CN109186579A - A kind of portable no spin-exchange relaxation atomic gyroscope structure - Google Patents
A kind of portable no spin-exchange relaxation atomic gyroscope structure Download PDFInfo
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- CN109186579A CN109186579A CN201811299014.2A CN201811299014A CN109186579A CN 109186579 A CN109186579 A CN 109186579A CN 201811299014 A CN201811299014 A CN 201811299014A CN 109186579 A CN109186579 A CN 109186579A
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- 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
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Abstract
The invention discloses a kind of portable no spin-exchange relaxation atomic gyroscope structure, including alkali metal gas chamber fixing seat, without magnetoelectricity heating pedestal, field compensation coil rack, magnetic shielding cylinder, detection laser pedestal, detection light beam splitting component, optically pumped laser pedestal, pumping light expand the steady light intensity component of component, pumping light, main structure, positioning tool and support base.Alkali metal gas chamber fixing seat is used for fixed base metal air chamber, and no magnetoelectricity heating pedestal is for clamping oven.Detection light beam splitting component is using BS and Glan prism disjunctor fixed structure.Pumping light expands component and is embedded in the reinforcing rib of main structure.The steady light intensity component of pumping light is using PBS and liquid crystal phase retardation device disjunctor fixed structure.Main structure divides chamber to design using sunk type in conjunction with suspension type.Support base is used for the fixation of main structure, provides reference for installation for gyro.Structure of the invention is compact, symmetrical, small in size, light-weight, using optical module disjunctor fixed structure, enhances optical performance stability.
Description
Technical field
The present invention relates to a kind of portable no spin-exchange relaxation atomic gyroscope structure, which uses component sunk type
The fixed design with suspension type secure bond, has the characteristics that stable, compact and symmetrical, reduces the volume and weight of gyro,
Using optical module disjunctor fixed structure, the stability of optical property is enhanced.
Background technique
With the fast development of quantum techniques, the following long boat of support is also become using quantum sensor detection angle rate etc.
When, High Accuracy Inertial Navigation System development recent studies on direction.Currently, based on no spin-exchange relaxation (Spin-Exchange-
Relaxation-Free, SERF) atomic gyroscope of principle has the theoretical precision much higher than existing measurement means, and it can
It is minimized with realization, is integrated, by the concern of domestic and international related research institutes.
Study at present without spin-exchange relaxation atomic gyroscope, a part of volume is larger, and the design of small volume is only adopted
Divide cavity configuration with sunk type, though interfering with each other between each sections such as pumping light, detection light has been isolated, is detrimental to small-sized
Change, and structure is asymmetric, alkali metal gas chamber is located at gyro edge, is unfavorable for the practical application of angular rate measurement；In addition, existing
SERF atomic gyroscope inside do not account for the design of cabling channel, cause signal wire that can not stablize and neat fixation, introduce
Electricity interference；All easily cause optical characteristics unstable using the fixed each component of separate type mirror holder in existing SERF atomic gyroscope,
And it is unfavorable for the Miniaturization Design of gyroscope, increases the workload of dismounting.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the shortcomings of existing SERF atomic gyroscope structure, a kind of knot is provided
Symmetrical, the compact portable design of structure, component mirror holder disjunctor are fixed, strengthening part stability and convenient for miniaturization assembling and adjust
Examination, internal cabling channel rationally design, and reduce electricity interference.
