A multi-purpose modular fiber optic ring screening test system and method

Abstract

This invention relates to a multi-purpose modular fiber optic ring screening and testing system and method. The system includes a base plate, a screening ring assembly, a fiber optic cable, and an adapter plate. The screening ring assembly includes a detector plate, a ring frame base, a light source base, a fiber coil plate, and optical devices. The light source base is mounted on the base plate. The fiber coil plate is placed on the light source base. The ring frame base is mounted on the fiber coil plate. The detector plate is connected to the ring frame base. The optical devices are connected to the fiber coil plate for connecting to the screening module. The module to be screened is mounted on the adapter plate. The adapter plate is fixed to the base plate. The fiber optic cable connects the screening ring assembly and the adapter plate. Compared with the prior art, this invention achieves multi-purpose screening ring requirements by designing a series of fiber coil plates, fiber optic cables, and adapter base plates. Furthermore, by reserving multiple fiber optic splice interfaces, it can simultaneously screen rings and ring modules when necessary.

Description

Technical Field

[0001] This invention relates to the field of fiber optic gyroscope technology, and in particular to a multi-purpose modular fiber optic ring screening and testing system and method. Background Technology

[0002] A fiber optic gyroscope is an inertial measurement instrument based on the Sagnac effect. The fiber optic loop, as the core component of the gyroscope, is highly sensitive to changes in the surrounding environment, with temperature being the most significant factor. Meanwhile, waveguides and couplers, as important optical components, together with the fiber optic loop, form a fiber optic loop module (hereinafter referred to as the loop module). Due to factors such as the fiber's melting point and the mounting process, the performance of the loop module directly affects the overall performance of the gyroscope.

[0003] Before the final assembly of the gyroscope, the performance of the ring or ring module is screened and tested. The purpose is to determine in advance whether the fiber optic ring can meet the gyroscope's usage requirements. During the screening process, in addition to the fiber optic ring or ring module itself, which serves as the screening component, a light source, connectors, and some fixing fixtures are also required. Existing ring screening systems often have relatively simple fiber optic fusion splice interfaces, resulting in the inability to screen only one type of ring or ring module, and thus preventing flexible switching between the two. Furthermore, the fixed hole positions limit the screening capabilities of existing ring screening systems to a single size of ring module. When different sizes of ring modules need to be screened, the structure must be remanufactured, leading to significant resource waste.

[0004] In conclusion, it is essential to design a screen ring system that is applicable to both fiber optic rings and fiber optic ring modules, and can be modularly assembled to flexibly meet different size requirements. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multi-purpose modular fiber optic ring screening and testing system and method. By designing a series of fiber coils, fiber optic boards and adapter plates, the multi-purpose screening ring requirements are met. At the same time, by reserving multiple fiber optic fusion splice interfaces, the rings and ring modules can be screened simultaneously when necessary.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] The first objective of this invention is to provide a multi-purpose modular fiber optic ring screening and testing system, comprising a base plate, a screening ring assembly, a fiber-passing board, and an adapter board. The screening ring assembly includes a detector board, a ring frame base, a light source base, a fiber coil board, and optical devices. The light source base is mounted on the base plate. The fiber coil board is placed on the light source base. The ring frame base is mounted on the fiber coil board. The detector board is connected to the ring frame base. The optical devices are connected to the fiber coil board for connecting to the screening module. The module to be screened is mounted on the adapter board. The adapter board is fixed to the base plate. The fiber-passing board connects the screening ring assembly and the adapter board.

[0008] Furthermore, the optical device includes a Y-waveguide and a coupler; both the Y-waveguide and the coupler are mounted on a fiber optic disc. Furthermore, one end of the coupler is fused to the light source output fiber, another fiber on the same side is connected to the detector, and the other end of the fiber is connected to the Y-waveguide on the fiber optic disc.

[0009] Furthermore, the coupler is a 2×2 coupler.

[0010] Furthermore, the light source base is mounted on the base plate with screws; the ring frame base is mounted on the fiberboard with screws.

[0011] Furthermore, a stud is installed on the ring frame base; the detection plate is fixed on the stud.

[0012] Furthermore, the multi-purpose modular fiber optic ring screening and testing system also includes a top cover and an adapter stud; the top cover is connected to the base plate; the adapter stud is connected to the base plate, and is used to fix the entire multi-purpose modular fiber optic ring screening and testing system on the turntable.

[0013] Furthermore, the multi-purpose modular fiber optic ring screening test system also includes a connector window; the connector window is located on the upper cover and is used to install connectors to fix the multi-purpose modular fiber optic ring screening test system.

