CN202533569U - A trapped field measuring device of a block-shaped high-temperature superconductor - Google Patents
A trapped field measuring device of a block-shaped high-temperature superconductor Download PDFInfo
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- CN202533569U CN202533569U CN2011205373109U CN201120537310U CN202533569U CN 202533569 U CN202533569 U CN 202533569U CN 2011205373109 U CN2011205373109 U CN 2011205373109U CN 201120537310 U CN201120537310 U CN 201120537310U CN 202533569 U CN202533569 U CN 202533569U
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- precision ball
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Abstract
Provided is a trapped field measuring device of a block-shaped high-temperature superconductor. The trapped field measuring device comprises a machine rack, a vertically-moving mechanism, a two-dimensionally-and-horizontally-moving mechanism, a driving and data sampling system, a low temperature sample container, and a Hall element. The Hall element is fixed on the vertically-moving mechanism which is fixed on the machine rack. The low temperature sample container is fixed on the two-dimensionally-and-horizontally-moving mechanism which is fixed on the machine rack and located below the vertically-moving mechanism. The vertically-moving mechanism and the two-dimensionally-and-horizontally-moving mechanism are connected with the driving and data sampling system.
Description
Technical field
The utility model relates to a kind of block high-temperature superconductor magnetic suspension force and the ordinary surveying device of capturing magnetic field.
Background technology
Perfect diamagnetism and zero resistance effect are the principal characters of superconductor.When a superconductor is in the external magnetic field, because the effect of diamagnetism and flux pinning effect will induce bucking current in superconductor inside, again because due to the zero resistance effect, bucking current is decay in time hardly.Magnetic field and external magnetic field that the bucking current that in superconducting sample, continues to flow produces interact, thereby produce the super-conductive magnetic suspension phenomenon.The super-conductive magnetic suspension technology that is the basis with the super-conductive magnetic suspension phenomenon has potential using value at the energy (flywheel energy storage), traffic (magnetic floats car), mechanical industry numerous areas such as (frictionless bearings).
Capturing magnetic field is the important parameter that superconductor is used on magnetic levitation technology.Not only can judge whether single domain of superconduction block material, also can calculate its magnetic buoyancy performance, even can simply infer the degree of the inherent vice of superconduction block material.
Magnetic buoyancy is the important parameter that characterizes block superconductor characteristic with capturing magnetic field.Though the latter more can be reflected the intrinsic property of material all sidedly, because that test condition requires is complicated, expensive and can not be as material ground conventional sense means.
The utility model content
The purpose of the utility model provides a kind of magnetic field measuring device of capturing simply and easily, is used under the situation of not destroying sample bulk single domain property and captures field characteristic and carry out scanning survey, thereby the quality of bulk is differentiated.
For realizing above-mentioned purpose, the utility model comprises following technical scheme:
A kind of block high-temperature superconductor is captured magnetic field measuring device, and it comprises frame 1, vertical movement mechanism 2, and two-dimensional level travel mechanism 3 drives and data acquisition system (DAS) 4, and low temperature sampling receptacle 5 magnetizes with magnet 6 and Hall element 7; Vertical movement mechanism 2 is fixed on the frame 1, magnetizes to be fixed on this vertical movement mechanism 2 with magnet 6 or Hall element 7; Two-dimensional level travel mechanism 3 is fixed on the frame 1, and is positioned at the below of vertical movement mechanism 2, and low temperature sampling receptacle 5 is fixed in this two-dimensional level travel mechanism 3; Vertical movement mechanism 2 is connected with driving and data acquisition system (DAS) 4 respectively with two-dimensional level travel mechanism 3.
Aforesaid device, wherein, this vertical movement mechanism 2 is made up of stepper motor 21, precision ball screw 22 and guide pillar 23 with slide-and-guide groove; These precision ball screw 22 1 ends connect stepper motor 21, and the other end connects this and magnetizes with magnet 6 or Hall element 7.
Aforesaid device, wherein, this two-dimensional level travel mechanism 3 comprises a sample holder; This sample holder is made up of first guide pillar 36 with slide-and-guide groove and second guide pillar 37, and two guide pillars are vertical each other; First stepper motor 32 and first precision ball screw 34 are set on this first guide pillar 36; Second stepper motor 33 and second precision ball screw 35 are set on this second guide pillar 37; Low temperature sampling receptacle 5 is fixed on first guide pillar 36; Be connected with first precision ball screw 34; The other end of this precision ball screw 34 connects first stepper motor 32, and by these precision ball screw 34 tractions, this low temperature sampling receptacle 5 moves horizontally along this first guide pillar 36; This first guide pillar 36 connects second precision ball screw 35, and the other end of this second precision ball screw 35 connects second stepper motor 33, and by these second precision ball screw, 35 tractions, first guide pillar 36 moves horizontally along this second guide pillar 37.
