CN109540957A - A kind of Permanent magnetic MR spectrometer - Google Patents
A kind of Permanent magnetic MR spectrometer Download PDFInfo
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- CN109540957A CN109540957A CN201811638247.0A CN201811638247A CN109540957A CN 109540957 A CN109540957 A CN 109540957A CN 201811638247 A CN201811638247 A CN 201811638247A CN 109540957 A CN109540957 A CN 109540957A
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- permanent magnetic
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- temperature
- casing
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- 238000004458 analytical method Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 45
- 239000000523 sample Substances 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000010779 crude oil Substances 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 claims description 4
- 239000003350 kerosene Substances 0.000 claims description 4
- 239000010687 lubricating oil Substances 0.000 claims description 4
- -1 naphtha Substances 0.000 claims description 4
- 239000001993 wax Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 4
- 239000002355 dual-layer Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008844 regulatory mechanism Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- G01N24/085—Analysis of materials for the purpose of controlling industrial production systems
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- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a kind of Permanent magnetic MR spectrometers, comprising: the casing being sheathed on outside nuclear magnetic tube；Lower end is connected to the cavity of heating unit；Detector coil and analysis probe are provided between casing and permanent magnet；The lower end of heating unit is connected with the air intake vent being connected to cavity；Heating unit is used to that thermal energy to be transmitted in casing by heating chamber intracorporal air.Permanent magnetic MR spectrometer in the embodiment of the present invention, it can be when the temperature to analysis object be effectively controlled, influence of the temperature for Permanent magnetic MR spectrometer stability is avoided, to improve the analysis precision when analysis needs to carry out temperature controlled analysis object of Permanent magnetic MR spectrometer.
Description
Technical field
The present invention relates to petrochemical industries, more particularly to a kind of Permanent magnetic MR spectrometer.
Background technique
Nmr phenomena refers to, Zeeman point occurs for the atomic nucleus that magnetic moment the is not zero energy level that spins under external magnetic field
It splits, upper state can be transitted to by lower state when applying the radio-frequency pulse of a certain specific frequency；The atom after stopping radio-frequency pulse
Core can be back to lower state state by upper state immediately, and the phenomenon that convert electric signal for the energy released.
Divide phenomenon and manufactured Permanent magnetic MR spectrometer according to nuclear magnetic resonance, can be applied to petrochemical industry,
It is mainly used for the Physical Property Analysis of liquid medium, for example, can be used to test and analyze crude oil, naphtha, kerosene, diesel oil, wax oil, profit
The main character of the materials such as lubricating oil.
In the prior art, Permanent magnetic MR spectrometer is usually by permanent magnet, nuclear magnetic tube, detector coil (also known as radio frequency
Oscillator) and analysis probe (also known as radio frequency receiver) composition.When Permanent magnetic MR spectrometer be applied to petrochemical industry,
Using chemical industry oil plant as analysis object when need in the analysis process by these analysis objects temperature control in certain temperature
In section.
Inventor has found that at least there is also following defects in the prior art:
Since the magnetic field of Permanent magnetic MR spectrometer is more sensitive to temperature, when to analysis object progress temperature control
It is easy to influence magnetic field's regularity and stability when processed, to influence the stability and accuracy of analysis of oil.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of Permanent magnetic MR spectrometers, can carry out in the temperature to analysis object
When effective control, influence of the temperature for Permanent magnetic MR spectrometer performance is avoided, to improve Permanent magnetic MR wave
The analysis precision of spectrometer.
To achieve the above object, the present invention provides a kind of Permanent magnetic MR spectrometers, comprising:
Casing is sheathed on outside nuclear magnetic tube；
Detector coil and analysis probe, are all set between described sleeve pipe and permanent magnet；
Heating unit, with cavity, which is connected to described sleeve pipe lower end, and the lower end of the heating unit is connected with
The air intake vent being connected to the cavity；
The heating unit is used to that thermal energy to be transmitted to described sleeve pipe by heating the chamber intracorporal air
It is interior.
Further, in above-mentioned technical proposal, the heating unit includes heating resistance wire.
Further, in above-mentioned technical proposal, further includes: control unit and the temperature sensing connected with described sleeve pipe
Device；
Described control unit is used to control the work shape of the heating unit according to the acquisition data of the temperature sensor
State.