[0014] Furthermore, the module to be screened is a fiber optic ring to be screened or a ring module to be screened.

[0015] Furthermore, the screening ring module includes a screening fiber ring, a screening waveguide, and a screening coupler.

[0016] Furthermore, for rings of different sizes, the adapter plate can be pre-drilled with holes of various mounting sizes.

[0017] Furthermore, the detection plate, ring frame base, fiber optic board, adapter plate, base plate, light source base, fiber optic coil, and top cover are made of aluminum.

[0018] The second objective of this invention is to provide a multi-purpose modular fiber optic ring screening test method for the aforementioned multi-purpose modular fiber optic ring screening test system, comprising the following steps:

[0019] (1) Install the light source base on the base plate with screws, then place the fiber optic plate on the light source base, align the holes, and install the ring frame base on the fiber optic plate and tighten it with screws.

[0020] (2) Fix the detector plate onto the ring frame base;

[0021] (3) Install the screening module on the adapter plate, then fix the adapter plate in the corresponding hole on the base plate, and then install the fiberboard;

[0022] (4) The screen ring assembly has a reserved fiber optic interface. Connect the reserved fiber optic interface of the screen ring assembly to the module to be screened, fix the fiber optic cable, fix the fiber optic cable on both sides to the fiber optic plate and the adapter plate respectively, and fix the transition fiber optic cable on the fiber optic plate.

[0023] (5) Fix the modular fiber optic ring screening test system;

[0024] (6) Connect the power supply to the modular fiber optic ring screening test system and start the ring screening.

[0025] Further, the specific process of step (5) is as follows: extend the connector out of the system through the connector window (12) and install the cover (13), and complete the fixing of the whole system according to the specific test requirements.

[0026] Optionally, the optical device of the screening ring assembly includes a Y-waveguide and a coupler; the Y-waveguide and coupler are mounted on a fiber optic disc; one end of the coupler is fused with the light source output fiber, the other end of the coupler is connected to the detector, and the other end of the coupler is connected to the Y-waveguide on the fiber optic disc; the screening module is a screening fiber ring; the screening fiber ring is connected to the Y-waveguide output fiber of the optical device of the screening ring assembly.

[0027] Optionally, the optical devices of the screening ring assembly include a Y-waveguide and a coupler; the Y-waveguide and coupler are mounted on a fiber optic disc; one end of the coupler is fused with the light source output fiber, and the other end of the coupler is connected to the detector; the screening module is a screening ring module; the screening ring module is connected to the output fiber of the coupler.

[0028] Furthermore, the specific implementation steps of the multi-purpose modular fiber optic ring screening test method are as follows:

[0029] (1) Install the light source base on the base plate, and install the fiber optic tray and ring frame base to support the fiber optic tray (fiber optic tray) and other optical devices;

[0030] (2) Install a Y-waveguide and a 2×2 coupler on the fiber optic cable, fusion splice one end of the coupler to the light source fiber, connect the other fiber on the same side to the detector, connect the other end of the fiber to the Y-waveguide on the fiber optic cable, and mark it here.

[0031] (3) Install the fiber optic board and adapter board;

[0032] (4) Install the detector plate (1) above the light source base, and install the detector on the circuit board at the same time;

[0033] (5) Install the ring or ring module (to be screened) to be screened on the adapter plate. If the ring needs to be tested, connect it directly to the Y-wave guide fiber of the screening component itself. If the ring module needs to be tested, break the melting point of the coupler and Y-waveguide on the screening ring component and connect the coupler fiber directly to the module to be screened.

[0034] The above steps include the following characteristics:

[0035] In step (2), the remaining optical fibers of the coupler and Y waveguide should be coiled on the ring frame base and secured with glue. All melting point positions should be marked and sleeves should be installed.

[0036] In step (4), after the detector plate (1) is installed, the cable is fixed with an M2×4 slotted cylindrical head screw to prevent shaking during the test.

[0037] In step (5), after splicing the optical fiber, use UV adhesive to fix the optical fiber to the fiber optic board, keeping the length of the suspended optical fiber less than 2mm. To obtain more accurate data, the amount of UV adhesive applied here should not be too much to prevent temperature changes from causing deformation of the adhesive and affecting the performance of the ring module. When testing the ring module, the Y-waveguide pigtail on the screen ring assembly will be exposed. At this time, high-temperature tape needs to be used to fix it to the base plate to prevent it from falling off.

[0038] Furthermore, different fiber optic interfaces are reserved to accommodate different types of screen ring requirements, while different adapter boards are used to meet the screen ring requirements of different sizes.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1) The multi-purpose modular fiber optic ring screening test system and method of the present invention, due to the reserved fiber optic interface, can quickly switch to meet different screening ring requirements. It can be transformed from a screening ring into a screening ring module simply by breaking the melting point of the coupler and Y-waveguide in the screening ring assembly, thus improving screening ring efficiency.

[0041] 2) The multi-purpose modular fiber optic ring screening and testing system and method of the present invention allows for the direct pre-reservation of various installation sizes of holes on the adapter plate for rings of different sizes. If necessary, ring modules of different sizes can be screened simultaneously without affecting each other.

[0042] 3) The multi-purpose modular fiber optic ring screening test system and method of the present invention, since the optical fibers are fixed with glue everywhere and the structural components are fastened with screws, the whole system can be rotated for scaling tests, which also adds an examination dimension to the screening of ring modules.

[0043] 4) The multi-purpose modular fiber optic ring screening test system and method of the present invention are made entirely of aluminum, which is lightweight and simplifies the production process, reduces operation time and human error costs, and therefore has low cost and high reliability.

[0044] Based on the above advantages and effects, the multifunctional screen ring system of the present invention has broad application prospects in the screen ring process. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the multi-purpose modular fiber optic ring screening test system in Embodiment 1 of this technical solution (with the module to be screened installed).

[0046] Figure 2 This is a schematic diagram of the multi-purpose modular fiber optic ring screening and testing system in Embodiment 1 of this technical solution.

[0047] Figure 3 This is a schematic diagram of the external structure of the multi-purpose modular fiber optic ring screening test system in Embodiment 2 of this technical solution.

[0048] Figure 4 This is a schematic diagram of the multi-purpose modular fiber optic ring screening test system in Embodiment 1 of this technical solution (without the module to be screened installed).

[0049] The numbers in the diagram are as follows:

[0050] 1. Detector plate, 2. Ring frame base, 3. Fiberboard, 4. Adapter plate, 5. Base plate, 6. Light source base, 7. Y waveguide, 8. Coupler, 9. Fiberboard, 10. Stud, 11. Adapter stud, 12. Connector window, 13. Top cover, 14. Module to be screened, 15. Detector. Detailed Implementation

[0051] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.

[0052] Example 1

[0053] like Figures 1-2 As shown in Figure 4, this embodiment provides a multi-purpose modular fiber optic ring screening and testing system. The system includes a base plate 5, a screening ring assembly, a fiber optic feed plate 3, and an adapter plate 4. The screening ring assembly includes a detector plate 1, a ring frame base 2, a light source base 6, a fiber optic coil 9, and optical devices. The light source base 6 is mounted on the base plate 5 with screws. The fiber optic coil 9 is placed on the light source base 6. The ring frame base 2 is mounted on the fiber optic coil 9 with screws. The detector plate 1 is connected to the ring frame base 2. The optical devices are connected to the fiber optic coil 9 for connecting to the screening module 14. The screening module 14 is mounted on the adapter plate 4. The adapter plate 4 is fixed to the base plate 5. The fiber optic feed plate 3 connects the screening ring assembly and the adapter plate 4.

[0054] The optical device includes a Y-waveguide 7 and a coupler 8; both the Y-waveguide 7 and the coupler 8 are mounted on a fiber optic tray 9. One end of the coupler 8 is fused to the light source fiber, and another fiber on the same side is connected to the detector 15. The other end of the fiber is connected to the Y-waveguide 7 on the fiber optic tray 9.

[0055] The coupler 8 is a 2×2 coupler.

[0056] The ring frame base 2 is equipped with 6 studs 10; the detection plate 1 is fixed on the studs 10.

[0057] The screening module 14 is a screening fiber ring or a screening ring module.

[0058] The screening ring module includes a screening fiber ring, a screening waveguide, and a screening coupler.

[0059] For rings of different sizes, the adapter plate 4 can be pre-drilled with holes of various installation sizes.

[0060] This embodiment also provides a multi-purpose modular fiber optic ring screening test method for the above-mentioned multi-purpose modular fiber optic ring screening test system, including the following steps:

[0061] (1) Install the light source base 6 on the base plate 5 with screws, then place the fiber optic plate 9 on the light source base 6, align the holes, and install the ring frame base 2 on the fiber optic plate 9 and tighten it with screws.

[0062] (2) Install 6 studs 10 and fix the probe plate 1 on the studs 10;

[0063] (3) Install the screening module 14 on the adapter plate 4, then fix the adapter plate 4 in the corresponding hole of the base plate 5, and then install the fiberboard 3.

