Three-dimensional digital magnetic field measuring device

Abstract

The utility model discloses a three-dimensional digital magnetic field measuring device, which comprises a bottom plate, and a Hall sampling module, a coil module, a control processing module and a PC (Personal Computer) end which are arranged on the bottom plate. The coil module is used for providing a magnetic field after being electrified. The Hall sampling module comprises a supporting rod, a Hall element, a three-axis displacement assembly and a positioning detection assembly. The Hall element is installed at the moving end of the three-axis displacement assembly through a supporting rod and can be driven by the three-axis displacement assembly to move along three axes. And the control processing module is used for controlling the magnitude of the current provided for the coil module and receiving a voltage signal detected by the Hall element. According to the utility model, the positioning detection assembly is arranged on the three-axis displacement assembly, so that the axial movement distance of the Hall element relative to the coil module is collected in real time through the positioning detection assembly in the movement process of the Hall element, and the position of the Hall element is detected in real time through the processing of the PC end; and the recording efficiency of the position data of the Hall element is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the physical test technical field, concretely relates to a three -dimensional digitization magnetic field measuring device. BACKGROUND

[0002] The existing magnetic field measuring device adjusts the position of the Hall element relative to the coil, usually by manual adjustment, and records the position data by manually recording the scale on the slide rail. This method has the problem of low efficiency when multiple different positions of the Hall element need to be tested. Some magnetic field testers use a screw rod to adjust the position of the Hall element. This adjustment structure makes the position adjustment steps between the coil assembly and the Hall element multiple, and the operation is complicated, the movement is jammed, and the hand feeling is poor. SUMMARY

[0003] In order to make up for the deficiencies of the prior art, the utility model provides a three-dimensional digitization magnetic field measuring device to solve the technical problems of low efficiency of Hall element position data recording and complicated Hall element position adjustment steps.

[0004] To achieve the above purpose, the specific technical scheme of the utility model is as follows:

[0005] A three-dimensional digitization magnetic field measuring device, comprising a bottom plate, and a Hall sampling module, a coil module, a control processing module and a PC end arranged on the bottom plate. The coil module is used to provide a magnetic field after being powered.

[0006] The Hall sampling module comprises a support rod, a Hall element, a three-axis displacement assembly and a positioning detection assembly. The Hall element is installed on the moving end of the three-axis displacement assembly through the support rod and can move along three axes under the driving of the three-axis displacement assembly.

[0007] The positioning detection assembly can collect the axial movement distance of the Hall element relative to the coil module in real time, and process it through the PC end to realize real-time detection of the position of the Hall element.

[0008] The control processing module is used to control the size of the current provided to the coil module and receive the voltage signal detected by the Hall element.

[0009] Further, the three-axis displacement assembly comprises an X-axis guide rail, a Z-axis guide rail, a mounting slide and a Y-axis adjusting rod. The Z-axis guide rail is slidably connected to the X-axis guide rail. The Y-axis adjusting rod is slidably connected to the Z-axis guide rail through the mounting slide. The Y-axis adjusting rod is provided with a sliding block matched with the support rod. The support rod is fixed on the sliding block.

[0010] Further, the positioning detection assembly comprises a rotating wheel and a rotation sensor.

[0011] Further, the Z-axis guide rail is provided with a first middle scale.

[0012] Further, the coil module comprises a coil guide rail and a coil assembly.

[0013] Further, the coil assembly comprises two coil assemblies.

[0014] Further, the coil assembly comprises a coil frame and a coil winding fixed on the coil frame.

[0015] Further, the Z-axis guide rail is provided with a first locking screw for locking the position of the Z-axis guide rail when the Z-axis guide rail slides to any position of the X-axis guide rail.

[0016] Further, the coil winding has a circular structure.

