CN107576324A - A kind of optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro - Google Patents
A kind of optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro Download PDFInfo
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- CN107576324A CN107576324A CN201710910682.3A CN201710910682A CN107576324A CN 107576324 A CN107576324 A CN 107576324A CN 201710910682 A CN201710910682 A CN 201710910682A CN 107576324 A CN107576324 A CN 107576324A
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- coiling
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 97
- 238000004804 winding Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 41
- 238000009413 insulation Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention discloses a kind of optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro, winding method implementation process is as follows：If optical fiber midpoint both ends are A and B ends respectively, in second heat-insulated greenhouse, during coiling, towards A ends according to the coiling clockwise of cylindricality winding since whole section of optical fiber midpoint, coiling to half section of fiber optic coils of A half when, so that optical fiber enters first heat-insulated greenhouse, and continue according to the coiling counterclockwise of cylindricality winding until the coiling of A ends terminates；Similarly in the 3rd heat-insulated greenhouse, B ends close to optical fiber midpoint half still according to cylindricality winding counter clockwise direction coiling, coiling is to after the half of half section of optical fiber of B so that optical fiber enters the 4th heat-insulated greenhouse, then starts according to clockwise direction winding optical fiber until terminating.The present invention can guarantee that the optical fiber of fiber optic loop midpoint both sides possesses good symmetry on locus, while ensure homogenize transmission of the temperature in fiber optic loop.
Description
Technical field
The present invention relates to the fields such as Fibre Optical Sensor, fiber optic loop winding technology, optical fibre gyro, temperature analysis, particularly one kind
Optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro.
Background technology
Optical fibre gyro because with it is all solid state, start the characteristics of time is short, long lifespan, simple in construction, no-rotary part, turn into
Inertia field indispensable inertia measurement instrument, therefore the precision and stability of optical fibre gyro is improved constantly to it in inertia
The application in field is significant.The core component of optical fibre gyro is fiber optic loop, improves optical fiber gyroscope precision and stably
The key of property is the winding method of fiber optic loop and the stability of fiber optic loop environment temperature.But due to fiber optic loop to temperature and its
Sensitivity, therefore limit the application precision of optical fibre gyro.The temperature sensitivity of fiber optic loop, which is mainly reflected in temperature change, can make light
Length, diameter, stress, the refractive index of fibre change, and these changes can make optical fibre gyro produce corresponding phase error, and then
Zero bias are made to drift about.In order to suppress the influence of temperature on fiber gyro fiber optic loop, usual way be improve fiber optic loop around
Method processed, the temperature error of the optical fiber of optical fiber midpoint two is cancelled out each other, but some optical fiber ring methods due to complexity around
Mode and technique processed, all do not reach substantially in theory to the neutralization effect of temperature error.This is that to pass through fiber optic loop self-compensating
The method that mode fundamentally suppresses temperature error, while utilize the output of some approximating methods or intelligent algorithm to optical fibre gyro
It is also a kind of good selection to carry out external compensation, but the compensation way of these intelligent algorithms only rests on theoretical research rank at present
Section.
The content of the invention
The technical problems to be solved by the invention are, in view of the shortcomings of the prior art, providing a kind of optical fiber ring winding method, light
Fiber sensing equipment and optical fibre gyro, while simplifying optical fiber ring winding method, reducing around ring technological requirement, ensure in fiber optic loop
The optical fiber of point both sides possesses good symmetry on locus, while ensures homogenize transmission of the temperature in fiber optic loop.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of optical fiber ring winding method, this method
Main implementation process is as follows：If optical fiber midpoint both ends are A and B ends respectively, in second heat-insulated greenhouse, during coiling, from whole section of light
Fine midpoint starts towards A ends according to the coiling clockwise of cylindricality winding, during the half of coiling to half section of fiber optic coils of A so that optical fiber
First heat-insulated greenhouse is entered, and is continued according to the coiling counterclockwise of cylindricality winding until the coiling of A ends terminates；Similarly at the 3rd
Heat-insulated greenhouse, B ends close to optical fiber midpoint half still according to cylindricality winding counter clockwise direction coiling, coiling to half section of optical fiber of B
Half after so that optical fiber enters the 4th heat-insulated greenhouse, then start according to clockwise direction winding optical fiber until terminate.
First heat-insulated greenhouse, second heat-insulated greenhouse, the 3rd heat-insulated greenhouse, the 4th heat-insulated greenhouse are located at
In heat-insulation chamber body, and four heat-insulated greenhouses are set gradually from top to bottom, pass through thermal insulation board between adjacent two heat-insulated greenhouses
Connection.
First heat-insulated greenhouse, second heat-insulated greenhouse, the 3rd heat-insulated greenhouse, the 4th heat-insulated greenhouse are respectively provided with
In in heat-insulated outer cover.
Separated between the optical fiber in two neighboring heat-insulated greenhouse by insulating washer.
Lead between first heat-insulated top of greenhouse outer wall, second heat-insulated greenhouse bottom outer wall and the heat-insulated outer cover
Cross insulating washer separation.
The thermal insulation board is provided with hole, and the optical fiber of correspondent section enters next heat-insulated greenhouse through the hole
It is interior.
Each heat-insulated greenhouse inner chamber is vacuum, is further ensured that effect of heat insulation.
Accordingly, present invention also offers a kind of fibre-optical sensing device, including the optical fiber that four sections of connections are integral；From whole
The left end of section optical fiber arrives right-hand member, and four sections of optical fiber number consecutivelies are first, second, third, fourth section；The wherein first paragraph optical fiber inverse time
Pin turns to the first fiber optic loop, and is arranged in the first heat-insulated greenhouse；Second segment optical fiber clockwise about the second fiber optic loop is made, and
It is arranged in the second heat-insulated greenhouse；3rd section of optical fiber turns to the 3rd fiber optic loop counterclockwise, and is arranged in the 3rd heat-insulated greenhouse；
4th section of optical fiber is arranged in the 4th heat-insulated greenhouse clockwise about the 4th fiber optic loop is made.
As an inventive concept, present invention also offers a kind of optical fibre gyro, and it uses above-mentioned fibre-optical sensing device.
Compared with prior art, the advantageous effect of present invention is that：The present invention is simplifying optical fiber ring winding method, drop
While the low technological requirement around ring, it is good symmetrical that and can ensures that the optical fiber of fiber optic loop midpoint both sides possesses on locus
Property, while ensure homogenize transmission of the temperature in fiber optic loop, and then reduce the purpose of optical fibre gyro temperature error.
Brief description of the drawings
Fig. 1 is whole section of optical fiber division schematic diagram before optical fiber coiling；
Fig. 2 is fiber optic loop and heat-insulated cavity schematic diagram after optical fiber coiling of the present invention.
Embodiment
Specific implementation process of the present invention is as follows：As depicted in figs. 1 and 2, by by the fiber optic coils of one whole section of optical fiber coiling point
Into four parts, the fiber optic coils of each section all possess alone similar greenhouse room (i.e. heat-insulated greenhouse, in Fig. 1,4,5,6,7
Respectively first, second, third, fourth heat-insulated greenhouse), the material in room is heat-barrier material.During coiling from whole section of optical fiber
Point starts coiling, it is assumed that optical fiber midpoint both ends are A and B ends respectively, towards A ends according to cylindricality winding up time since optical fiber midpoint
Pin coiling, (fiber optic loop 1 can be now obtained) during the half of coiling to half section of optical fiber of A, by thermal insulation layer (i.e. thermal insulation board 8)
Hole pass into another heat-insulated greenhouse, and continue according to the coiling counterclockwise of cylindricality winding until terminating to A ends；Similarly
B ends close to optical fiber midpoint half still according to cylindricality winding counter clockwise direction coiling, after the half of coiling to B section optical fiber, together
Sample passes into another heat-insulated greenhouse by the hole on thermal insulation layer, then start according to clockwise direction winding optical fiber until
Terminate.If giving this four greenhouse names, terminate respectively I, II, III, IV to B ends since A ends, then in I Room and IV Room
Optical fiber is by counterclockwise and clockwise direction coiling, because the direction of propagation of light is opposite, space location factor is again complete respectively
Symmetrically, temperature error can just be balanced out well, the optical fiber of same II and III Room is lived apart the both sides at whole section of optical fiber midpoint, space bit
Put full symmetric, the coiling direction of optical fiber is also on the contrary, so temperature error that can also cancel out each other.In addition, in order to ensure this kind of light
The superiority that fine coil winding greenhouse homogenizes, one layer of heat-proof device must be added again outside four small greenhouses of the fiber optic loop
(i.e. heat-insulated outer cover 2), i.e., double thermal insulation outer cover is set to fiber optic loop, give fiber optic loop sufficiently equal thermal environment, fully ensure that
The temperature equalization of synchronization fiber optic loop everywhere is stable, and makes the Temperature Distribution residing for the optical fiber of fiber optic loop midpoint both sides symmetrical,
Especially to ensure the temperature change phase residing for optical fiber in the corresponding location factor of temperature of each section of optical fiber in each small greenhouse
Together.In addition, second layer heat-proof device is needed with first layer heat-proof device plus an insulating washer 3, in the heat-insulated greenhouse of first layer
Interlayer and optical fiber between also to add insulating washer, the medium in heat-proof device can be air or vacuum, but vacuum
The effect of heat insulation of medium can better, and the process vacuumized is advantageous to the remaining stress of fiber optic loop release.Therefore so
The fiber optic loop of coiling not only reduces winding and the complexity of technique for coiling, and can really ensure the optical fiber of optical fiber midpoint both sides
Symmetry spatially, it more ensure that the ability of optical fibre gyro counteracting temperature error.