Further, in above-mentioned technical proposal, the material of described sleeve pipe is glass.
Further, in above-mentioned technical proposal, described sleeve pipe includes dual-layer vacuum glass pipe.
Further, in above-mentioned technical proposal, described control unit include real time temperature obtain module, threshold setting module,
Processing module and electric-controlled switch；
The real time temperature obtains the real time temperature data that module is used to obtain the temperature sensor acquisition；
The threshold setting module is used for determining pair of type according to the analysis object of the Permanent magnetic MR spectrometer
The temperature threshold range answered；
The processing module is used to generate the electric-controlled switch according to the real time temperature data and Current Temperatures section
Control command.
Further, in above-mentioned technical proposal, the heating unit further includes thermal insulation layer.
Further, in above-mentioned technical proposal, the air intake vent is additionally provided with fan.
Further, in above-mentioned technical proposal, the temperature sensor is sheathed on outside described sleeve pipe.
Further, in above-mentioned technical proposal, the analysis object of the Permanent magnetic MR spectrometer includes:
Crude oil, naphtha, kerosene, diesel oil, wax oil or lubricating oil.
Beneficial effect
Permanent magnetic MR spectrometer provided by the invention, casing is arranged with outside nuclear magnetic tube, then passes through heating unit
Make to be maintained in casing within the scope of a default temperature, so that analysis object in nuclear magnetic tube and nuclear magnetic tube be made also to may be at
In one constant range, and then achieve the purpose that carry out temperature control to analysis object.
The lower end of middle sleeve of the present invention enters in the cavity of heating unit, and casing can be made to directly acquire heating unit institute
The thermal energy of generation；In addition, air intake vent in the embodiment of the present invention is set to the lower end of heating unit, permanent magnet and forever may be located remotely from
Other core equipments of magnetic-type resonance spectrometer, so as to effectively reduce in the heating unit that air intake vent is given out
Influence of the heat to permanent magnet.
From the above, it can be seen that the Permanent magnetic MR spectrometer in the embodiment of the present invention, it can be in the temperature to analysis object
When degree is effectively controlled, influence of the temperature for Permanent magnetic MR spectrometer magnetic field homogeneity is avoided, so as to have
Analysis precision of the raising of effect when analysis needs to carry out temperature controlled analysis object.
Above description is only the general introduction of technical solution of the present invention, in order to more clearly understand technological means of the invention
And it can be practiced according to the content of specification, while in order to make above and other purpose of the invention, technical characteristic and excellent
Point is more understandable, is exemplified below one or more preferred embodiments, and be described in detail with the accompanying drawings as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Permanent magnetic MR spectrometer according to the present invention；
Fig. 2 is the partial enlargement structural representation of Permanent magnetic MR spectrometer according to the present invention.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Explicitly indicate that, otherwise in entire disclosure and claims, term " includes " or its change unless otherwise other
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other yuan
Part or other components.
Herein, for convenience of description, spatially relative term can be used, such as " following ", " lower section ", "lower",
" above ", " top ", "upper" etc., to describe an elements or features and the relationship of another elements or features in the accompanying drawings.Ying Li
Solution, spatially relative term are intended to comprising the not Tongfang of object in use or operation other than direction painted in figure
To.For example, the element for being described as be in other elements or feature " lower section " or "lower" will if the object in figure is reversed
Orientation is in " top " of the elements or features.Therefore, exemplary term " lower section " may include following above and both direction.
Object can also have other orientations (be rotated by 90 ° or other are orientated) and reply spatially relative term used herein is made accordingly
Explanation.
Herein, term " first ", " second " etc. be distinguishing two different elements or position, be not to
Limit specific position or relativeness.In other words, in some embodiments, term " first ", " second " etc. can also be each other
It exchanges.
As depicted in figs. 1 and 2, it is embodied according to the present invention, Permanent magnetic MR spectrometer includes being sheathed on nuclear magnetic tube
Casing 03 outside 01；03 lower end of casing is connected to the cavity of heating unit 04；Detection is provided between casing 03 and permanent magnet 02
Device coil 07 and analysis probe 08；The lower end of heating unit 04 is connected with the air intake vent 05 being connected to cavity；Heating unit 04 is used
In by being heated to the intracorporal air of chamber, thermal energy is transmitted in casing 03.
