CN104505273A - Non-magnetic heating device for nuclear magnetic resonance gyroscope - Google Patents
Non-magnetic heating device for nuclear magnetic resonance gyroscope Download PDFInfo
- Publication number
- CN104505273A CN104505273A CN201410783778.4A CN201410783778A CN104505273A CN 104505273 A CN104505273 A CN 104505273A CN 201410783778 A CN201410783778 A CN 201410783778A CN 104505273 A CN104505273 A CN 104505273A
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- magnetic
- heating
- calandria
- skeleton
- heater
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/60—Electronic or nuclear magnetic resonance gyrometers
- G01C19/62—Electronic or nuclear magnetic resonance gyrometers with optical pumping
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Induction Heating (AREA)
Abstract
The invention provides a non-magnetic heating device for a nuclear magnetic resonance gyroscope. The device consists of a heating body, a heating wire, a heat insulating framework and magnetic compensation coils, wherein the heating body is made of a non-magnetic high-heat-conductivity material, and is of a hollow structure; an atomic gas chamber is placed into the heating body for being uniformly heated; the four faces of the outer side of the heating body are provided with heating grooves; the nickel-chromium alloy non-magnetic heating wire can be placed into the heating grooves positively or reversely, thereby constructing a spatial symmetrical non-magnetic heating structure under the constraints of the heating grooves; after the heating body and the heating wire are fixedly assembled, the combination is fixed in the polytetrafluoroethylene heat insulating framework; three groups of winding grooves are formed in the heat insulating framework for winding enameled wires, thereby constructing three groups of orthogonal Helmholtz magnetic compensation coils for compensating a residual magnetic field. Compared with the prior art, the non-magnetic heating device has the advantages of compact structure, easiness in assembly, easiness in implementing engineering, high heating uniformity, high heating efficiency and high heating magnetic field counteracting capability.
Description
Technical field
The present invention relates to the technical field of heating of magnetic resonance gyroscope instrument, particularly a kind of for magnetic resonance gyroscope instrument without magnetic heater, 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
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, there is provided a kind of for magnetic resonance gyroscope instrument without magnetic heater, this device adopts high order spatial symmetrical structure coiling heater coil, and realize heating without magnetic of atomic air chamber in conjunction with last of the twelve Earthly Branches nurse hertz bucking coil, this realizes heating without magnetic of atomic air chamber without magnetic heater by optimizing heating structure, makes more compact structure, is easier to assembling, heating uniformity is better, and heating magnetic field cancellation ability is stronger.
Above-mentioned purpose of the present invention is achieved by following technical proposals:
For magnetic resonance gyroscope instrument without a magnetic heater, comprise calandria 1, heater strip 2, adiabatic skeleton 3 and magnetic compensation coil 4, wherein;
Offer the cube of hollow cavity centered by calandria 1, and described cubical side offers square hole 101, atomic air chamber 5 to be heated puts into the hollow cavity of calandria 1 by described square hole 101; One group of described calandria 1 or two groups of outer surfaces be mutually symmetrical offer the heating tank 102 of continuous distribution, heater strip 2 fixed placement is in described heating tank 102; The outer surface of described calandria 1 is chosen two groups of parallel and symmetrical planes, and a loophole 103 is offered between the described plane often organizing Parallel Symmetric, and the light path that described two loopholes are formed is perpendicular to one another crossing, and the center superposition of intersection point and atomic air chamber to be heated;
Adiabatic skeleton 3 comprises adiabatic skeleton shell 301, adiabatic skeleton upper cover 302 and air chamber gland 303, wherein, calandria 1 puts into adiabatic skeleton shell 301 after fixed placement heater strip 2, and use adiabatic skeleton upper cover 302 to fix, the side of adiabatic skeleton shell 301 has skeleton square hole 304, and atomic air chamber 5 to be heated is placed in the hollow cavity center of calandria 1 successively by described skeleton square hole 304 and square hole 101; Atomic air chamber 5 to be heated is fixed in calandria 1 by described air chamber gland 303;
The outer surface of adiabatic skeleton 3 offers winding slot 305, and magnetic compensation coil 4 is wound in described winding slot 305, can be used for compensate for residual magnetic field.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described heater strip 2 is through insulation processing and head and the tail two ends after putting together, carry out cabling in described heating tank 102, and the heating current direction namely and in the heater strip of putting together is contrary.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described calandria 1 adopts without magnetic high thermal conductivity materials.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described is chosen for red copper without magnetic high thermal conductivity materials.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, the heating tank (102) that described calandria (1) outer surface is offered is alternatively distributed concaveconvex structure, wherein, in described concaveconvex structure, the recess connected and the deep equality of bossing, and heater strip (2) is at the alternatively distributed concaveconvex structure constraint downward cabling of described heating tank (102).This cabling mode can play erasure effect, thus contributes to realizing without magnetic heating effect.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described heater strip 2 adopts non-magnetic material.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described non-magnetic material is chosen for nichrome.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described adiabatic skeleton 3 adopts polytetrafluoroethylene heat-insulating material.