[0064] (4) The screen ring assembly has a reserved fiber optic interface. The reserved fiber optic interface of the screen ring assembly is connected to the screening module 14. The fiber optic is fixed with UV glue. The fiber optics on both sides are fixed on the fiber optic plate 9 and the adapter plate 4 respectively. The transition fiber optic is fixed on the fiber optic plate 3.

[0065] (5) Fix the modular fiber optic ring screening test system;

[0066] (6) Connect the power supply to the modular fiber optic ring screening test system and start the ring screening.

[0067] If the fiber optic ring needs to be tested, connect it directly to the Y-waveguide 7 output of the screening component itself. If the ring module needs to be tested, break the melting point of the coupler 8 and Y-waveguide 7 on the screening ring component, and connect the output of the coupler 8 directly to the ring module under test.

[0068] After the optical fibers of coupler 8 and Y waveguide 7 are fused together, they should be coiled on the ring frame base 2 and secured with glue. All fusion point positions should be marked and sleeves should be installed.

[0069] After the circuit board is installed, use M2×4 slotted cylindrical head screws to secure the connector to prevent it from shaking during testing.

[0070] After splicing the optical fibers, use UV adhesive to fix the fibers to the fiber optic plate 3, keeping the length of the suspended fiber less than 2mm. To obtain more accurate data, the amount of UV adhesive applied here should not be excessive to prevent temperature changes from causing deformation of the adhesive and affecting the performance of the ring module. When testing the ring module, the Y-waveguide 7 pigtail on the screen ring assembly will be exposed. At this time, it needs to be fixed to the base plate 5 with high-temperature tape to prevent it from falling off.

[0071] Different fiber optic interfaces are reserved to accommodate different types of screen ring requirements, while different adapter boards 4 are used to meet the requirements of screen rings of different sizes.

[0072] like Figure 1 As shown, the rings or ring modules to be screened are installed on the adapter plate 4. The adapter plate 4 can be replaced to accommodate fiber optic rings with different mounting apertures. After installation, the optical fiber is connected to the left-side screening ring assembly via the fiber optic cable 3, completing the screening ring function of the entire device. Simultaneously, the sufficiently large base plate 5 can accommodate the simultaneous screening of multiple rings. Figure 1 Only one set of filtering components is indicated.

[0073] like Figure 2 The diagram shows the installation of optical components in the system. Figure 2 Only a portion of the middle and bottom plate 5 and other structures are shown; they do not affect the structure of the screen ring assembly. Figure 2This is a schematic diagram showing the removal of the screen ring assembly from detector plate 1. The connection point between coupler 8 and Y-waveguide 7 should be marked to facilitate subsequent docking with different ring modules.

[0074] Example 2

[0075] like Figure 3 As shown, this embodiment provides a multi-purpose modular fiber optic ring screening and testing system. Based on Embodiment 1, the multi-purpose modular fiber optic ring screening and testing system of this embodiment further includes: an upper cover 13, an adapter stud 11, and a connector window 12; the upper cover 13 is connected to the base plate 5; the adapter stud 11 is connected to the base plate 5 and is used to fix the entire multi-purpose modular fiber optic ring screening and testing system on the turntable; the connector window 12 is provided on the upper cover 13 and is used to install connectors to fix the multi-purpose modular fiber optic ring screening and testing system.

[0076] This embodiment also provides a multi-purpose modular fiber optic ring screening test method for the above-mentioned multi-purpose modular fiber optic ring screening test system, including the following steps:

[0077] (1) Install the light source base 6 on the base plate 5 with screws, then place the fiber optic plate 9 on the light source base 6, align the holes, and install the ring frame base 2 on the fiber optic plate 9 and tighten it with screws.

[0078] (2) Install 6 studs 10 and fix the probe plate 1 on the studs 10;

[0079] (3) Install the screening module on the adapter plate 4, then fix the adapter plate 4 in the corresponding hole of the base plate 5, and then install the fiberboard 3.

[0080] (4) The screen ring assembly has a reserved fiber optic interface. Connect the reserved fiber optic interface of the screen ring assembly to the module to be screened, fix the fiber optic, fix the fiber optic on both sides to the fiber optic plate 9 and the adapter plate 4 respectively, and fix the transition fiber optic on the fiber optic plate 3.

[0081] (5) Extend the connector through the connector window 12 into the system and install the cover 13. Fix the entire system according to the specific test requirements and fix the modular fiber ring screening test system.

[0082] (6) Connect the power supply to the modular fiber optic ring screening test system and start the ring screening.

[0083] like Figure 3 As shown, after installing the top cover 13, the entire system is sealed to a certain extent, which is effective in isolating it from external disturbances. Using the adapter stud 11 to fix the entire system to the turntable can reduce the impact of external vibrations to some extent. At the same time, the adapter stud 11 allows for the stacking of multiple systems, further improving testing efficiency.

[0084] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A multi-purpose modular fiber optic ring screening and testing system, characterized in that, The multi-purpose modular fiber optic ring screening and testing system includes a base plate (5), a screening ring assembly, a fiber optic board (3), and an adapter plate (4). The screen ring assembly includes a detection plate (1), a ring frame base (2), a light source base (6), a fiber optic plate (9), and optical devices; The light source base (6) is mounted on the base plate (5); The fiberboard (9) is placed on the light source base (6); The ring frame base (2) is mounted on the fiberboard (9); The detection plate (1) is connected to the ring frame base (2); The optical device is connected to the fiber optic plate (9) and is used to connect to the receiving screen module; The screening module is installed on the adapter plate (4); The adapter plate (4) is fixed on the base plate (5); The fiberboard (3) connects the screen ring assembly and the adapter plate (4); The optical device includes a Y-waveguide (7) and a coupler (8); The Y-waveguide (7) and coupler (8) are both mounted on the fiber optic disc (9); A stud (10) is installed on the ring frame base (2); The detection plate (1) is fixed on the stud (10); The multi-purpose modular fiber optic ring screening and testing system also includes a top cover (13) and an adapter stud (11). The upper cover (13) is connected to the bottom plate (5); The adapter stud (11) is connected to the base plate (5) to fix the entire multi-purpose modular fiber optic ring screening test system on the turntable; The multi-purpose modular fiber optic ring screening test system also includes a connector window (12). The connector window (12) is located on the upper cover (13) and is used to install connectors to fix the multi-purpose modular fiber optic ring screening test system. The detector plate (1), ring frame base (2), fiberboard (3), adapter plate (4), base plate (5), light source base (6), fiberboard (9), and top cover (13) are made of aluminum.

2. The multi-purpose modular fiber optic ring screening and testing system according to claim 1, characterized in that, The light source base (6) is mounted on the base plate (5) by screws; The ring frame base (2) is mounted on the fiberboard (9) by screws.

3. The multi-purpose modular fiber optic ring screening and testing system according to claim 1, characterized in that, The module to be screened is either a fiber optic ring to be screened or a ring module to be screened.

4. A multi-purpose modular fiber optic ring screening test method for a multi-purpose modular fiber optic ring screening test system as described in any one of claims 1-3, characterized in that, Includes the following steps: (1) Install the light source base (6) on the base plate (5), then place the fiberboard (9) on the light source base (6), align the holes, and then install the ring frame base (2) on the fiberboard (9) and tighten it with screws; (2) Fix the detector plate (1) onto the ring frame base (2); (3) Install the screening module (14) on the adapter plate (4), then fix the adapter plate (4) on the corresponding hole of the base plate (5), and then install the fiberboard (3). (4) The sieve ring assembly has a reserved fiber optic interface. Connect the reserved fiber optic interface of the sieve ring assembly to the module to be screened (14), fix the fiber optic, fix the fiber optic on both sides to the fiber optic plate (9) and the adapter plate (4), and fix the transition fiber optic on the fiber optic plate (3). (5) Fix the modular fiber optic ring screening test system; (6) Connect the power supply to the modular fiber optic ring screening test system and start the ring screening.

5. The multi-purpose modular fiber optic ring screening test method according to claim 4, characterized in that, The optical devices of the screen ring assembly include a Y waveguide (7) and a coupler (8). The Y-waveguide (7) and coupler (8) are mounted on the fiber optic disc (9); The coupler (8) has an optical fiber and a light source output fiber fused at one end, and another optical fiber on the same side connected to the detector. The other end of the optical fiber is connected to the Y waveguide (7) on the fiber optic plate (9). The module to be screened (14) is a fiber optic ring to be screened; The fiber ring to be screened is connected to the Y-waveguide (7) of the optical device of the screen ring assembly.

6. The multi-purpose modular fiber optic ring screening test method according to claim 4, characterized in that, The optical devices of the screen ring assembly include a Y waveguide (7) and a coupler (8). The Y-waveguide (7) and coupler (8) are mounted on the fiber optic disc (9); The coupler (8) has an optical fiber fused to the light source output fiber at one end, and another optical fiber on the same side connected to the detector (15). The module to be screened is a screening ring module; The screening ring module is connected to the fiber output of the coupler (8).

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