CN208847198U - A kind of optical fiber inertial navigation structure - Google Patents
A kind of optical fiber inertial navigation structure Download PDFInfo
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- CN208847198U CN208847198U CN201821336418.XU CN201821336418U CN208847198U CN 208847198 U CN208847198 U CN 208847198U CN 201821336418 U CN201821336418 U CN 201821336418U CN 208847198 U CN208847198 U CN 208847198U
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- stage body
- inertial navigation
- optical fiber
- installation stage
- gyro
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Abstract
The utility model relates to inertial navigation, in particular to a kind of optical fiber inertial navigation structure.The structure include two mutually independent gyro installation stage bodies and plus meter installation stage body, gyro installation stage body and plus meter installation stage body present lower arrangement.The gyro installation stage body bottom extends around, is formed stage body pedestal [1], and the fixed structure of external connection is provided on stage body pedestal [1].The inertial navigation structure further includes cabinet outer cover [3], and the cabinet outer cover [3] is sleeved on gyro installation stage body and adds outside meter erecting bed body, and bottom and stage body pedestal [1] are fixed.Propose a kind of satisfaction can reasonable installation closed-loop fiber optic gyroscope and accelerometer, system reaches tactics class precision, and the optical fiber inertial navigation structure that outer dimension is smaller, internal arrangement is compact.
Description
Technical field
The utility model relates to inertial navigation, in particular to a kind of optical fiber inertial navigation structure.
Background technique
In recent years, domestic market is rapid to miniaturization, low cost, Tactics-level and the above precision IMU demand growth, matter
Amount, cost are the factors that emphasis considers in the design of Miniature optical fiber inertial navigation structure.
Summary of the invention
The technical issues of the utility model solves: propose that a kind of satisfaction can reasonable installation closed-loop fiber optic gyroscope and acceleration
Meter, system reaches tactics class precision, and the optical fiber inertial navigation structure that outer dimension is smaller, internal arrangement is compact.
The technical solution of the utility model includes: a kind of optical fiber inertial navigation structure, it is characterized in that: the structure includes two mutual
Independent gyro installation stage body and plus meter installation stage body, gyro installation stage body and plus meter installation stage body present lower arrangement.
Preferably, the gyro installation stage body bottom extends around, forms stage body pedestal 1, is arranged on stage body pedestal 1
There is the fixed structure of external connection.
Preferably, the inertial navigation structure further includes cabinet outer cover 3, and the cabinet outer cover 3 is sleeved on gyro installation platform
Body and plus meter erecting bed body outside, bottom and stage body pedestal 1 are fixed.
Preferably, the wall thickness of the cabinet outer cover 3 is 2-3mm.
Preferably, system circuit board is installed on gyro installation stage body cavity outer wall.
The utility model has the beneficial effects that the utility model designs a kind of optical fiber inertial navigation structure, guarantee three gyros, three
It is orthogonal (X, Y, Z) that accelerometer installation is able to satisfy three axis；Previous optical fiber inertial navigation structure is compared, is laterally to put accelerometer
It is placed in gyro installation stage body side, total lateral dimension is larger, and longitudinal space is utilized in the design, makes plus count erecting bed
Body and gyro installation stage body place the side installation system electricity of accelerometer in arrangement up and down, while in gyro installation stage body originally
Road plate maximizes and improves space utilization rate, reduces product outline size；Since system parts are installed on stage body pedestal,
Cabinet outer cover does not carry, and can guarantee to reduce wall thickness when meeting rigidity requirement, and then mitigate product weight, be the small of system
Typeization design provides the foundation；Stage body pedestal is the circle that diameter is less than 95mm, designs its four installation hole locations and promise lattice in the U.S.'s are public
It is identical to take charge of LN-200 series of products, it can be to mark even replacement LN-200；Another aspect accelerometer and gyro sub-moduleization are installed,
Convenience is provided for the debugging of product later period, assembly, repair or upgrade etc..
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Now in conjunction with attached drawing, embodiment, invention is further described in detail:
Referring to Fig. 1, which includes 3 components, stage body pedestal 1, accelerometer installation stage body 2 and cabinet outer cover 3.Stage body
Pedestal is extended around by gyro installation stage body bottom to be obtained, and there are four the fixed installation hole location of external connection, peaces for upper setting
Attaching mouth is identical with LN-200 series of products.Gyro installation stage body is the cube structure for having cavity, three optical fiber
Gyro installation on the outside of cavity bottom and the cavity on normal surface, the relevant circuit board of gyro is mounted in the middle part of cavity, top with
Another side on the outside of cavity, the circuit board of the remaining unique side installation inertial navigation system of stage body, compact-sized, arrangement space utilization rate
It is high.Accelerometer installation stage body 2 is made of the mounting base of lower part thinner thickness with the open orthogonal stage body on top, is passed through
The upper surface of bolt and stage body pedestal 1 is attached, and total guarantees that three gyros, three accelerometer installations are able to satisfy
Three axis are orthogonal, under finally from top to bottom covering cabinet outer cover 3, pass through welded connecting with stage body pedestal 1.The structure largest enveloping surface
Size (contain mounting flange) isCircle, high 70mm, product quality be less than 1kg.
Claims (5)
1. a kind of optical fiber inertial navigation structure, it is characterized in that: the structure includes two mutually independent gyro installation stage bodies and adds
Meter installation stage body, gyro installation stage body and plus meter installation stage body present lower arrangement.
2. a kind of optical fiber inertial navigation structure according to claim 1, it is characterized in that: the gyro installation stage body bottom is to four
Zhou Yanshen is formed stage body pedestal [1], and the fixed structure of external connection is provided on stage body pedestal [1].
3. a kind of optical fiber inertial navigation structure according to claim 1, it is characterized in that: the inertial navigation structure further includes outside cabinet
It covers [3], the cabinet outer cover [3] is sleeved on gyro installation stage body and plus counts outside erecting bed body, bottom and stage body pedestal [1]
It is fixed.
4. a kind of optical fiber inertial navigation structure according to claim 3, it is characterized in that: the wall thickness of the cabinet outer cover [3] is
2-3mm。
5. a kind of optical fiber inertial navigation structure according to claim 1, it is characterized in that: pacify on gyro installation stage body cavity outer wall
Equipped with system circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336418.XU CN208847198U (en) | 2018-08-17 | 2018-08-17 | A kind of optical fiber inertial navigation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821336418.XU CN208847198U (en) | 2018-08-17 | 2018-08-17 | A kind of optical fiber inertial navigation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208847198U true CN208847198U (en) | 2019-05-10 |
Family
ID=66356253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821336418.XU Active CN208847198U (en) | 2018-08-17 | 2018-08-17 | A kind of optical fiber inertial navigation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208847198U (en) |
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2018
- 2018-08-17 CN CN201821336418.XU patent/CN208847198U/en active Active
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