom of the other movable plate is provided with a plurality of micro magnetic field probe assemblies. When the rotating detection cover is rotated by the servo motor, the push rods can effectively push the ferrite powder and the plant powder, the uniform mixing of the two is realized, the ferrite powder is uniformly distributed in the plant powder, the product quality is improved, and the problem that part of the ferrite powder may be gathered together and unevenly dispersed in the plant powder, resulting in the imbalance of electromagnetic field distribution in the detection process, is solved.

Description

Technical Field

[0001] This invention relates to the field of ferrite powder detection technology, and in particular to an electromagnetic field distribution detection device and method for ferrite powder applications. Background Technology

[0002] Ferrite powder is a composite magnetic material powder composed of iron oxide and other metal oxides. It has high resistivity, stable chemical properties, and excellent electromagnetic properties. When ferrite powder is used in the heating process of plant powder, the addition of ferrite material improves the electromagnetic field distribution and enhances the uniformity of heating. Therefore, when using ferrite powder, it is necessary to use a detection device to detect its electromagnetic field distribution to ensure the quality of the heated plant powder.

[0003] In existing technologies, when detecting the electromagnetic field distribution of ferrite powder applications, the ferrite powder is usually added to the plant powder raw material for use. Some ferrite powder may clump together and be unevenly dispersed in the plant powder, resulting in an imbalance in the electromagnetic field distribution during the detection process, increasing the error of the detection data, failing to accurately reflect the actual working conditions, and thus affecting the quality of subsequent processing of the heated plant powder. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an electromagnetic field distribution detection device and method for ferrite powder applications, thereby solving the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to an electromagnetic field distribution detection device and method for ferrite powder applications, specifically comprising: a positioning base, an operation display screen mounted on the top front side of the positioning base, and a support plate mounted on one top end of the positioning base; a positioning rod mounted on the other top end of the positioning base; two sets of upper and lower limiting plates mounted on the outer side of the positioning rod, with a rotating ring rotatably mounted on the inner side of the lower limiting plate; a rotating ring rotatably mounted on the inner side of the upper limiting plate on the outer side of the positioning rod; two support brackets and one support bracket 2 mounted on the outer side of the rotating ring 2; a fixing ring mounted on the side end of each of the two support brackets; a connecting horizontal plate mounted at the middle position of the inner side of each of the two fixing rings; springs mounted at the bottom of each of the two connecting horizontal plates, and movable plates mounted at the bottom of each of the two connecting horizontal plates via the springs; multiple evenly distributed levers mounted on the bottom of one movable plate, and multiple miniature magnetic field probe assemblies mounted on the bottom of the other movable plate.

[0006] Furthermore, a shield and a positioning ring are respectively installed on the top of one side of the support plate, wherein the shield is a circular structure; the positioning ring is located above the shield, and a rotating detection cover is rotatably installed on the inner side of the positioning ring.

[0007] Furthermore, the top outer side of the rotating detection cover is provided with a serrated structure; a servo motor is installed on the outer side of the support plate, and a gear is installed on the output end of the servo motor, which meshes with the serrated structure on the top outer side of the rotating detection cover.

[0008] Furthermore, three support plates are installed on the outer side of the rotating ring; a vibrating sample magnetometer assembly, an induction heating assembly, and an impedance analyzer assembly are respectively installed on the side ends of the three support plates; a flow guide shroud is installed on the top outer side of the positioning base.

[0009] Furthermore, the bottom of the first flow guide is a conical structure, and a spring is installed on the inner side of the first flow guide, and a screen plate is installed on the inner side of the first flow guide through the spring; a servo motor is installed on the outer side of the first flow guide, and a rotating push plate is installed on the output end of the servo motor.

[0010] Furthermore, the rotating push plate has an elliptical structure, and the outer side of the sieve plate is rotatably installed on the outer side of the rotating push plate; the other outer side of the flow guide shroud one is installed with the flow guide shroud two; a baffle is installed on one side of the top of the flow guide shroud two, and a flow guide pipe one is installed at the bottom of the flow guide shroud two.

[0011] Furthermore, a conveying pipe is installed on one side end of the support bracket 1; a guide pipe 2 is installed on the outside of the conveying pipe, and the conveying pipe and the guide pipe 2 are respectively movably installed at the bottom of the guide cover 1 and the guide pipe 1.