[0017] Further, the coil winding has a triangular structure.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The positioning detection assembly is arranged on the three-axis displacement assembly, so that the axial movement distance of the Hall element relative to the coil module can be collected in real time during the movement of the Hall element through the positioning detection assembly, and the real-time detection of the position of the Hall element can be realized through the PC terminal processing, thereby improving the recording efficiency of the position data of the Hall element.

[0020] 2. The positioning detection assembly in the utility model converts the displacement distance of the mounting slide into the rotation angle data that the rotation sensor can detect through the cooperation of the rotating wheel touch plate, rubber ring and rotating wheel. The rotation sensor feeds back the rotation angle data obtained by detection to the PC end, processes the collected data, obtains the displacement data of the Hall element, and further obtains the position of the Hall element, thereby avoiding the card jam when moving due to the need to record the Hall element position data when adjusting the position of the Hall element.

[0021] 3. The utility model discloses a two sliding coil assemblies are arranged on the coil guide rail, and a second centering scale is arranged at the same time, so that the positions of the two coil assemblies can be adjusted, thereby eliminating the adjustment step of "zeroing and centering" of the Hall element, and the adjustment step is simple and clear. DRAWINGS

[0022] Figure 1 It is the overall structure schematic view of the utility model embodiment 1;

[0023] Figure 2 It is the structure schematic view of the three-axis displacement assembly and the coil module in the utility model embodiment 1;

[0024] Figure 3 It is the overall structure schematic view of the utility model embodiment 2;

[0025] Figure 4 It is the overall structure schematic view of the utility model embodiment 3.

[0026] Signs: 1, bottom plate;2, coil module;2-1, coil guide rail;2-2, coil frame;2-3, coil winding;3, junction box;4, control processing module;5, PC end;6, support rod;7, Hall element;8, three-axis displacement assembly;8-1, X-axis guide rail;8-2, Z-axis guide rail;8-3, mounting slide;8-4, Y-axis adjusting rod;9, positioning detection assembly;9-1, rotating wheel;9-2, rubber ring;9-3, rotation sensor;10, rotating wheel touch plate. DETAILED DESCRIPTION

[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model.

[0028] The utility model will be further described below in combination with the drawings.

[0029] Embodiment 1

[0030] As shown in Figure 1 and 2 , a three-dimensional digital magnetic field measuring device includes a base plate 1, and a Hall sampling module, a coil module 2, a junction box 3, a control processing module 4 and a PC end 5 arranged on the base plate 1. The coil module 2 is used to provide a magnetic field after being powered. The Hall sampling module includes a support rod 6, a Hall element 7, a three-axis displacement assembly 8 and a positioning detection assembly 9. The Hall element 7 is installed on the moving end of the three-axis displacement assembly 8 through the support rod 6, and can move along the X-axis, Y-axis and Z-axis directions under the driving of the three-axis displacement assembly 8. Among them, the X-axis direction is the horizontal direction, the Y-axis direction is the vertical direction, and the Z-axis direction is the direction close to or away from the coil module 2. The positioning detection assembly 9 can detect the position of the Hall element 7 in the Z-axis direction in real time. The control processing module 4 is used to control the size of the current provided to the coil module 2, and receive the voltage signal detected by the Hall element 7. The junction box 3 is used to realize the electrical lead connection between the Hall element 7, the coil module 2 and the control processing module 4.

[0031] As shown in Figure 2 , the three-axis displacement assembly 8 includes an X-axis guide rail 8-1, a Z-axis guide rail 8-2, a mounting slide 8-3 and a Y-axis adjusting rod 8-4. The Z-axis guide rail 8-2 is slidably connected to the X-axis guide rail 8-1. A first locking screw is arranged on the Z-axis guide rail 8-2. When the Z-axis guide rail 8-2 slides to the set position, the position of the Z-axis guide rail 8-2 on the X-axis guide rail 8-1 is locked by tightening the first locking screw. The Y-axis adjusting rod 8-4 is slidably connected to the Z-axis guide rail 8-2 through the mounting slide 8-3. A sliding block matched with the support rod 6 is arranged on the Y-axis adjusting rod 8-4. The support rod 6 is fixed on the sliding block. The sliding block is slidably connected to the Y-axis adjusting rod 8-4 and is provided with a second locking screw. The sliding block is locked when sliding to any position of the Y-axis adjusting rod 8-4 by the second locking screw. The positioning detection assembly 9 is installed on the mounting slide 8-3, which can detect the position of the mounting slide 8-3 on the Z-axis guide rail 8-2 in real time, and further detect the position of the Hall element 7.

