An optical fiber end face cleanliness detector

Abstract

The utility model discloses a kind of optical fiber end face cleanliness detection instruments, belong to optical fiber end face detection technical field, including the shell for wrapping element, for connecting handheld end face magnifying glass connection part, for checking optical fiber end face detection part and for providing energy supply for detection part energy supply part, the utility model is combined using by multiple components, can accurately capture the fine dirt, scratch and the like of optical fiber end face, whole detection procedure operation is convenient, effectively improve the efficiency and accuracy of optical fiber end face detection, relative to traditional handheld magnifying glass, without naked eye viewing dirty condition, convenient for later maintenance and lower cost;By being equipped with rubber ring, utilize the elasticity and friction force characteristics of rubber material itself, on the premise that handheld end face magnifying glass surface is not damaged, stable and reliable connection effect is realized, operation is convenient and will not cause additional wear and tear to equipment, give consideration to fixed strength and use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber end-face inspection technology, and more specifically, to an optical fiber end-face cleanliness detector. Background Technology

[0002] Fiber optic end-face inspection is a core technology to ensure the quality and reliability of fiber optic communication. It is mainly used to identify end-face contamination, geometric defects, and abnormal optical parameters.

[0003] There are two common types of fiber optic end-face inspection instruments on the market. One type is an integrated end-face magnifier and display, such as the MLPT-602. The other type is a handheld end-face magnifier, such as the GXFDJ fiber optic end-face inspection instrument. The handheld end-face magnifier has the advantage of low cost and is widely used, but it is not suitable for batch fiber optic end-face inspection, resulting in low efficiency of fiber optic end-face inspection. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide an optical fiber end face cleanliness tester, which aims to solve the problem that handheld end face magnifying glass type optical fiber end face inspection instruments are not suitable for batch optical fiber end face inspection, resulting in low efficiency of optical fiber end face inspection.

[0005] The present invention adopts the following technical solution: an optical fiber end face cleanliness detector, comprising a housing for enclosing components; A connecting part, located on one side of the housing, is used to connect a handheld end-face magnifying lens; The inspection unit, installed inside the housing on the side near the connector, is used to inspect the fiber end face; The power supply unit, located inside the housing on the side away from the detection unit, is used to provide energy to the detection unit. The detection unit includes a camera module fixed inside the housing, with the observation element of the camera module facing the handheld end-face magnifying glass.

[0006] As a preferred embodiment of this utility model, the housing includes a rear cover, and a front cover is fixed to one side of the rear cover by bolts. The rear cover and the front cover are combined to enclose the detection unit and the power supply unit.

[0007] As a preferred embodiment of this utility model, the connecting part includes a sleeve integrally formed on the side of the rear cover away from the front cover, the observation end of the handheld end-face magnifying glass is located inside the sleeve, and the end of the sleeve that fits over the handheld end-face magnifying glass is curved.

[0008] As a preferred embodiment of this utility model, the detection unit includes a camera module fixed to the inner wall of one side of the back cover. A through hole is provided on one side of the back cover, the through hole is located inside the sleeve, and the observation element of the camera module faces the through hole.

[0009] As a preferred embodiment of this utility model, the power supply unit includes a light source power supply main board fixed to the inner wall of one side of the front cover, and a light source power supply connector is welded to the side of the light source power supply main board facing the front cover.

[0010] As a preferred embodiment of this utility model, a brightness adjuster is welded to the side of the light source power supply motherboard near the front cover for adjusting the brightness of the camera module.

[0011] As a preferred embodiment of this utility model, a positioning bracket is integrally formed on one side of the front cover, and a positioning slot is provided on one side of the rear cover, with the positioning bracket engaging in the positioning slot.

[0012] As a preferred embodiment of this utility model, it also includes a fixing part, which is disposed at the connecting part and is used to reinforce the connection between the connecting part and the handheld end-face magnifying lens.

[0013] As a preferred embodiment of the present invention, the fixing part includes at least one mounting groove formed on the inner wall of the sleeve circumference, a rubber ring is bonded in the mounting groove, and the end face of the rubber ring extends beyond the mounting groove.

[0014] As a preferred embodiment of this utility model, the fixing part includes an elastic clamp fixed on the outer side of the sleeve circumference, and the shortest distance between the two sides of the elastic clamp is not greater than the width of the handheld end face magnifying glass.

[0015] Beneficial effects Compared with existing technologies, the advantages of this utility model are: 1. This utility model, through the combined use of multiple components, can accurately capture minute stains, scratches, and other conditions on the fiber optic end face. The entire inspection process is convenient to operate, effectively improving the efficiency and accuracy of fiber optic end face inspection. Compared with traditional handheld magnifying glasses, there is no need to observe the dirt with the naked eye, and subsequent maintenance is convenient and less costly.

[0016] 2. By providing a shell and enclosing the components with a small number of parts, this utility model not only simplifies the assembly process and reduces the complexity and cost of the production process, but also reduces the weight of the overall equipment while ensuring structural stability, making it more convenient and labor-saving for operators to use by hand.

[0017] 3. This utility model, by providing a connecting part, enables rapid and intuitive detection of the cleanliness of the fiber end face without the need for additional complex fixing devices, further improving the convenience and efficiency of the detection.

[0018] 4. This utility model, by having a detection unit, can transmit the observed optical fiber end face image to an external display device in real time. Operators can clearly view the magnified details on the screen. Combined with image analysis software, it can also accurately judge the location, size, and other information of pollutants, avoiding the subjective errors that may exist in traditional naked-eye observation.

[0019] 5. By incorporating a power supply unit, this utility model not only facilitates quick power connection for operators, ensuring continuous and stable operation of the equipment during testing, but also flexibly adapts to various power adapters according to power supply requirements in different scenarios, thereby enhancing the versatility of the equipment in different working environments such as laboratories and computer rooms.

[0020] 6. This utility model, by incorporating a brightness adjuster, ensures that the detailed features of the fiber end face are clearly presented, so as to accurately identify whether there are defects such as stains or scratches on the end face that affect the test results, thereby further improving the accuracy and reliability of fiber end face cleanliness detection.

[0021] 7. By providing a positioning bracket and a positioning slot, this utility model can effectively avoid the problem of misalignment of the connection holes caused by the offset of the front cover 2 and the rear cover 1, and reduce the adjustment time during installation.

[0022] 8. This utility model, by incorporating a rubber ring, utilizes the elasticity and frictional properties of the rubber material itself to achieve a stable and reliable connection without damaging the surface of the handheld magnifying glass. It is easy to operate and will not cause additional wear to the equipment, balancing both fixing strength and usage flexibility.

[0023] 9. This utility model, by providing an elastic clamp, can adapt to handheld end-face magnifying glasses of different diameters. It can also generate sufficient friction through the pressure between the elastic clamp 14 and the outer wall of the magnifying glass, effectively preventing slippage during use. Attached Figure Description

[0024] Figure 1 This is a perspective view of Embodiment 1 of the present utility model; Figure 2 This is an exploded view of Embodiment 1 of this utility model; Figure 3 This is an enlarged view of the front cover of Embodiment 1 of this utility model; Figure 4 This is an enlarged view of the back cover of Embodiment 1 of this utility model; Figure 5 This is an enlarged view of the rubber ring in Embodiment 2 of this utility model; Figure 6 This is an enlarged view of the elastic clamp of Embodiment 2 of this utility model.

[0025] Explanation of the labels in the diagram: 1. Back cover; 2. Front cover; 3. Sleeve; 4. Through hole; 5. Camera module; 6. Light source power supply motherboard; 7. Light source power supply connector; 8. Brightness adjuster; 9. Positioning slot; 10. Positioning bracket; 11. Curved surface; 12. Mounting slot; 13. Rubber ring; 14. Elastic clamp. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1: Please see Figure 1-4 A fiber optic end-face cleanliness tester includes a housing for enclosing components; A connecting part, located on one side of the housing, is used to connect a handheld end-face magnifying lens; The inspection unit, installed inside the housing on the side near the connector, is used to inspect the fiber end face; The power supply unit, located inside the housing on the side away from the detection unit, is used to provide energy to the detection unit. When inspecting the fiber end face, the connector is connected to the handheld end face magnifying glass, and then an external power adapter is connected to the power supply unit to provide power to the inspection unit. The inspection unit performs a cleanliness inspection on the fiber end face placed in the handheld end face magnifying glass, thereby completing the inspection of the fiber end face. The detector effectively protects its internal components through its housing, and the design of the connection part ensures stable docking with the handheld end-face magnifying glass, avoiding the impact on observation accuracy due to loose connection during the testing process; With the stable power support provided by the power supply department, the testing department is able to accurately detect minor stains, scratches, and other defects on the fiber optic end face. The entire testing process is convenient to operate, effectively improving the efficiency and accuracy of fiber optic end face testing. It can also be connected to an external computer via a USB interface (not shown in the figure) to transmit the detected fiber optic end-face image data to the computer for storage, analysis, and printing. The computer can be equipped with dedicated data analysis software to magnify, measure, and annotate the images, helping technicians to more deeply evaluate the quality of the fiber optic end-face, facilitating the generation of detailed inspection reports and the tracing of historical data. This further expands the functional application range of the instrument and meets the needs of fiber optic end-face inspection data management in different scenarios. Compared to traditional handheld magnifying glasses, there is no need to visually inspect for dirt, and maintenance is convenient and less costly.

[0030] The housing includes a rear cover 1, and a front cover 2 is fixed to one side of the rear cover 1 by bolts. The rear cover 1 and the front cover 2 together enclose the detection unit and the power supply unit. By encapsulating components with fewer parts, the assembly process is simplified, the complexity and cost of production are reduced, and the overall weight of the equipment is reduced while ensuring structural stability, making it easier and less strenuous for operators to use it by hand. In addition, the tight fit between the rear cover 1 and the front cover 2 creates a good sealing environment, which can effectively prevent external dust, moisture and other impurities from entering the interior, providing reliable protection for the stable operation of the detection and power supply departments and extending the service life of the instrument.

[0031] The connecting part includes a sleeve 3 integrally formed on the side of the rear cover 1 away from the front cover 2, the observation end of the handheld end-face magnifying glass is located inside the sleeve 3, and the end of the sleeve 3 that is fitted onto the handheld end-face magnifying glass is an arc surface 11. The arc surface 11 provides auxiliary guidance when connecting to the magnifying glass observation end, ensuring a smoother connection process and avoiding installation difficulties caused by misalignment. At the same time, the arc surface structure also provides a certain buffer protection for the magnifying glass observation end after connection, reducing the direct impact on precision components during external collisions. This further improves the safety and durability of the connection, taking into account both ease of operation and the protection requirements of core components, making the overall structure more reliable in practical applications. When it is necessary to test the cleanliness of the fiber end face, sleeve 3 is placed on the observation end of the handheld end face magnifying glass. The operator aligns the fiber end face with the test area, so that the test unit can directly observe the fiber end face. With the help of the optical magnification function of the magnifying glass, it is possible to clearly see whether there are contaminants such as oil stains, scratches, and particles on the end face. This enables a quick and intuitive test of the cleanliness of the fiber end face. The entire operation does not require additional complex fixing devices, which further improves the convenience and efficiency of the test.

[0032] The detection unit includes a camera module 5 fixed to the inner wall of one side of the back cover 1. A through hole 4 is provided on one side of the back cover 1. The through hole 4 is located inside the sleeve 3, and the observation element of the camera module 5 faces the through hole 4. When it is necessary to test the cleanliness of the fiber end face, the camera module 5 will observe the cleanliness of the fiber end face in the detection area of ​​the handheld end face magnifying glass through the through hole 4. The camera module 5 can transmit the observed fiber end face image to the external display device in real time. The operator can clearly view the magnified details on the screen. Combined with image analysis software, the location, size and other information of contaminants can be accurately judged, avoiding the subjective errors that may exist in traditional naked eye observation. Meanwhile, the high resolution of camera module 5 ensures that even tiny scratches or fine particles can be accurately captured, further improving the reliability of the detection results and meeting the technical requirements for high-precision fiber optic end-face inspection.

[0033] It should be noted that camera module 5 is existing technology and can use a camera with model number QQSJ-8808-USB, or it can be set according to actual needs.

[0034] The power supply unit includes a light source power supply main board 6 fixed on the inner wall of one side of the front cover 2. A light source power supply connector 7 is welded to the side of the light source power supply main board 6 facing the front cover 2. When it is necessary to perform cleanliness testing on the fiber end face, the external power adapter is connected to the light source power supply connector 7, so as to provide power to the light source power supply main board 6 and the camera module 5. This modular power supply design not only makes it easy for operators to quickly connect to the power supply and ensures that the equipment operates continuously and stably during the testing process, but also allows for flexible adaptation to various power adapters according to the power supply needs of different scenarios, improving the versatility of the equipment in different working environments such as laboratories and computer rooms. Meanwhile, the independent power supply lines for the light source power supply motherboard 6 and the camera module 5 effectively avoid electromagnetic interference that may occur during the power supply process, ensuring the clarity and stability of the images acquired by the camera module 5, and providing reliable hardware support for subsequent fiber optic end-face cleanliness analysis.

[0035] It should be noted that the light source power supply motherboard 6 can be made of PCB motherboard and can be customized according to requirements. The light source power supply connector 7 can be a universal DC female connector to connect to the power adapter, or it can be customized according to actual needs.

[0036] Among them, a brightness regulator 8 is welded on the side of the power supply motherboard 6 near the front cover 2, which is used to adjust the brightness of the camera module 5. When it is necessary to adjust the brightness of the camera module 5 during the cleanliness detection of the fiber end face, the brightness of the camera module 5 can be adjusted through the brightness regulator 8. Operators can flexibly rotate the knob or press the adjustment button on the brightness adjuster 8 according to the actual reflection of the fiber end face, the intensity of the ambient light, and the testing requirements. They can observe the image effect transmitted from the camera module 5 to the display device in real time and gradually adjust the brightness to the most suitable state to ensure that the detailed features of the fiber end face are clearly presented. This will enable accurate identification of whether there are stains, scratches, or other defects on the end face that affect the test results, and further improve the accuracy and reliability of fiber end face cleanliness testing.

[0037] It should be noted that the brightness adjuster 8 can use an adjustable resistor of model RF805-KQ6.5-VS as the adjuster. By adjusting the mechanical knob, the resistance value is changed, and the current is indirectly adjusted to achieve the brightness adjustment function.

[0038] Furthermore, a positioning bracket 10 is integrally formed on one side of the front cover 2, and a positioning slot 9 is provided on one side of the rear cover 1. During the installation of the front cover 2 and the rear cover 1, the positioning bracket 10 is inserted into the positioning slot 9, thereby aligning the connecting holes of the front cover 2 and the rear cover 1, which facilitates the installation of screws. This positioning method can effectively avoid the problem of misalignment of the connecting holes caused by the offset of the front cover 2 and the rear cover 1, and reduce the adjustment time during installation. The positioning bracket 10 and the positioning slot 9 have a high matching precision. After being inserted, they can form a preliminary fixed support, so that the operator does not need to hold the front cover 2 with his / her hand all the time and can focus more on the screw tightening operation. At the same time, the positioning bracket 10 adopts an integral molding design with the front cover 2, which not only ensures the structural strength, but also simplifies the production process, reduces assembly errors, and further improves the overall installation efficiency and the structural stability of the equipment after assembly.

[0039] The specific usage steps of this embodiment are as follows: First, place the handheld end-face magnifying glass onto the sleeve 3, and then connect the power adapter to the light source power supply connector 7 to complete the power supply of the camera module 5 and the light source power supply motherboard 6. Connect the data cable of camera module 5 to the computer, manually adjust the focal length of the magnifying glass and the brightness of the light source to ensure that the lighting in the observation area is uniform and free from glare interference. At this time, the optical fiber can be inserted into the detection area of ​​the manually adjusted magnifying glass to detect the cleanliness of the optical fiber end face.

[0040] Example 2: Please see Figure 5-6 A fiber optic end-face cleanliness tester also includes a fixing part, which is located at the connection part and is used to reinforce the connection between the connection part and the handheld end-face magnifying glass, so as to prevent the tester from falling off the handheld end-face magnifying glass during the test and improve the stability of the tester during use.

[0041] The fixing part can be a rubber ring 13 or an elastic clip 14; When the fixing part is a rubber ring 13, at least one mounting groove 12 is provided on the inner circumference of the sleeve 3. The rubber ring 13 is bonded to the mounting groove 12, and the end face of the rubber ring 13 extends beyond the mounting groove 12. When the handheld end face magnifying glass is inserted into the sleeve 3, the rubber ring 13 is squeezed and deformed, thereby increasing the friction between the inner wall of the sleeve 3 and the outer wall of the handheld end face magnifying glass, forming a tight wrapping fixation. By utilizing the elasticity and friction properties of the rubber material itself, a stable and reliable connection is achieved without damaging the surface of the handheld end-face magnifying glass. When the operator needs to adjust the position of the detector or remove it, a certain amount of pulling force can be applied to easily separate it. The operation is convenient and will not cause additional wear to the equipment, thus balancing the fixing strength and the flexibility of use.

[0042] When the fixing part is the elastic clamp 14, the elastic clamp 14 is fixed on the outer side of the circumference of the sleeve 3. The shortest distance between the two sides of the elastic clamp 14 is not greater than the width of the handheld end face magnifying glass. When the handheld end face magnifying glass is inserted into the sleeve 3, the handheld end face magnifying glass will squeeze the inclined surface of the elastic clamp 14, thereby deforming the elastic clamp 14. As the elastic clamp 14 deforms, the clamping arms on both sides will gradually open outward. After the handheld end face magnifying glass is fully inserted, the elastic clamp 14 will tighten inward by its own elastic restoring force and fit tightly against the outer wall of the handheld end face magnifying glass, forming a clamping and fixing from the outside to the inside. This clamping method can not only adapt to handheld end-face magnifying glasses of different diameters, but also generate sufficient friction through the pressure between the elastic clamp 14 and the outer wall of the magnifying glass, effectively preventing slippage during use. Meanwhile, the material of the elastic clamp 14 has good toughness and wear resistance, such as elastic steel. Even after multiple insertion and removal operations, its elastic performance is not easily degraded, ensuring the stability of long-term use. When disassembly is required, the operator only needs to pinch the two sides of the elastic clamp 14 and apply outward pulling force to open the clamping arm and easily remove the handheld end face magnifying glass from the sleeve 3. The whole process does not require any additional tools and is simple and efficient.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An optical fiber endface cleanliness detector, characterized by: Includes a housing for enclosing the components; A connecting part, located on one side of the housing, is used to connect a handheld end-face magnifying lens; The inspection section, installed inside the housing on the side near the connector, is used to inspect the fiber end face; The power supply unit, located inside the housing on the side away from the detection unit, is used to provide energy to the detection unit. The detection unit includes a camera module (5) fixed inside the housing, and the observation element of the camera module (5) faces the handheld end face magnifying glass.

2. The fiber end face cleanliness gauge of claim 1, wherein: The housing includes a rear cover (1), and a front cover (2) is fixed to one side of the rear cover (1) by bolts. The rear cover (1) and the front cover (2) together enclose the detection unit and the power supply unit.

3. The fiber end face cleanliness gauge of claim 2, wherein: The connecting part includes a sleeve (3) integrally formed on the side of the rear cover (1) away from the front cover (2), the observation end of the handheld end-face magnifying glass is located inside the sleeve (3), and the end of the sleeve (3) that is fitted onto the handheld end-face magnifying glass is an arc surface (11).

4. The fiber optic end-face cleanliness detector according to claim 3, characterized in that: The back cover (1) has a through hole (4) on one side, the through hole (4) is located inside the sleeve (3), and the observation element of the camera module (5) faces the through hole (4).

5. An optical fiber endface cleanliness gauge according to claim 4, wherein: The power supply unit includes a light source power supply main board (6) fixed to the inner wall of one side of the front cover (2), and a light source power supply connector (7) is welded to the side of the light source power supply main board (6) facing the front cover (2).

6. An optical fiber endface cleanliness gauge according to claim 5, wherein: The light source power supply motherboard (6) has a brightness regulator (8) welded on the side near the front cover (2) for adjusting the brightness of the camera module (5).

7. The fiber end face cleanliness gauge of claim 2 wherein: The front cover (2) has a positioning bracket (10) integrally formed on one side, and the rear cover (1) has a positioning slot (9) on one side, and the positioning bracket (10) is inserted into the positioning slot (9).

8. The fiber end-face cleanliness gauge of claim 3, wherein: It also includes a fixing part, which is located at the connecting part and is used to reinforce the connection between the connecting part and the handheld end-face magnifying lens.

9. The fiber optic end-face cleanliness detector according to claim 8, characterized in that: The fixing part includes at least one mounting groove (12) formed on the inner circumference of the sleeve (3), a rubber ring (13) is bonded in the mounting groove (12), and the end face of the rubber ring (13) extends beyond the mounting groove (12).

10. The fiber optic end-face cleanliness detector according to claim 8, characterized in that: The fixing part includes an elastic clamp (14) fixed on the outer side of the circumference of the sleeve (3), and the shortest distance between the two sides of the elastic clamp (14) is not greater than the width of the handheld end face magnifying glass.

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