CN105806328A - Shielding structure capable of improving properties of optical fiber loop of optical fiber gyroscope - Google Patents
Shielding structure capable of improving properties of optical fiber loop of optical fiber gyroscope Download PDFInfo
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- CN105806328A CN105806328A CN201610132515.6A CN201610132515A CN105806328A CN 105806328 A CN105806328 A CN 105806328A CN 201610132515 A CN201610132515 A CN 201610132515A CN 105806328 A CN105806328 A CN 105806328A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
- G01C19/64—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams
- G01C19/66—Ring laser gyrometers
- G01C19/661—Ring laser gyrometers details
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Abstract
The invention relates to a shielding structure capable of improving properties of an optical fiber loop of an optical fiber gyroscope. The shielding structure comprises a base and a shielding cover fixedly mounted on the base, wherein the base comprises a foundation seat, a carrying plate and a plurality of separation plates laid between the base and the carrying plate; shielding plates are arranged between the base and the separation plates, the separation plates and the carrying plate, and the two adjacent separation plates; the shielding cover comprises a plurality of layers of shell layers which are embedded in sequence; a shielding shell is arranged between the two adjacent shell layers; and the base and the shielding cover are fixed through screws. By virtue of the shielding structure, influences on the optical fiber loop of the optical fiber gyroscope, caused by external environment factors, can be effectively reduced, so that noises in an optical fiber gyroscope output signal, caused by external environment fluctuation, are reduced, the measurement precision and the environment adaptability of the optical fiber gyroscope are improved, and an application range of the optical fiber gyroscope is expanded.
Description
Technical field
The present invention relates to optical fiber sensing technology and shielding construction, particularly to a kind of shielding construction improving optical fibre gyro optical fiber ring performance.
Background technology
The features such as optical fibre gyro is all solid state by it, movement-less part, cost are low, in the extensive use of the field such as Aero-Space, missile guidance.Typical optical fiber gyro system includes light source, light source coupler, integration Y wave guide, Polarization Control device, fiber optic loop, photodetector, analog-digital converter, digital to analog converter and digital processing unit composition.The light that light source sends is divided into two parts through light source coupler, and a part of light enters integration Y wave guide, and another part light is absorbed by light source coupler dead end.The light entering Y waveguide is divided into two-beam clockwise and anticlockwise, enters fiber optic loop from the two of fiber optic loop tail optical fibers.When gyro relative inertness system rotates with a fixed angular speed around its sensitive axes, due to match lattice Neck effect, fiber optic loop produces between the two-beam of reverse transfer a phase contrast being directly proportional to rotational angular velocity.The light beam of two beam reversal's transmission, after fiber optic loop, is merged into light beam by integration Y wave guide, and interferes.Photodetector detection interference light intensity, and by analog-digital converter, light intensity signal is converted to digital signal and is digitally processed device reception.Digital processing unit obtains optical fibre gyro relative inertness system around its sensitive axes rotational angular velocity after being resolved by light intensity signal, and sends feedback signal control integration Y wave guide by digital to analog converter, it is achieved the closed loop control of optical fibre gyro.
Fiber optic loop is as the key component of optical fibre gyro and sensing unit, and its performance determines certainty of measurement and the range of application of optical fibre gyro.In fiber optic loop, the optical signal of transmission is subject to outside environmental elements interference, for instance vibrations, temperature and sound wave all can cause the change of fiber middle light signal phase place, eventually passes through and resolves the noise being presented as in Optical Fiber Gyroscope.In low-precision optical fiber gyro, the impact of optical fibre gyro fiber optic loop can be ignored by environment.But in high-precision optical fiber gyro, the impact of optical fibre gyro fiber optic loop cannot be ignored by environmental factors.The shielding to environmental factors is not considered so that traditional fiber optic loop is encapsulated in high-precision optical fiber gyro and cannot use at traditional optical fibre gyro fiber optic loop encapsulating structure.
There is moving component in the fibre optic interferometer shock insulation sound insulation encapsulating structure proposed in patent CN102901521, it is impossible to use in optical fibre gyro.
Summary of the invention
In order to solve Problems existing in background technology, the present invention proposes a kind of shielding construction improving optical fibre gyro optical fiber ring performance and assembling mode thereof.
The technical solution used in the present invention is as follows:
The present invention includes base and the radome being installed on base, base includes pedestal, support board and the multilayer insulating panel being layed between pedestal and support board, it is provided with barricade between pedestal with dividing plate, between dividing plate and support board and between two pieces of adjacent dividing plates, radome includes the shell that multilamellar is nested successively, it is provided with shielding case, base and radome between adjacent two layers shell to be fixed by screw.
The base of the present invention adopts multilayer lamination structure, including the first dividing plate and the second partition that lay respectively at lower upper position between pedestal to support board, contact surface between first dividing plate and pedestal is provided with the first barricade, contact surface between first dividing plate and second partition is provided with secondary shielding plate, contact surface between second partition and support board is provided with the 3rd barricade
The corner of pedestal inner bottom surface is equipped with four pedestal boss being incremented by highly successively, each pedestal boss all has screwed hole, the corner of every piece of dividing plate and support board is equipped with the corner of a screwed hole, dividing plate and support board each through a screw through the pedestal boss screwed hole being fixedly attached to pedestal corner after sequentially passing through the dividing plate of lower section and barricade after the screwed hole of self again.
Described pedestal one side has the pedestal opening for being run through by two tail optical fibers of fiber optic loop.
Described radome adopts multilayer nest structure, multiple sizes the shell being gradually reduced is constituted.
Described radome includes the first shell of nesting, the second shell, the 3rd shell and the 4th shell successively, contact surface between first shell and the second shell is provided with the first shielding case, contact surface between second shell and the 3rd shell is provided with secondary shielding shell, contact surface between 3rd shell and the 4th shell is provided with the 3rd shielding case, between adjacent shell by shell boss mutually nested with through-hole structure after be fixedly connected with screw thread hole.
The bottom side face of described the first shell, the second shell and the 3rd shell is equipped with flange, the bottom side face of the 4th shell is equipped with for coordinating the flat board installed with base inner bottom surface, first shell, the second shell and the flange of the 3rd shell and the flat board same side of the 4th shell are equipped with the shell opener for being run through by two tail optical fibers of fiber optic loop, flat board is provided with screwed hole, screw sequentially pass through the screwed hole of flat board, support board, each layer dividing plate after fixed-link to the pedestal boss screwed hole of pedestal.
When installed, the shell opener of described each shell and pedestal opening are in position, same side, it is possible to combine.
Described pedestal, dividing plate, support board and Shell Materials are metal or engineering plastics.Described metal material is aluminum, copper or character analog material.Described engineering plastics are politef or character analog material.
Described each barricade and each shielding case select heat-barrier material, NULL or sound insulating material, and the shielding material of each layer is with any number of plies of above-mentioned three kinds of materials and sequential combination.
Described heat-barrier material is glass cotton or character analog material.Described NULL is permalloy or character analog material.Described sound insulating material is deadening felt or character analog material.
The principle that realizes of the present invention is: be positioned in shielding construction by the fiber optic loop of optical fibre gyro, and two tail optical fibers of fiber optic loop are drawn by the opening on radome and base.Shielding construction is made up of base and radome.Base is by pedestal, multilayer insulating panel, support board and is filled in shielding material therebetween and constitutes.Radome is made up of shell and the shielding material often filled between two-layer shell of multilayer nest.Shielding material can select single heat-barrier material, NULL, sound insulating material or be filled with any number of plies and sequential combination by three kinds of shielding materials as desired.Such as, the barricade in base uses deadening felt, permalloy, glass cotton from top to bottom respectively, and the shielding case in radome uses deadening felt, permalloy, glass cotton from outside to inside respectively, it is possible to reach to shield the effect of thermal and magnetic harmony simultaneously.
When filling with insulation material, it is possible to the heat radiation that blocking-up circuit part the sends impact on fiber optic loop；When filling NULL, it is possible to reduce the environmental magnetic field impact on fiber optic loop；When filling sound insulating material, it is possible to reduce the intensity of acoustic wave at fiber optic loop place, thus reducing the ambient sound waves impact on fiber optic loop.To fill sound insulating material, there is reflection and absorb in external sound wave in shell structurre, and the remaining sound wave penetrating shell on a small quantity is reflected by sound insulating material again and absorbs, and multilayer lamination structure and multilayer nest structure enhance defening effect greatly.Changed by the quantity of packed layer, the combination of shielding material kind, shielding material fill order difference, it is possible to meet the requirement to optical fibre gyro optical fiber ring performance of the different application environment.
The invention have the advantages that:
Present configuration has simple in construction, easy to process, all solid state, movement-less part and function can by the feature of demand extension.
The shielding construction of the present invention can effectively reduce outside environmental elements, the impact on optical fibre gyro fiber optic loop such as including temperature, magnetic field and sound wave, overcomes the encapsulation of existing fiber gyro fiber optic loop and cannot effectively shield the deficiency that optical fibre gyro fiber optic loop is affected by ambient temperature, magnetic field and sound wave.
The base of the present invention adopts multilayer lamination structure, radome adopts multilayer nest structure, optical fibre gyro uses described structure, can effectively reduce the outside environmental elements impact on optical fibre gyro fiber optic loop, thus reducing the noise that external environment fluctuation introduces in Optical Fiber Gyroscope, improve optical fibre gyro certainty of measurement and environmental suitability, expand the range of application of optical fibre gyro.
And the present invention is also widely applied prospect in other kinds of fibre optic interferometer, such as in Mach zehnder type interferometer, reference arm optical fiber can be put in described shielding construction, sensing ring is inserted in environment to be measured, by analyzing the interference signal of interferometer, can to environmental factors, for instance temperature, magnetic field, sound wave etc. measure.
Accompanying drawing explanation
Fig. 1 is the design sketch after present configuration is installed completely.
Fig. 2 is that present configuration base is connected by screw design sketch with radome.
Fig. 3 is embodiment base assembling design sketch.
Fig. 4 is embodiment radome assembling design sketch.
Fig. 5 is the structure sectional view of base stacked structure of the present invention and radome nested structure.
Fig. 6 is that base of the present invention and radome are for the hatch frame sectional view by two tail optical fibers of fiber optic loop.
Fig. 7 is that embodiment uses Comsol software to shielding construction simulation analysis result figure.
In figure: radome 11, screw 12, base 13, pedestal 31, first barricade 32, first dividing plate 33, secondary shielding plate 34, second partition 35, 3rd barricade 36, support board 37, first shell 41, second shell 43, 3rd shell 45, 4th shell 47, first shielding case 42, secondary shielding shell 44, 3rd shielding case 46, pedestal opening 315, pedestal boss 311, 312, 313, 314, screwed hole 331, 351, 371, shell opener 411, 431, 451, 471, shell boss 412, 432, 452, flange 414, 434, 454, screwed hole 413, 433, 453, screwed hole 435, 455, 475, flat board 474, screwed hole 476.Radome leads to fiber openings B, and shielding construction leads to fiber openings C.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes base 13 and the radome 11 being installed on base 13, base 13 includes pedestal 31, support board 37 and the multilayer insulating panel 33,35 being layed between pedestal 31 and support board 37, it is provided with barricade 32,34,36 between pedestal 31 with dividing plate 33,35, between dividing plate 33,35 and support board 37 and between adjacent two pieces of dividing plates 33,35, radome 11 includes the shell 41,43,45,47 that multilamellar is nested successively, it is provided with shielding case 42,44,46, base 13 and radome 11 between adjacent two layers shell to be fixed by screw 12.
As shown in Figure 3, the base of the present invention adopts multilayer lamination structure, including the first dividing plate 33 and the second partition 35 that lay respectively at lower upper position from pedestal 31 to support board 37, contact surface between first dividing plate 33 and pedestal 31 is provided with the first barricade 32, contact surface between first dividing plate 33 and second partition 35 is provided with secondary shielding plate 34, contact surface between second partition 35 and support board 37 is provided with the 3rd barricade 36, the corner of pedestal 31 inner bottom surface is equipped with four pedestal boss 311 being incremented by highly successively, 312, 313, 314, each pedestal boss 311, 312, 313, screwed hole is all had on 314, adopt following structural union specifically:
The corner of the first dividing plate 33 is provided with three through holes and a screwed hole 331, and the corner of the first dividing plate 33 is fixedly attached on the pedestal boss 311 of pedestal 31 4 jiaos after sequentially passing through self screwed hole 331 and the first barricade 32 each through a screw 12.
The corner of second partition 35 is provided with two through holes and a screwed hole 351, and the corner of second partition 35 is fixedly attached on the pedestal boss 312 of pedestal 31 4 jiaos after sequentially passing through the screwed hole 351 of self, secondary shielding plate the 34, first dividing plate 33 and the first barricade 32 each through a screw 12.
The corner of support board 37 is provided with a through hole and a screwed hole 371, and the corner of support board 37 is fixedly attached on the pedestal boss 313 of pedestal 31 4 jiaos after sequentially passing through screwed hole the 371, the 3rd barricade 36 of self, second partition 35, secondary shielding plate the 34, first dividing plate 33 and the first barricade 32 each through a screw 12.
Pedestal boss 312 screwed hole that the screw 12 of the first dividing plate 33, second partition 35 and support board 37 is connected to differs.
Pedestal 31 one side has the pedestal opening 315 for being run through by two tail optical fibers of fiber optic loop.
As shown in Figure 4, radome 11 adopts multilayer nest structure, multiple sizes the shell being gradually reduced is constituted.Radome 11 includes the first nested successively shell the 41, second shell the 43, the 3rd shell 45 and the 4th shell 47, contact surface between first shell 41 and the second shell 43 is provided with the first shielding case 42, contact surface between second shell 43 and the 3rd shell 45 is provided with secondary shielding shell 44, contact surface between 3rd shell 45 and the 4th shell 47 is provided with the 3rd shielding case 46, adopts following structural union specifically:
First shell 41 lateral wall be formed around the first shell boss 412, first shell boss 412 center is provided with screwed hole 413, the through hole being formed around coordinating for the first shell boss 412 embedding of the first shielding case 42 sidewall, second shell 43 lateral wall be formed around screwed hole 435, screw 12 is connected in the first shell boss 412 screwed hole 413 of the first shell 41 after sequentially passing through the through hole of screwed hole 435, first shielding case 42 of the second shell 43.
Second shell 43 lateral wall be formed around the second shell boss 432, second shell boss 432 is located between adjacent two the first shell boss 412 of the first shell 41, second shell boss 432 center is provided with screwed hole 433, the through hole being formed around coordinating for the second shell boss 432 embedding of secondary shielding shell 44 sidewall, 3rd shell 45 lateral wall be formed around screwed hole 455, screw 12 is connected in the second shell boss 432 screwed hole 433 of the second shell 43 after sequentially passing through the through hole of the screwed hole 455 of the 3rd shell 45, secondary shielding shell 44.
3rd shell 45 lateral wall be formed around the 3rd shell boss 452,3rd shell boss 452 is located between adjacent two the second shell boss 432 of the second shell 43,3rd shell boss 452 center is provided with screwed hole 453, the through hole being formed around coordinating for the 3rd shell boss 452 embedding of the 3rd shielding case 46 sidewall, 4th shell 47 lateral wall be formed around screwed hole 475, screw 12 is connected in the 3rd shell boss 452 screwed hole 453 of the 3rd shell 45 after sequentially passing through the through hole of screwed hole the 475, the 3rd shielding case 46 of the 4th shell 47.
The bottom side face of first shell the 41, second shell 43 and the 3rd shell 45 is equipped with flange 414,434,454, is sealed between two shells by shielding material for coordinating with adjacent outer shell layer；The bottom side face of the 4th shell 47 is equipped with for coordinating the flat board 474 installed with base 13 inner bottom surface, for base and radome being fixed by screw；Flat board 474 same side of flange the 414,434,454 and the 4th shell 47 of first shell the 41, second shell 43 and the 3rd shell 45 is equipped with the shell opener 411,431,451,471 for being run through by two tail optical fibers of fiber optic loop, flat board 474 is provided with screwed hole 476, screw 12 sequentially pass through the screwed hole 476 of flat board 474, support board, each layer dividing plate after fixed-link to the pedestal boss screwed hole of pedestal 31.
As shown in Figure 6, when installed, the shell opener of described each shell and pedestal opening are in position, same side, it is possible to combine.
It is illustrated in figure 5 the longitudinal sectional drawing of described shielding construction.The base illustrating structure has multilayer lamination structure, and radome has multilayer nest structure.
It is illustrated in figure 6 the transverse sectional view of described shielding construction.Illustrating for the opening by two tail optical fibers of fiber optic loop on pedestal, each shell is for by the opening of two tail optical fibers of fiber optic loop.When installation puts in place, on pedestal for by the pedestal opening of two tail optical fibers of fiber optic loop 315 and shell for can be in smoothing junction by the shell opener of two tail optical fibers of fiber optic loop, form shielding construction for by the passage of two tail optical fibers of optical fiber.
