CN106290445B - A kind of magnet temperature control device for magnetic resonance detection - Google Patents
A kind of magnet temperature control device for magnetic resonance detection Download PDFInfo
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- CN106290445B CN106290445B CN201610944826.2A CN201610944826A CN106290445B CN 106290445 B CN106290445 B CN 106290445B CN 201610944826 A CN201610944826 A CN 201610944826A CN 106290445 B CN106290445 B CN 106290445B
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- inner bag
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
- G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3804—Additional hardware for cooling or heating of the magnet assembly, for housing a cooled or heated part of the magnet assembly or for temperature control of the magnet assembly
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- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The present invention relates to a kind of magnet temperature control device for magnetic resonance detection, using outer box, inner bag, and coordinate the structure design of insulation material, introduce multiple temperature control loops, each temperature control loop is by heater（10）, fan（9）And temperature sensor（11）Composition, each temperature sensor（11）By temperature controller（14）Control, and each temperature control loop can work independently, and reach multiple spot detection, the temperature control effect of multiparty control.In practical application, by the temperature controller for selecting different accuracy and specification（14）, temperature sensor（11）And heater（10）, reach the constant temperature effect and control accuracy of different temperatures, be suitably applied the magnetic resonance detection of different occasions, reach effect applied widely, and then can effectively ensure that magnet（12）Service behaviour.
Description
Technical field
The present invention relates to a kind of magnet temperature control device for magnetic resonance detection, belong to nuclear magnetic resonance technique field.
Background technology
Nuclear magnetic resonance（Nuclear Magnetic Resonance, abbreviation NMR）Refer to the atomic nucleus of non-zero magnetic moment in master
Under magnetic field and radiofrequency field perpendicular acting, Zeeman splitting occurs for spin energy level, and atomic nucleus absorbs a kind of physical process of RF energy,
With the incomparable numerous advantages of other detection means such as Non-Destructive Testing, detection information be abundant.Nuclear magnetic resonance technique extensively should
For chemical structure analysis, molecular dynamics, diagnosing image and other field.In recent years, the nuclear magnetic resonance applied to analysis
Analyzer develops towards low cost, high accuracy, portable direction.
For the magnetic resonance detection device using permanent magnet, the magnetic field intensity of magnetic field of permanent magnet can be with environment temperature
Change and change, so as to have influence on the detection of NMR signal.Nuclear magnetic resonance technique application is very wide, covers life
The various fields such as thing, medical science, chemistry, food, oil, polymer, safety check, building and the art work.But temperature is to the shadow of magnet
Ring, can not ignore.Traditional nuclear magnetic resonance equipment, poor temperature uniformity, heat insulation effect is bad, and bulky, manufacture
High with maintenance cost, the operating of whole device and in-site installation are extremely difficult and complicated, and this will limit removable behaviour significantly
Make, the exploitativeness of thing Site Detection to be checked.Therefore, it is to ensure the operating ambient temperature of magnet using easy temperature control system
Essential.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of heat-insulating property is low, temperature distribution evenness is poor, device is multiple
The problems such as miscellaneous heavy the magnet temperature control device for magnetic resonance detection.
In order to solve the above-mentioned technical problem the present invention uses following technical scheme：The present invention devises one kind and is total to for nuclear-magnetism
Shake the magnet temperature control device of detection, including the insulation of outter box top cover, inner bag box body top cover, inner bag closure head insulation material, wall of inner container
Material, bottom plate, magnet, temperature controller, at least one set of temperature control device, and the outter box and inner bag box body that top and bottom are unlimited；Its
In, the size of bottom surface open ports and the size of bottom plate of outter box are adapted, and outter box bottom surface open ports are fixedly installed on bottom plate
Upper surface on, the size and the size of outter box opened top mouth of outter box top cover are adapted, wherein the one of outter box top cover
Side is flexibly connected with the corresponding sides of outter box opened top mouth, outter box top cover using it with outter box opened top mouth company side as
Axle is rotated, and realizes unlatching and the closure of outter box opened top mouth, and set on outter box top cover through upper and lower surface
Crust sample hole；Size on inner bag box body horizontal plane is less than the size on outter box horizontal plane, and the height of inner bag box body
No more than the height of outter box, inner bag box body is located in outter box, and inner bag box bottom open ports are fixedly installed on bottom plate
On upper surface, the size and the size of inner bag box body opened top mouth of inner bag box body top cover are adapted, inner bag box body top cover its
Middle one side is flexibly connected with the corresponding sides of inner bag box body opened top mouth, is set on inner bag box body top cover and is run through upper and lower surface, and
The inner bag sample well corresponding with crust sample hole site；Inner bag closure head insulation material is covered in the following table of inner bag box body top cover
Face, and the through hole corresponding with inner bag sample well is set on inner bag closure head insulation material, wall of inner container insulation material is covered in inner bag
The side of box body；Magnet is located in inner bag box body, and magnet is arranged at the upper surface of bottom plate；Each group temperature control device respectively includes
Fan, heater, temperature sensor, solid-state relay, temperature controller respectively with the fan in each group temperature control device, solid-state relay
It is connected, the heater in each group temperature control device is connected with corresponding solid-state relay；Wherein, the fan in each group temperature control device
It is located at respectively in inner bag box body with temperature sensor, and is fixed in the side wall of inner bag box body, the heating in each group temperature control device
Device is arranged at the air outlet of corresponding fan, and the solid-state relay in each group temperature control device is respectively arranged at the outer wall of inner bag box body
On；Temperature controller is arranged on the inwall of outter box, and position corresponding with temperature controller control window on the inwall of outter box, is set
Through the temperature controller panel mouth of outter box interior or exterior space, the size of temperature controller panel mouth is mutually fitted with the control window size of temperature controller
Should.
As a preferred technical solution of the present invention：The magnet is arranged at the upper surface of bottom plate, and magnet and bottom plate
Retain the gap of preset height between upper surface.
As a preferred technical solution of the present invention：Also include at least one pin to follow closely, the inner bag box bottom opens wide
Mouth is fixedly installed on the upper surface of bottom plate by each pin nail.
As a preferred technical solution of the present invention：The outter box top cover, inner bag box body top cover, outter box, inner bag
Box body and bottom plate are made of thin aluminium alloy plate or non-magnetic material.
As a preferred technical solution of the present invention：Also include at least four boss that array is arranged on bottom plate lower surface
Footing.
A kind of magnet temperature control device for magnetic resonance detection of the present invention is using above technical scheme and existing skill
Art is compared, and has following technique effect：The of the invention designed magnet temperature control device for being used for magnetic resonance detection, using outer box,
Inner bag, and coordinate the structure design of insulation material, multiple temperature control loops are introduced, each temperature control loop is by heater, fan and temperature
Sensor group is spent into each temperature sensor is controlled by temperature controller, and each temperature control loop can work independently, and reach multiple spot
Detection, the temperature control effect of multiparty control.In practical application, by the temperature controller, the temperature sensor that select different accuracy and specification
And heater, reach the constant temperature effect and control accuracy of different temperatures, be suitably applied the magnetic resonance detection of different occasions, reach
To effect applied widely, and then it can effectively ensure that the service behaviour of magnet.
Brief description of the drawings
Fig. 1 is top view of the present invention designed for the magnet temperature control device of magnetic resonance detection；
Fig. 2 is exploded perspective view of the present invention designed for the magnet temperature control device of magnetic resonance detection；
Fig. 3 is diagrammatic cross-section of the present invention designed for the magnet temperature control device of magnetic resonance detection；
Fig. 4 is the present invention designed for the knot of outter box top cover and outter box in the magnet temperature control device of magnetic resonance detection
Structure schematic diagram；
Fig. 5 is the present invention designed for inner bag box body top cover in the magnet temperature control device of magnetic resonance detection and inner bag box body
Structural representation；
Fig. 6 is structural representation of the present invention designed for the magnet temperature control device bottom plate of magnetic resonance detection；
Fig. 7 is that the present invention shows designed for the structure of wall of inner container insulation material in the magnet temperature control device of magnetic resonance detection
It is intended to；
Fig. 8 is the structural representation that the present invention follows closely designed for pin in the magnet temperature control device of magnetic resonance detection.