[0012] Furthermore, guide rails are installed at the top of both movable plates; a force-bearing plate is installed at the top of the guide rails through the sliding connecting cross plate.

[0013] Furthermore, a drive cylinder is installed on the outer bottom of the first guide shield, and a force-applying plate is installed on the output end of the bottom of the drive cylinder, wherein the force-applying plate moves downward and is installed on the top of the force-receiving plate.

[0014] Furthermore, this includes the following steps: First, sample sieving pretreatment: place ferrite powder inside the sieve plate, start the servo motor to drive the rotating push plate to vibrate the sieve plate, remove large particles in the ferrite powder, and obtain test powder with uniform particle size. Second, sample feeding: the ferrite powder after sieving falls into the inner side of the rotating detection hood through the first guide hood and the conveying pipe, and the plant powder is sent into the inner side of the same rotating detection hood through the second guide hood and the first guide pipe, thus completing the placement of the sample to be tested. Third, the sample is mixed evenly. Rotating the rotating ring two drives the lever to move to the top of the rotating detection cover. The drive cylinder drives the force plate to press down the force plate. Through the guide slide rod, the lever at the bottom of the movable plate extends into the rotating detection cover. The servo motor drives the rotating detection cover to rotate. The lever stirs the ferrite powder and plant powder, and the two are mixed evenly. Fourth, magnetic field calibration and interference shielding: Next, rotate the rotating ring to move the vibrating sample magnetometer assembly between the rotating detection cover and the shielding cover. The vibrating sample magnetometer assembly calibrates the magnetic field strength of the detection area, eliminating the influence of the background magnetic field on the detection results. Fifth, simulate environmental heating treatment, then rotate to move the induction heating component to the bottom of the rotating detection chamber, and heat the sample inside the rotating detection chamber through the induction heating component to simulate the temperature of the plant powder processing environment. At the same time, the rotating detection chamber keeps rotating to ensure that the sample is heated evenly. Sixth, the electromagnetic field distribution is quantitatively detected. Then, the impedance analyzer assembly is rotated to move to the bottom of the rotating detection chamber. The magnetic permeability and electromagnetic field distribution of the mixed sample are tested by the impedance analyzer assembly. The rotating ring 2 is rotated to move the micro magnetic field probe assembly above the rotating detection chamber. The drive cylinder drives the micro magnetic field probe assembly down to the sample surface to perform a full-coverage scan detection of the electromagnetic field intensity on the sample surface. 7. Data processing and result output: The magnetic field calibration data, heating parameters, quantitative detection data and surface scanning data are integrated and fitted, and the accurate detection results of the electromagnetic field distribution of ferrite powder are output through the operation display screen on the positioning base.

[0015] This invention provides an electromagnetic field distribution detection device and method for ferrite powder applications, which has the following advantages: In use, this invention utilizes a fixed ring to position the connecting horizontal plate above the rotating detection cover. A drive cylinder drives a force-applying plate to move a force-receiving plate. The force-receiving plate, guided by a sliding rod, can be positioned inside the rotating detection cover. When the servo motor drives the rotating detection cover to rotate, the rod effectively moves the ferrite powder and plant powder, achieving uniform mixing and ensuring that the ferrite powder is evenly distributed in the plant powder, thus improving product quality. After mixing, the positions of the fixed ring and connecting horizontal plate are adjusted by rotating the rotating ring again. The micro magnetic field probe assembly is positioned above the ferrite powder, enabling it to scan the ferrite powder and measure the electromagnetic field intensity distribution. Combined with quantitative data, the accuracy of the detection results can be guaranteed.

[0016] In addition, the vibrating sample magnetometer component has the function of calibrating the magnetic field strength, which accurately calibrates the magnetic field strength of the ferrite powder before the test begins, effectively reducing the interference of external magnetic fields on the test results. The induction heating component can heat the ferrite powder and plant powder inside the rotating test chamber, simulating the actual environment of plant powder processing, making the test results closer to the actual application scenario and more realistically reflecting the electromagnetic field distribution of ferrite powder in the plant powder processing process. The impedance analyzer component can detect and quantify the electromagnetic field distribution data of ferrite powder, which facilitates the storage, analysis and processing of test data and ensures the detectability of the test data. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A three-dimensional structural diagram of the positioning rod of the present invention is shown; Figure 3 A cross-sectional view of the rotating detection cover of the present invention is shown; Figure 4 A three-dimensional structural schematic diagram of the flow guide shield of the present invention is shown; Figure 5 A three-dimensional structural diagram of the sieve plate of the present invention is shown; Figure 6 A cross-sectional view of the flow guide shield of the present invention is shown; Figure 7 A three-dimensional structural diagram of the delivery pipe of the present invention is shown; Figure 8 A three-dimensional structural diagram of the bottom of the connecting horizontal plate of the present invention is shown; Figure 9 A schematic cross-sectional view of the fixed ring structure of the present invention is shown.