The present invention solves above-mentioned technical problem the technical solution adopted is as follows: a kind of portable no spin-exchange relaxation atom
Gyroscope arrangement, including alkali metal gas chamber fixing seat, without magnetoelectricity heating pedestal, field compensation coil rack, magnetic shielding cylinder, detection
Laser pedestal, detection light beam splitting component, optically pumped laser pedestal, pumping light expand the steady light intensity component of component, pumping light, positioning
Tooling, main structure and support base.Alkali metal gas chamber fixing seat is used to clamp the spherical glass gas chamber equipped with alkali metal, no magnetoelectricity
For clamping alkali metal gas chamber fixing seat, and for pasting heating film, field compensation coil rack adds heating pedestal for no magnetoelectricity
Hot radical seat provides reference for installation, and is fastened by non-magnetic material screw, then realizes and main structure pumping light by shaft hole matching
The coaxial positioning of light hole.Magnetic shielding cylinder component is four layers of shielding construction, effectively improves the Magnetic Shielding Effectiveness of gyroscope, every layer of screen
It covers and positioning is realized by plastic support ring between cylinder, and realize that whole position is fixed eventually by demagnetization bar and positioning tool.
Detection laser pedestal is used for fixed test laser tube, and is fastened in main structure with screw suspension, provides for gyro stable
Detect radiant.Detection light beam splitting component is fixed BS and Glan prism disjunctor by Contiuum type mirror holder, and is fastened using screw
In main structure, detection light is divided into two bundles by BS, and a branch of conduct first via detection light enters magnetic cup after being polarized by Glan prism
Cartridge module is covered, another the second tunnel Shu Zuowei detection light is reflected into main structure bottom, by being again introduced into magnetic shielding cylinder after reflecting mirror
Component.Optically pumped laser pedestal is realized in main structure for fixing pumping light pipe, component by location hole and screw
Suspension is fixed, and stable pumping radiant is provided for gyro.Pumping light expands component and fixes and be embedded in through-hole by screw
In main structure reinforcing rib, saves space and improve pumping light and expand component stability.The steady light intensity component of pumping light uses Contiuum type
Mirror holder is fixed, and pumping light is divided into two bundles by PBS, wherein a branch of be used for stabilized intensity, another beam folds into main structure bottom for taking out
Transport light saturated absorption frequency stabilization.Main structure provides reference for installation for each component of gyroscope, and each component passes through the location hole in main structure
Positioning, and fastened using screw, support base provides stable benchmark for whole device.
The main structure divides chamber to design using sunk type in conjunction with suspension type, by pumping light path part, light path portion
Part, electricity plug are kept apart, and avoid interfering with each other between all parts, and utilize each positioning parts by location hole
Each component is fastened in main structure by screw.
The main structure is inserted into support base card slot by protrusion part of bottom, and is fastened on support base using screw
On, so as to improve the baseline stability of device, by the heat insulating mattress connection that thermal conductivity is low between main structure and support base, and
The temperature stability of main structure is improved, reduce each component inside gyro is influenced by variation of ambient temperature.
The detection light beam splitting component is fixed BS and Glan prism disjunctor using Contiuum type mirror holder, is fastened on using screw
In main structure, BS will test light and be divided into two bundles, and wherein light beam plays to the rear as first via detection light by Glan prism and enters
Magnetic shielding cylinder component, another light beam are reflected into main structure bottom, are used as the second tunnel after the reflecting mirror reflection by bottom installation
Detection light enters magnetic shielding cylinder component, and the second tunnel detection light direction is vertical with first via detection light direction, realizes twin shaft inertia angle
Speed measurement improves optical device mounting stability, and simplifies installation step.
The steady light intensity component of pumping light is fixed PBS and liquid crystal phase retardation device disjunctor using Contiuum type mirror holder, is utilized
Screw is fastened in main structure, and PBS is polarized for pumping light, and pumping light is divided into two bundles, wherein a branch of pass through steady light intensity
Device back reflection enters magnetic shielding cylinder component, and another beam is reflected into main structure bottom, uses after the reflecting mirror of bottom installation
In saturated absorption frequency stabilization.
The advantages of the present invention over the prior art are that:
(1) main structure of the present invention divides chamber to design using sunk type in conjunction with suspension type, by pumping light path part, detection light
Circuit unit, electricity plug are kept apart, that is, reduce gyroscope volume and weight, have important work to the integrated development of gyroscope
With, while interfering with each other between all parts is in turn avoided, and rationally design internal cabling channel, reduce electricity inside gyroscope
Learn noise jamming.
