CN104198964B - Measurement device for magnetic field distribution of superconducting magnet - Google Patents
Measurement device for magnetic field distribution of superconducting magnet Download PDFInfo
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- CN104198964B CN104198964B CN201410445319.5A CN201410445319A CN104198964B CN 104198964 B CN104198964 B CN 104198964B CN 201410445319 A CN201410445319 A CN 201410445319A CN 104198964 B CN104198964 B CN 104198964B
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- magnetic field
- slide block
- workbench
- handwheel
- superconducting magnet
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a measurement device for the magnetic field distribution of a superconducting magnet. According to the measurement device, the centre of a large gear is holed, and the large gear is installed on a workbench through a bearing; a first support is fixed on the workbench, and the both ends of a pinion are fixed with the workbench and the first support through bearings respectively; a first hand wheel is connected with the pinion; a guide rail is fixed on the large gear, and a slide block is installed on the guide rail; a second support is fixed on the slide block; a screw penetrates through a drive plate and is in threaded connection with the drive plate, the screw is vertical to the workbench, and the both ends of the screw are fixed with the slide block and the second support through bearings respectively; a fixing rod penetrates through the central hole of the large gear and the workbench, and is vertical to the workbench, and one end thereof is fixed on the drive plate; a gauss meter is installed at the other end of the fixing rod; the moving track of the fixing rod is capable of traversing the central hole of the large gear through rotating the first hand wheel and moving the slide block. The measurement device disclosed by the invention is capable of measuring the magnetic fields of all positions in the superconducting magnet, and carrying out high-accuracy control on the measured magnetic field positions.
Description
Technical field
The invention belongs to magnetic field measurement technology field, more particularly, to a kind of superconducting magnet Distribution of Magnetic Field measurement apparatus.
Background technology
After entering 21 century, the research and development of controlled thermonuclear fusion is closely coupled with world energy sources crisis, and controlled heat
The auxiliary heater meanses of nuclear fusion are mainly Electron Cyclotron Resonance Heating (Electron Cyclotron Resonance
Heating, ECRH), wherein superconducting magnet is the core component of ECRH system.In ECRH system, for making system worked well, remove
Stable high voltage power supply need to be provided outer in addition it is also necessary to superconducting magnet provides specific Distribution of Magnetic Field.Therefore, in order to ensure gyrotron exists
Normal work under specific stable frequency, needs accurate Measurement of Superconducting Magnet magnetic field.
Existing magnetic field measuring device is bulky, can only realize the magnetic-field measurement in a direction, and magnetic field cannot be made to survey
Amount device and magnetic field center inregister.Further, since motor has ferromagnetism, magnetic field is affected, particularly strong in magnetic field
When spending larger, motor or even cisco unity malfunction under the interference in magnetic field, lead to the measurement in magnetic field extremely difficult.
Content of the invention
Disadvantages described above for prior art or Improvement requirement, the invention provides a kind of measurement of superconducting magnet Distribution of Magnetic Field
Device, is capable of the magnetic field of the internal all positions of Measurement of Superconducting Magnet, and can carry out high accuracy control to the magnetic field position of measurement, this
Outward, measurement apparatus are simple and compact for structure, do not interfere with each other between small volume, and magnetic field, and its geometric center and magnetic field center are easily achieved
Accurate coincidence, certainty of measurement is high.
For achieving the above object, the invention provides a kind of superconducting magnet Distribution of Magnetic Field measurement apparatus are it is characterised in that wrap
Include workbench, gear wheel, little gear, guide rail, slide block, fix bar, driving plate, screw rod, the first handwheel, the second handwheel, Gaussmeter,
First support and second support；The center drilling of described gear wheel, is arranged on described workbench by bearing；Described first
Frame is fixed on described workbench, and the two ends of described little gear pass through bearing and described workbench respectively and described first support is solid
Fixed；Described first handwheel is connected with described little gear, by rotating described first handwheel, can drive described pinion rotation, enter
And drive described bull gear drive；Described guide rail is fixed on described gear wheel, and described slide block is arranged on described guide rail, can edge
Described slide；Described second support is fixed on described slide block；Described screw rod passes through described driving plate and described driving plate
It is threaded connection, perpendicular to described workbench, bearing and described slide block and described second are passed through in its two ends to described screw rod respectively
Support is fixed；Described fix bar passes through the center drilling of described gear wheel and described workbench, perpendicular to described workbench, one
End is fixed in described driving plate；Described Gaussmeter is arranged on the other end of described fix bar；By mobile described slide block, can make
The motion track of described fix bar passes through the center of described gear wheel；By rotating described first handwheel and mobile described slide block,
The center drilling of the motion track described gear wheel of traversal of described fix bar can be made；Described second handwheel is connected with described screw rod,
By rotating described second handwheel, described screw rod can be driven to rotate, and then drive described driving plate to move up and down.
