CN203587116U - Marine strapdown gyrocompass structure of fiber-optic gyroscope - Google Patents
Marine strapdown gyrocompass structure of fiber-optic gyroscope Download PDFInfo
- Publication number
- CN203587116U CN203587116U CN201320755903.1U CN201320755903U CN203587116U CN 203587116 U CN203587116 U CN 203587116U CN 201320755903 U CN201320755903 U CN 201320755903U CN 203587116 U CN203587116 U CN 203587116U
- Authority
- CN
- China
- Prior art keywords
- base
- imu
- optical fibre
- fiber
- negative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Gyroscopes (AREA)
Abstract
The utility model provides a marine strapdown gyrocompass structure of a fiber-optic gyroscope. The system structure comprises a base, an inertial measurement unit (IMU) component, an outer cover and a magnetic shielding cover, wherein the IMU component is arranged on the base and composed of an IMU bracket, a fiber-optic gyroscope and an accelerometer; the fiber-optic gyroscope and the accelerometer are arranged on the IMU bracket; the magnetic shielding cover is arranged on the base to shield an external disturbing magnetic field; an IF plate and two highly integrated navigation computer boards are arranged inside an internal cavity of the IMU bracket; a power supply board is arranged on the base to facilitate cooling; the installation positions of X-direction, Y-direction and negative Z-direction fiber-optic gyroscopes are arranged correspondingly to the installation positions of X-direction, Y-direction and negative Z-direction accelerometers. The marine strapdown gyrocompass structure has the characteristics of being compact, and meeting the sea service environment; the marine strapdown gyrocompass structure of the fiber-optic gyroscope designed by combining with the ship site environment and the requirements of inertial navigation equipments is small in volume, and can adapt to a poor working environment with a salt fog and a constant magnetic field on the sea.
Description
Technical field
The utility model belongs to inertial navigation technology field, particularly a kind of fiber-optic gyroscope strapdown compass structure peculiar to vessel.
Background technology
Optical fiber inertial navigation equipment, due to advantages such as its precision is high, dynamic range is large, reliability is high, response is fast, long service life, has caused both at home and abroad research widely.Optical fiber is used to group and in navigation field, is occupied advantage and become clear day by day, and is the important development direction of navigator.At present, optical fiber strapdown compass structural volume peculiar to vessel is large, and existing strapdown compass structure can not well adapt to the shortcoming of marine salt fog work on the spot environment and stationary magnetic field interference simultaneously.Therefore the optical fiber strapdown compass that, has little, the anti-stationary magnetic field of volume, good airproof performance and a resistance to marine salt mist environment is development trend and the demand of fiber optic gyro strapdown inertial navigation equipment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of compact conformation, meets the optical fibre gyro strapdown compass peculiar to vessel structure of marine environment for use, and in conjunction with site environment on ship and inertial navigation set require, the optical fibre gyro strapdown compass peculiar to vessel structure of design possesses the severe working environment that volume is little, can adapt to marine salt fog and stationary magnetic field.
The utility model solves the technical scheme that above technical matters adopts: by base, outer cover, magnetic shielding cover and IMU support, six sensing modules are installed on IMU support, sensing module is by directions X, Y-direction and three optical fibre gyros of negative Z direction and directions X, three accelerometers of Y-direction and negative Z direction form, these six sensor assemblies are fixed by screws on IMU support, power panel is arranged on base, wherein said directions X, Y-direction and negative Z direction optical fibre gyro installation position and directions X, three corresponding layouts in accelerometer installation position of Y-direction and negative Z direction, with one heart coaxial and vertical between two to guarantee, and three accelerometers are flush type mounting structure, make three accelerometers and IMU support geometric center apart from minimum, reduce lever arm effect and provide architecture basics for realizing High Accuracy Inertial, wherein, on base, be designed with square type mounting groove, it is the silver-plated waterproof conductive seal circle of aluminium that material is installed, after outer cover connects with base, O-ring seal is accommodated in floor installation groove completely, makes system architecture have water vapor seal performance and capability of electromagnetic shielding.
Further feature, three optical fibre gyros and directions X, Y-direction and three accelerometers of negative Z direction of directions X, Y-direction and negative Z direction are all installed on IMU support, and described directions X, Y-direction and negative Z directional acceleration meter layout corresponding to optical fibre gyro, can guarantee that three accelerometers and three optical fibre gyros are coaxial and be parallel to three quadrature major axes orientations of reference frame.Three accelerometer installation positions adopt embedded design, make the distance of three accelerometers and IMU support geometric center minimum, have reduced the lever arm effect of accelerometer.Power panel, negative Z-direction optical fibre gyro are embedded in base, have saved installing space, make structure compacter.
Further feature is designed with square type mounting groove on base, and it is the silver-plated waterproof conductive seal circle of aluminium that material is installed, and after outer cover connects with base, O-ring seal is accommodated in floor installation groove completely.Make system architecture there is water vapor seal performance and capability of electromagnetic shielding.
Further feature, is arranged on the magnetic field that Full closed magnetic shielding case structure on base shields external disturbance optical fibre gyro, the magnetically soft alloy 1J79 that magnetic shielding cover is selected is shock-resistant, high magnetic permeability is 224000mH/m.
Further feature, for resistance to marine salt mist environment condition is to not having the outer cover of accuracy requirement to adopt the protected mode that sprays acrylic paint, to there being the pier of accuracy requirement to adopt the mode of hard anodizing+grinding.Meet so marine salt fog mould environment and realized again lightweight.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Fig. 2 is the A-A cut-open view of Fig. 1.
Fig. 3 is the B-B cut-open view of Fig. 1.
Fig. 4 is the three-dimensional block diagram of magnetic shielding upper cover.
Fig. 5 is the three-dimensional block diagram of magnetic shielding seat.
Embodiment
Below in conjunction with concrete enforcement, the utility model is described in further detail.
Embodiment, as shown in Fig. 1 ~ Fig. 5, by base 1, outer cover 2, magnetic shielding cover 9 and IMU support 3, six sensing modules are installed on IMU support 3, sensing module is by directions X, Y-direction and three optical fibre gyros 7 of negative Z direction and directions X, Y-direction and three accelerometers of negative Z direction 6 form, these six sensor assemblies are fixed by screws on IMU support 3, power panel 8 is arranged on base 1, wherein said directions X, Y-direction and negative Z direction optical fibre gyro installation position and directions X, three corresponding layouts in accelerometer installation position of Y-direction and negative Z direction, with one heart coaxial and vertical between two to guarantee, and three accelerometers are flush type mounting structure, make three accelerometers and IMU support geometric center apart from minimum, reduce lever arm effect and provide architecture basics for realizing High Accuracy Inertial, wherein, on base 1, be designed with square type mounting groove, it is the silver-plated waterproof conductive seal circle of aluminium that material is installed, after outer cover 2 connects with base 1, O-ring seal is accommodated in floor installation groove completely, makes system architecture have water vapor seal performance and capability of electromagnetic shielding.
Three described optical fibre gyros 7 be all fixed on IMU support 3 with three accelerometers 6 and three optical fibre gyros and three accelerometer installation positions vertical between two, IMU support adopts reinforcement and lightening grooves design simultaneously,, IF plate 4 and two blocks of navigational computer plates 5 are installed in described IMU internal stent cavity.
On described base 1, be designed with square type mounting groove, it is the silver-plated waterproof conductive seal circle of aluminium that material is installed in groove.
Thereby by being arranged on base 1 Full closed magnetic radome 9 structures, wrapping up IMU assembly and effectively shield external magnetic field and disturb optical fibre gyro 7, that magnetic shielding cover is selected is shock-resistant, magnetic permeability is 224000mH/m magnetically soft alloy 1J79.
Described base and IMU support adopt aluminium alloy 7A04, and outer cover adopts aluminium alloy 2A12, outer cover 2 are adopted to the protected mode of spraying acrylic paint, base 1 are adopted to the mode of hard anodizing+grinding.
The scheme that the utility model is realized cramped construction is that reasonable Arrangement device, makes full use of space.Employing is arranged on three accelerometer correspondences below three optical fibre gyros, power panel, negative Z-direction optical fibre gyro is arranged in base simultaneously, has reduced compass size.Adopt IF plate and navigational computer plate to be arranged in the inner chamber of IMU support, greatly reduced the inner structure size of compass.
The scheme that the utility model realization meets marine environment for use is the radome of being made by 1J79 soft magnetic material to be installed on base and effectively to be shielded external magnetic field interference optical fibre gyro.Make compass equipment can possess magnetic screen function.On base, be processed with seal groove, conductive seal circle is arranged in groove.Conductive seal circle makes base and outer cover become an electric conductor, has avoided dust and water droplet access arrangement inner simultaneously, makes compass equipment possess good sealing property.To not having the cover structure region of accuracy requirement to adopt the protected mode of spraying acrylic paint, to there being the understructure region of accuracy requirement to adopt the technique of hard anodizing+grinding, make compass structure can meet marine environment for use simultaneously.
Claims (5)
1. an optical fibre gyro strapdown compass peculiar to vessel structure, it is characterized in that: by base (1), outer cover (2), magnetic shielding cover (9) and IMU support (3), six sensing modules are installed on IMU support (3), sensing module is by directions X, Y-direction and three optical fibre gyros of negative Z direction (7) and directions X, Y-direction and three accelerometers of negative Z direction (6) form, these six sensor assemblies are fixed by screws on IMU support (3), power panel (8) is arranged on (1) on base, wherein said directions X, Y-direction and negative Z direction optical fibre gyro installation position and directions X, three corresponding layouts in accelerometer installation position of Y-direction and negative Z direction, with one heart coaxial and vertical between two to guarantee, and three accelerometers are flush type mounting structure, make three accelerometers and IMU support geometric center apart from minimum, reduce lever arm effect and provide architecture basics for realizing High Accuracy Inertial, wherein, on base (1), be designed with square type mounting groove, it is the silver-plated waterproof conductive seal circle of aluminium that material is installed, after outer cover (2) connects with base (1), O-ring seal is accommodated in floor installation groove completely, makes system architecture have water vapor seal performance and capability of electromagnetic shielding.
2. a kind of optical fibre gyro according to claim 1 strapdown compass peculiar to vessel structure, it is characterized in that, three optical fibre gyros (7) and three accelerometers (6) be all fixed on upper and three optical fibre gyros of IMU support (3) and three accelerometer installation positions vertical between two, IMU support adopts reinforcement and lightening grooves design simultaneously, and IF plate (4) and two blocks of navigational computer plates (5) are installed in described IMU internal stent cavity.
3. a kind of optical fibre gyro according to claim 1 strapdown compass peculiar to vessel structure, is characterized in that, is designed with square type mounting groove on base (1), and it is the silver-plated waterproof conductive seal circle of aluminium that material is installed in groove.
4. a kind of optical fibre gyro according to claim 1 strapdown compass peculiar to vessel structure, it is characterized in that, by be arranged on (1) on base Full closed magnetic radome (9) thus structure wrap up IMU assembly and effectively shield external magnetic field and disturb optical fibre gyro (7), that magnetic shielding cover is selected is shock-resistant, magnetic permeability is 224000mH/m magnetically soft alloy 1J79.
5. a kind of optical fibre gyro according to claim 1 strapdown compass peculiar to vessel structure; it is characterized in that; base and IMU support adopt aluminium alloy 7A04; outer cover adopts aluminium alloy 2A12; outer cover (2) is adopted to the protected mode of spraying acrylic paint, base (1) is adopted to the mode of hard anodizing+grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755903.1U CN203587116U (en) | 2013-11-27 | 2013-11-27 | Marine strapdown gyrocompass structure of fiber-optic gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320755903.1U CN203587116U (en) | 2013-11-27 | 2013-11-27 | Marine strapdown gyrocompass structure of fiber-optic gyroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587116U true CN203587116U (en) | 2014-05-07 |
Family
ID=50585021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320755903.1U Expired - Fee Related CN203587116U (en) | 2013-11-27 | 2013-11-27 | Marine strapdown gyrocompass structure of fiber-optic gyroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587116U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289251A (en) * | 2016-08-24 | 2017-01-04 | 中船重工西安东仪科工集团有限公司 | A kind of microminiature inertial Combined structure of sensor |
| CN106908051A (en) * | 2015-12-23 | 2017-06-30 | 北京自动化控制设备研究所 | A kind of high-precision optical fiber gyro bilayer magnetic shielding cover and its heat treatment method |
| CN109443340A (en) * | 2018-12-10 | 2019-03-08 | 河北汉光重工有限责任公司 | A kind of device for fiber-optic gyroscope light path system docking |
| CN114608516A (en) * | 2022-01-28 | 2022-06-10 | 北京航天发射技术研究所 | Appearance equipment is surveyed to miniaturized radar developments |
-
2013
- 2013-11-27 CN CN201320755903.1U patent/CN203587116U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908051A (en) * | 2015-12-23 | 2017-06-30 | 北京自动化控制设备研究所 | A kind of high-precision optical fiber gyro bilayer magnetic shielding cover and its heat treatment method |
| CN106289251A (en) * | 2016-08-24 | 2017-01-04 | 中船重工西安东仪科工集团有限公司 | A kind of microminiature inertial Combined structure of sensor |
| CN109443340A (en) * | 2018-12-10 | 2019-03-08 | 河北汉光重工有限责任公司 | A kind of device for fiber-optic gyroscope light path system docking |
| CN114608516A (en) * | 2022-01-28 | 2022-06-10 | 北京航天发射技术研究所 | Appearance equipment is surveyed to miniaturized radar developments |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203587116U (en) | Marine strapdown gyrocompass structure of fiber-optic gyroscope | |
| CN102636169B (en) | Vehicle-mounted dynamic positioning and orientation device based on triaxial integrated high-precision fiber-optic gyroscope | |
| CN103604431A (en) | Strapdown compass system based on triaxial integrated high-precision optic fiber gyroscope | |
| CN1332123C (en) | Mechanical frame for optical-fiber gyro inclinometer for oil well | |
| CN100476358C (en) | MEMS gyroscope accurate installation reference component and installation method thereof | |
| CN112304308B (en) | Miniaturized high-precision optical fiber gyro inertial navigation device | |
| CN103591962A (en) | Positioning and orienting instrument optical fiber strap-down inertial measurement unit for coal industry | |
| CN212721460U (en) | Inertial navigation system based on triaxial integrated fiber-optic gyroscope | |
| WO2022039823A9 (en) | Operating modes of magnetic navigation devices | |
| CN207662410U (en) | A kind of three axis laser gyro IMU cage modle racks of modularization associated mode | |
| CN106970407A (en) | A kind of guider and its fixation kit | |
| CN106441294A (en) | MEMS inertial integrated measuring module | |
| CN209485371U (en) | A kind of Attitute detecting device | |
| CN207396737U (en) | Carried micro laser radar three-dimensional mapping device | |
| CN215810885U (en) | Optical fiber combined navigation system | |
| CN204944504U (en) | Multifunctional digital geological compass instrument | |
| CN207081831U (en) | A kind of guider and its fixation kit | |
| CN105446690A (en) | Information fusion and multi-information display method with target positioning function | |
| CN202008366U (en) | Miniature inertia navigation system | |
| CN212539196U (en) | Laser strapdown inertial navigation device | |
| CN106020376B (en) | A kind of small-sized high-performance distributed position and attitude measurement system computer structure | |
| CN113945226A (en) | High-precision double-light-source redundant triaxial integrated fiber optic gyroscope measuring device structure | |
| CN202074963U (en) | Full-automatic electronic leveling gyroscopic theodolite device | |
| CN205373728U (en) | A body structure that is used for on -vehicle portable positioning orientation appearance | |
| CN101907464B (en) | Laser POS computer system structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141127 |
|
| EXPY | Termination of patent right or utility model |