(2) main structure of the present invention is inserted into support base card slot by protrusion part of bottom, and is fastened on support using screw
On pedestal, stable benchmark is provided for entire gyro, is connected between main structure and support base by the low heat insulating mattress of thermal conductivity
It connects, and improves the temperature stability of main structure, reduce each component inside gyroscope is influenced by variation of ambient temperature.
(3) detection light beam splitting component of the present invention is all made of Contiuum type mirror holder with the steady light intensity component of pumping light and fixes, and utilizes spiral shell
Nail is fastened in main structure, improves optical device mounting stability, easy to disassemble and debugging.
(4) magnetic shielding cylinder component of the present invention realizes that four layers of shielding construction under small size design, between every layer of shielding cylinder
It is realized and is positioned by plastic support ring, and realize that whole position is fixed eventually by demagnetization bar and positioning tool.
(5) present invention is small in size, symmetrical configuration, integrated level is high, is easily assembled, and has important engineering practical value.
Detailed description of the invention
Fig. 1 is a kind of portable no spin-exchange relaxation atomic gyroscope structure diagram of the present invention；
Fig. 2 is axis side view, rearview and the right view of main structure and support base of the invention, wherein Fig. 2 (a) is
Axis side view, Fig. 2 (b) are rearview, and Fig. 2 (c) is right view；
Fig. 3 is magnetic shielding cylinder component axial section and end view drawing of the invention, wherein Fig. 3 (a) is axial section,
Fig. 3 (b) is end view drawing；
Fig. 4 is detection light beam splitting modular construction schematic diagram of the invention；
Appended drawing reference meaning in figure are as follows: 1 is alkali metal gas chamber fixing seat, and 2 for no magnetoelectricity heating pedestal, 3 be field compensation
Coil rack, 4 be magnetic shielding cylinder component, and 5 be detection laser pedestal, and 6 be detection light beam splitting component, and 7 be optically pumped laser base
Seat, 8 expand component for pumping light, and 9 be the steady light intensity component of pumping light, and 10 be positioning tool, and 11 be main structure, and 12 be support bottom
Seat, 101 be the first light hole, and 102 be ceramic backing, and 103 be the first threaded hole, and 104 be the second through hole, and 105 be the second spiral shell
Pit, 106 be SMA connector location hole, and 107 be the first screw clearance holes, and 108 be third light hole, and 109 be cabling channel, and 201 are
First positioning hole, 202 be third threaded hole, and 203 be the 4th light hole, and 204 be the second screw clearance holes, and 205 be the 4th screw thread
Hole, 206 be the first datum level, and 301 be support ring, and 302 be the first spacer ring, and 303 be the second spacer ring, and 304 be third location hole,
305 be the 5th light hole, and 306 be the 4th location hole, and 501 be the 6th light hole, and 502 be third screw clearance holes.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the present invention.