Above-mentioned for magnetic resonance gyroscope instrument without magnetic heater, described magnetic compensation coil 4 is three groups of orthogonal helmholtz coils.
The present invention compared with prior art has the following advantages:
(1), in the present invention calandria adopts red copper high thermal conductivity materials, and adopts hollow type heating arrangement, and 5 faces therefore adopting apparatus of the present invention can realize hot atom air chamber are heated simultaneously, make the air chamber efficiency of heating surface higher, heating evenly;
(2), in the present invention head and the tail and the sense of current be placed in the heater strip in heating tank is contrary, namely can the raising efficiency of heating surface, and bidirectional current can offset most heating magnetic field, in addition heating tank adopts concavo-convex alternatively distributed structure can offset the remnant field of bidirectional current further, thus contributes to realizing heating without magnetic;
(3), adiabatic skeleton of the present invention adopts polytetrafluoroethylmaterial material, and its heat-insulating property is good, effectively can reduce the power consumption of insulating process;
(4), the present invention adopts three groups of last of the twelve Earthly Branches nurse hertz magnetic compensation coil windings on adiabatic skeleton, can provide uniform compensating field, thus improve gyrostatic performance.
Accompanying drawing explanation
Fig. 1 is the explosive view without magnetic heater of the present invention;
Fig. 2 is the structural representation without calandria in magnetic heater of the present invention;
Fig. 3 is the structural representation without skeleton adiabatic in magnetic heater of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
The explosive view without magnetic heater as shown in Figure 1, provided by the inventionly comprises calandria 1, heater strip 2, adiabatic skeleton 3 and magnetic compensation coil 4 for magnetic resonance gyroscope instrument without magnetic heater.
Wherein, the structural representation of calandria as shown in Figure 2, the cube of hollow cavity is offered centered by calandria 1, and described cubical side offers square hole 101, atomic air chamber 5 to be heated puts into the hollow cavity of calandria 1 by described square hole 101, can realize during heating heating 5 faces of atomic air chamber 5, the air chamber efficiency of heating surface made is higher simultaneously.And calandria 1 adopts red copper material, according to the computing formula of material thermal resistance λ, because calandria have employed the high material of thermal conductivity in the present invention, the thermal resistance of generation is little, and therefore temperature distribution gradients is little, and thermal uniformity is good.Wherein, the computing formula of material thermal resistance is as follows:
λ＝l/kA
T
Wherein, l is heat conduction thickness, A
tfor heat-conducting area, k is conductive coefficient.
And can find out in fig. 2, the outer surface of calandria 1 offers the heating tank 102 of continuous distribution, this heating tank 102 is alternatively distributed concaveconvex structure, wherein, in described concaveconvex structure, the recess connected and the deep equality of bossing, and heater strip 2 is at the alternatively distributed concaveconvex structure constraint downward cabling of described heating tank 102, namely heater strip 2 fixed placement is in described heating tank 102.Wherein, this heater strip 2 is through insulation processing and head and the tail two ends putting together, be folded into and put together two sections of heater strips in centre position by a heater strip through insulation processing, when heating, respectively using and the heater strip head end of putting together and tail end as electric current input port and electric current delivery outlet, therefore after this heated filament 2 carries out cabling in described heating tank 102, and heating current direction in the heater strip of putting together is contrary.This two-way positive and negative cabling can improve the efficiency of heating surface, and according to the relation in electric current and magnetic field, Bidirectional heating electric current in heating tank 102 can offset most heating magnetic field, and the space symmetr that heating tank is formed is without magnetic heating arrangement, can offset the remnant field of bidirectional current further.
Heater strip 2 adopts nichrome in the present invention, and this material permeability is low, can not magnetize.Relation between known heat production rate and conductivity is expressed as follows:
E＝I
2ρ/A
2
Wherein, I is electric current, and ρ is resistivity, and A is heating wire cross-sectional area.And the magnetic field produced around electric current can be simply expressed as follows:
B＝μ
0I/2R
Wherein, μ
0=4 π × 10
-3h/m, I are electric current, and R is the distance of distance of wire.Because the conductivity of heater strip is high, the heating current that same heating power is corresponding is little, therefore visible according to the relation in electric current and magnetic field, reduces heating current and also just equals to decrease heating magnetic field.
The present invention chooses two groups of parallel and symmetrical planes on the outer surface of calandria 1, and offer a loophole 103 described often group between Parallel Symmetric plane, and the light path that described two loopholes are formed is perpendicular to one another crossing, and the center superposition of intersection point and atomic air chamber to be heated.This structure can guarantee pumping laser in gyroscope and the orthogonal center through atomic air chamber 5 of exploring laser light.
The structural representation of adiabatic skeleton as shown in Figure 3, adiabatic skeleton 3 comprises adiabatic skeleton shell 301, adiabatic skeleton upper cover 302 and air chamber gland 303.Wherein, these three parts all adopt polytetrafluoroethylmaterial material, and the heat-insulating property of this material is good, can reduce the power consumption of insulating process.
Calandria 1 puts into adiabatic skeleton shell 301 after fixed placement heater strip 2, and use adiabatic skeleton upper cover 302 to fix, the side of adiabatic skeleton shell 301 has skeleton square hole 304, and atomic air chamber 5 to be heated is placed in the hollow cavity center of calandria 1 successively by described skeleton square hole 304 and square hole 101; Atomic air chamber 5 to be heated is fixed in calandria 1 by described air chamber gland 303.
The outer surface of adiabatic skeleton 3 offers winding slot 305, and magnetic compensation coil 4 is wound in described winding slot 305, can be used for compensate for residual magnetic field.The magnetic field of known coil group can be expressed as follows:
Wherein, μ
0=4 π × 10
-3h/m, I are electric current, N
0for coil turn, R is coil nominal radius, and X is the distance at coil axis Shang Moudianzhi center.Helmholtz coil spacing a equals coil radius R, provable by theory calculate, the magnetic field of coil groups axis centre place in a big way in very even.Therefore, the present invention adopts helmholtz coil as magnetic compensation coil, can provide uniform compensating field, thus improve gyrostatic performance for atomic air chamber.
Embodiment:
For magnetic resonance gyroscope instrument without a magnetic heater, wherein, calandria adopts T2 red copper, thermal conductivity is 401W/ (m. DEG C), the structure of this calandria adopts hollow form, and side has square hole, atomic air chamber can be put into the inside of calandria by this square hole.Four faces outside calandria have heating tank.Heater strip adopts nichrome heater strip, all-in resistance 3 Ω, forward and reversely puts into heating tank, and at the constraint downward cabling of heating tank, constitutes space symmetr without magnetic heating arrangement.In real work, heating current is 2A, and heating gross power is 12W.When starting to heat, calandria is as same cooking stove, and can heat 5 faces of atomic air chamber, the efficiency of heating surface is high simultaneously, and the temperature difference of actual measurement calandria is less than 1 DEG C.The efficiency of heating surface is also very high, from room temperature, air chamber is heated to 100 DEG C and only needs 15min.
Adiabatic skeleton comprises adiabatic skeleton shell, adiabatic skeleton upper cover and air chamber gland, put into adiabatic skeleton shell after calandria and heater strip are mounted with and use adiabatic skeleton upper cover to fix, on adiabatic skeleton shell, side also has square hole, atomic air chamber can be put into calandria inside center by square hole.Air chamber gland the most at last atomic air chamber is fixed in calandria.Adiabatic skeleton all adopts polytetrafluoroethylmaterial material, and thermal conductivity is 0.256W/ (m. DEG C), wall thickness 4mm, and heat-insulating property is good, and needed for insulating process, heating current only needs 0.1A, and insulation power consumption only needs 0.03W.
Adiabatic skeleton has the orthogonal magnetic compensation coil of winding slot coiling three groups, adopts the form of helmholtz coil, for compensate for residual magnetic field.Helmholtz coil magnetic field can be the field homogeneity district that atomic air chamber provides 9mm × 9mm × 9mm, and with Bidirectional heating electric current, space symmetr coordinates without magnetic heating arrangement finally can by heating field compensation to ~ nT magnitude.
The above; be only the present invention's embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
The content be not described in detail in specification of the present invention belongs to the known technology of professional and technical personnel in the field.
Claims (9)
1. for magnetic resonance gyroscope instrument without a magnetic heater, it is characterized in that: comprise calandria (1), heater strip (2), adiabatic skeleton (3) and magnetic compensation coil (4), wherein;
The cube of hollow cavity is offered centered by calandria (1), and described cubical side offers square hole (101), atomic air chamber to be heated (5) puts into the hollow cavity of calandria (1) by described square hole (101); One group of described calandria (1) or two groups of outer surfaces be mutually symmetrical offer the heating tank (102) of continuous distribution, heater strip (2) fixed placement is in described heating tank (102); The outer surface of described calandria (1) is chosen two groups of parallel and planes of symmetry, and offer a loophole (103) described often group between Parallel Symmetric plane, and the light path that described two loopholes are formed is perpendicular to one another crossing, and the center superposition of intersection point and atomic air chamber to be heated;
Adiabatic skeleton (3) comprises adiabatic skeleton shell (301), adiabatic skeleton upper cover (302) and air chamber gland (303), wherein, adiabatic skeleton shell (301) is put into after the upper fixed placement heater strip (2) of calandria (1), and use adiabatic skeleton upper cover (302) fixing, the side of adiabatic skeleton shell (301) has skeleton square hole (304), and atomic air chamber to be heated (5) is placed in the hollow cavity center of calandria (1) successively by described skeleton square hole (304) and square hole (101); Atomic air chamber to be heated (5) is fixed in calandria (1) by described air chamber gland (303);
The outer surface of adiabatic skeleton (3) offers winding slot (305), and magnetic compensation coil (4) is wound in described winding slot (305).
2. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described heater strip (2) is through insulation processing and head and the tail two ends after putting together, in described heating tank (102), carry out cabling, the heating current direction namely and in the heater strip of putting together is contrary.
3. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described calandria (1) adopt without magnetic high thermal conductivity materials.
4. according to claim 4 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described is chosen for red copper without magnetic high thermal conductivity materials.
5. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: the heating tank (102) that described calandria (1) outer surface is offered is alternatively distributed concaveconvex structure, wherein, in described concaveconvex structure, the recess connected and the deep equality of bossing, and heater strip (2) is at the alternatively distributed concaveconvex structure constraint downward cabling of described heating tank (102).
6. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described heater strip (2) adopts non-magnetic material.
7. according to claim 6 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described non-magnetic material is chosen for nichrome.
8. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described adiabatic skeleton (3) adopts polytetrafluoroethylene heat-insulating material.
9. according to claim 1 a kind of for magnetic resonance gyroscope instrument without magnetic heater, it is characterized in that: described magnetic compensation coil (4) is three groups of orthogonal helmholtz coils.
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| CN201410783778.4A CN104505273B (en) | 2014-12-16 | 2014-12-16 | A kind of heater without magnetic for magnetic resonance gyroscope instrument |
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| CN104505273B CN104505273B (en) | 2016-08-24 |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819712A (en) * | 2015-04-27 | 2015-08-05 | 北京航天控制仪器研究所 | Magnetic compensation coil structural component for miniature nuclear magnetic resonance gyroscope |
| CN105430770A (en) * | 2015-10-30 | 2016-03-23 | 北京航天控制仪器研究所 | Multilayer nonmagnetic heating device used for miniature nuclear magnetic resonance gyroscope |
| CN105451379A (en) * | 2015-11-03 | 2016-03-30 | 北京自动化控制设备研究所 | Microminiature spiral winding ring type electric heating plate |
| CN105467822A (en) * | 2015-12-23 | 2016-04-06 | 北京航天控制仪器研究所 | Small CPT atomic clock physical system |
| CN105509726A (en) * | 2015-12-30 | 2016-04-20 | 北京航天控制仪器研究所 | Time-sharing magnetic compensation method used for nuclear magnetic resonance gyroscope |
| CN106024260A (en) * | 2016-07-12 | 2016-10-12 | 北京航天控制仪器研究所 | Double-coil structure for nuclear magnetic resonance gyroscope high-precision magnetic field control |
| CN106089180A (en) * | 2016-05-26 | 2016-11-09 | 中国石油集团渤海钻探工程有限公司 | A kind of device and method for intelligent drilling instrument magnetic compensation |
| CN108322950A (en) * | 2017-12-27 | 2018-07-24 | 中国船舶重工集团公司第七0研究所 | A kind of electrical heating method of no magnetic |
| 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 |
| CN109307683A (en) * | 2017-07-28 | 2019-02-05 | 丹东东方测控技术股份有限公司 | A kind of temperature control device for industrial nuclear magnetic resonance permanent magnet systems |
| 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 |
| CN110411432A (en) * | 2019-07-08 | 2019-11-05 | 北京航天控制仪器研究所 | A kind of double-layer heating thermal device of SERF atomic air chamber |
| CN106989759B (en) * | 2017-04-24 | 2020-01-03 | 北京航空航天大学 | Experiment platform structure of nuclear magnetic resonance gyroscope |
| CN111707251A (en) * | 2020-06-05 | 2020-09-25 | 中国科学院精密测量科学与技术创新研究院 | Magnetic resonance atomic gyroscope device with adjustable temperature gradient |
| CN111964657A (en) * | 2020-07-15 | 2020-11-20 | 北京航天控制仪器研究所 | Double-layer vacuum heat-insulation structure for atomic gyroscope |
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| CN104819712A (en) * | 2015-04-27 | 2015-08-05 | 北京航天控制仪器研究所 | Magnetic compensation coil structural component for miniature nuclear magnetic resonance gyroscope |
| CN105430770A (en) * | 2015-10-30 | 2016-03-23 | 北京航天控制仪器研究所 | Multilayer nonmagnetic heating device used for miniature nuclear magnetic resonance gyroscope |
| CN105430770B (en) * | 2015-10-30 | 2018-08-21 | 北京航天控制仪器研究所 | A kind of multilayer for miniature nuclear magnetic resonance gyroscope is without magnetic heating device |
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| CN105509726B (en) * | 2015-12-30 | 2018-06-01 | 北京航天控制仪器研究所 | A kind of timesharing magnetic compensation method for magnetic resonance gyroscope instrument |
| CN105509726A (en) * | 2015-12-30 | 2016-04-20 | 北京航天控制仪器研究所 | Time-sharing magnetic compensation method used for nuclear magnetic resonance gyroscope |
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| CN106089180B (en) * | 2016-05-26 | 2022-08-12 | 中国石油天然气集团有限公司 | Device and method for magnetic compensation of intelligent drilling tool |
| CN106024260B (en) * | 2016-07-12 | 2018-02-09 | 北京航天控制仪器研究所 | A kind of two coil configuration for the control of magnetic resonance gyroscope high accuracy magnetic field |
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| CN106989759B (en) * | 2017-04-24 | 2020-01-03 | 北京航空航天大学 | Experiment platform structure of nuclear magnetic resonance gyroscope |
| CN109307683A (en) * | 2017-07-28 | 2019-02-05 | 丹东东方测控技术股份有限公司 | A kind of temperature control device for industrial nuclear magnetic resonance permanent magnet systems |
| CN108322950A (en) * | 2017-12-27 | 2018-07-24 | 中国船舶重工集团公司第七0研究所 | A kind of electrical heating method of no magnetic |
| 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 |
| 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 |
| 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 |
| CN110411432A (en) * | 2019-07-08 | 2019-11-05 | 北京航天控制仪器研究所 | A kind of double-layer heating thermal device of SERF atomic air chamber |
| CN110411432B (en) * | 2019-07-08 | 2021-04-13 | 北京航天控制仪器研究所 | Double-layer heating and heat-insulating device for SERF atomic air chamber |
| CN111707251A (en) * | 2020-06-05 | 2020-09-25 | 中国科学院精密测量科学与技术创新研究院 | Magnetic resonance atomic gyroscope device with adjustable temperature gradient |
| CN111707251B (en) * | 2020-06-05 | 2023-03-31 | 中国科学院精密测量科学与技术创新研究院 | Magnetic resonance atomic gyroscope device with adjustable temperature gradient |
| CN111964657A (en) * | 2020-07-15 | 2020-11-20 | 北京航天控制仪器研究所 | Double-layer vacuum heat-insulation structure for atomic gyroscope |
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