Preferably, described slide block is provided with spacing hole, and described fix bar passes through this spacing hole.
Preferably, described guide rail is provided with limit track, and described fix bar passes through this limit track.
Preferably, described fix bar runs through described driving plate, and it is provided with screwed hole near one end of described driving plate, is used as
Described fix bar and the connectivity port of Outer elongate bar, can lengthen described fix bar.
Preferably, described second support includes the side plate with described table vertical, and described side plate is marked with size scale；
Described guide rail is marked with size scale；Described gear wheel is marked with angle index.
Preferably, described first handwheel is marked with angle index.
Preferably, described second handwheel is marked with angle index.
In general, by the contemplated above technical scheme of the present invention compared with prior art, there is following beneficial effect
Really：
1st, Gaussmeter can move in tri- directions of θ, R and Z, is capable of the magnetic field of the internal all positions of Measurement of Superconducting Magnet, and
High accuracy control can be carried out to the magnetic field position of measurement.
2nd, Gaussmeter is rotated a circle in magnetic field, measure magnetic field center and the deviation at measurement apparatus center, to measurement dress
The center of putting carries out fine adjustment, can make the geometric center of measurement apparatus and the accurate coincidence of magnetic field center, and certainty of measurement is high.
3rd, without using motor, it does not interfere with each other between measurement apparatus and magnetic field.
4th, measurement apparatus are simple and compact for structure, small volume.
Brief description
Fig. 1 is the axonometric chart of the superconducting magnet Distribution of Magnetic Field measurement apparatus of the embodiment of the present invention；
Fig. 2 is the front view of the superconducting magnet Distribution of Magnetic Field measurement apparatus of the embodiment of the present invention；
Fig. 3 is the assembly relation schematic diagram in θ direction；
Fig. 4 is the assembly relation schematic diagram in R direction.
In all of the figs, identical reference is used for representing identical element or structure, wherein：1- second handwheel,
2- top board, 3- screw rod, 4- screw, 5- driving plate, 6- side plate, 7- fix bar, 8- bearing, 9- support block, 10- screw, 11- canine tooth
Wheel, 12- workbench, 13- slide block, 14- guide rail, 15- Gaussmeter, 16- groove, 17- first support, 18- little gear, 19- first
Handwheel, 20,21,22- screws, 23- screwed hole, 25- screw.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.As long as additionally, involved technical characteristic in each embodiment of invention described below
The conflict of not constituting each other just can be mutually combined.
As shown in figures 1-4, the superconducting magnet Distribution of Magnetic Field measurement apparatus of the embodiment of the present invention include workbench 12, canine tooth
Wheel 11, little gear 18, guide rail 14, slide block 13, fix bar 7, driving plate 5, screw rod 3, the first handwheel 19, the second handwheel 1, Gaussmeter
15th, first support 17 and second support.The center drilling of gear wheel 11, is installed on table 12 by bearing；First support
17 pass through screw 20 fixes on table 12, and the two ends of little gear 18 pass through bearing and workbench 12 and first support 17 respectively
Fixing, the first handwheel 19 is connected with little gear 18, by rotating the first handwheel 19, little gear 18 can be driven to rotate, and then drives
Gear wheel 11 rotates.The two ends of guide rail 14 are placed in the support block 9 on gear wheel 11, and guide rail 14 and support block 9 pass through screw 21
It is fixed on gear wheel 11；Slide block 13 is arranged on guide rail 14, can slide along guide rail 14, and position on guide rail 14 for the slide block 13 leads to
Cross screw 10 fixing.
The top board 2 that second support includes two side plates 6 and connects two side plates 6.Two side plates 6 away from the one of top board 2
End is fixed on slide block 13 by screw 22, and two side plates 6 are parallel to each other and perpendicular to workbench 12；Top board 2 is parallel to work
Platform 12.In one embodiment of the invention, top board 2 is fixed on two side plates 6 by screw 25.Screw rod 3 passes through driving plate
5, it is threaded connection with driving plate 5, perpendicular to workbench 12, bearing and slide block 13 and top board 2 are passed through in its two ends to screw rod 3 respectively
Fixing.Fix bar 7 passes through center drilling and the workbench 12 of gear wheel 11, and perpendicular to workbench 12, its one end passes through screw 4
It is fixed in driving plate 5, Gaussmeter 15 is arranged in the groove 16 of the other end of fix bar 7.By mobile slide block 13, can make solid
The motion track of fixed pole 7 passes through the center of gear wheel 11；By rotating the first handwheel 19 and mobile slide block 13, fix bar 7 can be made
Motion track travel through gear wheel 11 center drilling.Second handwheel 1 is connected with screw rod 3, by rotating the second handwheel 1, can carry
Dynamic screw rod 3 rotates, and then drives driving plate 5 to move up and down, so that Gaussmeter 15 moves up and down.
Wherein, in two side plates 6, at least one of which is marked with size scale, and guide rail 14 is marked with size scale, canine tooth
Wheel 11 is marked with angle index.Little gear 18, gear wheel 11, screw rod 3, guide rail 14 and slide block 13 are by nonmagnetic substance pyrite system
Become, the interference to magnetic field can be prevented while keeping hardness.Bearing is ceramic material, to prevent from disturbing magnetic field.Remaining element
It is made up of duralumin.
The operation principle of above-mentioned superconducting magnet Distribution of Magnetic Field measurement apparatus is as follows：
Workbench 12 is placed in above magnetic field, Gaussmeter 15 is rotated a circle in magnetic field, measure magnetic field center and measurement
The deviation at device center, adjusts measurement apparatus center so as to overlap with magnetic field center precision.Adjust measurement apparatus, make Gaussmeter
15 move to reach different target locations in tri- directions of θ, R and Z, you can realize the magnetic field to superconducting magnet inside diverse location
Measurement.By the center drilling size of appropriate design gear wheel 11 and the length of fix bar 7, make Gaussmeter 15 in R and Z two
Direction has suitable range of activity, for example, when magnetic field environment is less in the coordinate in R direction, can be from gear wheel
The less measurement apparatus of heart perforate, when magnetic field environment is larger in the coordinate in R direction, can select the center drilling of gear wheel relatively
Big measurement apparatus.Gaussmeter 15 is enable to reach the optional position in magnetic field by said method, thus realizing to superconducting magnet
Distribution of Magnetic Field measurement.
Gaussmeter 15 is made to move in θ direction：Rotate the first handwheel 19, drive little gear 18 to rotate, and then drive gear wheel
11 rotations, adjustment Gaussmeter 15, in the position in θ direction, makes Gaussmeter 15 in θ direction arrival target location.Now, Gaussmeter 15
Constant in the position of R and Z-direction.Gear wheel 11 is marked with angle index, is easy to the rotational angle of gear wheel 11 is carried out accurately
Control.Preferably, the first handwheel 19 also indicates angle index it is known that the gear ratio of little gear 18 and gear wheel 11 and gear wheel
11 rotational angle, you can obtain the rotational angle of the first handwheel 19, is easy to improve governing speed.
Gaussmeter 15 is made to move in R direction：Mobile slide block 13, adjustment Gaussmeter 15, in the position in R direction, makes Gaussmeter 15
In R direction arrival target location, by screw 10, by slide block 13, the position on guide rail 14 is fixed.Now, Gaussmeter 15 in θ and
The position of Z-direction is constant.Guide rail 14 is marked with size scale, is easy to carry out precise control to the displacement of slide block 13.
Gaussmeter 15 is made to move in Z-direction：Rotate the second handwheel 1, drive screw rod 3 to rotate, and then drive driving plate about 5
Mobile, adjustment Gaussmeter 15, in the position of Z-direction, makes Gaussmeter 15 reach target location in Z-direction.Now, Gaussmeter in θ and
The position in R direction is constant.In two side plates 6, at least one is marked with size scale, be easy to the movement to driving plate 15 away from
From carrying out precise control.Preferably, the second handwheel 1 also indicates angle index it is known that the shifting of the pitch of screw rod 3 and driving plate 15
Dynamic distance, you can obtain the rotational angle of the second handwheel 1, is easy to improve governing speed.
Therefore, the superconducting magnet Distribution of Magnetic Field measurement apparatus of the present invention can to Gaussmeter tri- directions of θ, R and Z position
Put and be independently controlled, control flexibly and control accuracy is high.
For preventing when adjusting the height of driving plate 5, fix bar 7 produces and significantly swings, and affects height adjustment effect, needs
Fix bar 7 is carried out spacing.As shown in figure 1, in one embodiment of the invention, slide block 13 is provided with spacing hole, fix bar 7
Through this spacing hole.In another embodiment of the present invention, guide rail 14 is provided with limit track, and fix bar 7 passes through this spacing
Track.
In one embodiment of the invention, fix bar 7 runs through driving plate 5, and it is provided with screw thread near one end of driving plate 5
Hole 23, the connectivity port as fix bar 7 and Outer elongate bar, fix bar 7 can be lengthened, thus realizing larger to Z-direction coordinate
Magnetic field environment measurement.
As it will be easily appreciated by one skilled in the art that the foregoing is only presently preferred embodiments of the present invention, not in order to
Limit the present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc., all should comprise
Within protection scope of the present invention.
Claims (7)
1. a kind of superconducting magnet Distribution of Magnetic Field measurement apparatus it is characterised in that include workbench, gear wheel, little gear, guide rail,
Slide block, fix bar, driving plate, screw rod, the first handwheel, the second handwheel, Gaussmeter, first support and second support, described fixation
Bar passes through the center drilling of described gear wheel and described workbench, and perpendicular to described workbench, its one end is fixed on described driving
On plate；Described Gaussmeter is arranged on the other end of described fix bar；
The center drilling of described gear wheel, is arranged on described workbench by bearing；Described first support is fixed on described work
In station, the two ends of described little gear are fixed with described workbench and described first support by bearing respectively；Described first-hand
Wheel is connected with described little gear, by rotating described first handwheel, can drive described pinion rotation, and then drives described canine tooth
Wheel rotates；Described guide rail is fixed on described gear wheel, and described slide block is arranged on described guide rail, can be along described slide；
Described second support is fixed on described slide block；Described screw rod passes through described driving plate with described driving plate by screw thread even
Connect, described screw rod perpendicular to described workbench, fixed with described slide block and described second support by bearing respectively by its two ends；Logical
Cross and move described slide block, the motion track of described fix bar can be made to pass through the center of described gear wheel；By rotating described first
Handwheel and mobile described slide block, can make the motion track of described fix bar travel through the center drilling of described gear wheel；Described second
Handwheel is connected with described screw rod, by rotating described second handwheel, described screw rod can be driven to rotate, and then drive described driving plate
Move up and down.
2. superconducting magnet Distribution of Magnetic Field measurement apparatus as claimed in claim 1 it is characterised in that described slide block be provided with spacing
Hole, described fix bar passes through this spacing hole.
3. superconducting magnet Distribution of Magnetic Field measurement apparatus as claimed in claim 1 it is characterised in that described guide rail be provided with spacing
Track, described fix bar passes through this limit track.
4. superconducting magnet Distribution of Magnetic Field measurement apparatus as claimed any one in claims 1 to 3 are it is characterised in that described solid
Fixed pole runs through described driving plate, and it is provided with screwed hole near one end of described driving plate, as described fix bar and Outer elongate
The connectivity port of bar, can lengthen described fix bar.