As shown in Figure 1, the present invention proposes a kind of portable no spin-exchange relaxation atomic gyroscope structure, including alkali metal
Gas chamber fixing seat 1, without magnetoelectricity heating pedestal 2, field compensation coil rack 3, magnetic shielding cylinder component 4, detection laser pedestal 5,
Detection light beam splitting component 6, optically pumped laser pedestal 7, pumping light expand the steady light intensity component 9 of component 8, pumping light, positioning tool 10,
Main structure 11 and support base 12.Alkali metal gas chamber fixing seat 1 is used to clamp the spherical glass gas chamber equipped with alkali metal, no magnetoelectricity
For heating pedestal 2 for clamping alkali metal gas chamber fixing seat, and for pasting heating film, field compensation coil rack 3 is no magnetoelectricity
Heating pedestal provides reference for installation, and is fastened by non-magnetic material screw, realizes and 11 pumping light of main structure by shaft hole matching
The coaxial positioning of light hole.Magnetic shielding cylinder component 4 is four layers of shielding construction, effectively improves Magnetic Shielding Effectiveness.Detection laser base
Seat 5 is used for fixed test laser tube, and is fastened in main structure 11 with screw suspension, and stable detection light light is provided for gyroscope
Source.Detection light beam splitting component 6 is fixed BS and Glan prism disjunctor by Contiuum type mirror holder, and is fastened on main structure using screw
On 11, detection light is divided into two bundles by BS, and a branch of conduct first via detection light enters magnetic shielding cylinder group after being polarized by Glan prism
Part 4, another the second tunnel Shu Zuowei detection light is reflected into 11 bottom of main structure, by being again introduced into magnetic shielding cylinder component after reflecting mirror
4.Pumping laser device pedestal 7 realizes the suspension in main structure 11 for fixing pumping laser pipe, by location hole and screw
It is fixed, stable pumping radiant is provided.Pumping light expands component 8 and is fixed by screw and be embedded in 11 reinforcing rib of main structure
In, reduce space and improves pumping light and expand 8 stability of component.The steady light intensity component 9 of pumping light is fixed using Contiuum type mirror holder, is taken out
Fortune light is divided into two bundles by PBS, wherein a branch of be used for stabilized intensity, another beam folds into 11 bottom of main structure and inhales for pumping light saturation
Receive frequency stabilization.Main structure 11 provides reference for installation for each component, and each component utilizes spiral shell by the location hole positioning in main structure 11
It clenches admittedly, support base 12 provides stable benchmark for entire gyro.
Fig. 2 is axis side view, rearview and the right view of main structure 11 and support base 12 of the invention, wherein Fig. 2
It (a) is axis side view, Fig. 2 (b) is rearview, and Fig. 2 (c) is right view.Main structure 11 provides installation base for all components of gyro
Standard, and be fastened in support base 12 by screw and the first screw clearance holes 107.The second threaded hole 105 in main structure 11
For positioning and fastening detection laser component 5.Ceramic backing 102 is fixed in main structure 11 by location hole, detection light point
Tread assembly 6 realizes that positioning is fixed by the first threaded hole 103 and the second light hole 104, and the second tunnel detection light passes through third light passing
Hole 108 enters 11 bottom of main structure, and magnetic shielding cylinder component 4 is entered after reflecting mirror reflects, is finally gone out from the first light hole 101
It penetrates and is used to detect.Third threaded hole 202 in main structure 11 is used to position and fasten pumping laser device pedestal 7.Pumping light
It expands component 8 and positioning is realized by first positioning hole 201, and be fastened in 4 threaded holes of surrounding by screw.Main structure 11
On the 4th through hole 203, the first light hole 101 and the first datum level 206 for realizing magnetic shielding cylinder component 4 positioning, two
Root demagnetization bar realizes positioning by the 4th threaded hole 205.Field compensation coil rack 3 passes through the 4th through hole in main structure 11
203 realize coaxial positioning, and are realized and fixed by the second screw clearance holes 204 using screw.
Fig. 3 is 4 axial section of magnetic shielding cylinder component and end view drawing of the invention, wherein Fig. 3 (a) is axial section,
Fig. 3 (b) is end view drawing.Magnetic shielding cylinder component 4 is alkali metal gas chamber fixing seat 1, without magnetoelectricity heating pedestal 2 and field compensation coil
Skeleton 3 provides reference for installation, and field compensation coil rack 3 is realized coaxially by third location hole 304 and the 5th light hole 305
Positioning, while the 5th light hole 305 also provides positioning datum with no magnetoelectricity heating pedestal 2 for alkali metal gas chamber fixing seat 1.Magnetic cup
Covering cartridge module 4 is four layers of magnet shielding structure, is passed through between support ring 301, the first spacer ring 302 and the second spacer ring 303 between every layer
Cooperation realize positioning.Demagnetization bar passes through the 4th location hole 306, realizes the whole positioning of magnetic screen component 4.
Fig. 4 is detection light beam splitting assembly assumption diagram of the invention, is fixed on pottery by screw and third screw clearance holes 502
On first threaded hole 103 of porcelain backing plate 108.Detection light is divided by BS, a branch of that first via detection light is used as to pass through Glan prism
Enter magnetic shielding cylinder component 4 after being polarized, the 6th light hole and third light hole are passed through in another Shu Zuowei the second tunnel detection light reflection
108 enter 11 bottom of main structure.
The content that description in the present invention is not described in detail belongs to the prior art well known to professional and technical personnel in the field:
Without departing from the spirit and scope of the invention and the appended claims, progress any replacement and improve all be allowed,
Also in protection scope of the present invention.
Claims (5)
1. a kind of portable no spin-exchange relaxation atomic gyroscope structure, it is characterised in that: including alkali metal gas chamber fixing seat
(1), without magnetoelectricity heating pedestal (2), field compensation coil rack (3), magnetic shielding cylinder (4), detection laser pedestal (5), detection
Light beam splitting component (6), optically pumped laser pedestal (7), pumping light expand the steady light intensity component (9) of component (8), pumping light, positioning work
Fill (10), main structure (11) and support base (12)；Alkali metal gas chamber fixing seat (1) is used to clamp the spherical gas equipped with alkali metal
Room；No magnetoelectricity heating pedestal (2) is used to paste heating film for clamping alkali metal gas chamber fixing seat (1)；Field compensation coil
Skeleton (3) provides reference for installation for no magnetoelectricity heating pedestal (2), and is realized by shaft hole matching and led to main structure (11) pumping light
The coaxial positioning of unthreaded hole；Magnetic shielding cylinder (4) is four layers of shielding construction, and it is fixed to be realized between every layer of shielding cylinder by plastic support ring
Position, and realize that whole position is fixed eventually by demagnetization bar and positioning tool (10)；Detection laser pedestal (5) passes through positioning
Realize that the suspension on main structure (11) is fixed with screw in hole；Detection light beam splitting component (6) passes through Contiuum type mirror holder for BS dative
Blue prism disjunctor is fixed, and is fastened on main structure (11) using screw, and detection light is divided into two bundles by BS, a branch of to pass through Glan rib
Mirror enters magnetic shielding cylinder (4) after being polarized, and another beam reflexes to main structure (11) bottom, by being again introduced into magnetic screen after reflecting mirror
Cylinder (4)；Optically pumped laser pedestal (7) is fixed on main structure (11) by location hole and screw suspension；Pumping light expands component
(8) it is coaxially fixed and is embedded in main structure (11) reinforcing rib by screw and through-hole；The steady light intensity component (9) of pumping light is using company
Body formula mirror holder is fixed, and pumping light is divided into two bundles by PBS, wherein a branch of be used for stabilized intensity, another beam folds into main structure (11) bottom
Portion is used for pumping light saturated absorption frequency stabilization；Main structure (11) provides reference for installation for each component of gyro, and each component passes through main structure
(11) the location hole positioning on, and fastened using screw；Support base (12) provides stable benchmark for whole device.
2. the portable no spin-exchange relaxation atomic gyroscope structure of one kind according to claim 1, it is characterised in that: institute
It states main structure (11) and divides chamber to design in conjunction with suspension type using sunk type, by pumping light path part, light path component, electricity
Plug isolation, and each component is fastened on each positioning parts on main structure (11) to, section components using screw by location hole
Suspension is fixed on main structure (11), and gyro volume is effectively reduced.
3. the portable no spin-exchange relaxation atomic gyroscope structure of one kind according to claim 1, it is characterised in that: institute
It states main structure (11) and support base (12) card slot is inserted by protrusion part of bottom, and be fastened in support base using screw,
It is connect between main structure (11) and support base (12) by the low heat insulating mattress of thermal conductivity.
4. the portable no spin-exchange relaxation atomic gyroscope structure of one kind according to claim 1, it is characterised in that: institute
It states detection light beam splitting component (6) to fix BS and Glan prism disjunctor using Contiuum type mirror holder, is fastened on main structure using screw
(11) on, BS will test light and be divided into two bundles, and wherein light beam is used as first via detection light to enter magnetic by the way that Glan prism is to the rear
Shielding cylinder (4), another light beam are reflected into main structure (11) bottom, are used as the second tunnel after the reflecting mirror reflection by bottom installation
Detection light enters magnetic shielding cylinder (4), and the second tunnel detection light direction is vertical with first via detection light direction, realizes twin shaft inertia angle speed
Rate measurement.
5. the portable no spin-exchange relaxation atomic gyroscope structure of one kind according to claim 1, it is characterised in that: institute
It states the steady light intensity component (9) of pumping light to fix PBS and liquid crystal phase retardation device disjunctor using Contiuum type mirror holder, be fastened using screw
On main structure (11), PBS is polarized for pumping light, and pumping light is divided into two bundles, wherein a branch of pass through optical stabilizer part
Back reflection enters magnetic shielding cylinder (4), and another beam is reflected into main structure (11) bottom, is used for after the reflecting mirror of bottom installation
Saturated absorption frequency stabilization.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299014.2A CN109186579B (en) | 2018-11-02 | 2018-11-02 | Portable spin-exchange-relaxation-free atomic gyroscope structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299014.2A CN109186579B (en) | 2018-11-02 | 2018-11-02 | Portable spin-exchange-relaxation-free atomic gyroscope structure |
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| Publication Number | Publication Date |
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| CN109186579A true CN109186579A (en) | 2019-01-11 |
| CN109186579B CN109186579B (en) | 2022-04-22 |
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Cited By (6)
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| CN110631955A (en) * | 2019-10-29 | 2019-12-31 | 之江实验室 | Integrated alkali metal gas density detection device based on Faraday effect |
| CN110631571A (en) * | 2019-09-25 | 2019-12-31 | 北京航空航天大学 | Double-shaft spin-exchange-free relaxation gyroscope and signal detection closed-loop control method |
| CN111609845A (en) * | 2020-05-07 | 2020-09-01 | 北京航空航天大学 | Integrated spin-exchange-free relaxation atomic gyroscope |
| CN111624537A (en) * | 2020-07-22 | 2020-09-04 | 北京航空航天大学杭州创新研究院 | Biological cell physical property testing device and testing method thereof |
| CN111854743A (en) * | 2020-07-16 | 2020-10-30 | 北京航空航天大学 | High-shimming air chamber heating structure |
| CN112414390A (en) * | 2020-11-18 | 2021-02-26 | 北京自动化控制设备研究所 | Micro atomic air chamber packaging device |
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| CN110631571A (en) * | 2019-09-25 | 2019-12-31 | 北京航空航天大学 | Double-shaft spin-exchange-free relaxation gyroscope and signal detection closed-loop control method |
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| CN111609845B (en) * | 2020-05-07 | 2021-10-22 | 北京航空航天大学 | Integrated spin-exchange-free relaxation atomic gyroscope |
| CN111854743A (en) * | 2020-07-16 | 2020-10-30 | 北京航空航天大学 | High-shimming air chamber heating structure |
| CN111624537A (en) * | 2020-07-22 | 2020-09-04 | 北京航空航天大学杭州创新研究院 | Biological cell physical property testing device and testing method thereof |
| CN111624537B (en) * | 2020-07-22 | 2022-11-04 | 北京航空航天大学杭州创新研究院 | Biological cell physical property testing device and testing method thereof |
| CN112414390A (en) * | 2020-11-18 | 2021-02-26 | 北京自动化控制设备研究所 | Micro atomic air chamber packaging device |
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| CN109186579B (en) | 2022-04-22 |
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