CN213363802U - Module integrated type triaxial fiber-optic gyroscope and inertial navigation system - Google Patents
Module integrated type triaxial fiber-optic gyroscope and inertial navigation system Download PDFInfo
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- CN213363802U CN213363802U CN202021253563.9U CN202021253563U CN213363802U CN 213363802 U CN213363802 U CN 213363802U CN 202021253563 U CN202021253563 U CN 202021253563U CN 213363802 U CN213363802 U CN 213363802U
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Abstract
The utility model discloses a module integrated form triaxial fiber optic gyroscope and be used to system of leading, including the installation body, the inner chamber of installation body comprises three one-level step cavity, three second grade step cavity and three dish fine space, and three fiber optic gyroscope sets up respectively in the inside of three one-level step cavity, and three accelerometer fixed mounting is in the inside of three one-level step cavity respectively, and light source module, be used to the group and solve board and power module and set up the inside at three second grade step cavity respectively. This kind of module integrated form triaxial fiber optic gyro and inertial navigation system adopts the interior space layout design of module integrated form, makes whole inertial navigation system compacter, and is miniaturized, uses the modular thought to cut apart the assembly process of top, reduces the assembly flow, reduces the assembly degree of difficulty, reduces fiber optic gyro and receives the influence of complicated magnetic field, reduces the sensitive degree of the temperature of module through specific technology, improves fiber optic gyro full temperature precision.
Description
Technical Field
The utility model relates to a fiber optic gyroscope technical field specifically is a module integrated form triaxial fiber optic gyroscope and is used to lead system.
Background
The optical fiber gyro is an optical fiber sensor for inertial navigation, the working principle of the optical fiber gyro is based on the Sagnac effect, the Sagnac effect is a common related effect of light transmitted in a closed-loop light path rotating relative to an inertial space, namely two beams of light with equal characteristics emitted from the same light source in the same closed light path are transmitted in opposite directions and finally converged to the same detection point.
At present, the structural design of the existing triaxial fiber-optic gyroscope is not reasonable enough, the size is large, the assembly is complicated, the assembly process is multiple, the difficulty is high, and in the using process, the fiber-optic gyroscope is easily influenced by a complex magnetic field, so that the quality and the full-temperature precision of the fiber-optic gyroscope are reduced, and the using requirement cannot be met. Therefore, the module integrated type triaxial fiber optic gyro and inertial navigation system is provided.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a module integrated form triaxial fiber optic gyroscope and be used to system of leading, including the installation body, the inner chamber of installation body comprises three one-level step cavity, three second grade step cavity and three dish fine space, and is three fiber optic gyroscope sets up respectively in the inside of three one-level step cavity, and is three the equal fixed mounting in inside of one-level step cavity has three accelerometer, and is three the inside of one-level step cavity sets up light source module respectively, is used to organize and solves board and power module, one of them the inside of second grade step cavity is provided with the mainboard module, the mainboard module comprises three detector and mainboard body.
As the utility model discloses an optimized technical scheme, the installation body adopts aluminum alloy material to make, the installation body specifically is a hexahedron frame construction, a plurality of mounting hole has been seted up on the installation body.
As an optimal technical scheme of the utility model, it is three the fiber optic gyroscope becomes space quadrature each other, and fixed mounting is in the inside of three one-level step cavity respectively.
As an optimal technical scheme of the utility model, it is three the accelerometer becomes mutual space quadrature, and fixed mounting is in the inside of the relative three one-level step cavity of three fiber optic gyroscope installation face respectively, and is three the quadrature point of accelerometer is located the geometric centre of installation body.
As a preferred technical scheme of the utility model, light source module, be used to the group and solve board and power module and correspond the inside of three second grade step cavity in three accelerometer installation space through screw fixed mounting respectively.
As an optimal technical scheme of the utility model, it is three the equal fixed mounting of detector is in one side of mainboard body, mainboard body fixed mounting is in the inside of one of them second grade step cavity.
