CN220171224U - Automatic measuring probe and device for three-dimensional magnetic field - Google Patents
Automatic measuring probe and device for three-dimensional magnetic field Download PDFInfo
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- CN220171224U CN220171224U CN202320640322.7U CN202320640322U CN220171224U CN 220171224 U CN220171224 U CN 220171224U CN 202320640322 U CN202320640322 U CN 202320640322U CN 220171224 U CN220171224 U CN 220171224U
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 79
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a three-dimensional magnetic field automatic measurement probe and a device, wherein the probe comprises: the probe comprises a probe mounting part, three Hall probes and a connecting piece; the probe mounting part is provided with three mounting positions which are perpendicular to each other, and three Hall probes are respectively mounted and fixed; a cavity is arranged in the probe mounting part, leads in the lead wire of the Hall probe through round holes arranged on each mounting position, and leads out from an outlet of the probe mounting part; an arc-shaped groove recessed into the outlet wall is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove; the connecting piece is an annular body, at least two curved bars with symmetrical circle centers are arranged on the inner side of the annular body, and the end parts of the curved bars are arc-shaped and are matched with the arc-shaped grooves. According to the utility model, three Hall probes are arranged on the probe, so that the measurement of the three-dimensional magnetic field is realized.
Description
Technical Field
The utility model relates to the field of magnetic field measurement, in particular to an automatic three-dimensional magnetic field measurement probe. The utility model also relates to a three-dimensional magnetic field automatic measuring device.
Background
The magnetic field is an important property of matter and is a vector field. The measurement of magnetic fields is one of the contents of magnetic measurement, and there are many measurement methods, such as fluxgate, hall effect, electromagnetic induction, magnetic deflection, and the like. In research and application of magnetic phenomenon, hall effect and its elements are indispensable, and it is visual, little interference, high sensitivity and obvious effect to observe magnetic field.
In the prior art, a commonly used magnetic field measuring instrument consists of a helmholtz coil and a hall element, and detects a magnetic field by using the hall effect. The magnetic field distribution of the energized circular coil and the Helmholtz coil.
The current hall magnetic field measurement experiment instrument has the problems: only one-dimensional magnetic induction can be measured.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a three-dimensional magnetic field automatic measurement probe. The utility model also relates to a three-dimensional magnetic field automatic measuring device.
The utility model provides a three-dimensional magnetic field automatic measurement probe, comprising: the probe comprises a probe mounting part, three Hall probes and a connecting piece;
the probe mounting part is provided with three mounting positions which are perpendicular to each other, and three Hall probes are respectively mounted and fixed;
a cavity is arranged in the probe mounting part, leads in the lead wire of the Hall probe through round holes arranged on each mounting position, and leads out from an outlet of the probe mounting part;
an arc-shaped groove recessed into the outlet wall is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove; the connecting piece is an annular body, at least two curved bars with symmetrical circle centers are arranged on the inner side of the annular body, and the end parts of the curved bars are arc-shaped and are matched with the arc-shaped grooves.
Optionally, a first arc protrusion is disposed on a side close to the probe mounting portion, and the first arc protrusion is matched with a second arc protrusion disposed at the outlet end.
The utility model also provides a three-dimensional magnetic field automatic measuring device, which comprises: the three-dimensional magnetic field automatic measuring probe and the three-dimensional motion base;
the three-dimensional motion base comprises a left-right stepping mechanism, a front-back stepping mechanism and an up-down stepping mechanism which are respectively used for left-right movement, front-back movement and up-down movement of the three-dimensional motion base;
the three-dimensional motion base is provided with the double coils.
Optionally, the left-right stepping mechanism, the front-back stepping mechanism and the up-down stepping mechanism are respectively connected with a motion controller, and the motion controller is connected with a terminal control device.
Optionally, the left-right stepping mechanism, the front-back stepping mechanism and the up-down stepping mechanism respectively and independently operate.
Optionally, the left-right stepping mechanism is arranged on a first guide rail, and the first guide rail is arranged on a second guide rail; the left stepping mechanism and the right stepping mechanism are arranged on the first guide rail, and the front stepping mechanism and the rear stepping mechanism are arranged on the first guide rail.
Optionally, the motion controller comprises a single chip microcomputer.
The utility model has the advantages and beneficial effects that:
the utility model provides a three-dimensional magnetic field automatic measurement probe, comprising: the probe comprises a probe mounting part, three Hall probes and a connecting piece; the probe mounting part is provided with three mounting positions which are perpendicular to each other, and three Hall probes are respectively mounted and fixed; a cavity is arranged in the probe mounting part, leads in the lead wire of the Hall probe through round holes arranged on each mounting position, and leads out from an outlet of the probe mounting part; an arc-shaped groove recessed into the outlet wall is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove; the connecting piece is an annular body, at least two curved bars with symmetrical circle centers are arranged on the inner side of the annular body, and the end parts of the curved bars are arc-shaped and are matched with the arc-shaped grooves. According to the utility model, three Hall probes are arranged on the probe, so that the measurement of the three-dimensional magnetic field is realized.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional magnetic field automatic measurement probe in accordance with the present utility model.
Fig. 2 is a front view of the three-dimensional magnetic field automatic measuring apparatus in the present utility model.
Fig. 3 is a side view of the three-dimensional magnetic field automatic measuring apparatus of the present utility model.
Fig. 4 is a rear view of the three-dimensional magnetic field automatic measuring apparatus of the present utility model.
Fig. 5 is a top view of the three-dimensional magnetic field automatic measuring apparatus of the present utility model.
FIG. 6 is a schematic diagram of the connection of the three-dimensional magnetic field automatic measuring device in the utility model.
FIG. 7 is a schematic diagram of the system structure of the three-dimensional magnetic field automatic measuring device in the utility model.
FIG. 8 is a schematic diagram of a control flow of the three-dimensional magnetic field automatic measuring device in the utility model.
Detailed Description
The present utility model is further described in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art may better understand the present utility model and practice it.
The following is a detailed description of the embodiments of the present utility model, but the present utility model may be implemented in other ways than those described herein, and those skilled in the art can implement the present utility model by different technical means under the guidance of the inventive concept, so that the present utility model is not limited by the specific embodiments described below.
The utility model provides a three-dimensional magnetic field automatic measurement probe, comprising: the probe comprises a probe mounting part, three Hall probes and a connecting piece; the probe mounting part is provided with three mounting positions which are perpendicular to each other, and three Hall probes are respectively mounted and fixed; a cavity is arranged in the probe mounting part, leads in the lead wire of the Hall probe through round holes arranged on each mounting position, and leads out from an outlet of the probe mounting part; an arc-shaped groove recessed into the outlet wall is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove; the connecting piece is an annular body, at least two curved bars with symmetrical circle centers are arranged on the inner side of the annular body, and the end parts of the curved bars are arc-shaped and are matched with the arc-shaped grooves. According to the utility model, three Hall probes are arranged on the probe, so that the measurement of the three-dimensional magnetic field is realized.
As shown in fig. 1, the present utility model performs three-dimensional magnetic field measurement using a three-dimensional magnetic field automatic measurement probe integrated with three hall probes 101, which are perpendicular to each other.
The three-dimensional magnetic field automatic measurement probe comprises a probe mounting part, three Hall probes 101 and a connecting piece 102. The probe mounting part is an upper part and a lower part, the upper part is a probe mounting position, and the lower part is a probe assembling position.
The probe mounting position is provided with three two-to-two perpendicular Hall probe mounting positions, and the mounting mode is as follows: the mounting position can be a mechanical card or the Hall probe can be adhered to the mounting position through an adhesive material.
Specifically, guide strips are arranged on the three mounting positions which are perpendicular to each other in pairs and are used for assisting in accurately mounting the Hall probe.
The lower part is a probe installation position, the installation position is an outlet 103 of the Hall probe wire, the outlet is barrel-shaped, an arc-shaped groove 104 recessed into the inner wall of the outlet is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove 104.
The probe mounting part is internally provided with a cavity, each mounting position of the cavity is provided with a round hole (not shown), the round holes are used for guiding in the Hall probe wires, and the wires are led out from the outlet.
The connecting piece is wholly cylindrical, be provided with the boss on the cylindrical lateral wall, be provided with first arc protruding 105 above the boss.
The upper part of the boss can be inserted into the outlet 103, at least two curved bars 107 with symmetrical circle centers are arranged on the inner side of the cylinder at the upper part of the boss, and the curved bars are provided with an arc shape and are tightly matched with the arc-shaped grooves.
The lower side of the outlet is provided with a second arc protrusion 106, and the second arc protrusion 106 is in close fit with the first arc protrusion 105.
When the connection is performed, the probe mounting part and the connecting piece are directly inserted, the curved strip 107 has elasticity and is attached to the arc-shaped groove 104, and the connecting piece and the probe mounting part are assembled. Further, the first arc protrusion 105 and the second arc protrusion 106 cooperate to prevent the probe mounting part from rotating relative to the connector. Further, the probe mounting part can be selected by screwing, during which the first arc protrusion 105 and the second arc protrusion 106 are protruded to be more than the position, and still cooperate after the rotation is completed, so that the probe mounting part and the connecting piece are prevented from rotating relatively.
The utility model also provides a three-dimensional magnetic field automatic measuring device which comprises the three-dimensional magnetic field automatic measuring probe and a three-dimensional motion base.
As shown in fig. 2 to 8, the apparatus includes: the three-dimensional magnetic field automatic measuring probe 1, the electromagnetic coil 21, the aluminum alloy guide rail 22, the X-axis moving slide block 31, the Y-axis moving slide block 32, the Z-axis moving slide block 33, the X-axis 34 and the Y-axis 35; a Z-axis 36, a stepping motor driver 37, an X-axis stepping motor 38, a Y-axis stepping motor 39, a Z-axis stepping motor 310, a supporting frame 311, a lifting platform 312, an X-axis opening synchronous belt 313, a Y-axis opening synchronous belt 314, a Z-axis screw 315, a Y-axis optical axis fixing frame 316 and a computer 4.
The electromagnetic coil 21 is installed on two parallel aluminum alloy guide rails 22, the aluminum alloy guide rails 22 are fixed on a lifting platform 312, and the lifting platform 312 and the supporting frame 311 are connected by a Z-axis moving sliding block 33.
The Z-axis screw 315 and the Z-axis 36 are both mounted on the left and right sides of the device, and the Z-axis moving slider 33 is fixed on the Z-axis screw 315 and can move along the Z-axis 36 under the rotation of the Z-axis stepping motor 310 and the transmission of the Z-axis screw.
The four corners of the upper surface of the supporting frame 311 are respectively provided with a Y-axis fixing frame 316, and the Y-axis 35 is respectively fixed through a round hole at the lower end of the Y-axis fixing frame 316.
The Y-axis stepper motor 39 is mounted on the left side of the upper surface of the support frame 311 near the back plate. The Y-axis moving slider 32 is penetrated by the Y-axis 35, and moves along the Y-axis 35 by the rotation of the Y-axis stepping motor 39 and the traction of the Y-axis opening timing belt 314.
The two X-ray axes 34 are fixed by circular holes on the left and right Y-axis moving sliders 32, respectively. The X-axis stepper motor 38 is mounted right above the right Y-axis moving slide 32, and two X-optical axes 34 penetrate the X-axis moving slide 31, and the X-axis moving slide 31 can move along the X-optical axes under the rotation of the X-axis stepper motor 38 and the traction of the X-axis opening timing belt 313.
The three-dimensional magnetic field automatic measuring probe 1 is arranged right below the X-axis moving slide block 31, and the stepping motor driver 37 and the Z-axis stepping motor 310 are both fixed on the back plate of the supporting frame 311.
The electromagnetic coil includes: a pair of coaxial parallel circular coils 21 with the same number of turns and radius are fixed on the aluminum alloy guide rail 22, and the center-to-center distance of the circular coils can be flexibly adjusted within the range of 35-500 mm through the aluminum alloy guide rail 22.
The three-dimensional space magnetic field generated by the electromagnetic coil comprises: a pair of circular coils can be respectively electrified with the same-direction current or reverse current to generate different needed three-dimensional space magnetic field distribution by changing the exciting current, the coil center distance and the coil wiring mode.
The three-dimensional transmission device comprises: the stepping motor driver 37, the X-axis stepping motor 38, the Y-axis stepping motor 39, the Z-axis stepping motor 310, the X-axis moving slider 31, the Y-axis moving slider 32, the Z-axis moving slider 33, the X-axis 34, the Y-axis 35, the Z-axis 36, the support frame 311, the lift table 312, the X-axis opening timing belt 313, the Y-axis opening timing belt 314, the Z-axis screw 315, and the Y-axis fixing frame 316.
In the utility model, the transmission systems in the three directions X, Y, Z are relatively independent, and the motion controller receives the signal of the singlechip and activates the stepping motor to operate.
In the utility model, the rotation of the X-axis stepping motor 38 and the Y-axis stepping motor 39 drives the X-axis opening synchronous belt 313 and the Y-axis opening synchronous belt 314, and the three-dimensional magnetic field automatic measuring probe 1 can realize the stable movement in the X, Y direction by utilizing the X-axis moving slide block 31 and the Y-axis moving slide block 32 under the drive of the X-axis opening synchronous belt 313 and the Y-axis opening synchronous belt 314.
The Z-axis stepper motor 310 rotates to drive the Z-axis screw 315, and the lifting platform 312 can realize stable movement in the Z direction by utilizing the Z-axis moving sliding block 33 under the drive of the Z-axis screw 315, so that the three-dimensional magnetic field automatic measurement probe 1 can be rapidly and accurately positioned in the X, Y, Z directions.