5. superconducting magnet Distribution of Magnetic Field measurement apparatus as claimed in claim 1 it is characterised in that described second support include with
The side plate of described table vertical, described side plate is marked with size scale；Described guide rail is marked with size scale；Described gear wheel
It is marked with angle index.
6. superconducting magnet Distribution of Magnetic Field measurement apparatus as claimed in claim 5 are it is characterised in that described first handwheel is marked with
Angle index.
7. the superconducting magnet Distribution of Magnetic Field measurement apparatus as described in claim 5 or 6 are it is characterised in that on described second handwheel
Indicate angle index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445319.5A CN104198964B (en) | 2014-09-03 | 2014-09-03 | Measurement device for magnetic field distribution of superconducting magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445319.5A CN104198964B (en) | 2014-09-03 | 2014-09-03 | Measurement device for magnetic field distribution of superconducting magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104198964A CN104198964A (en) | 2014-12-10 |
| CN104198964B true CN104198964B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410445319.5A Expired - Fee Related CN104198964B (en) | 2014-09-03 | 2014-09-03 | Measurement device for magnetic field distribution of superconducting magnet |
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| CN (1) | CN104198964B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249179A (en) * | 2016-08-20 | 2016-12-21 | 湖南科技大学 | Automatically multiple degrees of freedom measurement of magnetic field laboratory table |
| CN106597325B (en) * | 2016-11-08 | 2023-06-20 | 中国科学院近代物理研究所 | Dynamic measuring device and measuring method for superconducting magnet at low temperature |
| CN116736113B (en) * | 2023-07-21 | 2024-02-02 | 华北电力大学（保定） | Motor permanent magnet heating demagnetizing device capable of being monitored on line in real time |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0859240A1 (en) * | 1997-02-18 | 1998-08-19 | GEC-Marconi Limited | Magnet system for magnetic resonance imaging and spectroscopy |
| CN201322791Y (en) * | 2008-12-23 | 2009-10-07 | 中国科学院电工研究所 | Device for measuring magnetic field distribution of superconducting magnet |
| WO2013138942A1 (en) * | 2012-03-23 | 2013-09-26 | Pacific Rim Engineered Products (1987) Ltd. | Gear engagement mechanism for transmissions and related methods |
| CN103675723A (en) * | 2013-12-24 | 2014-03-26 | 上海子创镀膜技术有限公司 | Magnetic field measurement analysis system |
| CN103777155A (en) * | 2014-02-14 | 2014-05-07 | 奥泰医疗系统有限责任公司 | Positioning frame for superconducting magnet magnetic field measurement and superconducting magnet magnetic field measurement device |
-
2014
- 2014-09-03 CN CN201410445319.5A patent/CN104198964B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0859240A1 (en) * | 1997-02-18 | 1998-08-19 | GEC-Marconi Limited | Magnet system for magnetic resonance imaging and spectroscopy |
| CN201322791Y (en) * | 2008-12-23 | 2009-10-07 | 中国科学院电工研究所 | Device for measuring magnetic field distribution of superconducting magnet |
| WO2013138942A1 (en) * | 2012-03-23 | 2013-09-26 | Pacific Rim Engineered Products (1987) Ltd. | Gear engagement mechanism for transmissions and related methods |
| CN103675723A (en) * | 2013-12-24 | 2014-03-26 | 上海子创镀膜技术有限公司 | Magnetic field measurement analysis system |
| CN103777155A (en) * | 2014-02-14 | 2014-05-07 | 奥泰医疗系统有限责任公司 | Positioning frame for superconducting magnet magnetic field measurement and superconducting magnet magnetic field measurement device |
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| Publication number | Publication date |
|---|---|
| CN104198964A (en) | 2014-12-10 |
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Inventor after: Xia Donghui Inventor after: Sun Daolei Inventor after: Jiang Liqiu Inventor after: Wang Zhijiang Inventor before: Xia Donghui Inventor before: Sun Daolei Inventor before: Jiang Liqiu Inventor before: Wang Zhijiang |
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Granted publication date: 20170222 Termination date: 20210903 |