As a preferred technical scheme of the utility model, the inner chamber symmetry of installation body has been seted up a plurality of and has been walked line hole, a plurality of walk the line hole respectively with the inside intercommunication of three one-level step cavity and three second grade step cavity.
The utility model has the advantages that: this kind of module integrated form triaxial fiber optic gyro and inertial navigation system adopts the interior space layout design of module integrated form, makes whole inertial navigation system compacter, and is miniaturized, uses the modular thought to cut apart the assembly process of top, reduces the assembly flow, reduces the assembly degree of difficulty, reduces fiber optic gyro and receives the influence of complicated magnetic field, reduces the sensitive degree of the temperature of module through specific technology, improves fiber optic gyro full temperature precision.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a module-integrated triaxial fiber optic gyroscope and inertial navigation system according to the present invention;
fig. 2 is a schematic side view of the module integrated triaxial fiber optic gyroscope and inertial navigation system according to the present invention;
FIG. 3 is a schematic view of a sectional structure of an installation body of a module-integrated triaxial fiber optic gyroscope and inertial navigation system according to the present invention;
fig. 4 is a schematic view of the sectional structure of the installation body of the module integrated triaxial fiber optic gyroscope and inertial navigation system.
In the figure: 1. installing a body; 2. a fiber optic gyroscope; 3. an accelerometer; 4. a main board body; 5. a light source module; 6. an inertial measurement unit resolving plate; 7. a power supply module; 8. a detector; 9. coiling fiber space; 10. a wiring hole; 11. a screw; 12. a first-stage stepped chamber; 13. a secondary stepped chamber.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model relates to a module integrated form triaxial fiber optic gyroscope and be used to lead system, including installation body 1, the inner chamber of installation body 1 is by three one-level step cavity 12, three second grade step cavity 13 and three dish fine space 9 are constituteed, three fiber optic gyroscope 2 sets up the inside at three one-level step cavity 12 respectively, the equal fixed mounting in inside of three one-level step cavity 12 has three accelerometer 3, the inside of three one-level step cavity 12 sets up light source module 5 respectively, be used to organize and solve board 6 and power module 7, the inside of one of them second grade step cavity 13 is provided with the mainboard module, the mainboard module comprises three detector 8 and mainboard body 4.
Wherein, installation body 1 adopts aluminium alloy material to make, and installation body 1 specifically is a hexahedron frame construction, has seted up a plurality of mounting hole on the installation body 1, adopts the aluminium alloy material that density is lower to make, can reduce the total mass of product under the circumstances of guaranteeing rigidity and intensity, is favorable to heat evenly distributed and improves and is used to the space utilization of unit system.
The three fiber optic gyroscopes 2 are mutually orthogonal in space and are respectively and fixedly installed inside the three first-stage step chambers 12.
Wherein, three accelerometer 3 become mutual space quadrature, and respectively fixed mounting in the inside of three one-level step cavity 12 that three fiber optic gyroscope 2 installation faces is relative, and the quadrature point of three accelerometer 3 is located the geometric center of installation body 1, is favorable to heat evenly distributed and guarantees accelerometer 3's stability can.
The light source module 5, the inertia calculation board 6 and the power source module 7 are fixedly installed in the three accelerometer 3 installation spaces corresponding to the three second-stage step chambers 13 through screws 11, and the space utilization rate of the inertia calculation system is improved.
Wherein, the equal fixed mounting of three detector 8 is in one side of mainboard body 4, and mainboard body 4 fixed mounting has reduced the circuit board to the waste in top space in the inside of one of them second grade step cavity 13, is favorable to being used to the miniaturized realization of navigation system.
Wherein, a plurality of wiring hole 10 has been seted up to the inner chamber symmetry of installation body 1, and a plurality of wiring hole 10 feeds through with the inside of three one-level step cavity 12 and three second grade step cavity 13 respectively, guarantees whole inertial navigation system's stability.
The installation body 1 of the embodiment is made of aluminum alloy material with lower density, the total mass of the product can be reduced under the condition of ensuring the rigidity and the strength, the uniform distribution of heat is facilitated, the space utilization rate of the inertial system is improved, the orthogonal point of the three accelerometers 3 is positioned at the geometric center of the installation body 1, the uniform distribution of heat is facilitated, the stability of the accelerometers 3 is ensured, the light source module 5, be used to the group and solve board 6 and power module 7 fixed mounting in the inside of three second grade step cavity 13, improve the space utilization of the inertial navigation system, mainboard body 4 fixed mounting has reduced the waste of circuit board to the top space in the inside of one of them second grade step cavity 13, is favorable to being used to the miniaturized realization of navigation system, and the walk hole 10 communicates with the inside of three one-level step cavity 12 and three second grade step cavity 13 respectively, guarantees whole stability of being used to navigation system.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a module integrated form triaxial fiber optic gyroscope and inertial navigation system, its characterized in that, is including installation body (1), the inner chamber of installation body (1) comprises three one-level step cavity (12), three second grade step cavity (13) and three dish fine space (9), and is three fiber optic gyroscope (2) set up respectively in the inside of three one-level step cavity (12), and are three the equal fixed mounting in inside of one-level step cavity (12) has three accelerometer (3), and is three the inside of one-level step cavity (12) sets up light source module (5), is used to organize respectively and solves board (6) and power module (7), one of them the inside of second grade step cavity (13) is provided with the mainboard module, the mainboard module comprises three detector (8) and mainboard body (4).
2. The module integrated triaxial fiber optic gyroscope and inertial navigation system according to claim 1, wherein the mounting body (1) is made of an aluminum alloy material, the mounting body (1) is a hexahedral frame structure, and a plurality of mounting holes are formed in the mounting body (1).
3. A modular integrated triaxial fiber optic gyro and inertial navigation system according to claim 1, wherein three fiber optic gyros (2) are spatially orthogonal to each other and are fixedly mounted inside three one-step chambers (12), respectively.
4. A modular integrated triaxial fiber optic gyro and inertial navigation system according to claim 1, wherein three accelerometers (3) are mutually orthogonal in space and are fixedly mounted inside three primary step chambers (12) opposite to the mounting surface of three fiber optic gyros (2), respectively, and the orthogonal point of the three accelerometers (3) is located at the geometric center of the mounting body (1).
5. The module-integrated triaxial fiber optic gyroscope and inertial navigation system according to claim 1, wherein the light source module (5), the inertial measurement unit resolving plate (6) and the power supply module (7) are respectively and fixedly installed inside three two-stage step chambers (13) corresponding to the installation space of the three accelerometers (3) through screws (11).
6. A modular integrated triaxial fiber optic gyro and inertial navigation system according to claim 1, wherein three of the detectors (8) are fixedly mounted on one side of a main plate body (4), the main plate body (4) being fixedly mounted inside one of the two-step chambers (13).
7. The module-integrated triaxial fiber optic gyroscope and inertial navigation system according to claim 1, wherein the inner cavity of the mounting body (1) is symmetrically provided with a plurality of wiring holes (10), and the plurality of wiring holes (10) are respectively communicated with the interiors of three first-stage step chambers (12) and three second-stage step chambers (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021253563.9U CN213363802U (en) | 2020-07-01 | 2020-07-01 | Module integrated type triaxial fiber-optic gyroscope and inertial navigation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021253563.9U CN213363802U (en) | 2020-07-01 | 2020-07-01 | Module integrated type triaxial fiber-optic gyroscope and inertial navigation system |
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| CN213363802U true CN213363802U (en) | 2021-06-04 |
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| CN202021253563.9U Active CN213363802U (en) | 2020-07-01 | 2020-07-01 | Module integrated type triaxial fiber-optic gyroscope and inertial navigation system |
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