[0020] List of reference numerals 1. Positioning base; 101. Support plate; 102. Shielding cover; 103. Positioning ring; 104. Rotating detection cover; 105. Positioning rod; 106. Rotating ring one; 107. Support plate; 108. Vibrating sample magnetometer assembly; 109. Induction heating assembly; 1010. Impedance analyzer assembly; 2. Flow guide shroud one; 201. Screen plate; 202. Rotating push plate; 203. Flow guide shroud two; 204. Flow guide pipe one; 3. Rotating ring two; 301. Support bracket one; 302. Support bracket two; 303. Conveying pipe; 304. Guide pipe two; 305. Fixed ring; 306. Connecting horizontal plate; 307. Movable plate; 308. Lever; 309. Miniature magnetic field probe assembly; 3010. Guide slide bar; 3011. Force plate; 3012. Force application plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 9 : Example 1: This invention proposes an electromagnetic field distribution detection device and method for ferrite powder applications, comprising: a positioning base 1, an operation display screen mounted on the top front side of the positioning base 1, and a support plate 101 mounted on one top end of the positioning base 1; a positioning rod 105 mounted on the other top end of the positioning base 1; two sets of upper and lower limiting plates mounted on the outer side of the positioning rod 105, and a rotating ring 106 rotatably mounted on the inner side of the lower limiting plate; a shielding cover 102 and a positioning ring 103 are respectively mounted on the top side of one side of the support plate 101, wherein the shielding cover 102 is a circular structure; Positioning ring 103 is located above shielding cover 102, and rotating detection cover 104 is rotatably mounted on the inner side of positioning ring 103; the top of the outer side of rotating detection cover 104 is provided with a sawtooth structure; a servo motor is mounted on the outer side of support plate 101, and a gear is mounted on the output end of the servo motor, which meshes with the sawtooth structure on the top of the outer side of rotating detection cover 104; three support plates 107 are mounted on the outer side of rotating ring 106; a vibrating sample magnetometer assembly 108, an induction heating assembly 109, and an impedance analyzer assembly 1010 are respectively mounted on the side ends of the three support plates 107.

[0023] In this embodiment of the invention, when detecting the electromagnetic field distribution of ferrite powder, the vibrating sample magnetometer assembly 108, the induction heating assembly 109, and the impedance analyzer assembly 1010 on the three sides of the support plate 107 respectively have the functions of calibrating the magnetic field strength, heating the sample, and quantifying the permeability test. Ferrite powder and plant powder are respectively added to the inner side of the rotating detection cover 104. The gear meshing at the output end of the servo motor on the outer side of the support plate 101 drives the rotating detection cover 104 to rotate inside the positioning ring 103. At the same time, the rotating ring 106 rotates outside the positioning rod 105 on the positioning base 1, and drives the vibrating sample magnetometer assembly 108, the induction heating assembly 109, and the impedance analyzer assembly 1010 respectively through the support plate 107. The sample magnetometer assembly 108, the induction heating assembly 109, and the impedance analyzer assembly 1010 are rotated so that they pass through the bottom of the rotating detection cover 104 and the top of the shielding cover 102, respectively. The shielding cover 102 has a shielding function, shielding electromagnetic fields, heat, and other operating conditions, reducing the influence of external forces on the ferrite powder detection. The sample magnetometer assembly 108 first calibrates the magnetic field strength of the ferrite powder to reduce the influence of external magnetic fields. Then, the induction heating assembly 109 is rotated to heat the ferrite powder and plant powder inside the rotating detection cover 104, simulating the processing environment of plant powder. Finally, the impedance analyzer assembly 1010 is rotated to detect the electromagnetic field distribution data of the ferrite powder, quantifying the electromagnetic field distribution and facilitating the acquisition of accurate data.

[0024] In Example 2, based on Example 1, a flow guide shroud 2 is installed on the top outer side of the positioning base 1; the bottom of the flow guide shroud 2 is conical, and a spring is installed on the inner side of the flow guide shroud 2, through which a sieve plate 201 is installed; a servo motor is installed on the outer side of the flow guide shroud 2, and a rotating push plate 202 is installed on the output end of the servo motor; the rotating push plate 202 is elliptical, and the outer side of the sieve plate 201 is rotatably installed on the outer side of the rotating push plate 202; a flow guide shroud 203 is installed on the other outer side of the flow guide shroud 2; a baffle is installed on one side of the top of the flow guide shroud 203, and a flow guide pipe 204 is installed at the bottom of the flow guide shroud 203, for the application of ferrite powder... When using electromagnetic field distribution for detection, ferrite powder is placed inside the sieve plate 201. The output end of the servo motor on the outside of the flow guide shroud 2 drives the rotating push plate 202 to rotate, so that the far end of the rotating push plate 202 pushes the sieve plate 201 to move inside the flow guide shroud 2. The spring on the outside of the sieve plate 201 provides a rebound effect, so that the sieve plate 201 vibrates inside the flow guide shroud 2, so that larger particles in the ferrite powder are screened out, and the ferrite powder flows through the inside of the flow guide shroud 2 to the rotating detection shroud 104. Then, plant powder is put in through the flow guide shroud 203, so that the plant powder is guided through the flow guide pipe 204 to the inside of the rotating detection shroud 104 for storage.

[0025] In Example 3, based on Example 1, a rotating ring 2 3 is rotatably installed on the inner side of the limiting plate above the outer side of the positioning rod 105; two support brackets 1 301 and one support bracket 2 302 are installed on the outer side of the rotating ring 2 3; a conveying pipe 303 is installed on the side end of one support bracket 1 301; a guide pipe 2 304 is installed on the outer side of the conveying pipe 303, and the conveying pipe 303 and the guide pipe 2 304 are respectively movably installed at the bottom of the guide cover 1 2 and the guide pipe 1 204; a fixing ring 305 is installed on the side end of both support brackets 1 301; A connecting horizontal plate 306 is installed at the middle position of the inner side of the fixed ring 305; a spring is installed at the bottom of both connecting horizontal plates 306, and a movable plate 307 is installed at the bottom of both connecting horizontal plates 306 through the spring; multiple evenly distributed levers 308 are installed at the bottom of one movable plate 307, and multiple miniature magnetic field probe assemblies 309 are installed at the bottom of the other movable plate 307; a guide slide rod 3010 is installed at the top of both movable plates 307; a force-bearing plate 3011 is installed through the top of the guide slide rod 3010 and slidingly connected horizontal plate 306.A drive cylinder is installed on the bottom outer side of the flow guide shroud 2. A force application plate 3012 is installed on the output end of the bottom of the drive cylinder. The force application plate 3012 moves downward and is installed on top of the force receiving plate 3011. When detecting the electromagnetic field distribution of the ferrite powder application, the rotating ring 3 rotates on the outside of the positioning rod 105. The outside of the rotating ring 3 rotates the conveying pipe 303 and the fixing ring 305 through the support bracket 302 and the two support brackets 301, so that the conveying pipe 303 is installed at the bottom of the flow guide shroud 2. 03. The second guide pipe 304 is installed at the bottom of the first guide pipe 204 to reduce the problem of spillage during the transportation of ferrite powder and plant powder. After the ferrite powder is added, the second rotating ring 3 is rotated to move the fixed ring 305 through the support bracket 301. One fixed ring 305 drives the connecting horizontal plate 306 to be above the rotating detection cover 104. The bottom drive cylinder on the outer side of the first guide cover 2 drives the force plate 3012 to move downward. The force plate 3012 pushes the force receiving plate 3011 downward. The bottom of the force receiving plate 3011 is guided by the guide slide rod 3. 010 The through-connecting horizontal plate 306 drives the movable plate 307 to move downwards. The movable plate 307 drives the lever 308 to move downwards and place it inside the rotating detection cover 104. The rotating detection cover 104 rotates under the drive of the servo motor, causing the lever 308 to move the ferrite powder and plant powder together, making the ferrite powder evenly distributed. After the ferrite powder is mixed, the force plate 3012 moves upwards, and the movable plate 307 returns to its original position under the action of the spring. The rotating ring 3 rotates again, driving the support bracket 301. Rotation causes the fixing ring 305 and connecting cross plate 306 to be positioned above the rotating detection cover 104. The drive cylinder moves the force application plate 3012 downwards, which presses against the force receiving plate 3011. This, in turn, drives the movable plate 307 downwards via the guide slide rod 3010. The micro magnetic field probe assembly 309 at the bottom of the movable plate 307 is positioned above the ferrite powder. By scanning the surface of the ferrite powder with the micro magnetic field probe assembly 309, the electromagnetic field intensity distribution is directly measured. Combined with the quantitative data from the detection, the accuracy of the detection results is ensured.