The three-dimensional magnetic field automatic measurement probe comprises: the three-dimensional magnetic field automatic measuring probe 1 and a linear integrated Hall sensor, wherein the model of the linear integrated Hall sensor is SS495A.
The linear integrated Hall sensors with the same performance parameters are fixed on three mutually orthogonal surfaces at the front end of the probe 1 to form a three-dimensional magnetic field automatic measurement probe, so that the magnetic induction intensity Bx, by and Bz component values in three directions of X, Y, Z can be measured simultaneously.
The control and data acquisition processing system taking the singlechip as a core comprises: the system comprises an A/D conversion circuit, a computer 4, a software operating system and a singlechip, wherein the model of the singlechip can be ATmega2560.
The software operating system independently written by utilizing the MATLAB GUI can realize the functions of automatically measuring the measuring range of the probe for measuring the three-dimensional magnetic field, measuring the stepping and setting and inputting relevant parameters of a motor, displaying and outputting the spatial position coordinates of the probe and the corresponding three-dimensional magnetic induction intensity measuring result in real time, simulating and visually displaying the three-dimensional magnetic induction intensity vector distribution map in real time, guiding out experimental measuring data by one key and the like under different measuring modes.
Specifically, the singlechip is a core control part of a control and data acquisition and processing system, controls the motion of the three-dimensional transmission system and realizes the real-time acquisition and processing of measurement data.
The singlechip receives an instruction input from a software operation interface of the computer end 4 and sends a pulse to the stepping motor driver 37, the stepping motor driver 37 drives the X, Y two-axis stepping motor 38 and the stepping motor 39 to rotate, and the X, Y two-axis opening synchronous belt 313, the opening synchronous belt 314, the X, Y-axis moving slide block 31 and the moving slide block 32 are utilized to realize stable movement of the three-dimensional magnetic field automatic measuring probe in the X, Y direction.
The Z-axis stepper motor 310 is driven by the stepper motor driver 37, and the Z-axis screw 315 and the Z-axis moving sliding block 33 are utilized to realize stable movement of the lifting platform 312 in the Z direction, so that the three-dimensional magnetic field automatic measurement probe 1 is finally rapidly and accurately positioned in the X, Y, Z directions.
And converting the Bx, by and Bz measured By the three-dimensional magnetic field automatic measurement probe 1, the total magnetic induction intensity B measurement result and the position coordinates (x, y and z) into digital signals through an A/D conversion circuit, storing the digital signals in a singlechip, transmitting the digital signals to a computer end 4MATLAB software operation interface through a USB connection line, and displaying the position coordinates (x, y and z) of the three-dimensional magnetic field automatic measurement probe and the corresponding Bx, by and Bz and the total magnetic induction intensity B magnetic field measurement result in real time.
Further, a one-dimensional curve of the magnetic induction intensity Bx-x recorded in real time and a three-dimensional magnetic field distribution of the magnetic induction intensity B-xy are intuitively presented on the interface of the computer 4. In addition, the measurement result can be derived into an Excel form by one key, so that further data processing analysis in the later period is facilitated.
The implementation steps of the three-dimensional magnetic field automatic measuring device provided by the utility model are as follows:
1. before the power is connected, instrument wiring and cable connection are carried out, the instrument is connected to the computer 4 end by utilizing a USB data wire, the connection of the three-dimensional magnetic field automatic measuring probe 1 is confirmed to be inserted into a rear panel interface of the circuit box, and the connection condition is checked;
2. the distance between the centers of the two electromagnetic coils 21 is adjusted by using the aluminum alloy guide rail 22 so as to achieve the required coil center distance;
3. connecting the ac power cord to a 3-terminal 220 volt ac power outlet or adapter that meets national relevant safety standards and is well grounded;
4. preheating the device for 10-15 minutes in advance before starting an experiment;
5. clicking a software interface of the computer 4, opening a serial port key, clicking a related button, and outputting current coordinate data;
6. an automatic measurement mode is selected on a software interface of the computer 4, a starting coordinate of the automatic measurement mode is set, and measurement ranges and step intervals of three coordinate axes are specified.
The click magnetic field automatic measurement key is controlled by the singlechip to enable the X-axis stepping motor 38, the Y-axis stepping motor 39 and the Z-axis stepping motor 310 to rotate through the motion controller and each axis stepping motor driver 37, and simultaneously under the traction action of the X-axis opening synchronous belt 313, the Y-axis opening synchronous belt 314 and the Z-axis lead screw 315, the X-axis moving slide block 31, the Y-axis moving slide block 32 and the Z-axis moving slide block 33 can move along each axis optical axis: the X-optical axis 34, the Y-optical axis 35 and the Z-optical axis 36 slide rapidly, so that the three-dimensional magnetic field automatic measurement probe 1 is positioned rapidly and accurately.
And then the magnetic induction intensity of the three-dimensional space where the automatic measurement probe 1 for measuring the three-dimensional magnetic field is located can be automatically measured in a certain space range through automatic scanning of different heights and different positions.
7. And selecting a fixed-point measurement mode on a software interface of the computer 4, clicking a fixed-point measurement switch key, and similarly, after the quick and accurate positioning of the probe is realized, carrying out fixed-point measurement on the magnetic induction intensity of the three-dimensional space where the three-dimensional magnetic field automatic measurement probe 1 is positioned.
8. In the experimental process, abnormal conditions appear, and the external power supply is disconnected rapidly.
The embodiment of the utility model generates the required three-dimensional space magnetic field distribution through the electromagnetic coil system, and coordinates the work among the three-dimensional magnetic field automatic measurement probe and the three-dimensional transmission system by using the control and data acquisition processing system with the singlechip as a core, thereby realizing automatic control and real-time data acquisition processing and output, and better solving the problems of the Hall effect experimental instrument used in the current university physical experiment teaching: the method has the advantages that the method can only manually adjust measurement data, can only measure one-dimensional magnetic induction intensity, has large measurement error of manually recorded data, complex experiment operation, low experiment precision and the like, and is beneficial to helping students grasp the Hall effect principle and the magnetic field superposition principle more clearly and symbolically.
Claims (7)
1. A three-dimensional magnetic field automatic measurement probe, comprising: the probe comprises a probe mounting part, three Hall probes and a connecting piece;
the probe mounting part is provided with three mounting positions which are perpendicular to each other, and three Hall probes are respectively mounted and fixed;
a cavity is arranged in the probe mounting part, leads in the lead wire of the Hall probe through round holes arranged on each mounting position, and leads out from an outlet of the probe mounting part;
an arc-shaped groove recessed into the outlet wall is formed in the outlet, and at least one blocking diameter is arranged on the arc-shaped groove; the connecting piece is an annular body, at least two curved bars with symmetrical circle centers are arranged on the inner side of the annular body, and the end parts of the curved bars are arc-shaped and are matched with the arc-shaped grooves.
2. The automatic magnetic field measuring probe of claim 1, wherein a side adjacent to the probe mounting portion is provided with uniformly distributed first arcuate projections which mate with second arcuate projections provided at the outlet end.
3. A three-dimensional magnetic field automatic measuring device, comprising: the three-dimensional magnetic field automatic measurement probe and three-dimensional motion base of claim 1 or 2;
the three-dimensional motion base comprises a left-right stepping mechanism, a front-back stepping mechanism and an up-down stepping mechanism which are respectively used for left-right movement, front-back movement and up-down movement of the three-dimensional motion base;
the three-dimensional motion base is provided with double coils.
4. The apparatus according to claim 3, wherein the left and right stepping mechanisms, the front and rear stepping mechanisms, and the up and down stepping mechanisms are respectively connected to a motion controller, which is connected to a terminal control device.
5. The apparatus according to claim 3, wherein the left and right stepping mechanisms, the front and rear stepping mechanisms and the up and down stepping mechanisms are operated individually.
6. The apparatus according to claim 3, wherein the left-right stepping mechanism is provided on a first rail provided on a second rail; the left stepping mechanism and the right stepping mechanism are arranged on the first guide rail, and the front stepping mechanism and the rear stepping mechanism are arranged on the first guide rail.
7. The apparatus of claim 4, wherein the motion controller comprises a single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320640322.7U CN220171224U (en) | 2023-03-28 | 2023-03-28 | Automatic measuring probe and device for three-dimensional magnetic field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320640322.7U CN220171224U (en) | 2023-03-28 | 2023-03-28 | Automatic measuring probe and device for three-dimensional magnetic field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118161756A (en) * | 2024-04-23 | 2024-06-11 | 南京华伟医疗设备有限公司 | Focusing alternating magnetic field therapeutic instrument |
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2023
- 2023-03-28 CN CN202320640322.7U patent/CN220171224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118161756A (en) * | 2024-04-23 | 2024-06-11 | 南京华伟医疗设备有限公司 | Focusing alternating magnetic field therapeutic instrument |
| CN118161756B (en) * | 2024-04-23 | 2024-09-06 | 南京华伟医疗设备有限公司 | Focusing alternating magnetic field therapeutic instrument |
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