CN220324042U - Hall effect experimental instrument - Google Patents
Hall effect experimental instrument Download PDFInfo
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- CN220324042U CN220324042U CN202321773535.3U CN202321773535U CN220324042U CN 220324042 U CN220324042 U CN 220324042U CN 202321773535 U CN202321773535 U CN 202321773535U CN 220324042 U CN220324042 U CN 220324042U
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- dimensional adjustable
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- guide rail
- hall effect
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- 230000005355 Hall effect Effects 0.000 title claims abstract description 24
- 230000005284 excitation Effects 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 239000004065 semiconductor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The Hall effect experimental instrument comprises an experimental host, a two-dimensional adjustable device, a magnet assembly and a reversing device instrument, wherein the two-dimensional adjustable device comprises a guide rail assembly, a horizontal moving slide block is arranged on the guide rail assembly in a sliding manner, a vertical moving ruler is connected to the upper side of the horizontal moving slide block, and a two-dimensional adjustable assembly is arranged on the vertical moving ruler; the magnet assembly comprises a mounting block which is positioned on the guide rail assembly and slides, an electromagnet is arranged on the upper side of the mounting block, and an excitation coil is wound on the upper part of the electromagnet; the front side of the two-dimensional adjustable component is connected with a Hall element wiring terminal, and the front side of the two-dimensional adjustable component is connected with a Hall element. Compared with the prior art, the utility model has the advantages that: stabilizing the electromagnet to provide a magnetic field; the reversing switch with clear wiring and durable special materials is adopted; the functions of each module in the modularized and split design and experiment are clear; different experiments can be done in groups. The two-dimensional adjustable structure of the sliding block matched with the guide rail is adopted, the movement is stable and reliable, and the problem that the two-dimensional moving ruler is easy to damage is solved.
Description
Technical Field
The utility model relates to the technical field of Hall effect experimental instruments, in particular to a Hall effect experimental instrument.
Background
The hall effect is an effect in which an electric current in a conductive material interacts with an external magnetic field to generate an electromotive force between both end faces perpendicular to the magnetic field and the direction of the electric current. The hall effect was found by the university of hopkins university of united states in 1879 when studying metal conductive mechanisms. Later, magnetic sensors for measuring magnetic fields were made using the hall effect, but the hall effect of metal was too weak to be practically used. With the development of semiconductor materials and manufacturing processes, people use the semiconductor materials to manufacture Hall elements, and the Hall elements are practical and developed due to the remarkable Hall effect, and are widely used in the aspects of non-electric quantity detection, electric control, electromagnetic measurement, calculation devices and the like. Hall effect in electrofluids is also the theoretical basis of "magnetohydrodynamic generation" currently under investigation.
In research and application of magnetic phenomena such as magnetic field and magnetic circuit, hall effect and elements thereof are indispensable, and the detection of magnetic field by using the Hall effect and elements thereof is visual, has small interference, high sensitivity and obvious effect.
The function division of the existing Hall effect experimental instrument module is unclear, the structure is single, only one experiment can be aimed at, the two-dimensional structure is inconvenient to adjust, and the two-dimensional moving ruler is easy to damage.
Disclosure of Invention
The utility model provides a Hall effect experimental instrument, which comprises an experimental host, a two-dimensional adjustable device, a magnet assembly and a reversing device, wherein the two-dimensional adjustable device comprises a guide rail assembly, a horizontal moving slide block is arranged on the guide rail assembly in a sliding manner, a vertical moving ruler is connected to the upper side of the horizontal moving slide block, and a two-dimensional adjustable assembly is arranged on the vertical moving ruler;
the magnet assembly comprises a mounting block which is positioned on the guide rail assembly and slides, an electromagnet is arranged on the upper side of the mounting block, and an excitation coil is wound on the upper part of the electromagnet;
the front side of the two-dimensional adjustable assembly is connected with a Hall element wiring terminal, and one side, close to the mounting block, of the front side of the two-dimensional adjustable assembly is connected with a Hall element;
the reversing device instrument is provided with a Hall voltage interface, an exciting current interface, a working current interface and three groups of double-pole double-throw switches.
