CN201387681Y - Helmholtz coil magnetic field measuring experimental apparatus - Google Patents
Helmholtz coil magnetic field measuring experimental apparatus Download PDFInfo
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- CN201387681Y CN201387681Y CN200820169617U CN200820169617U CN201387681Y CN 201387681 Y CN201387681 Y CN 201387681Y CN 200820169617 U CN200820169617 U CN 200820169617U CN 200820169617 U CN200820169617 U CN 200820169617U CN 201387681 Y CN201387681 Y CN 201387681Y
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Abstract
The utility model relates two Helmholtz coil magnetic field measuring experimental apparatuses, which comprises a test instrument and an experimental instrument, wherein the test instrument mainly comprises a teslameter and a coil driving source, the experimental instrument comprises a base guide rail, the base guide rail is arranged on a base sliding block, a height adjusting bracket and a coil fixed plate are arranged on the base sliding block, a long lead screw mechanism is installed on the height adjusting bracket, a short lead screw mechanism is installed on the long lead screw mechanism, and a Hall sensor is installed on the short lead screw mechanism. A Helmholtz coil is installed on the base sliding block through the coil fixed plate and can slide freely on the base guide rail. The Hall sensor can be conveniently and correctly positioned by adjusting a handle which is installed on the two lead screw mechanisms so as to read out the strength of the magnetic field at the point on the test instrument and to conveniently and correctly measure the distribution of the magnetic field of the Helmholtz coil.
Description
Technical field
The utility model relates to a kind of physics experiment teaching instrument that adopts Hall element to measure the Helmholtz coils Distribution of Magnetic Field, specifically relates to a kind of Helmholtz coils magnetic field measuring experimental provision.
Background technology
Helmholtz coils generally is the magnetic field that is used for producing designated volume and uniformity coefficient, and it is a kind of special case of magnetic field superposition.The research Magnetic Field in Helmholtz Loop distributes and tests the basic experiment that has become in the physics teaching.A lot of relevant therewith instruments used for education are arranged on the market now, as the applying date is that the Chinese patent 200720106451.9 on February 9th, 2007 discloses a kind of " three-dimensional Helmholtz coils magnetic field experiment instrument ", it comprises experiment main frame and the testing jig that is electrically connected with the experiment main frame, testing jig comprises base plate, one side of base plate is equipped with two supports that are wound with Helmholtz coils parallel to each other, the opposite side of base plate is equipped with the Y parallel with Helmholtz coils to guide rail, Y on guide rail cross-over connection X to guide rail, X is equipped with on guide rail and has Z to the left and right sides of guide rail slide block, Z is provided with slide block up and down to guide rail, be connected with the axis direction placed metal pipe along Helmholtz coils up and down on the slide block, one of the close Helmholtz coils of metal tube is equipped with Hall element.The utility model by mobile X to guide rail, left and right sides slide block, slide block changes the position of Hall element in three dimensions up and down; thereby can measure the three-dimensional magnetic induction density of Helmholtz coils, guarantee to obtain the comprehensive Magnetic Field in Helmholtz Loop regularity of distribution.
But there is following defective in this experimental apparatus:
1, coil and three-dimensional mechanism are placed on the two ends of base respectively, cause the whole mechanism of instrument huge, and two coils can't move simultaneously, cause measurement range limited.
2, X has only adopted draw-in groove structure to guide rail, Z to the travel mechanism of guide rail to guide rail, Y, lacks the screw body transmission, causes not only complicated operation, and can't determine accurately that the space a bit.
3, the measurement in magnetic field is not calibrated Hall voltage, can not directly show magnetic field intensity.The above-mentioned defective of existing instrument makes it be subjected to very big restriction in experiment measuring.
Summary of the invention
For in physics experiment teaching, deepen the understanding of student to Distribution of Magnetic Field, magnetic field superposition, reach by experimental phenomena intuitively and study in order to practise, and then the purpose of applying, the utility model provides a kind of Helmholtz coils magnetic field measuring experimental provision.
Above-mentioned technological deficiency of the present utility model is mainly solved by following technical proposals:
A kind of Helmholtz coils magnetic field measuring experimental provision, comprise experimental tester, experiment test frame, described experiment test frame comprises base rail and is located at two Helmholtz coilss that are parallel to each other on the base rail, the bidimensional travel mechanism of Hall element is installed, it is characterized in that described Helmholtz coils is installed on the base slide block of being located on the base rail, bidimensional travel mechanism all adopts screw mandrel to carry out transmission, wherein the long filament bar is provided with big handwheel and regulates, short screw mandrel is provided with small handwheel and regulates, and Hall element is located on the short lead rail slide block.