Permanent magnetic MR spectrometer in the embodiment of the present invention, casing 03 is arranged with outside its nuclear magnetic tube, is then passed through
Heating unit 04 makes to be maintained in casing 03 within the scope of a default temperature, to make the analysis pair of nuclear magnetic tube 01 and the inside
As also may be in a relative constant range, and then achieve the purpose that carry out temperature control to analysis object.
Permanent magnetic MR spectrometer is to realize to analyze analysis Properties of Objects based on nuclear magnetic resonance principle, magnetic field
Uniformity the validity of resonance signal can be had a huge impact, and the unstable rule of temperature will have a direct impact on the equal of magnetic field
Even property, if for this purpose, can effectively avoid heat from conducting to permanent magnet when carrying out temperature adjustment to analysis object, it will mention
The analysis precision and effect of high Permanent magnetic MR spectrometer.
Based on considerations above, the lower end of the casing 03 in the embodiment of the present invention is entered in the cavity of heating unit 04, can
So that casing 03 directly acquires thermal energy caused by heating unit 04, there is no heats caused by additional connecting pipe to dissipate outside,
And then it can also reduce on the influence of the temperature of permanent magnet 02；In addition, the air intake vent 05 in the embodiment of the present invention is set to heating list
The lower end of member 04, may be located remotely from other core equipments of permanent magnet 02 and Permanent magnetic MR spectrometer, so as to effective
Influence of the heat radiation for avoiding air intake vent 05 from being given out to 02 temperature of permanent magnet.Casing 03 in the embodiment of the present invention, can
To be using glass material, that is, casing 03 can be glass tube, what transparent characteristic can heat nuclear magnetic tube 01 in realization
Meanwhile the acquisition of detector coil 07 and analysis probe 08 for the resonance signal of analysis object in nuclear magnetic tube 01 is not influenced also.
Preferably, in our embodiment, dual-layer vacuum glass pipe can also be set by casing 03, due to double glazing
Pipe has excellent heat insulation, and the heat in casing 03 can be made to be difficult to transfer out, thus can further be reduced
Heat largely distributes the influence for permanent magnet 02 in casing 03.In addition, after setting dual-layer vacuum glass pipe for casing 03,
Due to the reduction that heat distributes, the temperature of each position in casing 03 can also be kept more consistent, to also just improve pair
The temperature controlled control effect of analysis object in nuclear magnetic tube 01.
In practical applications, heating unit 04 may include having adding thermal resistance, can control add by circuit control in this way
The opening and closing of hot cell 04 and the calorific value for adjusting adding thermal resistance, and then the control to temperature in casing may be implemented；
In embodiments of the present invention, it can also connect by being equipped with control unit (not shown) and with casing 03
Temperature sensor 06 mode, come achieve the purpose that analysis object temperature control；Specifically, temperature sensor 06 can be with
It is set in outside casing 03 and is in the top of heating unit 04, on the one hand this setup can more accurately acquire set
On the other hand temperature data in pipe 03 is sheathed on outside casing 03, can also play the heat in barrier casing 03 to permanent magnet
02 effect distributed, and then can further reduce heat produced by heating unit 04 and the magnetic field of permanent magnet 02 is generated not
Good influence.
Control unit is used to control the working condition of heating unit 04 according to the acquisition data of temperature sensor 06.It is specific next
It says, is exactly to generate the working condition for controlling heating unit 04 with the acquisition data of temperature sensor 06 for input parameter
Control command to adjust the opening and closing or its current calorific value of heating unit 04 in real time；And then it realizes for nuclear magnetic tube
The real-time temperature control of analysis object, is always held at analysis object within the scope of default temperature in 01.
In practical applications, control unit can obtain module, threshold setting module, processing module and electricity by real time temperature
Control switch is constituted；Specifically, real time temperature obtains the real time temperature data that module is used to obtain temperature sensor acquisition；Section
Setup module is used to determine corresponding temperature range range according to the type for analyzing object in nuclear magnetic tube 01；Processing module is used for root
Temperature data and Current Temperatures section generate the control command of electric-controlled switch when factually.