[0032] In this embodiment, a first half-scale ruler is arranged on the Z-axis guide rail 8-2. In the initial state, the mounting slide 8-3 is located at the central position of the first half-scale ruler, thereby realizing the position zero of the Hall element 7.

[0033] As shown in Figure 1As shown, the positioning detection assembly 9 comprises a rotating wheel 9-1, a rubber ring 9-2 and a rotation sensor 9-3. The rotating wheel 9-1 is rotationally connected to the mounting slide 8-3 and the rotation angle thereof can be detected by the rotation sensor 9-3. The rubber ring 9-2 is fixed to the outer ring of the rotating wheel 9-1. A rotating wheel touch plate 10 is fixed to the Z-direction guide rail and cooperates with the rubber ring 9-2. The outer ring of the rubber ring 9-2 is in contact with the rotating wheel touch plate 10.

[0034] During the test, the tester moves the mounting slide 8-3 to move the Hall element 7 along the Z-axis direction. During the movement of the mounting slide 8-3, the outer ring rubber ring 9-2 of the rotating wheel 9-1 rotates in cooperation with the rotating wheel touch plate 10, thereby driving the rotating wheel 9-1 to rotate. Through the cooperation of the rotating wheel touch plate 10, the rubber ring 9-2 and the rotating wheel 9-1, the displacement distance of the mounting slide 8-3 is converted into the rotation angle data that can be detected by the rotation sensor 9-3. The rotation sensor 9-3 feeds back the detected rotation angle data to the PC end 5 and processes the collected data to obtain the displacement data of the Hall element 7, and further obtain the position of the Hall element 7.

[0035] As shown in Figure 2 The coil module 2 comprises a coil guide rail 2-1 and a coil assembly. The coil assembly is slidingly connected to the coil guide rail 2-1 and the sliding direction is the same as the sliding direction of the mounting slide 8-3 on the Z-direction guide rail.

[0036] In this embodiment, there are two coil assemblies, and both of them are slidingly connected to the coil guide rail 2-1. The coil assembly comprises a coil bracket 2-2 and a coil winding 2-3 fixed to the coil bracket 2-2. The coil bracket 2-2 is in sliding cooperation with the coil guide rail 2-1. The coil bracket 2-2 is provided with a third locking screw. The third locking screw can lock the position of the coil bracket 2-2 when it slides to a specified position.

[0037] Further, the coil guide rail 2-1 is provided with a second center scale. The two coil assemblies are symmetrically arranged on both sides of the second center scale.

[0038] In this embodiment, the rotation sensor 9-3 and the PC end 5 can be connected by USB cable or Bluetooth. The control processing module 4 and the PC end 5 are connected by cable.

[0039] In this embodiment, the coil winding 2-3 has a circular structure. The coil guide rail 2-1, the X-axis guide rail 8-1 and the Z-axis guide rail 8-2 all adopt industrial-grade linear guide rails.

[0040] Embodiment 2

[0041] As shown in Figure 3As shown, the difference between the embodiment and the embodiment 1 is that the coil assembly is provided with one.

[0042] Embodiment 3

[0043] As Figure 4 shown, the difference between the embodiment and the embodiment 2 is that the coil winding 2-3 in the embodiment is in a triangular structure.