[0026] A method for detecting the electromagnetic field distribution of ferrite powder applications includes the following steps: First, sample sieving pretreatment: place ferrite powder inside the sieve plate 201, start the servo motor to drive the rotating push plate 202 to the far end to push the sieve plate 201 to vibrate, remove large particles in the ferrite powder, and obtain test powder with uniform particle size. Second, sample feeding: the ferrite powder after sieving falls into the inner side of the rotating detection hood 104 through the guide hood 1 2 and the conveying pipe 303, and the plant powder is sent into the inner side of the same rotating detection hood 104 through the guide hood 2 203 and the guide pipe 1 204, thus completing the placement of the sample to be tested. Third, the sample is mixed evenly. Rotating the rotating ring 3 drives the lever 308 to move above the rotating detection cover 104. The drive cylinder drives the force plate 3012 to press down the force plate 3011. Through the guide slide rod 3010, the bottom lever 308 of the movable plate 307 extends into the rotating detection cover 104. The servo motor drives the rotating detection cover 104 to rotate. The lever 308 stirs the ferrite powder and plant powder, and the two are mixed evenly. Fourth, magnetic field calibration and interference shielding: Rotate the rotating ring 106 to move the vibrating sample magnetometer assembly 108 between the rotating detection cover 104 and the shielding cover 102. The vibrating sample magnetometer assembly 108 calibrates the magnetic field strength of the detection area to eliminate the influence of the background magnetic field on the detection results. Fifth, simulate environmental heating treatment, then rotate to move the induction heating component 109 to the bottom of the rotating detection cover 104, and heat the sample inside the rotating detection cover 104 through the induction heating component 109 to simulate the temperature of the plant powder processing environment. At the same time, the rotating detection cover 104 keeps rotating to ensure that the sample is heated evenly. Sixth, the electromagnetic field distribution is quantitatively detected. Then, the impedance analyzer assembly 1010 is rotated to move to the bottom of the rotating detection cover 104. The magnetic permeability test and electromagnetic field distribution quantitative detection of the mixed sample are performed by the impedance analyzer assembly 1010. The rotating ring 2 3 is rotated to move the micro magnetic field probe assembly 309 above the rotating detection cover 104. The drive cylinder drives the micro magnetic field probe assembly 309 down to the sample surface to perform a full-coverage scan detection of the electromagnetic field intensity on the sample surface. 7. Data processing and result output: The magnetic field calibration data, heating parameters, quantitative detection data and surface scanning data are integrated and fitted, and the accurate detection results of the electromagnetic field distribution of ferrite powder are output through the operation display screen on the positioning base 1.