Long guideway links together by long filament masthead head and long filament bar, and the long filament bar links together by screw and big handwheel.By regulating big handwheel short screw body is moved around on the long filament linkage.
Short lead rail links together by long filament bar contiguous block and long filament bar, and short lead rail links together by short screw mandrel top and short screw mandrel, and short screw mandrel links together by screw and small handwheel.
The Hall element fixed mechanism links together by short screw mandrel contiguous block and short screw mandrel, and Hall element welds in the circuit board, and wiring board links together by screw and Hall element fixed mechanism.By regulating small handwheel the Hall element fixed mechanism is moved around on short screw body.
The Hall element fixed mechanism is used for fixing the wiring board that has welded Hall element.
On base rail, long guideway, short lead rail, be separately installed with graduated scale in addition, very easily the position of distance between the sense coil and Hall element.
Helmholtz coils is measured its Distribution of Magnetic Field as magnetic field generation device with Hall element in the Helmholtz coils magnetic field measuring experimental provision.Distribution of Magnetic Field in the time of can measuring the coil different spacing on the coil axis can also be verified the magnetic field superposition principle, and measures the bidimensional distribution in magnetic field.
The utility model comprises tester and experiment instrument, and tester mainly comprises: coil drive source, teslameter.Experiment instrument mainly comprises: base rail, bidimensional screw body, Hall element.The apparatus structure compactness can the qualitative observation experimental phenomena, can pass through the measurement instrument quantitative measurment again.
The novel beneficial effect of this use is:
1, coil and the overlapping placement of bidimensional screw body have reduced instrument size, and be more elegant in appearance.
2, base rail and slide block mechanism can make things convenient for the distance that changes accurately between the coil, can also expand more experiment content.
3, can accurately locate Hall element by the bidimensional screw body, screw mandrel adopts handwheel to regulate, and is simple to operation.
4, adopt teslameter to measure magnetic field intensity, directly perceived more, obvious.
Description of drawings
Fig. 1 is a kind of structural front view of the present utility model;
Fig. 2 is the side view of Fig. 1.
Embodiment
Below by example, and in conjunction with the accompanying drawings 1,2, the technical solution of the utility model is described in further detail.
A kind of Helmholtz coils magnetic field measuring experimental provision, it comprises the travel mechanism of base rail (1), base slide block (2), lock-screw (21), Helmholtz coils (6) (12) composition coil.Helmholtz coils (6) (12) is fixed on the base slide block (2), can go up at base rail (1) and slide, and it is fixing to pass through lock-screw (21).The upper end of base rail (1) is provided with base slide block (2), long filament linkage (4) and Helmholtz coils (6) and (12) are set above the base slide block (2), short screw body (14) is set above the long filament linkage (4), above the short screw body (14) Hall element (7) is set.
Long filament linkage (4) comprising: long guideway (20), long guideway slide block (17), long filament bar (18), long filament bar contiguous block (19), big handwheel (13).Short screw body couples together with long guideway (20) by long guideway slide block (17) and long filament bar contiguous block (19), by regulating big handwheel (13) short screw body is moved on the long filament linkage.
Short screw body (14) comprising: short lead rail (11), short lead rail slide block (8), short screw mandrel (9), short screw mandrel contiguous block (10), small handwheel (16); Hall element (7) fixed mechanism couples together with short lead rail (11) by short lead rail slide block (8) and short screw mandrel contiguous block (10), by regulating small handwheel (16) Hall element (7) fixed mechanism is upward moved at short screw body (14).
Hall element (7) is installed in the Hall element fixed mechanism (15), and Hall element fixed mechanism (15) links together by short lead rail slide block (8) and short screw body (14).
Base rail (1) adopts oat tail groove structure to be connected with base slide block (2), locks by lock screw (21) and lock screw top (22).
1, the Distribution of Magnetic Field on the measurement single coil X-axis line
Moving coil (6) makes the base slide block mark of coil (6) overlap with the center of base rail, rotating small handwheel is adjusted to Hall element on the X-axis of coil, Hall element and teslameter are coupled together, coil drive and coil (6) are coupled together, and be 0.50A with drive current adjustment, rotate big handwheel and make Hall element move to the other end, the numerical value of a teslameter of whenever mobile 2cm record, and the Distribution of Magnetic Field on the further analysis list coil X-axis from an end of long guideway.