Aforesaid device, wherein, this driving and data acquisition system (DAS) 4 comprise the driving and the control module of output signals collecting and display unit and single unit system.
The beneficial effect of the utility model is: utilize the apparatus and method of the utility model can realize measuring capturing magnetic field and sample being compared of high-temperature superconducting block.The utility model provides capture magnetic field measuring device can be given in quantitatively through the superconduction block material after the externally-applied magnetic field magnetization with utilize this device to capture Flow Field Numerical and distribution from the magnetized superconduction block material of magnet carrier.
Description of drawings
Fig. 1 is the front view that block high-temperature superconductor is captured magnetic field measuring device among the embodiment 1.
Fig. 2 is the structural representation of two-dimensional level travel mechanism among the embodiment 1.
Embodiment
The step that the block high-temperature superconductor of application the utility model measurement device is captured magnetic field or magnetic material Surface field and Distribution of Magnetic Field is following:
A. at first superconductor is magnetized, and be fixed in the low temperature sampling receptacle 5 that fills liquid nitrogen, this low temperature sampling receptacle 5 is fixed in the two-dimensional level travel mechanism 3.The external magnetic field is adopted in the operation of magnetizing, or approaching through said vertical movement mechanism 2 drive magnets and superconductor, after cooling superconductor to the liquid nitrogen temperature superconductor is magnetized.
B. Hall element is fixed on the vertical movement mechanism, through stepper motor 21 definite Hall elements of driving vertical movement mechanism 2 and the distance between the superconducting sample;
C. control two stepper motors 32,33, make sample relatively and Hall element do tangential movement;
D. gather the measurement data of the coordinate figure and the Hall element of horizontal direction;
E. capture field data and Distribution of Magnetic Field figure with what the mapping of the data that collect can obtain superconducting sample.
To combine accompanying drawing and practical implementation example that the utility model is described further below.
The block high-temperature superconductor of a kind of preferred implementation of the utility model captures that magnetic field measuring device is as depicted in figs. 1 and 2, and it comprises frame 1, vertical movement mechanism 2; Two-dimensional level travel mechanism 3; Drive and data acquisition system (DAS) 4, low temperature sampling receptacle 5 magnetizes with magnet 6 and Hall element 7.Vertical movement mechanism 2 is fixed on the frame 1, magnetizes to be fixed on this vertical movement mechanism 2 with magnet 6 or Hall element 7; Two-dimensional level travel mechanism 3 is fixed on the frame 1, and is positioned at the below of vertical movement mechanism 2, and low temperature sampling receptacle 5 is positioned in this two-dimensional level travel mechanism 3; Vertical movement mechanism 2 is connected with driving and data acquisition system (DAS) 4 respectively with two-dimensional level travel mechanism 3.
Vertical movement mechanism 2 is made up of stepper motor 21, precision ball screw 22 and guide pillar 23 with slide-and-guide groove; These precision ball screw 22 1 ends connect stepper motor 21, and the other end connects this and magnetizes with magnet 6 or Hall element 7.
Two-dimensional level travel mechanism 3 comprises a sample holder; Sample holder is made up of first guide pillar 36 with slide-and-guide groove and second guide pillar 37, and two guide pillars are vertical each other; First stepper motor 32 and first precision ball screw 34 are set on first guide pillar 36; Second stepper motor 33 and second precision ball screw 35 are set on second guide pillar 37; Low temperature sampling receptacle 5 is fixed on first guide pillar 36, is connected with first precision ball screw 34, and the other end of precision ball screw 34 connects first stepper motor 32, and by precision ball screw 34 tractions, low temperature sampling receptacle 5 moves horizontally along first guide pillar 36; The other end that first guide pillar 36 connects second precision ball screw, 35, the second precision ball screws 35 connects second stepper motor 33, and by 35 tractions of second precision ball screw, first guide pillar 36 moves horizontally along second guide pillar 37.
The maximum horizontal sweep limit of this device is 150mm * 150mm, and the vertical moving distance is 100mm, and minimum stepper distances is 25 microns.
Embodiment 2 block high-temperature superconductors are captured magnetic-field measurement
Device described in the application implementation example 1, measuring process is following:
A. at first superconductor is magnetized, the operation of magnetizing can be adopted the external magnetic field, and it is approaching with magnet 6 and superconductor to magnetize through vertical movement mechanism 2 drives in the present embodiment, after cooling superconductor to the liquid nitrogen temperature superconductor is magnetized.Stepper motor 21 drives leading screw moves up and down charged magnet 6; Can confirm the distance between charged magnet and the sample according to the rotational angle of stepper motor and the helical pitch of screw mandrel, (distance=screw mandrel helical pitch in every one step of action of stepper motor multiply by the motor stepping angle divided by 360 degree).After magnetizing, superconductor to keep liquid nitrogen temperature, if temperature rising meeting exerts an influence to measurement result always.
