CN105263197A - Uniform non-magnet heating device for nuclear magnetic resonance gyroscope - Google Patents
Uniform non-magnet heating device for nuclear magnetic resonance gyroscope Download PDFInfo
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- CN105263197A CN105263197A CN201510548791.6A CN201510548791A CN105263197A CN 105263197 A CN105263197 A CN 105263197A CN 201510548791 A CN201510548791 A CN 201510548791A CN 105263197 A CN105263197 A CN 105263197A
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Abstract
The invention discloses a uniform non-magnet heating device for a nuclear magnetic resonance gyroscope. The overall device is a cylinder and comprises four layers of cylindrical magnetic shielding metal shells and a heating plate from the inside to the outside, wherein the first layer of magnetic shielding shell surrounds and fixes a nuclear magnetic resonance device; the second layer of magnetic shielding shell sleeves the outside of the first layer of magnetic shielding shell; a heat-conducting pouring sealant is filled between the second layer of magnetic shielding shell and the side wall of the first layer of magnetic shielding shell; the third layer of magnetic shielding shell sleeves the outside of the second layer of magnetic shielding shell; the heat-conducting pouring sealant is filled between the third layer of magnetic shielding shell and the side wall of the second layer of magnetic shielding shell; the fourth layer of magnetic shielding shell sleeves the outside of the third layer of magnetic shielding shell; a heat-insulating pouring sealant is filled between the fourth layer of magnetic shielding shell and the third layer of magnetic shielding shell; and the heating plate and the third layer of magnetic shielding shell are pasted by heat-conducting silica gel.
Description
Technical field
The present invention relates to the technical field of heating of magnetic resonance gyroscope instrument, particularly a kind of even without magnet heater for magnetic resonance gyroscope instrument, this device is mainly used in the fields such as strategy, tactical weapon equipment, microminiature spacecraft.
Background technology
Miniature magnetic resonance gyroscope has the characteristics such as small size, low-power consumption, high-performance, great dynamic range, has become research emphasis and the focus of novel inertia device.The performance of magnetic resonance gyroscope is subject to the impact of nuclear spin macroscopic moment, and directly relevant to alkali metal atom density.For improving gyro signal to noise ratio, need atomic air chamber to be heated to more than 100 DEG C, thus obtain high density vapour of an alkali metal, and suppressed by optimizing heating structure to heat the negative effect brought to gyro in magnetic field.
Hot-blast Heating is preferably without magnetic heater means, but has that volume is large, the high shortcoming that cannot overcome of power consumption, cannot be used for miniature magnetic resonance gyroscope.California, USA university Irving branch school A.Shkel seminar utilizes copper rod bottom-heated atomic air chamber, heating-up temperature reaches 130 DEG C, but the non-uniform magnetic-field that straight wire is introduced makes the T2 of inert gas macroscopic moment reduce, and thermal uniformity difference causes gyro to be deteriorated.The people such as Nuo Ge company of the U.S. adopt bidirectional current mode at bottom-heated glass air chamber, obtain high density alkali metal atom steam, but still there is the excessive problem of air chamber transverse magnetic field gradient.
Summary of the invention
The technical problem that the present invention solves is: overcome the deficiencies in the prior art, provides a kind of even without magnet heating means for magnetic resonance gyroscope instrument, the impact that the magnetic field preventing electric heating from producing is caused nuclear magnetic resonance device.
Technical scheme of the present invention is: a kind of even without magnet heater for magnetic resonance gyroscope instrument, and whole device is a cylinder, comprises 4 layers of cylindrical magnetic shielded metal shell and heating plate from inside to outside altogether; Ground floor magnetic screen shell surrounds and fixes nuclear magnetic resonance device; Second layer magnetic screen casing, outside ground floor magnetic screen shell, is filled with heat conduction casting glue between second layer magnetic screen shell and ground floor magnetic screen side wall of outer shell; Third layer magnetic screen casing, outside second layer magnetic screen, is filled with heat conduction casting glue between third layer magnetic screen shell and second layer magnetic screen sidewall; 4th layer of magnetic screen casing, outside third layer magnetic screen shell, is filled with heat insulation casting glue between the 4th layer of magnetic screen shell and third layer magnetic screen shell; Heat conductive silica gel is adopted to paste between heating plate and third layer magnetic screen shell.
Do not contact each other between described 4 layers of magnetic screen shell, and leave the gap of 1mm between layers.
Heat insulation casting glue is adopted to fill between heating plate and the 4th layer of magnetic screen shell.
Heat insulation solid-state material for fixing each magnetic screen shell is all installed between the top layer of each layer magnetic screen shell and between the bottom of each layer magnetic screen shell.
The present invention's advantage is compared with prior art:
The invention provides a kind of homogeneous body heater for magnetic resonance gyroscope instrument, heating arrangement, outside magnetic shielding material, can reduce the magnetic field of heating current generation to the impact of nuclear magnetic resonance device; Adopt heat conduction casting glue to fill between multi-layer shield, increase pyroconductivity; Outermost layer magnetic screen adopts heat insulation casting glue to fill, and reduces heat losses; Cylindrical side wall adopts heating plate heating, and heat can be made internally evenly to concentrate, and ensures nuclear magnetic resonance device thermally equivalent.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention schematic diagram.
Embodiment
Fig. 1 gives the longitudinal schematic diagram realizing homogeneous body heating arrangement device.Whole device is a cylinder, and wrap up 4 layers of cylindrical magnetic shielded metal shell altogether from inside to outside, this shell is made by permalloy material.Ground floor magnetic screen shell 1, is used for surrounding and fixes nuclear magnetic resonance device 16; Second layer magnetic screen shell 2, and be filled with heat conduction casting glue 12 between ground floor magnetic screen shell 1; Third layer magnetic screen shell 3, and be filled with heat conduction casting glue 12 between second layer magnetic screen 2; 4th layer of magnetic screen shell 4, and be filled with heat insulation casting glue 11 between third layer magnetic screen shell.
In order to reach best Magnetic Shielding Effectiveness, can not contact each other between 4 layers of magnetic screen shell, 1mm gap will be left between layers.Due to the existence in gap, thermal conductivity is reduced, therefore will fill heat conduction casting glue 12 between the layers.
Heat conductive silica gel 15 is adopted to paste between heating plate 14 and third layer magnetic screen shell 3, like this, the heat of heating plate passes to magnetic screen shell 3 by heat conductive silica gel 15, magnetic screen shell 3 passes to magnetic screen shell 2 by heat conduction casting glue, and passes to nuclear magnetic resonance device 16 eventually through magnetic screen shell 1.
For preventing heat from leaking from the side, between heating plate 14 and the 4th layer of magnetic screen shell 4, heat insulation casting glue 11 is adopted to fill.For preventing heat from leaking from top layer or bottom, top layer and bottom are all equipped with the heat insulation solid-state material 5 of fixing magnetic screen shell, can select nylon.The design of heat-barrier material, makes heating plate 14 can only by cylinder side wall to nuclear magnetic resonance device 16 homogeneous heating.
The content that the present invention is not described in detail belongs to the known technology of those skilled in the art.
Claims (4)
1. even without a magnet heater for magnetic resonance gyroscope instrument, is characterized in that: whole device is a cylinder, comprises 4 layers of cylindrical magnetic shielded metal shell and heating plate (14) from inside to outside altogether; Ground floor magnetic screen shell (1) surrounds and fixes nuclear magnetic resonance device (16); Second layer magnetic screen shell (2) is enclosed within ground floor magnetic screen shell (1) outward, is filled with heat conduction casting glue (12) between second layer magnetic screen shell (2) and ground floor magnetic screen shell (1) sidewall; Third layer magnetic screen shell (3) is enclosed within second layer magnetic screen (2) outward, is filled with heat conduction casting glue (12) between third layer magnetic screen shell (3) and second layer magnetic screen (2) sidewall; 4th layer of magnetic screen shell (4) is enclosed within third layer magnetic screen shell (3) outward, is filled with heat insulation casting glue (11) between the 4th layer of magnetic screen shell (4) and third layer magnetic screen shell (3); Heat conductive silica gel (15) is adopted to paste between heating plate (14) and third layer magnetic screen shell (3).
2. a kind of even without magnet heater for magnetic resonance gyroscope instrument according to claim 1, is characterized in that: do not contact each other between described 4 layers of magnetic screen shell, and leave the gap of 1mm between layers.
3. a kind of even without magnet heater for magnetic resonance gyroscope instrument according to claim 1, is characterized in that: adopt heat insulation casting glue (11) to fill between heating plate (14) and the 4th layer of magnetic screen shell (4).
4. a kind of even without magnet heater for magnetic resonance gyroscope instrument according to claim 1, is characterized in that: between the top layer of each layer magnetic screen shell and all install the heat insulation solid-state material (5) being used for fixing each magnetic screen shell between the bottom of each layer magnetic screen shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548791.6A CN105263197B (en) | 2015-08-31 | 2015-08-31 | A kind of uniform no magnet heater for magnetic resonance gyroscope instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510548791.6A CN105263197B (en) | 2015-08-31 | 2015-08-31 | A kind of uniform no magnet heater for magnetic resonance gyroscope instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105263197A true CN105263197A (en) | 2016-01-20 |
| CN105263197B CN105263197B (en) | 2018-02-06 |
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| CN201510548791.6A Active CN105263197B (en) | 2015-08-31 | 2015-08-31 | A kind of uniform no magnet heater for magnetic resonance gyroscope instrument |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767748A (en) * | 2016-12-19 | 2017-05-31 | 北京航空航天大学 | A kind of atomic air chamber alkali metal position regulator |
| CN108061547A (en) * | 2016-11-09 | 2018-05-22 | 北京自动化控制设备研究所 | A kind of gas chamber nuclear spin relaxation test device |
| CN108731661A (en) * | 2018-05-04 | 2018-11-02 | 北京航天控制仪器研究所 | A kind of gas chamber for miniature nuclear magnetic resonance gyroscope heats integrated unit structure |
| CN109068414A (en) * | 2018-06-08 | 2018-12-21 | 中北大学 | Thick-film hybrid integration heating device and preparation method towards miniature atomic air chamber |
| CN109475015A (en) * | 2018-11-21 | 2019-03-15 | 中国船舶重工集团公司第七0七研究所 | A kind of cage for magnetic resonance gyroscope instrument is without magnetic heater |
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| US4651565A (en) * | 1984-07-05 | 1987-03-24 | The Charles Stark Draper Laboratory, Inc. | Electromagnetic gyroscope |
| CN103269527A (en) * | 2013-04-21 | 2013-08-28 | 北京航空航天大学 | Non-magnetic electrical heating system used for atomic spin gyroscope |
| CN103415196A (en) * | 2013-08-07 | 2013-11-27 | 北京航空航天大学 | Small-sized atom magnetic shielding and magnetic control device |
| CN104640426A (en) * | 2014-12-03 | 2015-05-20 | 北京原力辰超导技术有限公司 | Magnetic shielding device |
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2015
- 2015-08-31 CN CN201510548791.6A patent/CN105263197B/en active Active
Patent Citations (4)
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| US4651565A (en) * | 1984-07-05 | 1987-03-24 | The Charles Stark Draper Laboratory, Inc. | Electromagnetic gyroscope |
| CN103269527A (en) * | 2013-04-21 | 2013-08-28 | 北京航空航天大学 | Non-magnetic electrical heating system used for atomic spin gyroscope |
| CN103415196A (en) * | 2013-08-07 | 2013-11-27 | 北京航空航天大学 | Small-sized atom magnetic shielding and magnetic control device |
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| 余传佩 等: "磁屏蔽技术及其应用", 《科技创新与应用》 * |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108061547A (en) * | 2016-11-09 | 2018-05-22 | 北京自动化控制设备研究所 | A kind of gas chamber nuclear spin relaxation test device |
| CN106767748A (en) * | 2016-12-19 | 2017-05-31 | 北京航空航天大学 | A kind of atomic air chamber alkali metal position regulator |
| CN108731661A (en) * | 2018-05-04 | 2018-11-02 | 北京航天控制仪器研究所 | A kind of gas chamber for miniature nuclear magnetic resonance gyroscope heats integrated unit structure |
| CN108731661B (en) * | 2018-05-04 | 2020-06-09 | 北京航天控制仪器研究所 | Air chamber heating integrated unit structure for miniature nuclear magnetic resonance gyroscope |
| CN109068414A (en) * | 2018-06-08 | 2018-12-21 | 中北大学 | Thick-film hybrid integration heating device and preparation method towards miniature atomic air chamber |
| CN109068414B (en) * | 2018-06-08 | 2022-03-25 | 中北大学 | Thick film hybrid integrated heating device for micro atomic gas chamber and preparation method |
| CN109475015A (en) * | 2018-11-21 | 2019-03-15 | 中国船舶重工集团公司第七0七研究所 | A kind of cage for magnetic resonance gyroscope instrument is without magnetic heater |
| CN109475015B (en) * | 2018-11-21 | 2021-05-07 | 中国船舶重工集团公司第七0七研究所 | Cage type non-magnetic heater for nuclear magnetic resonance gyroscope |
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| CN105263197B (en) | 2018-02-06 |
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