2, the Distribution of Magnetic Field on the measurement single coil Y-axis
Moving coil (6) makes the base slide block mark of coil (6) overlap with the center of base rail, rotating big handwheel is adjusted to Hall element on the Y-axis line of coil, Hall element and teslameter are coupled together, coil drive and coil (6) are coupled together, and be 0.50A with drive current adjustment, rotating small handwheel makes Hall element move to the other end from an end of short lead rail, the numerical value of a teslameter of whenever mobile 0.5cm record, and the DISTRIBUTION OF MAGNETIC FIELD on the further analysis list coil Y-axis line.
3, checking magnetic field superposition principle
Difference moving coil (6) and coil (12), making the spacing of coil (6) and coil (12) is 10cm, rotating small handwheel is adjusted to Hall element on the X-axis line of coil, rotating big handwheel is in the middle of two coils Hall element, Hall element and teslameter are coupled together, the adjusting drive current is 0.50A, the numerical value of teslameter when writing down the independent energising of coil (6) and coil (12) respectively and switching on simultaneously, and the superposition principle in further analysis verification magnetic field.
4, the Distribution of Magnetic Field on the measurement Helmholtz coils X-axis
Difference moving coil (6) and coil (12), making the spacing of coil (6) and coil (12) is 10cm, rotating small handwheel is adjusted to Hall element on the X-axis of coil, Hall element and teslameter are coupled together, coil (6) and coil (12) be together in series receive on the coil drive, the adjusting drive current is 0.50A, rotating big handwheel makes Hall element move to the other end from an end of long guideway, whenever mobile 2cm writes down the numerical value of a teslameter, and further analyzes the Distribution of Magnetic Field on the Helmholtz coils X-axis.
5, the Distribution of Magnetic Field on the measurement Helmholtz coils Y-axis line
Difference moving coil (6) and coil (12), making the spacing of coil (6) and coil (12) is 10cm, rotating big handwheel is adjusted to Hall element on the Y-axis of coil, Hall element and teslameter are coupled together, coil (6) and coil (12) be together in series receive on the coil drive, the adjusting drive current is 0.50A, rotating small handwheel makes Hall element move to the other end from an end of short lead rail, whenever mobile 0.5cm writes down the numerical value of a teslameter, and further analyzes the Distribution of Magnetic Field on the Helmholtz coils Y-axis.
At last, should be pointed out that above example only is the more representational example of the utility model.Obviously, the utility model is not limited to above-mentioned example, can also much test.Any modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above example all should be thought to belong to protection domain of the present utility model.
Claims (7)
1, a kind of Helmholtz coils magnetic field measuring experimental provision, comprise experimental tester, the experiment test frame, described experiment test frame comprises base rail (1) and is located at two Helmholtz coilss that are parallel to each other (6) on the base rail (1), (12), the bidimensional travel mechanism of Hall element (7) is installed, it is characterized in that described Helmholtz coils (6) and (12) are installed on the base slide block of being located on the base rail (1) (2), bidimensional travel mechanism all adopts screw mandrel to carry out transmission, wherein long filament bar (18) is provided with big handwheel (13) and regulates, short screw mandrel (9) is provided with small handwheel (16) and regulates, and Hall element (7) is located on the short lead rail slide block (8).
2, Helmholtz coils magnetic field measuring experimental provision according to claim 1, it is characterized in that adopting oat tail groove structure at described base rail (1), base slide block (2), base slide block (2) is gone up and is linked together with coil stationary frame (5), height regulating frame (3) respectively by screw.
3, Helmholtz coils magnetic field measuring experimental provision according to claim 1, the long filament bar (18) that it is characterized in that described bidimensional travel mechanism is installed in the long guideway (20), long filament bar (18) is gone up and by screw thread long filament bar contiguous block (19) is installed, long filament bar contiguous block (19) links together by screw and long guideway slide block (17), and big handwheel (13) is installed in an end of long filament bar (18) by screw.
4, Helmholtz coils magnetic field measuring experimental provision according to claim 1, the short screw mandrel (9) that it is characterized in that described bidimensional travel mechanism is installed in the short lead rail (11), short screw mandrel (9) is gone up and by screw thread short screw mandrel contiguous block (10) is installed, short screw mandrel contiguous block (10) links together by screw and short lead rail slide block (8), and small handwheel (16) is installed in an end of short screw mandrel (9) by screw.
5, Helmholtz coils magnetic field measuring experimental provision according to claim 3 is characterized in that described long guideway (20) links together by long guideway slide block (17) and short lead rail (11).
6, Helmholtz coils magnetic field measuring experimental provision according to claim 1, it is characterized in that described Hall element (7) is installed in the Hall element fixed mechanism (15), Hall element fixed mechanism (15) links together by short lead rail slide block (8) and short screw mandrel (9).
7, Helmholtz coils magnetic field measuring experimental provision according to claim 1 is characterized in that described base rail (1), long guideway (20), short lead rail are provided with graduated scale respectively on (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820169617U CN201387681Y (en) | 2008-12-11 | 2008-12-11 | Helmholtz coil magnetic field measuring experimental apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820169617U CN201387681Y (en) | 2008-12-11 | 2008-12-11 | Helmholtz coil magnetic field measuring experimental apparatus |
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| CN201387681Y true CN201387681Y (en) | 2010-01-20 |
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| CN200820169617U Expired - Lifetime CN201387681Y (en) | 2008-12-11 | 2008-12-11 | Helmholtz coil magnetic field measuring experimental apparatus |
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Cited By (19)
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| CN101975932A (en) * | 2010-07-26 | 2011-02-16 | 香港脑泰科技有限公司 | Method and device for measuring three-dimensional magnetic field space distribution of transcranial magnetic stimulation coil |
| CN102542889A (en) * | 2012-02-16 | 2012-07-04 | 北京工商大学 | Demonstration device for magnetic field distribution of doubly electrified coils |
| CN103076576A (en) * | 2013-01-06 | 2013-05-01 | 山西省电力公司大同供电分公司 | Magnetic field intensity measuring device |
| CN103412270A (en) * | 2013-08-21 | 2013-11-27 | 北矿机电科技有限责任公司 | Portable permanent magnet magnetism detection device with adjustable magnetic field |
| CN103777158A (en) * | 2014-01-23 | 2014-05-07 | 江苏奥蓝工程玻璃有限公司 | Rotating cathode magnetic field homogeneity measuring device and test method |
| CN108154773A (en) * | 2018-02-02 | 2018-06-12 | 浙江大学城市学院 | A kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument |
| CN108344957A (en) * | 2018-03-01 | 2018-07-31 | 湖北第二师范学院 | A kind of novel magnetic field measuring instrument |
| CN108427082A (en) * | 2018-04-04 | 2018-08-21 | 西安聚能超导磁体科技有限公司 | One kind being used for major diameter Dipole superconducting magnetic body examination magnetic field devices |
| CN108564862A (en) * | 2018-04-19 | 2018-09-21 | 南阳理工学院 | Novel magnetic field drawing apparatus |
| CN109283119A (en) * | 2018-10-16 | 2019-01-29 | 北京信息科技大学 | A kind of oil liquid abrasive grain on-line monitoring inductance sensor testing stand |
| CN110082668A (en) * | 2019-05-23 | 2019-08-02 | 南京师范大学泰州学院 | A kind of component-fixing device for Helmholtz coil measurement of magnetic field |
| CN110596625A (en) * | 2019-07-22 | 2019-12-20 | 哈尔滨工程大学 | Optimal arrangement and calibration method for three-dimensional Helmholtz coil magnetic field |
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| CN111487522A (en) * | 2020-04-29 | 2020-08-04 | 江苏七维测试技术有限公司 | Hall sensor testing device for carrying IC tester |
| CN111487523A (en) * | 2020-04-29 | 2020-08-04 | 江苏七维测试技术有限公司 | Hall sensor testing method for carrying IC tester |
| CN112213677A (en) * | 2020-10-12 | 2021-01-12 | 湘潭大学 | Giant magnetoresistance sensor performance testing device |
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2008
- 2008-12-11 CN CN200820169617U patent/CN201387681Y/en not_active Expired - Lifetime
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| CN101975932A (en) * | 2010-07-26 | 2011-02-16 | 香港脑泰科技有限公司 | Method and device for measuring three-dimensional magnetic field space distribution of transcranial magnetic stimulation coil |
| CN101975932B (en) * | 2010-07-26 | 2013-04-03 | 香港脑泰科技有限公司 | Method and device for measuring three-dimensional magnetic field space distribution of transcranial magnetic stimulation coil |
| CN102542889A (en) * | 2012-02-16 | 2012-07-04 | 北京工商大学 | Demonstration device for magnetic field distribution of doubly electrified coils |
| CN102542889B (en) * | 2012-02-16 | 2013-11-13 | 北京工商大学 | Demonstration device for magnetic field distribution of doubly electrified coils |
| CN103076576A (en) * | 2013-01-06 | 2013-05-01 | 山西省电力公司大同供电分公司 | Magnetic field intensity measuring device |
| CN103412270A (en) * | 2013-08-21 | 2013-11-27 | 北矿机电科技有限责任公司 | Portable permanent magnet magnetism detection device with adjustable magnetic field |
| CN103777158A (en) * | 2014-01-23 | 2014-05-07 | 江苏奥蓝工程玻璃有限公司 | Rotating cathode magnetic field homogeneity measuring device and test method |
| CN103777158B (en) * | 2014-01-23 | 2017-07-28 | 江苏奥蓝工程玻璃有限公司 | Rotating cathode magnetic field homogeneity test equipment and method of testing |
| CN108154773A (en) * | 2018-02-02 | 2018-06-12 | 浙江大学城市学院 | A kind of novel and multifunctional solenoid internal magnetic field distribution measuring experiment instrument |
| CN108344957A (en) * | 2018-03-01 | 2018-07-31 | 湖北第二师范学院 | A kind of novel magnetic field measuring instrument |
| CN108344957B (en) * | 2018-03-01 | 2023-05-12 | 湖北第二师范学院 | Novel magnetic field measuring instrument |
| CN108427082A (en) * | 2018-04-04 | 2018-08-21 | 西安聚能超导磁体科技有限公司 | One kind being used for major diameter Dipole superconducting magnetic body examination magnetic field devices |
| CN108564862A (en) * | 2018-04-19 | 2018-09-21 | 南阳理工学院 | Novel magnetic field drawing apparatus |
| CN108564862B (en) * | 2018-04-19 | 2019-12-27 | 南阳理工学院 | Novel magnetic field plotter |
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| CN109283119B (en) * | 2018-10-16 | 2024-03-08 | 北京信息科技大学 | Oil abrasive particle on-line monitoring inductance sensor test bed |
| CN110082668A (en) * | 2019-05-23 | 2019-08-02 | 南京师范大学泰州学院 | A kind of component-fixing device for Helmholtz coil measurement of magnetic field |
| CN110082668B (en) * | 2019-05-23 | 2024-01-30 | 南京师范大学泰州学院 | Element fixing device for Helmholtz coil magnetic field test |
| CN110596625A (en) * | 2019-07-22 | 2019-12-20 | 哈尔滨工程大学 | Optimal arrangement and calibration method for three-dimensional Helmholtz coil magnetic field |
| CN110596625B (en) * | 2019-07-22 | 2021-07-16 | 哈尔滨工程大学 | Optimal arrangement and calibration method for three-dimensional Helmholtz coil magnetic field |
| CN110938545A (en) * | 2019-12-06 | 2020-03-31 | 周口师范学院 | Controllable biological incubator of magnetic field intensity |
| CN111487522B (en) * | 2020-04-29 | 2021-02-05 | 江苏七维测试技术有限公司 | Hall sensor testing device for carrying IC tester |
| CN111487523B (en) * | 2020-04-29 | 2021-04-06 | 江苏七维测试技术有限公司 | Hall sensor testing method for carrying IC tester |
| CN111487523A (en) * | 2020-04-29 | 2020-08-04 | 江苏七维测试技术有限公司 | Hall sensor testing method for carrying IC tester |
| CN111487522A (en) * | 2020-04-29 | 2020-08-04 | 江苏七维测试技术有限公司 | Hall sensor testing device for carrying IC tester |
| CN112213677A (en) * | 2020-10-12 | 2021-01-12 | 湘潭大学 | Giant magnetoresistance sensor performance testing device |
| CN113109202A (en) * | 2021-03-25 | 2021-07-13 | 北京交通大学 | Device and method for measuring magnetic liquid evaporation capacity under magnetic field temperature field coupling effect |
| CN115810303A (en) * | 2021-09-14 | 2023-03-17 | 南开大学 | Novel Faraday electromagnetic induction experiment device |
| CN116046424A (en) * | 2023-02-08 | 2023-05-02 | 西南交通大学 | Double-disc coil type electric suspension experimental device |
| CN116046424B (en) * | 2023-02-08 | 2023-06-13 | 西南交通大学 | Double-disc coil type electric suspension experimental device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20100120 |