[0027] The working principle of this embodiment is as follows: Ferrite powder is placed inside the sieve plate 201. The output end of the servo motor on the outside of the first guide hood 2 drives the rotating push plate 202 to vibrate the sieve plate 201. The ferrite powder flows through the inside of the first guide hood 2 to the rotating detection hood 104. The plant powder is guided through the second guide hood 203 and the first guide pipe 204 to the rotating detection hood 104. The gear meshing of the output end of the servo motor on the outside of the support plate 101 drives the rotating detection hood 104 to rotate inside the positioning ring 103 and outside the positioning rod 105. The rotating ring 106 rotates through the support plate 107 to drive the vibrating sample magnetometer assembly 108. The heating assembly 109 and the impedance analyzer assembly 1010 rotate, causing the vibrating sample magnetometer assembly 108, the induction heating assembly 109, and the impedance analyzer assembly 1010 to pass through the bottom of the rotating detection cover 104 and the top of the shielding cover 102, respectively. The vibrating sample magnetometer assembly 108 first calibrates the magnetic field strength of the ferrite powder, then rotates the induction heating assembly 109 to heat the ferrite powder and plant powder inside the rotating detection cover 104, simulating the processing environment of the plant powder. Next, the impedance analyzer assembly 1010 rotates to detect the electromagnetic field distribution data of the ferrite powder, obtaining quantitative data. This data is then distributed outside the positioning rod 105. The rotating ring 23 rotates via the second support bracket 302 and two support brackets 301 to drive the conveying pipe 303 and the fixed ring 305 to rotate. The conveying pipe 303 is installed at the bottom of the flow guide hood 2, and the second flow guide pipe 304 is installed at the bottom of the flow guide pipe 204 to guide the ferrite powder and plant powder. After the ferrite powder is added, the rotating ring 23 rotates again to drive the fixed ring 305 to move via the support bracket 301. The drive cylinder drives the force plate 3012 to push the force receiving plate 3011 downward. The force receiving plate 3011 drives the lever 308 at the bottom of the movable plate 307 to be placed in the rotating detection hood 10 via the guide slide rod 3010. Inside the 4th chamber, the rotating detection cover 104 rotates under the drive of the servo motor. The lever 308 moves the ferrite powder and plant powder together. After the ferrite powder is mixed, it is heated by the induction heating component 109. Then, the rotating ring 3 rotates to drive the support bracket 301 to rotate. The drive cylinder drives the force plate 3012 to move downward. The force plate 3012 presses the force receiving plate 3011 and drives the movable plate 307 to move downward through the guide slide rod 3010. The micro magnetic field probe component 309 at the bottom of the movable plate 307 is above the ferrite powder. The micro magnetic field probe component 309 scans the surface of the ferrite powder to measure the electromagnetic field intensity distribution.

[0028] The following points should be noted in this article: 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0029] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0030] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An electromagnetic field distribution detection device for ferrite powder applications, comprising: A positioning base (1) is provided with an operation display screen mounted on its top front side, and a support plate (101) is mounted on one end of the top of the positioning base (1). The positioning base (1) is characterized by having a positioning rod (105) mounted on the other end of its top. Two sets of upper and lower limiting plates are mounted on the outer side of the positioning rod (105), and a rotating ring (106) is rotatably mounted on the inner side of the lower limiting plate. A rotating ring (3) is rotatably mounted on the inner side of the upper limiting plate on the outer side of the positioning rod (105). Two support brackets (301) are mounted on the outer side of the rotating ring (3). And a second support bracket (302); a fixing ring (305) is installed on the side end of each of the two support brackets (301); a connecting plate (306) is installed in the middle of the inner side of each of the two fixing rings (305); a spring is installed at the bottom of each of the two connecting plates (306), and a movable plate (307) is installed at the bottom of each of the two connecting plates (306) through the spring; a plurality of evenly distributed levers (308) are installed at the bottom of one of the movable plates (307), and a plurality of miniature magnetic field probe assemblies (309) are installed at the bottom of the other movable plate (307).

2. The electromagnetic field distribution detection device for ferrite powder application according to claim 1, characterized in that, A shield (102) and a positioning ring (103) are respectively installed on the top of one side of the support plate (101); the positioning ring (103) is located above the shield (102), and a rotating detection cover (104) is rotatably installed on the inner side of the positioning ring (103).

3. The electromagnetic field distribution detection device for ferrite powder application according to claim 2, characterized in that, The top of the outer side of the rotating detection cover (104) is provided with a sawtooth structure; a servo motor is installed on the outer side of the support plate (101), and a gear is installed on the output end of the servo motor, which meshes with the sawtooth structure on the top of the outer side of the rotating detection cover (104).

4. The electromagnetic field distribution detection device for ferrite powder application according to claim 3, characterized in that, Three support plates (107) are installed on the outer side of the rotating ring (106); a vibrating sample magnetometer assembly (108), an induction heating assembly (109), and an impedance analyzer assembly (1010) are respectively installed on the side ends of the three support plates (107).