Claims (9)
1. a kind of optical fiber ring winding method, it is characterised in that the main implementation process of this method is as follows：If optical fiber midpoint both ends are distinguished
It is A and B ends, it is clockwise according to cylindricality winding towards A ends since whole section of optical fiber midpoint during coiling in second heat-insulated greenhouse
Coiling, during the half of coiling to half section of fiber optic coils of A so that optical fiber enters first heat-insulated greenhouse, and continues according to cylindricality
Coiling that winding is counterclockwise is until the coiling of A ends terminates；Similarly in the 3rd heat-insulated greenhouse, B ends close to optical fiber midpoint half still
According to cylindricality winding counter clockwise direction coiling, after the half of coiling to half section of optical fiber of B so that optical fiber enters the 4th heat-insulated temperature
Room, then start according to clockwise direction winding optical fiber until terminating.
2. optical fiber ring winding method according to claim 1, it is characterised in that first heat-insulated greenhouse, second
Heat-insulated greenhouse, the 3rd heat-insulated greenhouse, the 4th heat-insulated greenhouse are in heat-insulation chamber body, and four heat-insulated greenhouses are from up to
Under set gradually, connected between adjacent two heat-insulated greenhouses by thermal insulation board.
3. optical fiber ring winding method according to claim 2, it is characterised in that first heat-insulated greenhouse, second
Heat-insulated greenhouse, the 3rd heat-insulated greenhouse, the 4th heat-insulated greenhouse may be contained within heat-insulated outer cover.
4. optical fiber ring winding method according to claim 2, it is characterised in that between the optical fiber in two neighboring heat-insulated greenhouse
Separated by insulating washer.
5. optical fiber ring winding method according to claim 3, it is characterised in that outside first heat-insulated top of greenhouse
Separated between wall, second heat-insulated greenhouse bottom outer wall and the heat-insulated outer cover by insulating washer.
6. optical fiber ring winding method according to claim 2, it is characterised in that the thermal insulation board is provided with hole, accordingly
The optical fiber of section is entered in next heat-insulated greenhouse through the hole.
7. optical fiber ring winding method according to claim 1, it is characterised in that each heat-insulated greenhouse inner chamber is vacuum.
8. a kind of fibre-optical sensing device, it is characterised in that connect the optical fiber being integral including four sections；From the left end of whole section of optical fiber
To right-hand member, four sections of optical fiber number consecutivelies are first, second, third, fourth section；Wherein first paragraph optical fiber turns to first counterclockwise
Fiber optic loop, and be arranged in the first heat-insulated greenhouse；Second segment optical fiber clockwise about the second fiber optic loop is made, and be arranged at second every
In hot greenhouse；3rd section of optical fiber turns to the 3rd fiber optic loop counterclockwise, and is arranged in the 3rd heat-insulated greenhouse；4th section of optical fiber is suitable
Hour hands turn to the 4th fiber optic loop, and are arranged in the 4th heat-insulated greenhouse.
9. a kind of optical fibre gyro, it is characterised in that using the fibre-optical sensing device described in claim 8.
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| CN201710910682.3A CN107576324A (en) | 2017-09-29 | 2017-09-29 | A kind of optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro |
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| CN201710910682.3A CN107576324A (en) | 2017-09-29 | 2017-09-29 | A kind of optical fiber ring winding method, fibre-optical sensing device and optical fibre gyro |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737947A (en) * | 2019-02-20 | 2019-05-10 | 哈尔滨工程大学 | A kind of four ring design optical fibre gyro fiber optic loop preparation methods |
| CN110926505A (en) * | 2019-12-25 | 2020-03-27 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress distribution symmetry of optical fiber ring |
| CN112525183A (en) * | 2020-12-22 | 2021-03-19 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress and temperature performance of optical fiber gyroscope |
| CN112762920A (en) * | 2020-12-25 | 2021-05-07 | 湖南航天机电设备与特种材料研究所 | Optical fiber ring structure and optical fiber ring simulation temperature measurement structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737947A (en) * | 2019-02-20 | 2019-05-10 | 哈尔滨工程大学 | A kind of four ring design optical fibre gyro fiber optic loop preparation methods |
| CN110926505A (en) * | 2019-12-25 | 2020-03-27 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress distribution symmetry of optical fiber ring |
| CN110926505B (en) * | 2019-12-25 | 2023-02-21 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress distribution symmetry of optical fiber ring |
| CN112525183A (en) * | 2020-12-22 | 2021-03-19 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress and temperature performance of optical fiber gyroscope |
| CN112525183B (en) * | 2020-12-22 | 2022-07-01 | 重庆华渝电气集团有限公司 | Optical fiber ring winding method for improving stress and temperature performance of optical fiber gyroscope |
| CN112762920A (en) * | 2020-12-25 | 2021-05-07 | 湖南航天机电设备与特种材料研究所 | Optical fiber ring structure and optical fiber ring simulation temperature measurement structure |
| CN112762920B (en) * | 2020-12-25 | 2022-10-18 | 湖南航天机电设备与特种材料研究所 | Optical fiber ring structure and optical fiber ring simulation temperature measurement structure |
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Application publication date: 20180112 |