CN202393390U - Novel structure of light source bottom plate of fiber-optic gyroscope - Google Patents
Novel structure of light source bottom plate of fiber-optic gyroscope Download PDFInfo
- Publication number
- CN202393390U CN202393390U CN2011203999067U CN201120399906U CN202393390U CN 202393390 U CN202393390 U CN 202393390U CN 2011203999067 U CN2011203999067 U CN 2011203999067U CN 201120399906 U CN201120399906 U CN 201120399906U CN 202393390 U CN202393390 U CN 202393390U
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- light source
- bottom plate
- sld
- fiber
- heat
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Abstract
The utility model discloses a novel structure of a light source bottom plate of a fiber-optic gyroscope. The novel structure is characterized in that a super luminescent diode (SLD) light source installation boss (4) is arranged on a light source bottom plate upper surface (2). The SLD light source installation boss (4) has two innovative characteristics that 1, by forming a wedge groove (5), the SLD light source installation boss (4) can be isolated from the light source bottom plate upper surface (2); and 2, by arranging a wedge slope (6), the SLD light source installation boss (4) can be combined with the light source bottom plate upper surface (2). The distribution position and area of heat which is generated by an SLD light source on the light source bottom plate upper surface (2) are effectively controlled, and the heat of the SLD light source can be symmetrically distributed around the center of the light source bottom plate, so the heat which is transferred from the light source bottom plate to a fiber-optic ring is symmetrically distributed around the center of the fiber-optic ring, errors on a Shupe effect caused by the fiber-optic ring are greatly reduced, and the temperature performance of the fiber-optic gyroscope is improved.
Description
Technical field
The utility model relates to the optical fibre gyro structure, particularly optical fibre gyro light source base arrangement.
Background technology
Optical fibre gyro light source base plate is the important structure part of optical fibre gyro, is used to install and fix the SLD light source, is installed on the fiber optic loop skeleton structure through screw light source base arrangement, constitutes the important component part of optical fibre gyro.
At present; Owing to limit by optical fibre gyro miniaturization requirement and SLD light source physical dimension, the light source back-plane design of internal optical fiber gyro product is generally cylindrical, on columniform light source plate upper surface; Be designed with the SLD light source installation base of rectangular parallelepiped in 90 ° of sector regions between the center of circle and the circumference; The heat of SLD light source is delivered on the light source plate upper surface through this boss, and this heat further is delivered to the fiber optic loop skeleton, finally acts on the fiber optic loop; Shupe effect theory by optical fibre gyro can be known; Because the heat of input is not to be symmetrically distributed about the geometric center of fiber optic loop, so this heat will introduce bigger Shupe effect errors, and the temperature performance of optical fibre gyro is had a negative impact.
Summary of the invention
To the heat that present SLD light source produces, the asymmetric adverse effect to the optical fibre gyro temperature performance that on the light source base plate, distributes has carried out improving design in order to address this problem to the light source base arrangement.
The solution of the utility model is:
A) SLD light source installation base 4, its upper surface 3 is used to install and fix the SLD light source, has and the corresponding threaded hole of SLD light source installation dimension, and boss 4 upper surfaces, 3 sizes and SLD light source installed surface size adapt;
B) there is sphenoid groove 5 between SLD light source installation base 4 and the light source board plate upper surface 2;
C) there is sphenoid slope 6 between SLD light source installation base 4 and the light source board plate upper surface 2.
The utility model is compared with the existing light source base arrangement that adopts, and has following advantage:
Through sphenoid groove between SLD light source installation base 4 and the light source plate upper surface 25 and 6 designs of sphenoid slope; Realized that the light source heat is symmetrically distributed about light source base plate center; And then the heat of having realized being transmitted on the fiber optic loop skeleton is symmetrically distributed about fiber optic loop skeleton geometric center; Reduce the caused Shupe effect errors of light source heat greatly, improved the temperature performance of optical fibre gyro complete machine.
Description of drawings
Fig. 1 is light source base plate overall appearance figure
Fig. 2 is a light source base plate vertical view
Fig. 3 is a light source base plate center section plan
Embodiment
With reference to the accompanying drawings, the embodiment of the utility model is done with explanation, the SLD light source inside of using in the optical fibre gyro is equipped with the Peltier temperature controller; Be used for the thermostatic control of SLD light source tube core, during the SLD light source works, temperature controller produces heat; A part is carried out the tube core temperature control; Another part is delivered on the upper surface (3) of light source installation base (4) through the installation base surface of light source, and heat is by way of the heat transferred passage of light source installation base (4); Wherein sphenoid groove (5) and sphenoid slope (6) are the important component parts of transmission channels; Be delivered on the light source plate upper surface (2), sphenoid groove (5) and sphenoid slope (6) control effectively to the distributing position and the zone of heat on light source plate upper surface (2), and heat is symmetrically distributed about the center of circle of light source base plate; This heat be radial by the center of circle to the circumference transmission; And further be delivered on the fiber optic loop, on fiber optic loop, distributing is symmetrically distributed about fiber optic loop frame center, and the Shupe effect errors that heat is introduced fiber optic loop obviously is reduced.Therefore, the utility model design can improve the temperature performance of optical fibre gyro.
Claims (1)
1. novel optical fiber gyro light source base arrangement is characterized in that,
A) SLD light source installation base (4), its upper surface (3) is used to install and fix the SLD light source, has and the corresponding threaded hole of SLD light source installation dimension, and boss (4) upper surface (3) size and SLD light source installed surface size adapt;
B) there is sphenoid groove (5) between SLD light source installation base (4) and the light source board plate upper surface (2);
C) there is sphenoid slope (6) between SLD light source installation base (4) and the light source board plate upper surface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999067U CN202393390U (en) | 2011-10-20 | 2011-10-20 | Novel structure of light source bottom plate of fiber-optic gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203999067U CN202393390U (en) | 2011-10-20 | 2011-10-20 | Novel structure of light source bottom plate of fiber-optic gyroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393390U true CN202393390U (en) | 2012-08-22 |
Family
ID=46668308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203999067U Expired - Lifetime CN202393390U (en) | 2011-10-20 | 2011-10-20 | Novel structure of light source bottom plate of fiber-optic gyroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202393390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623804A (en) * | 2020-07-21 | 2020-09-04 | 湖南智航联测科技有限公司 | Laser gyro test system and test method thereof |
-
2011
- 2011-10-20 CN CN2011203999067U patent/CN202393390U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111623804A (en) * | 2020-07-21 | 2020-09-04 | 湖南智航联测科技有限公司 | Laser gyro test system and test method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |