Simple and efficient optical path switching device for multi-channel optical test

Abstract

The invention relates to the field of optical equipment, in particular to a simple and efficient optical path switching device for multichannel optical testing, which comprises interface boards, a shading baffle, a motor, a Y-shaped optical fiber and an emergent optical fiber interface, and is characterized in that the interface boards are provided with a first incident optical fiber interface and a second incident optical fiber interface, and are positioned on two sides of the shading baffle; the light shielding baffle is used for shielding the first incident optical fiber interface and the second incident optical fiber interface, one end of the Y-shaped optical fiber is connected into the emergent optical fiber interface, and the device supports various light shielding baffle structures and movement modes, such as a fan-shaped structure matched with a rotating motor and a circular or square structure matched with a linear guide rail and a lead screw motor. According to the design, the device can be flexibly adjusted according to different application scenes and actual requirements, the adaptability and universality of the device are enhanced, the device can manage a plurality of incident optical fiber interfaces at the same time by adding an additional shading baffle, and efficient multi-channel optical testing is achieved.

Description

Technical Field

[0001] The invention relates to the field of optical equipment, and in particular to a simple and efficient optical path switching device for multi-channel optical testing. Background Art

[0002] In the process of building modern optical equipment and optical paths, especially in key applications such as testing optical color and vegetation index, traditional optical path switching methods have exposed significant limitations. These limitations are mainly reflected in the single-channel connection limitation and the shortcomings of existing optical path switching systems.

[0003] First, the single-channel connection limitation is a core issue. Traditionally, an optical device (such as a spectrometer or photodetector) can only make a single-channel connection in an optical path in an experiment. This means that when the experimental requirements involve multi-channel connections, researchers have to adopt two inefficient methods: one is to use multiple optical devices for repeated testing, which significantly increases the test time and cost; the other is to re-debug the instrument and optical path. This process is not only cumbersome, but also easy to introduce errors, further reducing the test efficiency.

[0004] Secondly, the existing optical path switching system also has many shortcomings. Take the rotating prism coupling system as an example. The system has a complex structure and relies on a motor to rotate the prism to couple light into the optical fiber. This complex structure not only increases the maintenance cost, but also during long-term use, the positioning block may fail due to wear and aging, resulting in a decrease in coupling efficiency, which in turn affects the accuracy of the test results. In addition, the method of directly moving the optical fiber for coupling also faces similar problems. Wear and aging of mechanical parts will also affect the coupling efficiency and accuracy, greatly reducing the reliability of the test results. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a simple and efficient optical path switching device for multi-channel optical testing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A simple and efficient optical path switching device for multi-channel optical testing of the present invention comprises an interface board, a light-shielding baffle, a motor, a Y-type optical fiber and an output optical fiber interface, wherein a first incident optical fiber interface and a second incident optical fiber interface are provided on the interface board, and the interface board is located on both sides of the light-shielding baffle, and the light-shielding baffle is used to shield the first incident optical fiber interface and the second incident optical fiber interface, one end of the Y-type optical fiber is connected to the output optical fiber interface, and the other end of the Y-type optical fiber is respectively connected to the first incident optical fiber interface and the second incident optical fiber interface, and a motor interface is provided on the light-shielding baffle, and the output end of the motor is connected to the motor interface.

[0007] Preferably, the shading baffle adopts any one of a fan-shaped structure, a circular structure and a square structure.

[0008] Further preferably, the motor comprises a rotating motor, and the rotating motor is adapted to a shading baffle of a fan-shaped structure.

[0009] Again preferably, it further comprises edge blocks, which are arranged on both sides of the interface plate and are adapted to the shading baffle of the fan-shaped structure.

[0010] Preferably, it also includes a linear guide rail, the motor includes a screw motor, a guide rail groove is provided on the side of the linear guide rail, an adjusting screw is rotatably installed in the guide rail groove, the screw motor is fixedly installed at the end of the linear guide rail, the adjusting screw is connected to the output end of the screw motor, a slider is slidably installed on the linear guide rail, and the slider is mounted on the adjusting screw.