[0044] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not limited to them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A three-dimensional digitized magnetic field measuring device, comprising a bottom plate (1), and a Hall sampling module, a coil module (2) and a PC end (5) arranged on the bottom plate (1); the coil module (2) is used to provide a magnetic field after being energized, characterized in that: Further comprising a control processing module (4), The Hall sampling module comprises a supporting rod (6), a Hall element (7), a three-axis displacement assembly (8) and a positioning detection assembly (9); the Hall element (7) is installed on the moving end of the three-axis displacement assembly (8) through the supporting rod (6) and can move along three axes under the driving of the three-axis displacement assembly (8); The positioning detection assembly (9) can collect the axial movement distance of the Hall element (7) relative to the coil module (2) in real time and process through the PC terminal (5), thereby realizing real-time detection of the position of the Hall element (7). The control processing module (4) is used for controlling the current size provided to the coil module (2) and receiving the voltage signal detected by the Hall element (7).

2. A three-dimensional digitizing magnetic field measuring device according to claim 1, wherein: The three-axis displacement assembly (8) comprises an X-axis guide rail (8-1), a Z-axis guide rail (8-2), a mounting sliding seat (8-3) and a Y-axis adjusting rod (8-4); the Z-axis guide rail (8-2) is slidably connected to the X-axis guide rail (8-1); the Y-axis adjusting rod (8-4) is slidably connected to the Z-axis guide rail (8-2) through the mounting sliding seat (8-3); a sliding block matched with the supporting rod (6) is arranged on the Y-axis adjusting rod (8-4); and the supporting rod (6) is fixed to the sliding block.

3. A three-dimensional digitizing magnetic field measuring device according to claim 2, wherein: The positioning detection assembly (9) comprises a rotating wheel (9-1) and a rotation sensor (9-3); the rotating wheel (9-1) is rotationally connected to the mounting sliding seat (8-3); a rotating wheel contact plate (10) matched with the rotating wheel (9-1) is arranged on the Z-axis guide rail (8-2) and can drive the rotating wheel (9-1) to rotate when the mounting sliding seat (8-3) slides; and the rotation sensor (9-3) is used for detecting and collecting the angle of rotation of the rotating wheel (9-1).

4. A three-dimensional digitizing magnetic field measuring device according to claim 2, wherein: A first middle scale is arranged on the Z-axis guide rail (8-2); and in the initial state, the mounting sliding seat (8-3) is located at the central position of the first middle scale.

5. A three-dimensional digitizing magnetic field measuring device according to claim 1, wherein: The coil module (2) comprises a coil guide rail (2-1) and a coil assembly; the coil assembly is slidably connected to the coil guide rail (2-1), thereby adjusting the distance between the coil assembly and the Hall element (7) and further completing the regulation and control of different magnetic field distributions.

6. A three-dimensional digitizing magnetic field measuring device according to claim 5, wherein: The coil assembly comprises a coil frame (2-2) and a coil winding (2-3) fixed to the coil frame (2-2); the coil frame (2-2) is in sliding fit with the coil guide rail (2-1); a third locking screw is arranged on the coil frame (2-2); and the third locking screw can lock the position of the coil frame (2-2) when the coil frame (2-2) slides to a specified position.

7. A three-dimensional digitizing magnetic field measuring device according to claim 5, wherein: There are two coil assemblies in total; and the two coil assemblies are symmetrically arranged on the coil guide rail (2-1).

8. A three-dimensional digitizing magnetic field measuring device according to claim 2, wherein: A first locking screw is arranged on the Z-axis guide rail (8-2) and used for realizing position locking when the Z-axis guide rail (8-2) slides to any position of the X-axis guide rail (8-1); and a second locking screw is arranged on the sliding block and used for realizing position locking when the sliding block slides to any position of the Y-axis adjusting rod (8-4).

9. A three-dimensional digitizing magnetic field measuring device according to claim 6, wherein: The coil winding (2-3) has a circular structure.

10. A three-dimensional digitizing magnetic field measuring device according to claim 6, wherein: The coil winding (2-3) has a triangular structure.

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