CN201514217U - Improved closed loop fiber optic gyro - Google Patents
Improved closed loop fiber optic gyro Download PDFInfo
- Publication number
- CN201514217U CN201514217U CN2009202051924U CN200920205192U CN201514217U CN 201514217 U CN201514217 U CN 201514217U CN 2009202051924 U CN2009202051924 U CN 2009202051924U CN 200920205192 U CN200920205192 U CN 200920205192U CN 201514217 U CN201514217 U CN 201514217U
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- fiber optic
- loop
- light source
- optic loop
- fabricated section
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Abstract
The utility model discloses an improved closed loop fiber optic gyro, which comprises a fiber optic loop and a light source installation plate, wherein the light source installation plate is installed at the middle part of the fiber optic loop to enable a heat source to be arranged at the symmetric position of the fiber optic loop. A heat dissipation baffle is added at the middle part of the fiber optic loop. The closed loop fiber optic gyro formed by the fiber optic loop reduces the changes of the scale factor, the null bias and the stability of the fiber optic gyro with the temperature and improves the vibration impact resistance of the fiber optic gyro.
Description
Technical field
The utility model relates to optical gyroscope, belongs to the gyro technical field, specifically is a kind of closed-loop fiber optic gyroscope.
Background technology
Fiber optic loop is the core component that constitutes optical fibre gyro, it has the temperature sensitivity of height, thereby the variation of the environment temperature around heat conduction or the fiber optic loop is easy to cause the nonreciprocity of optical fibre gyro light path, bring big temperature drift to optical fibre gyro. be used for from actual making, when environment temperature changed, the constant multiplier of optical fibre gyro, zero reached stability partially and also changes.
Because light source is a topmost heater element in the optical fibre gyro, and existing closed-loop fiber optic gyroscope instrument all is the bottom that the light source installing plate is installed in fiber optic loop, when this makes light source works easily, the change of temperature field of fiber optic loop is asymmetric, temperature by the bottom of fiber optic loop gradually to top conductive, make the thermograde on fiber optic loop bottom and top too big, cause the heat balance time of fiber optic loop long, the constant multiplier of optical fibre gyro, the zero inclined to one side stability that reaches are changed with the fiber optic loop variation of temperature.
The utility model content
At above-mentioned technical matters, the utility model aims to provide a kind of novel closed-loop fiber optic gyroscope instrument that can reduce the temperature field to the fiber optic loop influence.
For realizing this technical purpose, the technical solution of the utility model is: a kind of improved closed-loop fiber optic gyroscope, comprise by fiber optic loop and the fiber optic loop assembly formed with the light source fabricated section that fiber optic loop is complementary, described light source fabricated section is provided with the light source installing plate that light source is installed, and the medium position of the inwall of fiber optic loop is provided with the heat radiation dividing plate; The annulus that the inner diameter that described light source fabricated section is external diameter and fiber optic loop is complementary, annulus have the light source installing plate that projects to the ring heart; When being combined into the fiber optic loop assembly, fiber optic loop is fixed on light source fabricated section suit on the heat radiation dividing plate.
As improvement, described heat radiation dividing plate is circular.
As further improvement, described heat radiation dividing plate and light source fabricated section are provided with the screw of mutual coupling, and be fixedly connected by screw.
As further improvement, it also includes a seal base that can be installed on fiber optic loop bottom.
This scheme places the symmetric position of fiber optic loop with the light source of thermal source, the thermograde that this reduces fiber optic loop, make the temperature field symmetry of fiber optic loop change to have reduced optic fiber gyroscope graduation factor, zero partially and stability with variation of temperature; In addition, guaranteeing that the structure of this scheme has improved the structural strength of fiber optic loop greatly, and the ability of optical fibre gyro anti-vibrating and impact is greatly improved under the prerequisite that the optical fibre gyro quality does not increase.This programme will provide the technology implementation platform for the through engineering approaches of middle high-precision optical fiber gyro, the technology of traditional scheme that this programme is compatible fully simultaneously.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Fig. 1 is the structural representation of the light source fabricated section of prior art.
Fig. 2 is the structural representation of the fiber optic loop of prior art.
Fig. 3 is the cut-open view of the fiber optic loop assembly of prior art.
Fig. 4 is the front view of light source fabricated section of the present utility model.
Fig. 5 is that the A-A of light source fabricated section band light source of the present utility model is to cut-open view.
Fig. 6 is the front view of fiber optic loop of the present utility model.
Fig. 7 is that the B-B of fiber optic loop of the present utility model is to cut-open view.
Fig. 8 is the structural representation of fiber optic loop assembly of the present utility model.
Embodiment
What Fig. 1 was extremely shown in Figure 3 is closed-loop fiber optic gyroscope of the prior art, as can be seen, existing closed-loop fiber optic gyroscope instrument comprises by fiber optic loop 1 and the fiber optic loop assembly formed with the light source fabricated section 2 that fiber optic loop is complementary, described light source fabricated section is provided with the light source installing plate 3 that light source 4 is installed, the light source fabricated section is installed in the bottom of fiber optic loop, light source also just is set at the bottom of fiber optic loop, when this just makes light source works easily, the change of temperature field of fiber optic loop is asymmetric, temperature by the bottom of fiber optic loop gradually to top conductive, make the thermograde on fiber optic loop bottom and top too big, cause the heat balance time of fiber optic loop long, make the constant multiplier of optical fibre gyro, zero reaches stability partially changes with the fiber optic loop variation of temperature.
To shown in Figure 8, a kind of improved closed-loop fiber optic gyroscope of the present utility model, the medium position of the inwall 11 of its fiber optic loop 1 are provided with heat radiation dividing plate 12 as Fig. 4; Light source fabricated section 2 is the annulus that the inner diameter of external diameter and fiber optic loop is complementary, and annulus has the light source installing plate 3 that projects to the ring heart; When being combined into the fiber optic loop assembly, fiber optic loop is fixed on light source fabricated section suit on the heat radiation dividing plate 12.The heat radiation dividing plate mainly contains three effects, and the one, to light source heat radiation; The 2nd, install and fix the light source installing plate; The 3rd, the structural strength of raising fiber optic loop is strengthened the ability of optical fibre gyro anti-vibrating and impact.
In this specific embodiment, heat radiation dividing plate 12 is circular; Heat radiation dividing plate and light source fabricated section are provided with the screw of mutual coupling, and be fixedly connected by screw.
Claims (4)
1. improved closed-loop fiber optic gyroscope, comprise by fiber optic loop (1) and the fiber optic loop assembly formed with the light source fabricated section (2) that fiber optic loop is complementary, described light source fabricated section is provided with the light source installing plate (3) that light source (4) is installed, and it is characterized in that: the medium position of the inwall (11) of described fiber optic loop (1) is provided with heat radiation dividing plate (12); Described light source fabricated section (2) is the annulus that the inner diameter of external diameter and fiber optic loop is complementary, and annulus has the light source installing plate (3) that projects to the ring heart; When being combined into the fiber optic loop assembly, fiber optic loop is fixed on light source fabricated section suit on the heat radiation dividing plate (12).
2. closed-loop fiber optic gyroscope according to claim 1 is characterized in that: described heat radiation dividing plate (12) is for circular.
3. closed-loop fiber optic gyroscope according to claim 2 is characterized in that: described heat radiation dividing plate and light source fabricated section are provided with the screw of mutual coupling, and be fixedly connected by screw.
4. according to each described closed-loop fiber optic gyroscope in the claim 1 to 3, it is characterized in that: it also includes a seal base (5) that can be installed on fiber optic loop bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202051924U CN201514217U (en) | 2009-09-18 | 2009-09-18 | Improved closed loop fiber optic gyro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202051924U CN201514217U (en) | 2009-09-18 | 2009-09-18 | Improved closed loop fiber optic gyro |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514217U true CN201514217U (en) | 2010-06-23 |
Family
ID=42485629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202051924U Expired - Fee Related CN201514217U (en) | 2009-09-18 | 2009-09-18 | Improved closed loop fiber optic gyro |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674056A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Optical fiber ring encircling method for reducing starting zero offset of fiber-optic gyroscope |
| US10320438B2 (en) * | 2016-08-24 | 2019-06-11 | Power Idea Technology (Shenzhen) Co., Ltd. | Waterproof structure and mobile phone using the same |
-
2009
- 2009-09-18 CN CN2009202051924U patent/CN201514217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674056A (en) * | 2012-09-07 | 2014-03-26 | 中国航空工业第六一八研究所 | Optical fiber ring encircling method for reducing starting zero offset of fiber-optic gyroscope |
| CN103674056B (en) * | 2012-09-07 | 2016-06-01 | 中国航空工业第六一八研究所 | A kind of reduce fiber optic gyro and start zero inclined optical fiber ring winding method |
| US10320438B2 (en) * | 2016-08-24 | 2019-06-11 | Power Idea Technology (Shenzhen) Co., Ltd. | Waterproof structure and mobile phone using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shaanxi Huayan Aero-Instrument Co., Ltd. Assignor: Shenzhen Puyun Aviation Photoelectricity Science & Technology Co., Ltd. Contract record no.: 2011610000027 Denomination of utility model: Improved closed loop fiber optic gyro Granted publication date: 20100623 License type: Exclusive License Record date: 20110527 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20170918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |