WO2020259010A1 - 骨架装置及具有该骨架装置的光纤陀螺惯性器件 - Google Patents
骨架装置及具有该骨架装置的光纤陀螺惯性器件 Download PDFInfo
- Publication number
- WO2020259010A1 WO2020259010A1 PCT/CN2020/084845 CN2020084845W WO2020259010A1 WO 2020259010 A1 WO2020259010 A1 WO 2020259010A1 CN 2020084845 W CN2020084845 W CN 2020084845W WO 2020259010 A1 WO2020259010 A1 WO 2020259010A1
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- WIPO (PCT)
- Prior art keywords
- optic gyroscope
- fiber optic
- support
- heat dissipation
- hollow frame
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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
- G01C19/72—Gyrometers using the Sagnac effect, i.e. rotation-induced shifts between counter-rotating electromagnetic beams with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
- G01C19/721—Details
- G01C19/722—Details of the mechanical construction
Definitions
- the invention relates to an inertial measurement device, in particular to a skeleton device and an optical fiber gyroscope inertial device with the skeleton device.
- Fiber optic gyroscope is an angular rate measuring instrument based on the Sagnac effect. It has the technical advantages of simple structure, impact resistance, and large dynamic range. At the same time, it has low cost, long life and high reliability. It has been widely used in Aerospace, robot control, oil and coal mining and other fields.
- temperature of the fiber optic gyroscope changes, it will affect the measurement accuracy of the fiber optic gyroscope. For this reason, domestic and foreign researchers have done a lot of research on temperature drift error compensation of fiber optic gyroscopes.
- the spatial layout and heat dissipation performance of the inertial device skeleton also have an important impact on the stability of the fiber optic gyroscope. Therefore, it is urgent to design an effective and easy-to-engineer fiber optic gyroscope skeleton device to improve the environmental adaptability of the fiber optic gyroscope.
- the present invention provides a skeleton device with reasonable spatial layout, sufficient heat dissipation space, and capable of effectively improving the environmental adaptability of the fiber optic gyroscope.
- Another object of the present invention is to provide an optical fiber gyroscope inertial device with the above-mentioned skeleton device.
- the skeleton device of the present invention includes a skeleton body and a ring-type fixed support; the skeleton body has a base and a hollow frame extending upward from the upper surface of the base; the hollow frame is hollow and has an open top
- the hollow frame has a support assembly plane; the ring-type fixed support is installed on the support assembly plane, and the hollow inner cavity of the hollow frame is divided into two upper and lower chambers, the two chambers They are respectively a fiber optic gyroscope containing cavity located at the lower part and a power supply assembly containing cavity located at the upper part; each side wall of the hollow frame has an upper heat dissipation hole and a lower heat dissipation hole, and the upper heat dissipation hole penetrates to the power supply assembly container.
- a cavity, the lower heat dissipation hole penetrates to the accommodating cavity of the fiber optic gyroscope.
- each side wall of the hollow frame is provided with a concave platform, and the inner surface of the two adjacent side walls is connected with an assembly platform, and the concave platform and the assembly platform are located on the same horizontal plane.
- the recessed platform and the assembly platform jointly form the assembly plane of the support.
- the ring-type fixed support has a support main body and a heat dissipation connection hole, the support main body is arranged on the assembly platform, and the heat dissipation connection hole penetrates and is arranged in the middle position of the support main body.
- the ring-type fixed support member further has positioning side wings corresponding to the recessed platform one-to-one, and the positioning side wings extend from the main body of the support member to the corresponding recessed platform and are clamped in the recessed platform.
- the ring-type fixed support member also has a plurality of bolt holes for installing and fixing the power supply assembly, and the bolt holes are scattered on the surface of the ring-type fixed support member.
- connection stud for fixing the fiber optic gyroscope is provided at the connection of the inner surfaces of the two adjacent side walls of the hollow frame, and the connection stud is located below the assembly platform.
- the inner surface of the side wall of the hollow frame located below the mounting plane of the support has an arc-shaped part, which defines the inner diameter of the accommodating cavity of the fiber optic gyroscope.
- the hollow frame is a rectangular parallelepiped hollow frame.
- the technical solution adopted by the fiber optic gyroscope inertial device with the skeleton device according to the present invention includes a fiber optic gyroscope, a power module, a circuit board and a cover, and the fiber optic gyroscope is fixed upside down on the The fiber optic gyroscope accommodating cavity; the power module and the circuit board are both arranged in the power component accommodating cavity and fixed on the ring-type fixed support; after the fiber optic gyroscope line passes through the heat dissipation wiring hole It is connected to the circuit board; the cover is arranged on the outside of the hollow frame from top to bottom, and is hermetically connected with the base.
- the outer diameter of the fiber optic gyroscope is consistent with the inner diameter of the accommodating cavity of the fiber optic gyroscope.
- the frame device is provided with a ring-type fixed support and a hollow frame with a hollow and open upper end, and the hollow inner cavity of the hollow frame is divided into an optical fiber gyroscope accommodating cavity and a power supply component accommodating cavity by the ring-type fixed support.
- Fiber optic gyroscopes and power supply components provide reasonable assembly space to avoid waste of space layout.
- heat dissipation holes are hollowed out on each side wall of the hollow frame to provide enough heat dissipation space.
- the heat emitted by the fiber optic gyroscope and power supply assembly can flow freely at the openings on the side walls and the top to avoid excessive local heat.
- the measurement accuracy has an impact, so that the fiber optic gyroscope inertial device equipped with the skeleton device has higher reliability and environmental adaptability.
- Figure 1 is a schematic diagram of the skeleton body structure of the present invention.
- Figure 2 is a schematic top view of the skeleton body structure of the present invention.
- Figure 3 is a schematic view of the structure of the ring-type fixed support of the present invention.
- FIG. 4 is a schematic diagram of the internal structure of the fiber optic gyroscope inertial device of the present invention.
- FIG. 5 is a schematic diagram of the structure of the fiber optic gyroscope in the present invention.
- FIG. 6 is a schematic diagram of the overall structure of the fiber optic gyroscope inertial device of the present invention.
- Fig. 7 is an exploded view of the internal structure of the fiber optic gyroscope inertial device of the present invention.
- this embodiment discloses an optical fiber gyroscope inertial device, which has a skeleton device, an optical fiber gyroscope 10, a power module 11, a circuit board 12, and a cover 13.
- the skeleton device includes a skeleton body 1 and a ring-type fixed support 2.
- the skeleton body 1 has a base 3 and a hollow frame 4, and the hollow frame 4 extends upward from the upper surface of the base 3.
- the hollow frame 4 has a hollow rectangular parallelepiped structure with an open top.
- a recess 43 is provided in the middle of the inner surface of the four side walls, and an assembly platform 44 is provided at the junction of the inner surfaces of two adjacent side walls.
- the recess 43 and the assembly platform 44 are located on the same horizontal plane, and the horizontal plane defines the position of the support assembly plane inside the hollow frame 4.
- the side wall of the hollow frame 4 is provided with an upper heat dissipation hole 41 and a lower heat dissipation hole 42.
- the ring-type fixed support 2 is installed in the assembly plane of the support, and separates the hollow cavity of the hollow frame 4 into a fiber optic gyroscope accommodating cavity at the lower part and a power supply component accommodating cavity at the upper part.
- the upper heat dissipation hole 41 communicates with the power supply assembly accommodating cavity
- the lower heat dissipation hole 42 communicates with the fiber optic gyroscope accommodating cavity.
- the ring-type fixed support 2 has a support main body 21, a heat dissipation wiring hole 22, a positioning side wing 23 and a plurality of bolt holes 24.
- the four corners of the support body 21 are respectively arranged on the four assembly platforms 44, and the four positioning side wings 23 are respectively clamped in the four recessed platforms 43, so that the ring-type fixed support 2 is fixed.
- the heat dissipation wiring hole 22 is opened in the middle position of the support body 21, on the one hand, it is used for wiring wiring, and on the other hand, it provides an upward flow path for the heat in the accommodating cavity of the lower fiber optic gyroscope.
- the bolt holes 24 are scattered on the upper surface of the ring-type fixing support 2, and are used to fix the power module 11 and the circuit board 12, and the bolt holes 24 for fixing the power module 11 and the circuit board 12 are arranged in a staggered manner. There is enough distance to not interfere with each other.
- the fiber optic gyroscope 10 has a roughly cylindrical structure, and its side wall is provided with a screw hole 101 that is matched with a connecting stud 45, and the connecting stud 45 is arranged at the connection of the inner surface of the side wall below the assembly platform 44 ,
- the fiber optic gyroscope 10 can be fixed by connecting the two with screws.
- the fiber optic gyroscope 10 is installed upside down in the fiber optic gyroscope housing cavity, and the arc-shaped part of the inner surface of the side wall of the hollow frame 4 abuts against the outer circumference of the fiber optic gyroscope 10.
- the diameter of is consistent with the outer diameter of the fiber optic gyroscope 10, so as to avoid excessive space and size waste due to excessive gaps between the two during manufacturing or assembly.
- the power supply assembly composed of the power supply module 11 and the circuit board 12 is arranged in the power supply assembly accommodating cavity, and is connected and fixed to different bolt holes 24 of the ring-type fixing support 2 by screws 15 respectively.
- the line of the fiber optic gyroscope 10 passes through the heat dissipation wiring hole 22 and then is connected to the circuit board 12, and the power module 11 provides power.
- the circuit board 12 is fixed to the fiber optic gyroscope 10 through the ring-type fixed support 2 to achieve resonance, which can reduce additional factors that affect the measurement accuracy of the fiber optic gyroscope 10.
- the cover 13 is arranged on the outside of the hollow frame 4 from top to bottom, and is sealed with the base 3 by a sealing ring, and the fixing ears of the two are connected by screws to complete the assembly and fixing.
- the general cover 13 is used to prevent moisture and improve the impact resistance of the fiber optic gyroscope inertial device, and its thin thickness will not affect heat dissipation.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
Description
Claims (10)
- 一种骨架装置,其特征在于,包括骨架本体(1)和环式固定支撑件(2);所述骨架本体(1)具有底座(3)、自底座(3)上表面向上延伸出的镂空框架(4);所述镂空框架(4)呈中空且顶端开口的结构,镂空框架(4)内具有支撑件装配平面;所述环式固定支撑件(2)安装于该支撑件装配平面上,并将镂空框架(4)的中空内腔分隔出上下两个腔室,所述两个腔室分别为位于下部的光纤陀螺仪容置腔以及位于上部的电源组件容置腔;所述镂空框架(4)的各个侧壁均具有上部散热孔(41)和下部散热孔(42),所述上部散热孔(41)贯通至所述电源组件容置腔,所述下部散热孔(42)贯通至所述光纤陀螺仪容置腔。
- 根据权利要求1所述的骨架装置,其特征在于,所述镂空框架(4)的各个侧壁的内表面均设置有凹台(43),相邻的两个所述侧壁的内表面连接处均具有装配平台(44),所述凹台(43)和所述装配平台(44)位于同一水平面,凹台(43)和装配平台(44)共同形成所述支撑件装配平面。
- 根据权利要求2所述的骨架装置,其特征在于,所述环式固定支撑件(2)具有支撑件主体(21)和散热接线孔(22),所述支撑件主体(21)设置在所述装配平台(44)上,所述散热接线孔(22)贯穿的设置于支撑件主体(21)的中间位置。
- 根据权利要求3所述的骨架装置,其特征在于,所述环式固定支撑件(2)还具有与所述凹台(43)一一对应的定位侧翼(23),所 述定位侧翼(23)自所述支撑件主体(21)向对应的凹台(43)延伸,并卡设在凹台(43)内。
- 根据权利要求3所述的骨架装置,其特征在于,所述环式固定支撑件(2)还具有多个用于安装固定电源组件的螺栓孔(24),所述螺栓孔(24)分散布置于该环式固定支撑件(2)的表面。
- 根据权利要求2所述的骨架装置,其特征在于,所述镂空框架(4)的相邻的两个侧壁的内表面连接处设置有用于固定光纤陀螺仪(10)的连接螺柱(45),所述连接螺柱(45)位于所述装配平台(44)下方。
- 根据权利要求1所述的骨架装置,其特征在于,所述镂空框架(4)位于所述支撑件装配平面下方的侧壁内表面具有呈圆弧形的部分,该部分限定了所述光纤陀螺仪容置腔的内径。
- 根据权利要求1-7任一项所述的骨架装置,其特征在于,所述镂空框架(4)为长方体形镂空框架。
- 一种具有权利要求1-8任一项所述骨架装置的光纤陀螺惯性器件,其特征在于,包括光纤陀螺仪(10)、电源模块(11)、电路板(12)和罩壳(13),所述光纤陀螺仪(10)倒置固定于所述光纤陀螺仪容置腔内;所述电源模块(11)和电路板(12)均设置于所述电源组件容置腔内,并固定于所述环式固定支撑件(2)上;光纤陀螺仪(10)的线路穿过所述散热接线孔(22)后连接在所述电路板(12)上;所述罩壳(13)自上而下罩设在所述镂空框架(4)外部,并与所述底座(3)密封连接。
- 根据权利要求9所述的光纤陀螺惯性器件,其特征在于,所述光纤陀螺仪(10)的外径与所述光纤陀螺仪容置腔的内径一致。
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Cited By (4)
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CN113375654A (zh) * | 2021-04-29 | 2021-09-10 | 北京航天时代光电科技有限公司 | 一种环境适应性好的轻小型光纤陀螺仪 |
CN113514082A (zh) * | 2021-07-14 | 2021-10-19 | 中国人民解放军国防科技大学 | 微半球谐振陀螺结构装配夹具、装配系统及装配方法 |
CN113945226A (zh) * | 2021-08-31 | 2022-01-18 | 北京航天时代光电科技有限公司 | 一种高精度双光源冗余三轴一体光纤陀螺测量装置结构 |
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CN110260852B (zh) * | 2019-06-26 | 2021-09-28 | 东南大学 | 骨架装置及具有该骨架装置的光纤陀螺惯性器件 |
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- 2019-06-26 CN CN201910565512.5A patent/CN110260852B/zh active Active
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- 2020-04-15 LU LU101990A patent/LU101990B1/en active IP Right Grant
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CN113375654A (zh) * | 2021-04-29 | 2021-09-10 | 北京航天时代光电科技有限公司 | 一种环境适应性好的轻小型光纤陀螺仪 |
CN113514082A (zh) * | 2021-07-14 | 2021-10-19 | 中国人民解放军国防科技大学 | 微半球谐振陀螺结构装配夹具、装配系统及装配方法 |
CN113514082B (zh) * | 2021-07-14 | 2022-07-12 | 中国人民解放军国防科技大学 | 微半球谐振陀螺结构装配夹具、装配系统及装配方法 |
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CN113945226B (zh) * | 2021-08-31 | 2024-05-31 | 北京航天时代光电科技有限公司 | 一种高精度双光源冗余三轴一体光纤陀螺测量装置 |
CN114018256A (zh) * | 2021-11-03 | 2022-02-08 | 东南大学 | 一种光纤/mems双模式惯性基导航硬件系统装置 |
CN114018256B (zh) * | 2021-11-03 | 2024-01-02 | 东南大学 | 一种光纤/mems双模式惯性基导航硬件系统装置 |
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