[0011] Further preferably, at least two of the linear guide rails and the light-shielding baffles are provided, and the two light-shielding baffles are circular structures or square structures, and the sides of the light-shielding baffles are fixedly mounted on the slider.

[0012] Again preferably, the interface plate is installed at the bottom and top of the slider, and at least two light-shielding baffles are provided. The light-shielding baffles adopt a circular structure or a square structure, and the two light-shielding baffles are staggered up and down and are respectively adapted to the first incident optical fiber interface and the second incident optical fiber interface on the interface plate.

[0013] Preferably, guide grooves are provided at the top and bottom ends of the linear guide rail, the slider is sleeved on the linear guide rail, and the slider is slidably connected to the guide grooves via a guide rod.

[0014] Further preferably, the shading baffle is a black shading baffle.

[0015] Again preferably, the Y-type optical fiber adopts a multi-core optical fiber, or a single-core fused optical fiber.

[0016] Compared with the prior art, the present invention provides a simple and efficient optical path switching device for multi-channel optical testing, which has the following beneficial effects: Rapid switching of optical paths: The device controls the position of the light shielding plate through mechanical movement, which can quickly and accurately block or open different incident fiber interfaces. This design makes optical path switching efficient and simple, significantly improving test efficiency.

[0017] ‌ Improve test accuracy ‌: The shading baffle is made of black material, which effectively enhances the shading effect and reduces the possibility of light leakage. At the same time, the setting of the edge stopper ensures that the shading baffle stops at the predetermined position, avoiding misoperation caused by excessive movement, thereby improving the accuracy of the test ‌.

[0018] ‌Strong adaptability‌: The device supports a variety of shading baffle structures and movement modes, such as fan-shaped structure with rotating motor, circular or square structure with linear guide and lead screw motor, etc. This design enables the device to be flexibly adjusted according to different application scenarios and actual needs, enhancing its adaptability and versatility‌.

[0019] ‌Supports multi-channel testing‌: By adding additional light shielding baffles, the device can manage multiple incident fiber interfaces at the same time, realizing efficient multi-channel optical testing. This design not only improves test efficiency, but also reduces test costs‌.

[0020] ‌Stable and reliable system‌: The use of the linear guide system ensures the precise positioning and stable movement of the shading baffle, improving the reliability and accuracy of the entire system. At the same time, the slider is slidably connected to the guide groove through the guide rod, further enhancing the stability of the system‌. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the fan-shaped shading baffle used in the present invention; Figure 2 This is a schematic diagram of the assembly structure of the linear guide rail and the light shielding baffle of the present invention; Figure 3 It is a schematic diagram of the Y-type optical fiber injection structure of the present invention; Figure 4 This is a schematic diagram of the assembly structure of the linear guide rail and the interface plate of the present invention; In the figure: 1. Interface board; 2. Shading baffle; 3. First incident optical fiber interface; 4. Second incident optical fiber interface; 5. Motor interface; 6. Rotary motor; 7. Y-type optical fiber; 8. Output optical fiber interface; 9. Edge block; 10. Linear guide rail; 11. Lead screw motor; 12. Guide rail groove; 13. Adjusting lead screw; 14. Slider; 15. Guide groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4The present invention discloses a simple and efficient optical path switching device for multi-channel optical testing, comprising an interface board 1, a light shielding baffle 2, a motor, a Y-type optical fiber 7 and an output optical fiber interface 8, wherein the interface board 1 is provided with a first incident optical fiber interface 3 and a second incident optical fiber interface 4, the interface board 1 is located on both sides of the light shielding baffle 2, the light shielding baffle 2 is used to shield the first incident optical fiber interface 3 and the second incident optical fiber interface 4, one end of the Y-type optical fiber 7 is connected to the output optical fiber interface 8, and the other end of the Y-type optical fiber 7 is respectively connected to the first incident optical fiber interface 3 and the second incident optical fiber interface 4, the light shielding baffle 2 is provided with a motor interface 5, and the output end of the motor is connected to the motor interface 5.

[0024] This is a simple and efficient optical path switching device for multi-channel optical testing, which aims to provide flexible, fast and reliable optical path selection for multi-channel optical testing. By combining mechanical structure with optical fiber connection, it can realize accurate switching of optical signals between different incident optical fiber interfaces, ensuring high efficiency and accuracy during the test process.

[0025] Working principles of each preferred technical solution like Figure 1 and Figure 3 As shown, embodiment 1: Rotating shading baffle 2 solution Core components: interface board 1, light shielding baffle 2 (fan-shaped / circular / square), motor (rotating motor 6), Y-type optical fiber 7, output optical fiber interface 8.

[0026] Workflow: The interface board 1 is provided with a first incident optical fiber interface 3 and a second incident optical fiber interface 4 , which are located on both sides of the light shielding baffle 2 .

[0027] The light shielding plate 2 can be driven to rotate by a motor to selectively shield or expose one of the two incident optical fiber interfaces.

[0028] One end of the Y-type optical fiber 7 is connected to the output optical fiber interface 8 , and the other end is connected to two input optical fiber interfaces respectively, allowing the optical signal to be directed to any path according to the position of the light shielding baffle 2 .

[0029] The rotating motor 6 is adapted to the fan-shaped shading baffle 2 and connected via the motor interface 5 to achieve accurate positioning of the shading baffle 2 .

[0030] The edge blocks 9 are arranged on both sides of the interface board 1 to ensure that the light shielding baffle 2 is accurately aligned with the incident optical fiber interface.

[0031] like Figure 2 As shown, embodiment 2: linear sliding shading baffle 2 solution New components: linear guide 10, lead screw motor 11, adjusting lead screw 13, slider 14.

[0032] Workflow: The linear guide rail 10 is equipped with a guide rail groove 12 , in which a rotatable adjusting screw 13 is installed. The screw motor 11 is fixed to the end of the guide rail and connected to the adjusting screw 13 .

[0033] The slider 14 is sleeved on the adjusting screw rod 13 and can slide on the linear guide rail 10 .

[0034] At least two light shielding baffles 2 (circular or square) are provided, which are fixed on the slider 14 and change their positions as the slider 14 moves.

[0035] When the linear guide rail 10 is arranged between two incident optical fiber interfaces, the light shielding baffles 2 can be arranged in a staggered manner, so that when one shields one incident optical fiber interface, the other remains open.

[0036] The above-mentioned linear guide rail 10 can also be set up alone and arranged between the first incident fiber optic interface 3 and the second incident fiber optic interface 4, and the two shading baffles 2 are arranged alternately up and down, so that one shading baffle 2 covers one of the first incident fiber optic interface 3 or the second incident fiber optic interface 4, and the other is not covered.

[0037] like Figure 4 As shown, embodiment 3: the scheme of shading baffles 2 arranged in an up-and-down staggered manner Improvements: The interface plate 1 is installed at the bottom and top of the slider 14 on the linear guide rail 10, and at least two light shielding baffles 2 adopt a circular or square structure and are staggered up and down.

[0038] Workflow: This layout optimizes space utilization, while ensuring that each shading baffle 2 can accurately cover the corresponding incident optical fiber interface, achieving efficient switching of the optical path.

[0039] Detailed workflow summary Initialization preparation: Connect the light source to be tested to the system through an appropriate incident fiber interface. The Y-type optical fiber 7 is used as the transmission medium, and its two ends are respectively connected to different incident fiber interfaces and a single output fiber interface 8.

[0040] Select a switching mode: select one of the modes in Embodiment 1, 2 or 3 to perform the optical path switching operation according to actual needs.

[0041] To perform a switch action: For the rotary light shielding baffle 2, the rotary motor 6 is started to rotate the light shielding baffle 2 to a specified angle to shield or expose the corresponding incident optical fiber interface.

[0042] For the linear sliding shading baffle 2 , the lead screw motor 11 is activated to drive the slider 14 to move along the linear guide rail 10 , thereby adjusting the position of the shading baffle 2 .

[0043] Confirm the switching result: Check whether the light shielding baffle 2 correctly covers the target incident optical fiber interface to ensure that only the selected optical path is unobstructed.

[0044] Start optical testing: Once you have confirmed that the optical path has been switched correctly, you can start multi-channel optical testing and record and analyze the test data.

[0045] Repeat the above steps: According to the test plan, repeat the switching and testing process until all the scheduled tasks are completed.

[0046] Additional features of the first, second and third embodiments Black shading baffle: Use black material to make shading baffle 2 to reduce unnecessary light reflection and improve test accuracy.

[0047] Multi-core or multi-mode Y-type optical fiber 7: Supports the use of multi-core optical fiber or single-core optical fiber made by fused taper method to meet the needs of more types of optical signal transmission.

[0048] Expandability: In addition to the standard first incident fiber interface 3 and the second incident fiber interface 4, additional incident fiber interfaces can be added as needed, and the design and driving mechanism of the shading baffle 2 can be adjusted accordingly to match more test scenarios.

[0049] In summary, the present invention provides a simple and efficient solution to achieve optical path switching in multi-channel optical testing by cleverly combining mechanical motion and optical fiber technology, thereby significantly improving the convenience and efficiency of testing work.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A simple and efficient optical path switching device for multi-channel optical testing, characterized in that: The invention comprises an interface board (1), a light shielding baffle (2), a motor, a Y-shaped optical fiber (7) and an output optical fiber interface (8); the interface board (1) is provided with a first incident optical fiber interface (3) and a second incident optical fiber interface (4); the interface board (1) is located on both sides of the light shielding baffle (2); the light shielding baffle (2) is used to shield the first incident optical fiber interface (3) and the second incident optical fiber interface (4); one end of the Y-shaped optical fiber (7) is connected to the output optical fiber interface (8); the other end of the Y-shaped optical fiber (7) is respectively connected to the first incident optical fiber interface (3) and the second incident optical fiber interface (4); the light shielding baffle (2) is provided with a motor interface (5); the output end of the motor is connected to the motor interface (5).

2. A simple and efficient optical path switching device for multi-channel optical testing according to claim 1, characterized in that: The light shielding baffle (2) adopts any one of a fan-shaped structure, a circular structure and a square structure.

3. A simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The motor comprises a rotating motor (6), and the rotating motor (6) is adapted to a light shielding baffle (2) of a fan-shaped structure.

4. A simple and efficient optical path switching device for multi-channel optical testing according to claim 3, characterized in that: It also comprises edge blocks (9), which are arranged on both sides of the interface plate (1), and the edge blocks (9) are adapted to the light shielding baffle (2) of the fan-shaped structure.

5. A simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The invention also comprises a linear guide rail (10), wherein the motor comprises a lead screw motor (11), a guide rail groove (12) is provided on the side of the linear guide rail (10), an adjusting lead screw (13) is rotatably installed in the guide rail groove (12), the lead screw motor (11) is fixedly installed at the end of the linear guide rail (10), the adjusting lead screw (13) is connected to the output end of the lead screw motor (11), and a slider (14) is slidably installed on the linear guide rail (10), and the slider (14) is sleeved on the adjusting lead screw (13).

6. A simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: At least two of the linear guide rails (10) and the light shielding baffles (2) are provided, and the two light shielding baffles (2) are of circular or square structures, and the sides of the light shielding baffles (2) are fixedly mounted on the slider (14).

7. A simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: The interface plate (1) is mounted on the bottom and top ends of the slider (14), at least two shading baffles (2) are provided, the shading baffles (2) are of a circular structure or a square structure, and the two shading baffles (2) are arranged alternately up and down and are respectively adapted to a first incident optical fiber interface (3) and a second incident optical fiber interface (4) on the interface plate (1).

8. The simple and efficient optical path switching device for multi-channel optical testing according to claim 5, characterized in that: The top and bottom ends of the linear guide rail (10) are provided with guide grooves (15), the slider (14) is sleeved on the linear guide rail (10), and the slider (14) is slidably connected to the guide groove (15) via a guide rod.

9. A simple and efficient optical path switching device for multi-channel optical testing according to claim 2, characterized in that: The shading baffle (2) is a black shading baffle.

10. The simple and efficient optical path switching device for multi-channel optical testing according to claim 1, characterized in that: The Y-type optical fiber (7) is a multi-core optical fiber or a single-core fused optical fiber.

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