Having 2 layers of dividing plate with the base shown in Fig. 3 and Fig. 4 below, it is example that radome has the shielding construction of 4 layers of shell, and shielding construction installation steps are described:
1) at the cylindrical shell outer surface of the first shell 41 of innermost layer and outer surface of cupular part coating shielding material 42, coating thickness is highly as the criterion with the first shell cylinder shell lateral process platform 412.
2) coated first shell is embedded in the second shell 43 so that outside the first shell cylinder shell, the screwed hole 413 on boss and the screwed hole 435 on the second shell cylinder shell align, and are screwed.
3) at the cylindrical shell outer surface of the second shell 43 and outer surface of cupular part coating shielding material 44, coating thickness is highly as the criterion with the second shell cylinder shell lateral process platform 432.
4) coated second shell is embedded in the 3rd shell 45 so that outside the second shell cylinder shell, the screwed hole 433 on boss and the screwed hole 455 on the 3rd shell cylinder shell align, and are screwed.
5) at the cylindrical shell outer surface of the 3rd shell 45 and outer surface of cupular part coating shielding material 46, coating thickness is highly as the criterion with the 3rd shell cylinder shell lateral process platform 452.
6) coated 3rd shell is embedded in outermost 4th shell 47 so that outside the 3rd shell cylinder shell, the screwed hole 453 on boss and the screwed hole 475 on the 4th shell cylinder shell align, and are screwed.
7) being coated with shielding material 32 in pedestal 31, coating thickness is highly as the criterion with the shortest convex 311.After coating, coated material surface is concordant with the shortest boss 311.Coating material 32 can select heat-barrier material, NULL or sound insulating material.
8) it is fixed on first on pedestal 31 by screwed hole 331 every 33 plate screws.
9) being coated with shielding material 34 on the first dividing plate 33, coating thickness is highly as the criterion with now the shortest visible convex 312.After coating, coated material surface is concordant with now the shortest visible convex 312.Coating material 34 can select heat-barrier material, NULL or sound insulating material.
10) second partition 35 screw is fixed on pedestal 31 by screwed hole 351.
11) being coated with shielding material 36 on second partition 35, coating thickness is highly as the criterion with now the shortest visible convex 313.After coating, coated material surface is concordant with now the shortest visible convex 313.Coating material 36 can select heat-barrier material, NULL or sound insulating material.
12) support board 37 screw is fixed on pedestal by screwed hole 371.
13) radome 11 screw 12 installed is fixed on pedestal 13, make on pedestal for by the opening 315 of two tail optical fibers of fiber optic loop with on radome for being alignd by the opening 61 of two tail optical fibers of fiber optic loop.
Below with two embodiments, described shielding construction using method is described:
1) in optical fibre gyro, can sensitive optical fibre ring be put in shielding construction, make fiber optic loop and circuit part isolation, can also effectively reduce the outside environmental elements impact on optical fibre gyro fiber optic loop, thus reducing the noise that external environment fluctuation introduces, improve optical fibre gyro certainty of measurement and environmental suitability.
2) in Mach-Zehnder interferometer structure, it is possible to reference rings is put in shielding construction, sensing ring is inserted in environment to be measured, by analyzing the interference signal of interferometer, it is possible to environmental factors, for instance temperature, magnetic field, sound wave etc. measure.
As it is shown in fig. 7, for shielded sound, the embodiment of the present invention uses Comsol software to shielding construction simulation analysis result.During emulation, shielding material used is glass cotton.Abscissa is sound frequency, and unit is kHz, vertical coordinate be structure to sound attenuation, unit is dB.It can be seen that sound is had great attenuation by designed structure, it is seen that result obvious technical effects of the present invention highlights.
Claims (8)
- null1. the shielding construction improving optical fibre gyro optical fiber ring performance，It is characterized in that: include base (13) and the radome (11) being installed on base (13)，Base (13) includes pedestal (31)、Support board (37) and the multilayer insulating panel (33 being layed between pedestal (31) and support board (37)、35)，Pedestal (31) and dividing plate (33、35) between、Dividing plate (33、35) with between support board (37) and two pieces of adjacent dividing plates (33、35) barricade (32 it is provided with between、34、36)，Radome (11) includes the shell (41 that multilamellar is nested successively、43、45、47)，Shielding case (42 it is provided with between adjacent two layers shell、44、46)，Base (13) and radome (11) are fixed by screw (12).
- 2. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterized in that: include laying respectively at from pedestal (31) to support board (37) the first dividing plate (33) and the second partition (35) of lower upper position, contact surface between first dividing plate (33) and pedestal (31) is provided with the first barricade (32), contact surface between first dividing plate (33) and second partition (35) is provided with secondary shielding plate (34), contact surface between second partition (35) and support board (37) is provided with the 3rd barricade (36),The corner of pedestal (31) inner bottom surface is equipped with four pedestal boss (311 being incremented by highly successively, 312, 313, 314), each pedestal boss (311, 312, 313, 314) screwed hole is all had on, every piece of dividing plate (33, 35) and the corner of support board (37) be equipped with a screwed hole (331, 351, 371), dividing plate (33, 35) and the corner of support board (37) each through a screw (12) through self screwed hole (331, 351, 371) it is fixedly attached to the pedestal boss (311 of pedestal (31) corner after sequentially passing through the dividing plate of lower section and barricade after again, 312, 313, 314) screwed hole.
- 3. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterised in that: described pedestal (31) one side has the pedestal opening (315) for being run through by two tail optical fibers of fiber optic loop.
- 4. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterized in that: described radome (11) includes the first shell (41) nested successively, second shell (43), 3rd shell (45) and the 4th shell (47), contact surface between first shell (41) and the second shell (43) is provided with the first shielding case (42), contact surface between second shell (43) and the 3rd shell (45) is provided with secondary shielding shell (44), contact surface between 3rd shell (45) and the 4th shell (47) is provided with the 3rd shielding case (46), between adjacent shell (41) by shell boss mutually nested with through-hole structure after be fixedly connected with screw thread hole.
- null5. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1，It is characterized in that: described the first shell (41)、The bottom side face of the second shell (43) and the 3rd shell (45) is equipped with flange (414、434、454)，The bottom side face of the 4th shell (47) is equipped with for coordinating the flat board (474) installed with base (13) inner bottom surface，First shell (41)、The flange (414 of the second shell (43) and the 3rd shell (45)、434、454) and flat board (474) same side of the 4th shell (47) be equipped with the shell opener (411 for being run through by two tail optical fibers of fiber optic loop、431、451、471)，Flat board (474) is provided with screwed hole (476)，Screw (12) sequentially passes through the screwed hole (476) of flat board (474)、Support board、After each layer dividing plate, fixed-link is to pedestal (31).
- 6. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterised in that: when installed, shell opener and the pedestal opening of described each shell are in position, same side, it is possible to combine.
- 7. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterised in that: described pedestal, dividing plate, support board and Shell Materials are metal or engineering plastics.
- 8. a kind of shielding construction improving optical fibre gyro optical fiber ring performance according to claim 1, it is characterised in that: described each barricade and each shielding case select heat-barrier material, NULL or sound insulating material.
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Cited By (5)
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| CN109459009A (en) * | 2018-12-10 | 2019-03-12 | 河北汉光重工有限责任公司 | A kind of high-precision optical fiber gyro |
| CN109798887A (en) * | 2019-02-26 | 2019-05-24 | 中北大学 | Integrated optical waveguide gyroscope optoelectronic integration constructional device |
| CN112097755A (en) * | 2020-09-16 | 2020-12-18 | 上海航天控制技术研究所 | Light path component structure for optical fiber gyroscope combined system |
| CN112097756A (en) * | 2020-09-16 | 2020-12-18 | 上海航天控制技术研究所 | Miniature optical fiber gyroscope combined system for satellite |
| CN112672560A (en) * | 2020-12-18 | 2021-04-16 | 北京无线电计量测试研究所 | Temperature control device |
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| CN112097755A (en) * | 2020-09-16 | 2020-12-18 | 上海航天控制技术研究所 | Light path component structure for optical fiber gyroscope combined system |
| CN112097756A (en) * | 2020-09-16 | 2020-12-18 | 上海航天控制技术研究所 | Miniature optical fiber gyroscope combined system for satellite |
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