Specifically, different temperature ranges can be arranged according to the difference of analysis object；For example, in the embodiment of the present invention
The analysis object of Permanent magnetic MR spectrometer may include crude oil, naphtha, kerosene, diesel oil, wax oil and lubricating oil etc..This
When, according to the different demands of every kind of oil plant, respectively corresponding temperature range is arranged in it.Using Permanent magnetic MR wave in this way
When spectrometer, it is possible, firstly, to which corresponding temperature range is arranged according to the difference of analysis object, then, it is real that real time temperature obtains module
When acquisition temperature sensor 06 acquisition data, processing module judges current temperature according to real time temperature data and temperature range
Whether degree needs to carry out analysis object what kind of temperature adjusting movement in temperature range；Specific regulative mode can be with
It is opening and closing heating unit 04, or, the fever heat of heating unit 04 is adjusted, to realize the temperature tune for analyzing object
Section.
Further, in embodiments of the present invention, it is also provided with fan (not shown) in air intake vent 06, in this way,
By being used cooperatively for fan and heating unit 04, it can further increase the temperature control effect and control effect for analyzing object
Rate.Specifically, when analysis object needs to cool down, specific temperature regulation mechanism be can be, and on the one hand close heating
Unit 04, at the same time it can also convey cold air into heating unit 04 and casing 03 by fan, at this point, can not only make to add
The rapid desuperheat of adding thermal resistance in hot cell 04 reduces and the heat of casing 03 is conveyed；On the other hand, cold air can also be into
Enter into casing 03 and directly cool down to analysis object, it is possible to accelerate the cooling for analyzing object；The present invention is implemented
Example can be used cooperatively with heating unit 04 by being equipped with fan in air inlet, realize and analysis object be heated up and cooled down
Bidirectional modulation, thus effectively raise for analyze object temperature control efficiency and effect.
Further, in embodiments of the present invention, heating unit 04 can also include thermal insulation layer；In this way, can be into one
Effective reduction heat the distributing to permanent magnet 02 of step, to avoid the accuracy for influencing resonance signal.It should be noted that right
In the selection of the material of thermal insulation layer, those skilled in the art can select according to actual needs, not do again specific
It limits.
In conclusion the Permanent magnetic MR spectrometer in the embodiment of the present invention, can the temperature to analysis object into
When row effectively controls, influence of the temperature for Permanent magnetic MR spectrometer stability is avoided, so that it is total to improve permanent-magnet type magnetic
The analysis precision when analysis needs to carry out temperature controlled analysis object of vibration wave spectrometer.
Further, in the prior art, it is difficult effectively to avoid when carrying out temperature control to analysis object for permanent magnet
Temperature interference；And the variation of permanent magnetism temperature, large effect can be generated to its magnetic field, and then will lead to the unevenness of its magnetostatic field
It is even；Then, magnetostatic field it is uneven further will lead to analysis object caused by resonance signal be difficult really to show
The structure and content of its molecule, therefore, the prior art quantitative analysis difficult to realize for analyzing object；Since the present invention is implemented
Example can influence magnetic field's regularity to avoid when carrying out temperature control to analysis object, so not only may be implemented for analyzing object
Qualitative analysis, can also realize for analyze object quantitative analysis.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.For any simple modification, equivalent change and modification that above-mentioned example embodiment is done,
Protection scope of the present invention should all be fallen into.
Claims (10)
1. a kind of Permanent magnetic MR spectrometer characterized by comprising
Casing is sheathed on outside nuclear magnetic tube；
Detector coil and analysis probe, are all set between described sleeve pipe and permanent magnet；
Heating unit, with cavity, which is connected to described sleeve pipe lower end, and the lower end of the heating unit is connected with and institute
State the air intake vent of cavity connection；
The heating unit is used to that thermal energy to be transmitted in described sleeve pipe by heating the chamber intracorporal air.
2. Permanent magnetic MR spectrometer according to claim 1, which is characterized in that the heating unit includes heating electric
Resistance.
3. Permanent magnetic MR spectrometer according to claim 2, which is characterized in that further include: control unit and with institute
State the temperature sensor of casing-contact connection；
Described control unit is used to control the working condition of the heating unit according to the acquisition data of the temperature sensor.
4. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that the material of described sleeve pipe is glass.
5. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that described sleeve pipe includes double-layer vacuum glass
Glass pipe.
6. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that described control unit includes warm in real time
Degree obtains module, threshold setting module, processing module and electric-controlled switch；
The real time temperature obtains the real time temperature data that module is used to obtain the temperature sensor acquisition；
The threshold setting module is used to be determined according to the type of the analysis object of the Permanent magnetic MR spectrometer corresponding
Temperature threshold range；
The processing module is used to generate the control of the electric-controlled switch according to the real time temperature data and Current Temperatures section
Order.
7. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that the heating unit further includes heat-insulated
Layer.
8. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that the air intake vent is additionally provided with fan.
9. Permanent magnetic MR spectrometer according to claim 3, which is characterized in that the temperature sensor is sheathed on institute
It states outside casing.
10. according to claim 1 to any Permanent magnetic MR spectrometer in 9, which is characterized in that the permanent-magnet type magnetic
The analysis object of resonance spectrometer includes:
Crude oil, naphtha, kerosene, diesel oil, wax oil and lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638247.0A CN109540957A (en) | 2018-12-29 | 2018-12-29 | A kind of Permanent magnetic MR spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811638247.0A CN109540957A (en) | 2018-12-29 | 2018-12-29 | A kind of Permanent magnetic MR spectrometer |
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| Publication Number | Publication Date |
|---|---|
| CN109540957A true CN109540957A (en) | 2019-03-29 |
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| CN201811638247.0A Pending CN109540957A (en) | 2018-12-29 | 2018-12-29 | A kind of Permanent magnetic MR spectrometer |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030160614A1 (en) * | 2002-02-28 | 2003-08-28 | Hiroshi Morita | Nuclear magnetic resonance apparatus probe |
| US20070096734A1 (en) * | 2005-10-28 | 2007-05-03 | Varian, Inc. | Anticipative temperature regulation of cryogenic NMR probes |
| CN101692122A (en) * | 2009-10-10 | 2010-04-07 | 苏州纽迈电子科技有限公司 | Temperature control system for nuclear magnetic resonance spectrometer |
| CN101949867A (en) * | 2010-09-02 | 2011-01-19 | 中国海洋石油总公司 | Nuclear magnetic resonance imaging gripper |
| CN101975788A (en) * | 2010-09-01 | 2011-02-16 | 苏州纽迈电子科技有限公司 | Method for identifying quality of edible oil with low-field NMR (Nuclear Magnetic Resonance) |
| CN102954977A (en) * | 2012-11-13 | 2013-03-06 | 中国地质大学（北京） | Nuclear magnetic resonance instrument probe auxiliary device for carrying out steam saturation on porous media |
| CN209356432U (en) * | 2018-12-29 | 2019-09-06 | 北京泓泰天诚科技有限公司 | A kind of Permanent magnetic MR spectrometer |
-
2018
- 2018-12-29 CN CN201811638247.0A patent/CN109540957A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030160614A1 (en) * | 2002-02-28 | 2003-08-28 | Hiroshi Morita | Nuclear magnetic resonance apparatus probe |
| US20070096734A1 (en) * | 2005-10-28 | 2007-05-03 | Varian, Inc. | Anticipative temperature regulation of cryogenic NMR probes |
| CN101692122A (en) * | 2009-10-10 | 2010-04-07 | 苏州纽迈电子科技有限公司 | Temperature control system for nuclear magnetic resonance spectrometer |
| CN101975788A (en) * | 2010-09-01 | 2011-02-16 | 苏州纽迈电子科技有限公司 | Method for identifying quality of edible oil with low-field NMR (Nuclear Magnetic Resonance) |
| CN101949867A (en) * | 2010-09-02 | 2011-01-19 | 中国海洋石油总公司 | Nuclear magnetic resonance imaging gripper |
| CN102954977A (en) * | 2012-11-13 | 2013-03-06 | 中国地质大学（北京） | Nuclear magnetic resonance instrument probe auxiliary device for carrying out steam saturation on porous media |
| CN209356432U (en) * | 2018-12-29 | 2019-09-06 | 北京泓泰天诚科技有限公司 | A kind of Permanent magnetic MR spectrometer |
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