C. control two stepper motors 32,33, make sample relatively and Hall element 7 do tangential movement.
D. gather the measurement data of the coordinate figure and the Hall element of horizontal direction.
E. capture field data and Distribution of Magnetic Field figure with what the mapping of the data that collect can obtain superconducting sample.
Claims (4)
1. a block high-temperature superconductor is captured magnetic field measuring device, it is characterized in that, it comprises frame (1); Vertical movement mechanism (2), two-dimensional level travel mechanism (3) drives and data acquisition system (DAS) (4); Low temperature sampling receptacle (5) magnetizes with magnet (6) and Hall element (7);
This vertical movement mechanism (2) is fixed on the frame (1), magnetizes to be fixed on this vertical movement mechanism (2) with magnet (6) or Hall element (7);
This two-dimensional level travel mechanism (3) is fixed on the frame (1), and is positioned at the below of vertical movement mechanism (2), and low temperature sampling receptacle (5) is fixed in this two-dimensional level travel mechanism (3);
This vertical movement mechanism (2) is connected with driving and data acquisition system (DAS) (4) respectively with two-dimensional level travel mechanism (3).
2. device as claimed in claim 1 is characterized in that, said vertical movement mechanism (2) is by stepper motor (21), precision ball screw (22) and have guide pillar (23) formation of slide-and-guide groove; These precision ball screw (22) one ends connect stepper motor (21), and the other end connects this and magnetizes with magnet (6) or Hall element (7).
3. device as claimed in claim 1 is characterized in that, said two-dimensional level travel mechanism (3) comprises a sample holder; This sample holder is made up of first guide pillar (36) with slide-and-guide groove and second guide pillar (37), and two guide pillars are vertical each other; First stepper motor (32) and first precision ball screw (34) are set on this first guide pillar (36); Second stepper motor (33) and second precision ball screw (35) are set on this second guide pillar (37); Low temperature sampling receptacle (5) is fixed on first guide pillar (36); Be connected with first precision ball screw (34); The other end of this precision ball screw (34) connects first stepper motor (32); By this precision ball screw (34) traction, this low temperature sampling receptacle (5) moves horizontally along this first guide pillar (36); This first guide pillar (36) connects second precision ball screw (35), and the other end of this second precision ball screw (35) connects second stepper motor (33), and by this second precision ball screw (35) traction, first guide pillar (36) moves horizontally along this second guide pillar (37).
4. device as claimed in claim 1 is characterized in that, said driving and data acquisition system (DAS) (4) comprise the driving and the control module of output signals collecting and display unit and single unit system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373109U CN202533569U (en) | 2011-12-20 | 2011-12-20 | A trapped field measuring device of a block-shaped high-temperature superconductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205373109U CN202533569U (en) | 2011-12-20 | 2011-12-20 | A trapped field measuring device of a block-shaped high-temperature superconductor |
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| Publication Number | Publication Date |
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| CN202533569U true CN202533569U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205373109U Expired - Lifetime CN202533569U (en) | 2011-12-20 | 2011-12-20 | A trapped field measuring device of a block-shaped high-temperature superconductor |
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| CN (1) | CN202533569U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176145A (en) * | 2011-12-20 | 2013-06-26 | 北京有色金属研究总院 | Device and method for measuring trapped magnetic field of block high temperature superconductor |
| CN103472417A (en) * | 2013-09-06 | 2013-12-25 | 复旦大学 | Superconducting phase microcell detecting method based on magnetic shielding property |
| CN103901366A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Device and method for measuring large-grain block high-temperature superconductor and combination trapped magnetic field of large-grain block high-temperature superconductor |
| CN105301531A (en) * | 2015-11-24 | 2016-02-03 | 北京鼎臣超导科技有限公司 | Method and device for measuring circumferential angle magnetic line based on Hall magnetic sensor |
-
2011
- 2011-12-20 CN CN2011205373109U patent/CN202533569U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176145A (en) * | 2011-12-20 | 2013-06-26 | 北京有色金属研究总院 | Device and method for measuring trapped magnetic field of block high temperature superconductor |
| CN103176145B (en) * | 2011-12-20 | 2015-11-18 | 北京有色金属研究总院 | Block high-temperature superconductor Trapped field measurement mechanism and method |
| CN103901366A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Device and method for measuring large-grain block high-temperature superconductor and combination trapped magnetic field of large-grain block high-temperature superconductor |
| CN103472417A (en) * | 2013-09-06 | 2013-12-25 | 复旦大学 | Superconducting phase microcell detecting method based on magnetic shielding property |
| CN105301531A (en) * | 2015-11-24 | 2016-02-03 | 北京鼎臣超导科技有限公司 | Method and device for measuring circumferential angle magnetic line based on Hall magnetic sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190625 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Research Institute of engineering and Technology Co., Ltd. Address before: 100088 No. 2 Xinjiekouwai Street, Xicheng District, Beijing Patentee before: General Research Institute for Nonferrous Metals |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |