Optical fiber ring and sensitive ring assembly double-layer general test tool
By designing a double-layer universal test fixture for optical fiber rings and sensitive ring components, the problems of single testing methods and high costs in the existing technology are solved, and multifunctional testing and efficient and accurate testing results are achieved.
Patent Information
- Application Number
- CN202422742395.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-11
AI Technical Summary
The existing technology lacks unified performance testing methods and standards for fiber optic rings and sensitive ring components, and the testing tooling has a single function, resulting in increased testing costs and low efficiency.
A double-layer universal test fixture for optical fiber rings and sensitive ring assemblies is designed. The double-layer structure is formed by setting support columns and circular mounting seats to meet the needs of optical fiber ring screening ring testing and sensitive ring assembly finished product testing, reduce test interference and improve space utilization.
It realizes multifunctional testing of optical fiber rings and sensitive ring components, reduces testing costs, and improves testing efficiency and result accuracy.
Smart Images
Figure CN223361460U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fiber optic gyroscope evaluation, in particular to a double-layer universal testing tool for a fiber optic ring and a sensitive ring assembly. Background Art
[0002] Fiber optic gyroscope is an angular rate sensor used for inertial navigation. Its working principle is based on the Sagnac effect. It is currently widely used in aerospace, aviation, shipbuilding, weaponry and other fields.
[0003] Fiber optic rings and sensitive ring assemblies are the core components of fiber optic gyros. Therefore, each fiber optic ring and sensitive ring assembly undergoes a rigorous screening and inspection process. However, there is currently no unified method or standard for testing the performance and accuracy of fiber optic rings and sensitive ring assemblies. Most tests are limited to optical indicators such as optical loss, extinction ratio, and polarization crosstalk due to improper handling of environmental noise, temperature, and magnetic fields.
[0004] In order to improve the performance test accuracy of fiber optic rings and sensitive ring components, a variety of test fixtures are often designed according to test requirements. However, due to different customer needs and improved R&D capabilities, the types of fiber optic rings are gradually increasing. In addition, fiber optic ring screening tests and finished product tests of sensitive ring components often need to be performed simultaneously. Many types of test fixtures have single functions, which increases testing costs.
[0005] Therefore, the utility model proposes a double-layer universal testing tool for optical fiber ring and sensitive ring assembly to solve the problems existing in the prior art. Utility Model Content
[0006] In response to the above problems, the present invention proposes a double-layer universal testing tool for optical fiber rings and sensitive ring assemblies. The double-layer universal testing tool for optical fiber rings and sensitive ring assemblies forms a double-layer structure by setting support columns and circular mounting seats, which can meet the two needs of optical fiber ring screening ring testing and sensitive ring assembly finished product testing at the same time, breaking the limitations of the testing tool and saving testing costs.
[0007] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a double-layer universal test tool for an optical fiber ring and a sensitive ring assembly, comprising a circular base, a circular sealing cover and a circular mounting seat, wherein a circular mounting seat is installed inside the circular base through a support assembly, the top cover of the circular base is provided with a circular sealing cover, a first optical fiber outlet is provided on the outer wall of the circular base, a first waveguide wire outlet is provided on one side of the first optical fiber outlet, a second optical fiber outlet is provided on the side of the circular mounting seat close to the circular base, a second waveguide wire outlet is provided on one side of the second optical fiber outlet, and a plurality of groups of waveguide positioning holes are provided at the bottom of the circular mounting seat.
[0008] A further improvement is that the support assembly includes a support column, the circular base is provided with multiple groups of threaded holes matching the support columns, the bottom of the support column is connected to the threaded hole, and the top of the support column is connected to the circular mounting seat.
[0009] A further improvement is that the circular mounting seat and the top of the support column are both provided with mounting holes, and the circular mounting seat is fixed to the support column by bolts in the mounting holes.
[0010] A further improvement is that a conical countersunk hole is provided at the center of the circular base, and the conical countersunk hole cooperates with screws to fix the circular base on the test platform.
[0011] A further improvement is that: a plurality of groups of ventilation holes are distributed in an array on the side wall of the circular base with the conical countersunk hole as the center of the circle.
[0012] A further improvement is that an annular clamping block is provided on the top of the circular base, and an annular clamping groove is provided on the bottom of the circular sealing cover.
[0013] The beneficial effects of the present invention are as follows: the present invention forms a double-layer structure by arranging support columns and circular mounting seats, which simultaneously meets the two needs of optical fiber ring sieve ring testing and sensitive ring component finished product testing, breaks the limitations of test tooling, and saves test costs. When used as a sensitive ring component test tooling, the lower structure can accommodate two sensitive ring components at the same time, thereby improving test efficiency. When used as an optical fiber ring sieve ring test tooling, the lower structure is used to place the optical fiber ring, and the upper structure is used to fix the waveguide and coil the optical fiber ring and the waveguide's pigtail, thereby making full use of the test space and reducing interference between the waveguide and the optical fiber ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is an assembly diagram of the present utility model.
[0015] Among them: 1. Round base; 2. Round sealing cover; 3. Round mounting seat; 4. First optical fiber outlet; 5. First waveguide wire outlet; 6. Second optical fiber outlet; 7. Second waveguide wire outlet; 8. Waveguide positioning hole; 9. Support column; 10. Threaded hole; 11. Mounting hole; 12. Conical countersunk hole; 13. Ventilation port; 14. Annular block; 15. Annular slot. DETAILED DESCRIPTION
[0016] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.
[0017] according to Figure 1As shown, this embodiment proposes a double-layer universal test fixture for optical fiber rings and sensitive ring assemblies, including a circular base 1, a circular sealing cover 2 and a circular mounting seat 3. The circular mounting seat 3 is installed inside the circular base 1 through a supporting assembly, and the top cover of the circular base 1 is provided with a circular sealing cover 2. A first optical fiber outlet 4 is provided on the outer wall of the circular base 1, and a first waveguide wire outlet 5 is provided on one side of the first optical fiber outlet 4. A second optical fiber outlet 6 is provided on the side of the circular mounting seat 3 close to the circular base 1, and a second waveguide wire outlet 7 is provided on one side of the second optical fiber outlet 6. A plurality of groups of waveguide positioning holes 8 are provided at the bottom of the circular mounting seat 3.
[0018] When testing the optical fiber ring, the circular base 1 is used to place the optical fiber ring, and the mounting seat above the support column 9 is used to wind the pigtail and waveguide line, and the Y waveguide of the optical fiber ring is fixed through the waveguide positioning hole 8 to reduce the mutual interference between the pigtail and the waveguide line. Then, the pigtail and the waveguide line are connected to the test system through the second optical fiber outlet 6, the second waveguide line outlet 7, the first optical fiber outlet 4 and the first waveguide line outlet 5, so as to test the optical fiber ring. When testing the sensitive ring component, it is only necessary to place the sensitive ring component in the base and then lead out the pigtail and the wire.
[0019] The support assembly includes a support column 9. The circular base 1 is provided with multiple groups of threaded holes 10 that match the support column 9. The bottom of the support column 9 is connected to the threaded hole 10, and the top of the support column 9 is connected to the circular mounting seat 3.
[0020] The circular mounting seat 3 is supported by multiple groups of support columns 9 and a gap is formed between the circular mounting seat 3 and the circular base 1, thereby ensuring the placement of the optical fiber ring and the winding of the pigtail and waveguide wire, reducing interference effects.
[0021] The circular mounting seat 3 and the top of the support column 9 are both provided with mounting holes 11. The circular mounting seat 3 is fixed to the support column 9 by bolts in conjunction with the mounting holes 11, and the mounting holes 11 are used to fix the support column 9 and the circular mounting seat 3.
[0022] A conical countersunk hole 12 is provided at the center of the circular base 1 , and the conical countersunk hole 12 cooperates with screws to fix the circular base 1 on the test platform.
[0023] A plurality of vents 13 are arranged in an array on the side wall of the circular base 1 with the conical countersunk hole 12 as the center. The arrangement of the plurality of vents 13 promotes a more uniform temperature gradient change inside the test fixture, thereby ensuring the accuracy of the test results.
[0024] The top of the circular base 1 is provided with an annular clamping block 14, and the bottom of the circular sealing cover 2 is provided with an annular clamping groove 15. The connection mode of the annular clamping block 14 and the annular clamping groove 15 makes the installation of the circular sealing cover 2 easier.
[0025] The double-layer universal test tool for optical fiber rings and sensitive ring components includes a double-layer structure and can be used as a universal tool for optical fiber ring screening ring testing and sensitive ring component finished product testing. When used as a finished product testing tool for sensitive ring components, the lower layer structure is mainly used to fix the sensitive ring component to be tested on the circular base 1. The internal space is sufficient to accommodate two to three sensitive ring components. The pigtails and waveguides of the sensitive ring components are arranged and fixed so that they are led out of the temperature chamber in two ways from the first optical fiber outlet 4 and the first waveguide outlet 5. Then, the circular sealing cover 2 is covered to seal the temperature chamber and the test can be carried out. Data collection, and when used as a fiber optic ring test fixture, both the upper and lower layers are used, wherein the circular base 1 of the lower layer is mainly used to place the fiber optic ring, and its space can accommodate various types of fiber optic rings with a diameter of less than 100 mm. The upper circular mounting seat 3 is mainly used to wind the fiber optic ring and the waveguide pigtail and fix the Y waveguide, and then the second fiber optic outlet 6, the second waveguide wire outlet 7, the first fiber optic outlet 4 and the first waveguide wire outlet 5 cooperate with each other to lead the pigtail and the waveguide wire to the test platform, and finally the circular sealing cover 2 is covered to seal it, so that the fiber optic ring can be tested.
[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A double-layer universal test fixture for optical fiber rings and sensitive ring components, characterized by: The invention comprises a circular base (1), a circular sealing cover (2) and a circular mounting seat (3), wherein the circular base (1) is provided with a circular mounting seat (3) via a supporting assembly, the top cover of the circular base (1) is provided with a circular sealing cover (2), the outer wall of the circular base (1) is provided with a first optical fiber outlet (4), a first waveguide wire outlet (5) is provided on one side of the first optical fiber outlet (4), a second optical fiber outlet (6) is provided on one side of the circular mounting seat (3) close to the circular base (1), a second waveguide wire outlet (7) is provided on one side of the second optical fiber outlet (6), and a plurality of groups of waveguide positioning holes (8) are provided on the bottom of the circular mounting seat (3).
2. The double-layer universal testing tool for optical fiber ring and sensitive ring assembly according to claim 1, characterized in that: The support assembly comprises a support column (9), the circular base (1) is provided with a plurality of threaded holes (10) matching the support columns (9), the bottom of the support column (9) is connected to the threaded holes (10), and the top of the support column (9) is connected to the circular mounting seat (3).
3. The double-layer universal testing tool for optical fiber ring and sensitive ring assembly according to claim 2, characterized in that: The circular mounting seat (3) and the top of the support column (9) are both provided with mounting holes (11), and the circular mounting seat (3) is fixed to the support column (9) by bolts in conjunction with the mounting holes (11).
4. The double-layer universal testing tool for optical fiber ring and sensitive ring assembly according to claim 1, characterized in that: A conical countersunk hole (12) is provided at the center of the circular base (1), and the conical countersunk hole (12) cooperates with screws to fix the circular base (1) on the test platform.
5. The double-layer universal testing tool for optical fiber ring and sensitive ring assembly according to claim 1, characterized in that: A plurality of groups of ventilation openings (13) are distributed in an array on the side wall of the circular base (1) with the conical countersunk hole (12) as the center.
6. The double-layer universal testing tool for optical fiber ring and sensitive ring assembly according to claim 1, characterized in that: An annular clamping block (14) is provided on the top of the circular base (1), and an annular clamping groove (15) is provided on the bottom of the circular sealing cover (2).