5. The electromagnetic field distribution detection device for ferrite powder application according to claim 1, characterized in that, The top outer side of the positioning base (1) is equipped with a flow guide shroud (2); the bottom of the flow guide shroud (2) is a conical structure, and a spring is installed on the inner side of the flow guide shroud (2), and a sieve plate (201) is installed on the inner side of the flow guide shroud (2) through the spring; a servo motor is installed on the outer side of the flow guide shroud (2), and a rotating push plate (202) is installed on the output end of the servo motor.

6. The electromagnetic field distribution detection device for ferrite powder application according to claim 5, characterized in that, The outer side of the sieve plate (201) is rotatably installed on the outer side of the rotating push plate (202); the other outer side of the flow guide hood (2) is equipped with the flow guide hood (203); a baffle is installed on one side of the top of the flow guide hood (203), and a flow guide pipe (204) is installed at the bottom of the flow guide hood (203).

7. The electromagnetic field distribution detection device for ferrite powder application according to claim 6, characterized in that, A conveying pipe (303) is installed on the side end of the support bracket (301); a guide pipe (304) is installed on the outside of the conveying pipe (303), and the conveying pipe (303) and the guide pipe (304) are respectively movably installed at the bottom of the guide cover (2) and the guide pipe (204).

8. The electromagnetic field distribution detection device for ferrite powder application according to claim 7, characterized in that, Guide slide rods (3010) are installed on the top of both movable plates (307); the top of the guide slide rods (3010) passes through the sliding connecting horizontal plate (306) and is fitted with a force plate (3011).

9. The electromagnetic field distribution detection device for ferrite powder application according to claim 8, characterized in that, A drive cylinder is installed on the outer bottom of the flow guide shroud (2), and a force plate (3012) is installed on the output end of the bottom of the drive cylinder. The force plate (3012) moves downward and is installed on the top of the force plate (3011).

10. A method for detecting electromagnetic field distribution in the application of ferrite powder as described in any one of claims 1 to 9, characterized in that, Includes the following steps: First, sample sieving pretreatment: place ferrite powder inside the sieve plate (201), start the servo motor to drive the rotating push plate (202) to the far end to push the sieve plate (201) to vibrate, remove large particles in the ferrite powder, and obtain test powder with uniform particle size. Second, sample feeding: the ferrite powder after sieving falls into the inner side of the rotating detection hood (104) through the first guide hood (2) and the conveying pipe (303), and the plant powder is sent into the inner side of the same rotating detection hood (104) through the second guide hood (203) and the first guide pipe (204) to complete the placement of the sample to be tested. Third, the sample is mixed evenly. Rotating the rotating ring 2 (3) drives the lever (308) to move above the rotating detection cover (104). The driving cylinder drives the force plate (3012) to press down the force plate (3011). Through the guide slide rod (3010), the bottom lever (308) of the movable plate (307) extends into the rotating detection cover (104). The servo motor drives the rotating detection cover (104) to rotate. The lever (308) stirs the ferrite powder and plant powder, and the two are mixed evenly. Fourth, magnetic field calibration and interference shielding: Rotate the rotating ring (106) to move the vibrating sample magnetometer assembly (108) between the rotating detection cover (104) and the shielding cover (102). The vibrating sample magnetometer assembly (108) calibrates the magnetic field strength of the detection area to eliminate the influence of the background magnetic field on the detection results. Fifth, simulate environmental heating treatment, and then rotate to move the induction heating component (109) to the bottom of the rotating detection cover (104). The sample inside the rotating detection cover (104) is heated by the induction heating component (109) to simulate the temperature of the plant powder processing environment. At the same time, the rotating detection cover (104) is kept rotating to ensure that the sample is heated evenly. Sixth, the electromagnetic field distribution is quantitatively detected. Then, the impedance analyzer assembly (1010) is rotated to move to the bottom of the rotating detection cover (104). The magnetic permeability test and electromagnetic field distribution quantitative detection of the mixed sample are performed by the impedance analyzer assembly (1010). The rotating ring II (3) is rotated to move the micro magnetic field probe assembly (309) above the rotating detection cover (104). The drive cylinder drives the micro magnetic field probe assembly (309) down to the sample surface to perform a full-coverage scan detection of the electromagnetic field intensity on the sample surface.

7. Data processing and result output: The magnetic field calibration data, heating parameters, quantitative detection data and surface scanning data are integrated and fitted, and the accurate detection results of the electromagnetic field distribution of ferrite powder are output through the operation display screen on the positioning base (1).

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