As an improvement: the experimental host panel is divided into three parts: excitation current module, hall current module and hall voltage module.
As an improvement: and a scale is arranged on the upper side of the guide rail assembly and below the horizontal movement sliding block.
As an improvement: two groups of exciting current input ends are arranged on the front side of the mounting block.
Compared with the prior art, the utility model has the advantages that:
1. stabilizing the electromagnet to provide a magnetic field;
2. the reversing switch with clear wiring and durable special materials is adopted.
3. The automatic circuit identification function is provided with a Hall piece and a voltmeter protection circuit; exciting current, working current of the sensor and a Hall voltage interface adopt sockets and special connecting wires with different specifications, so that wiring errors are eliminated, and damage to Hall pieces and equipment is prevented.
4. The functions of each module in the modularized and split design and experiment are clear; different experiments can be done in groups.
5. The two-dimensional adjustable structure of the sliding block matched with the guide rail is adopted, the movement is stable and reliable, and the problem that the two-dimensional moving ruler is easy to damage is solved.
Drawings
FIG. 1 is a schematic diagram of a two-dimensional adjustable device of a Hall effect experimental instrument according to the present utility model;
FIG. 2 is a schematic diagram of a reversing device of a Hall effect experimental apparatus according to the present utility model;
FIG. 3 is a schematic diagram of the experimental host structure of a Hall effect experimental instrument according to the present utility model;
reference numeral control table:
1. a guide rail assembly; 2. a ruler; 3. horizontally moving the slide block; 4. a vertical moving ruler; 5. a two-dimensional adjustable component; 6. hall element terminals; 7. a Hall element; 8. an electromagnet; 9. a mounting block; 10. an exciting coil; 11. a hall voltage interface; 12. an excitation current interface; 13. three groups of double-pole double-throw switches; 14. an operating current interface.
Detailed Description
Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.
1-3, a Hall effect experimental instrument comprises an experimental host, a two-dimensional adjustable device, a magnet assembly and a reversing device instrument, wherein the panel of the experimental host is divided into three parts: excitation current module, hall current module and hall voltage module.
Constant current of excitation power supply: the voltage is 0-24VDC, IM=0-1000 mA, the three-digit half digital ammeter shows that the voltage is continuously adjustable, and the minimum resolution is 0.1mA;
constant current of a working power supply of the Hall element: 0-10VDC, IS=0-10 mA, continuously adjustable, three-digit half-display;
the measuring range of the Hall voltage is divided into two steps, the minimum resolution is 0.1mV, a three-bit half digital millivoltmeter shows that the measuring range can be changed automatically by measuring the voltage value output by the Hall element under different experimental conditions, and the three-bit half shows that the measuring range is not needed to be shifted manually.
The automatic circuit identification function is provided with a Hall piece and a voltmeter protection circuit; exciting current, working current of the sensor and a Hall voltage interface adopt sockets and special connecting wires with different specifications, so that wiring errors are eliminated, and damage to Hall pieces and equipment is prevented.
The two-dimensional adjustable device comprises a guide rail assembly 1, a horizontal movement sliding block 3 is arranged on the guide rail assembly 1 in a sliding mode, a vertical movement ruler 4 is connected to the upper side of the horizontal movement sliding block 3, a two-dimensional adjustable assembly 5 is arranged on the vertical movement ruler 4 in a mounting mode, and the two-dimensional adjustable assembly 5 is arranged on the vertical movement ruler: 80X 40mm adopts the supporting slider two-dimensional adjustable structure of guide rail, removes reliably and stably, solves the fragile problem of two-dimensional movable ruler.
The magnet assembly comprises a mounting block 9 which is positioned on the guide rail assembly 1 and slides, an electromagnet 8 is arranged on the upper side of the mounting block 9, and an excitation coil 10 is wound on the upper part of the electromagnet 8;
the front side of the two-dimensional adjustable component 5 is connected with a Hall element wiring terminal 6, and the front side of the two-dimensional adjustable component 5 is connected with a Hall element 7, wherein the Hall element is as follows: the semiconductor device comprises a transverse four-terminal element, a gallium arsenide GaAs Hall sensor and an N-type semiconductor material. Operating current: 0-10.00 mA;
the guide rail assembly 1 upside and be located horizontal migration slider 3 below and be equipped with scale 2, the installation piece 9 front side is equipped with two sets of excitation current input.
The reversing device instrument is provided with a Hall voltage interface 11, an exciting current interface 12, a working current interface 14 and three groups of double-pole double-throw switches 13, and the reversing device instrument is modularized and independent and external with the double-pole double-throw switches 13: independent 3 groups; long service life, good contact and protection device.
In the practice of the present utility model,
and the experimental host is correctly connected with the reversing device according to the text and symbol prompts on the panel of the experimental host.
1. And respectively regulating the Hall current and the exciting current on the experimental host to the minimum.
2. The output end of the constant current source for providing exciting current IM is connected with the input end of the exciting current interface 12 on the reversing device instrument above the panel of the Hall effect experimental host.
3. The middle part of the experimental host panel Is provided with the constant current source output end for providing the working current Is of the Hall element and Is connected with the input end of the working current interface 14 of the reversing device instrument.
4. The Hall voltage output end of the reversing device is connected with the Hall voltage input end below the panel of the experimental host.
5. The reversing device instrument is connected with a 220V alternating current power supply, and a start key is pressed.
The above description is illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, but is to be accorded the full scope of the claims.
Claims (4)
1. The utility model provides a hall effect experiment appearance, includes experimental host computer, two-dimensional adjustable device, magnet subassembly and switching-over device appearance, its characterized in that:
the two-dimensional adjustable device comprises a guide rail assembly (1), wherein a horizontal moving sliding block (3) is arranged on the guide rail assembly (1) in a sliding manner, a vertical moving ruler (4) is connected to the upper side of the horizontal moving sliding block (3), and a two-dimensional adjustable assembly (5) is arranged on the vertical moving ruler (4);
the magnet assembly comprises a mounting block (9) which is positioned on the guide rail assembly (1) and slides, an electromagnet (8) is arranged on the upper side of the mounting block (9), and an excitation coil (10) is wound on the upper part of the electromagnet (8);
the front side of the two-dimensional adjustable component (5) is connected with a Hall element wiring terminal (6), and one side, close to the mounting block (9), of the front side of the two-dimensional adjustable component (5) is connected with a Hall element (7);
the reversing device instrument is provided with a Hall voltage interface (11), an exciting current interface (12), a working current interface (14) and three groups of double-pole double-throw switches (13).
2. A hall effect experimental instrument according to claim 1, wherein: the experimental host panel is divided into three parts: excitation current module, hall current module and hall voltage module.
3. A hall effect experimental instrument according to claim 1, wherein: the guide rail assembly (1) is arranged on the upper side and below the horizontal moving sliding block (3), and the scale (2) is arranged.
4. A hall effect experimental instrument according to claim 1, wherein: two groups of exciting current input ends are arranged on the front side of the mounting block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773535.3U CN220324042U (en) | 2023-07-07 | 2023-07-07 | Hall effect experimental instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321773535.3U CN220324042U (en) | 2023-07-07 | 2023-07-07 | Hall effect experimental instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220324042U true CN220324042U (en) | 2024-01-09 |
Family
ID=89422058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321773535.3U Active CN220324042U (en) | 2023-07-07 | 2023-07-07 | Hall effect experimental instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220324042U (en) |
-
2023
- 2023-07-07 CN CN202321773535.3U patent/CN220324042U/en active Active
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