Wherein, 1. outter box top cover, 2. inner bag box body top covers, 3. inner bag closure head insulation materials, 4. outter box, 5.
Inner bag box body, 6. wall of inner container insulation materials, 7. pin nail, 8. bottom plates, 9. fans, 10. heaters, 11. temperature sensors,
12. magnet, 13. solid-state relays, 14. temperature controllers, 1a. crust samples hole, 2a. inner bag sample wells, 4a. temperature controllers face
Plate mouth, 4b. outer casing bottom screwed holes, 5a. solid-state relay fixing holes, 5b. pin nail fixing hole, 5c. temperature sensors are consolidated
Determine hole, 5d. heaters and fan fixing hole, 5e. cable holes, 6a. sensing stations hole, 6b. heaters and position of fan
Hole, 6c. cabling location holes, 6d. pin nail location hole, 7a. pin nail counter sink, 8a. bottom plate magnet fixing holes, 8b. bottom plate pin
Follow closely fixing hole, 8c. plate shell fixing holes.
Embodiment
The embodiment of the present invention is described in further detail with reference to Figure of description.
As shown in Figure 1, Figure 2 and Figure 3, the present invention devises a kind of magnet temperature control device for magnetic resonance detection, has
Body includes outter box top cover 1, inner bag box body top cover 2, inner bag closure head insulation material 3, wall of inner container insulation material 6, bottom plate 8, magnet
12nd, temperature controller 14, at least one pin nail 7, at least one set of temperature control device, and the outter box 4 and inner bag box that top and bottom are unlimited
Body 5；Wherein, outter box top cover 1, inner bag box body top cover 2, outter box 4, inner bag box body 5 and bottom plate 8 using thin aluminium alloy plate or
Non-magnetic material is made, without larger load-and pressure-bearing；The size and the size of bottom plate 8 of the bottom surface open ports of outter box 4 are adapted,
The bottom surface open ports of outter box 4, which are fixed, to be arranged at by screwed hole on the upper surface of bottom plate 8, the size and outer box of outter box top cover 1
The size of the opened top mouth of body 4 is adapted, outter box top cover 1 wherein while being lived with the corresponding sides of the opened top mouth of outter box 4
Dynamic connection, outter box top cover 1 using it with the opened top mouth of outter box 4 company side rotated as axle, realize that the top surface of outter box 4 opens
The unlatching of opening and closure, and the crust sample hole 1a through upper and lower surface is set on outter box top cover 1；The lower surface battle array of bottom plate 8
Row set at least four boss footing, to carry；Size on the horizontal plane of inner bag box body 5 is less than on the horizontal plane of outter box 4
Size, and the height of inner bag box body 5 be not more than outter box 4 height, inner bag box body 5 is located in outter box 4, and inner bag box body
5 bottom surface open ports are fixedly installed on the upper surface of bottom plate 8 by each pin nail 7, and pin follows closely 7 structures as shown in figure 8, inner bag box body
The size of top cover 2 and the size of the opened top mouth of inner bag box body 5 are adapted, inner bag box body top cover 2 wherein while with inner bag box
The corresponding sides of the opened top mouth of body 5 are flexibly connected, and are set on inner bag box body top cover 2 and are run through upper and lower surface, and with crust sample hole
The corresponding inner bag sample well 2a in 1a positions；Inner bag closure head insulation material 3 is covered in the lower surface of inner bag box body top cover 2, and interior
The through hole corresponding with inner bag sample well 2a is set on courage closure head insulation material 3, and wall of inner container insulation material 6 is covered in inner bag box body
5 side；Magnet 12 is located in inner bag box body 5, and magnet 12 is arranged at the upper surface of bottom plate 8, and magnet 12 and the upper surface of bottom plate 8
Between retain the gap of preset height, thus increase circulation of the air in inner bag box body 5, reduce different positions in inner bag box body 5
The temperature difference put；In said structure, inner bag closure head insulation material 3 and wall of inner container insulation material 6 are close to inner bag box body respectively
On top cover 2 and the inwall of inner bag box body 5, vertical direction gapless between inner bag box body 5 and bottom plate 8, by inner bag box body top cover 2 with it is interior
For the inner bag that courage box body 5 is formed with extraneous without air exchange, the fan 9 in each group temperature control device remains rotation, circulation liner
In air, and the power of heater 10 in each group temperature control device is relatively low, and temperature fluctuation is small, reaches good heat insulating, temperature
Spend the high effect of uniformity；Each group temperature control device respectively includes fan 9, heater 10, temperature sensor 11, solid-state relay
13, temperature controller 14 is connected with the fan 9 in each group temperature control device, solid-state relay 13 respectively, adding in each group temperature control device
Hot device 10 is connected with corresponding solid-state relay 13；Wherein, the fan 9 in each group temperature control device and temperature sensor 11 distinguish position
In inner bag box body 5, and it is fixed in the side wall of inner bag box body 5, the heater 10 in each group temperature control device is arranged at corresponding wind
The air outlet of fan 9, the solid-state relay 13 in each group temperature control device are respectively arranged on the outer wall of inner bag box body 5；Temperature controller 14
It is arranged on the inwall of outter box 4, and position corresponding with the control window of temperature controller 14 on the inwall of outter box 4, setting run through
The temperature controller panel mouth 4a of the interior or exterior space of outter box 4, temperature controller panel mouth 4a size and the control window size phase of temperature controller 14
Adapt to.
The of the invention designed magnet temperature control device for being used for magnetic resonance detection, in practical application, magnet 12 and all members
Device is by the load-bearing of bottom plate 8 and is grounded；Retain the gap of default 2cm height between magnet 12 and the upper surface of bottom plate 8, thus increase
Circulation of the air in inner bag box body 5, reduce the temperature difference of diverse location in inner bag box body 5.
As shown in figure 4, leave crust sample hole 1a on outter box top cover 1, to detect the insertion of sample, outside outter box 4
4a is left in side, and to install temperature controller, outer casing bottom screwed hole 4b is left in the bottom of outter box 4, and the screwed hole of the side of bottom plate 8 is matched somebody with somebody
Close, play a part of fixed outter box 4, be i.e. the bottom surface open ports of outter box 4 fix the upper surface that bottom plate 8 is arranged at by screwed hole
On.
As shown in figure 5, inner bag sample well 2a is left on inner bag box body top cover 2, to detect the insertion of sample, inner bag box body
Leave solid-state relay fixing hole 5a, pin nail fixing hole 5b, temperature sensor fixing hole 5c, heater and fan and fix in 5 outsides
Hole 5d, cable hole 5e, so as to the installation and fixation of component.
As shown in fig. 6, bottom plate magnet fixing hole 8a, bottom plate pin nail fixing hole 8b are left in the top of bottom plate 8, so as to the He of magnet 12
The fixation of inner bag box body 5, plate shell fixing hole 8c is left in the side of bottom plate 8, for fixing outter box 4.
As shown in fig. 7, sensing station hole 6a, heater and position of fan hole 6b are left on wall of inner container insulation material 6, is walked
Line position hole 6c, pin nail location hole 6d, so as to the installation and fixation of component.
As shown in figure 8, pin nail counter sink 7a is left on pin nail 7, for inner bag box body 5 is fixed on bottom plate 8.
The designed magnet temperature control device for being used for magnetic resonance detection of above-mentioned technical proposal, using outer box, inner bag, and coordinates
The structure design of insulation material, multiple temperature control loops are introduced, each temperature control loop is by heater 10, fan 9 and temperature sensor
11 compositions, each temperature sensor 11 are controlled by temperature controller 14, and each temperature control loop can work independently, and reach multiple spot inspection
Survey, the temperature control effect of multiparty control.In practical application, by selecting different accuracy and the temperature controller of specification 14, temperature sensor
11 and heater 10, reach the constant temperature effect and control accuracy of different temperatures, be suitably applied the nuclear magnetic resonance inspection of different occasions
Survey, reach effect applied widely, and then can effectively ensure that the service behaviour of magnet 12.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Make a variety of changes.
Claims (3)
- A kind of 1. magnet temperature control device for magnetic resonance detection, it is characterised in that：Including outter box top cover (1), inner bag box Body top cover (2), inner bag closure head insulation material (3), wall of inner container insulation material (6), bottom plate (8), magnet (12), temperature controller (14), At least one set of temperature control device, at least one pin nail (7), and the outter box (4) and inner bag box body (5) that top and bottom are unlimited；Its In, the size and the size of bottom plate (8) of the bottom surface open ports of outter box (4) are adapted, and outter box (4) bottom surface open ports are fixed and set It is placed on the upper surface of bottom plate (8), the size and the size of outter box (4) opened top mouth of outter box top cover (1) are adapted, outside Box body top cover (1) wherein while being flexibly connected with the corresponding sides of outter box (4) opened top mouth, outter box top cover (1) is with it Connect side with outter box (4) opened top mouth to be rotated for axle, realize the unlatching and closure of outter box (4) opened top mouth, And set on outter box top cover (1) through the crust sample hole (1a) of upper and lower surface；Size on inner bag box body (5) horizontal plane is small Size on outter box (4) horizontal plane, and the height of inner bag box body (5) is not more than the height of outter box (4), inner bag box body (5) it is located in outter box (4), and inner bag box body (5) bottom surface open ports follow closely (7) by each pin and are fixedly installed on bottom plate (8) On upper surface, the size and the size of inner bag box body (5) opened top mouth of inner bag box body top cover (2) are adapted, inner bag box body top Lid (2) wherein while be flexibly connected with the corresponding sides of inner bag box body (5) opened top mouth, set on inner bag box body top cover (2) Through upper and lower surface, and the inner bag sample well (2a) corresponding with crust sample hole (1a) position；Inner bag closure head insulation material (3) The lower surface of inner bag box body top cover (2) is covered in, and is set on inner bag closure head insulation material (3) relative with inner bag sample well (2a) The through hole answered, wall of inner container insulation material (6) are covered in the side of inner bag box body (5)；Magnet (12) is located in inner bag box body (5), And magnet (12) is arranged at the upper surface of bottom plate (8), and between magnet (12) and bottom plate (8) upper surface between reservation preset height Gap；Each group temperature control device respectively includes fan (9), heater (10), temperature sensor (11), solid-state relay (13), temperature Control device (14) is connected with the fan (9) in each group temperature control device, solid-state relay (13) respectively, adding in each group temperature control device Hot device (10) is connected with corresponding solid-state relay (13)；Wherein, the fan (9) and temperature sensor in each group temperature control device (11) it is located at respectively in inner bag box body (5), and is fixed in the side wall of inner bag box body (5), the heater in each group temperature control device (10) it is arranged at the air outlet of corresponding fan (9), the solid-state relay (13) in each group temperature control device is respectively arranged at inner bag box On the outer wall of body (5)；Temperature controller (14) is arranged on the inwall of outter box (4), and on the inwall of outter box (4) with temperature controller (14) the corresponding position of window is controlled, the temperature controller panel mouth (4a) through outter box (4) interior or exterior space, temperature controller panel are set The mouth size of (4a) is adapted with the control window size of temperature controller (14).
- A kind of 2. magnet temperature control device for magnetic resonance detection according to claim 1, it is characterised in that：The outer box Body top cover (1), inner bag box body top cover (2), outter box (4), inner bag box body (5) and bottom plate (8) use thin aluminium alloy plate or nothing Magnetic material is made.
- A kind of 3. magnet temperature control device for magnetic resonance detection according to claim 1, it is characterised in that：Also include battle array Row are arranged at least four boss footing of bottom plate (8) lower surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944826.2A CN106290445B (en) | 2016-11-02 | 2016-11-02 | A kind of magnet temperature control device for magnetic resonance detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944826.2A CN106290445B (en) | 2016-11-02 | 2016-11-02 | A kind of magnet temperature control device for magnetic resonance detection |
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| Publication Number | Publication Date |
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| CN106290445A CN106290445A (en) | 2017-01-04 |
| CN106290445B true CN106290445B (en) | 2018-02-27 |
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| CN201610944826.2A Active CN106290445B (en) | 2016-11-02 | 2016-11-02 | A kind of magnet temperature control device for magnetic resonance detection |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326552A (en) * | 1998-09-11 | 2001-12-12 | 牛津磁体技术有限公司 | Temperature control system for a permanent magnetic system |
| JP2005257528A (en) * | 2004-03-12 | 2005-09-22 | Jeol Ltd | Flow through type nmr probe for measuring high temperature |
| CN101788655A (en) * | 2009-01-24 | 2010-07-28 | Ge医疗系统环球技术有限公司 | Magnetic resonance imaging system and method for stabilizing temperature of main magnet in same |
| CN204439584U (en) * | 2014-12-29 | 2015-07-01 | 丹东东方测控技术股份有限公司 | A kind of industrial on-line NMR analyser |
| CN105651802A (en) * | 2014-09-15 | 2016-06-08 | 艾斯拜克特Ai有限公司 | Temperature-controllable and replacable NMR probe case and method |
| CN206208801U (en) * | 2016-11-02 | 2017-05-31 | 江苏麦格迈医学科技有限公司 | A kind of magnet attemperating unit for magnetic resonance detection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05212012A (en) * | 1992-02-10 | 1993-08-24 | Hitachi Medical Corp | Magnetic resonance imaging system |
| DE102007061593B4 (en) * | 2007-12-20 | 2012-02-16 | Siemens Ag | Electronic device of a magnetic resonance apparatus and magnetic resonance apparatus with such an electronic device |
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2016
- 2016-11-02 CN CN201610944826.2A patent/CN106290445B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326552A (en) * | 1998-09-11 | 2001-12-12 | 牛津磁体技术有限公司 | Temperature control system for a permanent magnetic system |
| JP2005257528A (en) * | 2004-03-12 | 2005-09-22 | Jeol Ltd | Flow through type nmr probe for measuring high temperature |
| CN101788655A (en) * | 2009-01-24 | 2010-07-28 | Ge医疗系统环球技术有限公司 | Magnetic resonance imaging system and method for stabilizing temperature of main magnet in same |
| CN105651802A (en) * | 2014-09-15 | 2016-06-08 | 艾斯拜克特Ai有限公司 | Temperature-controllable and replacable NMR probe case and method |
| CN204439584U (en) * | 2014-12-29 | 2015-07-01 | 丹东东方测控技术股份有限公司 | A kind of industrial on-line NMR analyser |
| CN206208801U (en) * | 2016-11-02 | 2017-05-31 | 江苏麦格迈医学科技有限公司 | A kind of magnet attemperating unit for magnetic resonance detection |
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Effective date of registration: 20230920 Address after: 4401, 4th Floor, Cuiping Science and Technology Innovation Park, No. 37 Jiangjun Avenue, Jiangning District, Nanjing City, Jiangsu Province, 210000 (Jiangning Development Zone) Patentee after: Jiangsu Magrui Electronic Technology Co.,Ltd. Address before: 9 / F, information building, No.1, information Avenue, Guangling New Town, Guangling District, Yangzhou City, Jiangsu Province 225000 Patentee before: JIANGSU MCGREGOR MEDICAL TECHNOLOGY Co.,Ltd. |