Multi-channel high-precision electric control optical fiber attenuator

Abstract

The utility model discloses a multi-channel high-precision electric control optical fiber attenuator, which comprises a shell, the bottom of the shell is provided with supporting frames which are evenly distributed, the middle of each supporting frame is rotationally connected with a rotating disc, attenuation pieces with different attenuation amounts are arranged in a round hole in the edge of the front side face of each rotating disc, and optical fiber collimators are arranged at installation holes in the front side face and the rear side face of each supporting frame and longitudinally correspond to the lowest attenuation piece. The front ends of the supporting frames are provided with connecting assemblies, the upper end of the interior of the shell is provided with an electric control assembly, and the front ends of the rotating discs are matched with the electric control assembly through the connecting assemblies. According to the multi-channel high-precision electric control optical fiber attenuator, attenuation pieces of different numerical values can be selected through the electric control assembly, and meanwhile detection display can be conducted; the accuracy of attenuation values and convenience in use are ensured, multiple groups of channels can be adjusted through a single electric control assembly, and the production cost of the optical fiber attenuator is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber attenuators, in particular to a multi-channel high-precision electrically controlled optical fiber attenuator. Background Art

[0002] The main function of the fiber optic attenuator is to adjust the intensity of the optical signal. It reduces the intensity of the optical signal by introducing a certain amount of loss during the signal transmission process to achieve an appropriate signal power level, thereby ensuring the reliability and stability of signal transmission. There are many types of fiber optic attenuators. Among them, the commonly used attenuator uses the light absorption characteristics of the material to make sheets or strips of neutral dark glass. When placed on the light path, it can attenuate the light intensity. Then, multiple pieces of sheet-like absorption glass can be converted into a graded adjustable attenuator through a wheel. This type of adjustable attenuator is generally manually adjusted and cannot detect the rotation position, which may result in inaccurate adjustment. There are also types that can be electrically adjusted, but the electronic control component can generally only control one channel. When there are more channels, multiple sets of electronic control components are required for control, which results in higher production costs. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a multi-channel high-precision electrically controlled optical fiber attenuator. Attenuation plates with different values ​​are provided on the rotating disk, and attenuation plates with different values ​​can be selected through the electrically controlled components. At the same time, detection and display can be performed, thereby ensuring the accuracy of the attenuation value and convenience in use. Multiple groups of channels can be adjusted through a single electrically controlled component, thereby reducing the production cost of the optical fiber attenuator and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a multi-channel high-precision electrically controlled optical fiber attenuator, comprising a housing;

[0005] Housing: The bottom of the housing is provided with evenly distributed support frames, the middle part of which is rotatably connected to a rotating disk, the circular hole at the edge of the front side of the rotating disk is provided with attenuation plates with different attenuation amounts, the mounting holes on the front and rear sides of the support frame are provided with fiber optic collimators, the fiber optic collimators correspond longitudinally to the lowest attenuation plates, the front end of the support frame is provided with a connecting assembly, the upper end of the housing is provided with an electric control assembly, the front end of the rotating disk is coordinated with the electric control assembly through the connecting assembly, the rear end of the support frame is provided with an angle sensor, and the input shaft of the angle sensor is fixedly connected to the rear end of the rotating disk;

[0006] Among them: it also includes a controller and a display screen, the controller is arranged on the front side wall of the shell, the display screen is arranged at the rectangular hole on the upper surface of the shell, the output end of the angle sensor is electrically connected to the input end of the controller, the input end of the display screen is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to an external power supply. Attenuation plates with different values ​​are provided on the rotating disk, and attenuation plates with different values ​​can be selected through the electronic control component, thereby ensuring the accuracy of the attenuation value. At the same time, the value of the working attenuation plate can be determined according to the angle sensor, and then the display screen displays the attenuation value of each channel, which greatly improves the convenience of using the optical fiber attenuator. At the same time, multiple groups of channels can be adjusted through a single electronic control component, reducing the use of electronic control components and reducing the production cost of the optical fiber attenuator.

[0007] Furthermore, the connecting assembly includes a worm wheel and a worm, and the worm wheels are respectively arranged at the front end of the rotating disk, and the front end of the support frame is rotatably connected to the worm, and the worm is respectively engaged with the laterally adjacent worm wheels, which facilitates the driving of the rotating disk and can be self-locking.

[0008] Furthermore, the connecting assembly also includes a pin shaft and a connecting sleeve. The pin shaft is respectively arranged at the upper end of the outer arc surface of the worm, and the connecting sleeve is movably connected to the upper end of the worm. The connecting sleeve is respectively slidably connected to the vertically corresponding pin shaft to facilitate the driving of the worm.

[0009] Furthermore, the connecting assembly also includes a spring, which is movably connected to the upper end of the outer arc surface of the worm. The spring is located between the connecting sleeve and the retaining ring in the middle of the worm. The upper end of the worm is provided with a retaining plate, which is located inside the connecting sleeve. The spring provides an upward force to the connecting sleeve.

[0010] Furthermore, the electronic control component includes a sliding column, a movable seat, a motor, a flat head and a motor seat. The sliding column is symmetrically arranged at the upper end of the inner shell, and the movable seat is slidingly connected between the two sliding columns. The lower end of the movable seat is slidingly connected to the motor seat through a circular shaft. The motor is provided in the middle of the motor seat, and a flat head is provided on the output shaft of the motor. The upper end of the connecting sleeve is provided with a groove corresponding to the flat head. The input end of the motor is electrically connected to the output end of the controller to facilitate the drive of the connecting sleeve.

[0011] Furthermore, the electronic control component also includes an electric push rod, which is arranged at the front end of the movable seat. The telescopic end of the electric push rod is fixedly connected to the upper surface of the motor seat. The input end of the electric push rod is electrically connected to the output end of the controller to facilitate the control of the movement of the motor seat.

[0012] Furthermore, the electronic control component also includes a screw and a servo motor. The servo motor is arranged on the left side wall of the shell, the screw is threadedly connected to the rear end of the movable seat, the left end of the screw is fixedly connected to the output shaft of the servo motor, and the input end of the servo motor is electrically connected to the output end of the controller to facilitate the control of the movement of the movable seat.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the multi-channel high-precision electrically controlled optical fiber attenuator has the following advantages:

[0014] 1. The rotating disk drives the attenuation sheet to rotate, and the angle sensor detects the rotation angle of the rotating disk. The angle sensor converts the angle information into an electrical signal and transmits it to the controller. During installation, the attenuation value of the attenuation sheet corresponds to the angle of the rotating disk and is recorded inside the controller. The controller can determine the position of the attenuation sheet and the attenuation value of the working attenuation sheet based on the detection value of the angle sensor, and then different attenuation sheets can be selected to achieve different attenuation values. At the same time, the controller sends the attenuation information to the display screen for display. Attenuation sheets of different values ​​are provided on the rotating disk, and attenuation sheets of different values ​​can be selected through the electronic control component, ensuring the accuracy of the attenuation value. At the same time, the value of the working attenuation sheet can be determined according to the angle sensor, and then the display screen displays the attenuation value of each channel, greatly improving the convenience of using the fiber optic attenuator.

[0015] 2. Control controller. The controller controls the operation of the servo motor. The servo motor drives the lead screw to rotate, and the lead screw drives the moving seat to slide along the sliding column. The moving seat drives the motor, flat head and motor seat to move synchronously. The servo motor drives the moving seat to move a specified distance and stop. The flat head corresponds to the vertical corresponding connecting sleeve, and then the telescopic end of the electric push rod extends to drive the motor seat and the motor and flat head to move downward. When the groove at the upper end of the connecting sleeve does not correspond to the flat head, the flat head moves down and presses the connecting sleeve. The connecting sleeve compresses the spring, and then the motor runs. The output shaft of the motor drives the flat head to rotate, and then the flat head rotates and corresponds to the groove at the upper end of the connecting sleeve. Then the spring pushes the connecting sleeve up and movably connects with the flat head. The flat head will drive the worm to rotate through the connecting sleeve and the pin shaft. The worm drives the rotating disk to select through the worm gear. During use, multiple groups of channels can be adjusted through a single electronic control component, which reduces the use of electronic control components and reduces the production cost of the optical fiber attenuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the electric control assembly of the present invention;

[0018] Figure 3 This is an enlarged structural diagram of point A of the present utility model.

[0019] In the figure: 1 housing, 2 controller, 3 display screen, 4 support frame, 5 rotating disk, 6 attenuation plate, 7 fiber collimator, 8 connecting component, 81 worm gear, 82 worm, 83 pin shaft, 84 connecting sleeve, 85 spring, 9 electronic control component, 91 slide column, 92 moving seat, 93 motor, 94 flat head, 95 electric push rod, 96 lead screw, 97 servo motor, 98 motor seat, 10 angle sensor. DETAILED DESCRIPTION

[0020] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-3 ,This embodiment provides a technical solution: a multi-channel high-precision electrically controlled optical fiber attenuator, comprising a housing 1;

[0022] Shell 1: The bottom is provided with evenly distributed support frames 4, and the optical fiber connector is inserted into the jack at the lower end of the shell 1. The middle part of the support frame 4 is rotatably connected to a rotating disk 5. The circular hole at the edge of the front side of the rotating disk 5 is provided with attenuation plates 6 with different attenuation amounts. The rotating disk 5 drives the attenuation plates 6 to rotate. The mounting holes on the front and back sides of the support frame 4 are provided with optical fiber collimators 7. The optical fiber collimators 7 correspond to the attenuation plates 6 at the bottom longitudinally. The optical fiber passes through the optical fiber collimators 7 and corresponds to the attenuation plates 6, and then the front and rear optical fibers transmit optical signals through the attenuation plates 6 between the two. The attenuation plates 6 use the light absorption characteristics of the material to make a sheet of neutral dark glass. When placed on the light path, the light intensity can be attenuated. The front end of the support frame 4 is provided with a connecting component 8. Inside the shell 1 The upper end of the part is provided with an electric control component 9, the front end of the rotating disk 5 is arranged in conjunction with the electric control component 9 through the connecting component 8, the rear end of the support frame 4 is provided with an angle sensor 10, the input shaft of the angle sensor 10 is fixedly connected to the rear end of the rotating disk 5, the connecting component 8 includes a worm gear 81 and a worm 82, the worm gear 81 is respectively arranged at the front end of the rotating disk 5, the front end of the support frame 4 is rotatably connected with the worm 82, the worm 82 is respectively meshed with the laterally adjacent worm gear 81, and the worm 82 drives the rotating disk 5 to select through the worm gear 81, the connecting component 8 also includes a pin shaft 83 and a connecting sleeve 84, the pin shaft 83 is respectively arranged at the upper end of the outer arc surface of the worm gear 82, the connecting sleeve 84 is respectively movably sleeved on the upper end of the worm gear 82, and the connecting sleeve 84 is respectively connected to the vertically corresponding pin shaft 83 The sliding connection, the connecting sleeve 84 drives the worm 82 to rotate through the pin shaft 83, and the connecting component 8 also includes a spring 85, which is movably sleeved on the upper end of the outer arc surface of the worm 82, and the spring 85 is located between the connecting sleeve 84 and the retaining ring in the middle of the worm 82. The upper end of the worm 82 is provided with a baffle, which is respectively located inside the connecting sleeve 84. The baffle prevents the connecting sleeve 84 from falling off. The electric control component 9 includes a slide post 91, a movable seat 92, a motor 93, a flat head 94 and a motor seat 98. The slide post 91 is symmetrically arranged at the upper end of the interior of the housing 1. The movable seat 92 is slidably connected between the two slide posts 91, and the lower end of the movable seat 92 is slidably connected to the motor seat 98 through a circular shaft. The middle of the motor seat 98 is provided with a motor 93, and the output shaft of the motor 93 is provided with a flat head 9 4. The upper end of the connecting sleeve 84 is provided with a groove corresponding to the flat head 94. The input end of the motor 93 is electrically connected to the output end of the controller 2. After the groove at the upper end of the connecting sleeve 84 corresponds to the flat head 94, the spring 85 pushes the connecting sleeve 84 to move up and movably plug into the flat head 94. The flat head 94 drives the connecting sleeve 84 to rotate. The electric control component 9 also includes an electric push rod 95. The electric push rod 95 is arranged at the front end of the movable seat 92. The telescopic end of the electric push rod 95 is fixedly connected to the upper surface of the motor seat 98. The input end of the electric push rod 95 is electrically connected to the output end of the controller 2. The telescopic end of the electric push rod 95 extends to drive the motor seat 98, the motor 93 and the flat head 94 to move downward. When the groove at the upper end of the connecting sleeve 84 does not correspond to the flat head 94, the flat head 94 moves downward and presses the connecting sleeve 84.The electronic control assembly 9 also includes a screw rod 96 and a servo motor 97. The servo motor 97 is arranged on the left side wall of the housing 1. The screw rod 96 is threadedly connected to the rear end of the movable base 92. The left end of the screw rod 96 is fixedly connected to the output shaft of the servo motor 97. The input end of the servo motor 97 is electrically connected to the output end of the controller 2. The servo motor 97 drives the screw rod 96 to rotate, and the screw rod 96 drives the movable base 92 to slide along the slide column 91. The movable base 92 drives the motor 93, the flat head 94 and the motor base 98 to move synchronously. The servo motor 97 drives the movable base 92 to move a specified distance and stop. The flat head 94 corresponds to the vertically corresponding connecting sleeve 84.

[0023] Among them: it also includes a controller 2 and a display screen 3, the controller 2 is arranged on the front side wall of the shell 1, the display screen 3 is arranged at the rectangular hole on the upper surface of the shell 1, the output end of the angle sensor 10 is electrically connected to the input end of the controller 2, the input end of the display screen 3 is electrically connected to the output end of the controller 2, the input end of the controller 2 is electrically connected to an external power supply, the angle sensor 10 detects the rotation angle of the rotating disk 5, and the angle sensor 10 converts the angle information into an electrical signal and transmits it to the controller 2. When installed, the attenuation value of the attenuation plate 6 corresponds to the angle of the rotating disk 5 and is recorded inside the controller 2. The controller 2 can determine the position of the attenuation plate 6 and the attenuation value of the working attenuation plate 6 according to the detection value of the angle sensor 10, and then different attenuation plates 6 can be selected to achieve attenuation of different values. At the same time, the controller 2 sends the attenuation information to the display screen 3 for display, thereby facilitating the display of attenuation values ​​of different channels.

[0024] The working principle of the multi-channel high-precision electric-controlled optical fiber attenuator provided by the utility model is as follows: when in use, the optical fiber connector is inserted into the jack at the lower end of the housing 1, the optical fiber passes through the optical fiber collimator 7 and corresponds to the attenuation plate 6, and then the front and rear optical fibers transmit the optical signal through the attenuation plate 6 between them. The attenuation plate 6 uses the light absorption characteristics of the material to make a sheet of neutral dark glass. When placed on the light path, it can attenuate the light intensity. The attenuation plates 6 with different attenuation values ​​can be set on the same rotating disk 5 according to needs. When adjusting, the controller 2 is regulated, and the controller 2 controls the servo motor 97 to work. The servo The motor 97 drives the screw rod 96 to rotate, and the screw rod 96 drives the moving seat 92 to slide along the sliding column 91. The moving seat 92 drives the motor 93, the flat head 94 and the motor seat 98 to move synchronously. The servo motor 97 drives the moving seat 92 to move a specified distance and stop. The flat head 94 corresponds to the vertically corresponding connecting sleeve 84. Then the telescopic end of the electric push rod 95 extends to drive the motor seat 98, the motor 93 and the flat head 94 to move downward. When the groove at the upper end of the connecting sleeve 84 does not correspond to the flat head 94, the flat head 94 moves downward and presses the connecting sleeve 84. The connecting sleeve 84 compresses the spring 85. Then the motor 93 starts to operate, and the electric The output shaft of the machine 93 drives the flat head 94 to rotate, and then the flat head 94 will correspond to the groove on the upper end of the connecting sleeve 84 after rotation, and then the spring 85 pushes the connecting sleeve 84 to move up and movably plug into the flat head 94, and the flat head 94 will drive the worm 82 to rotate through the connecting sleeve 84 and the pin shaft 83, and the worm 82 drives the rotating disk 5 to select through the worm gear 81, and the rotating disk 5 drives the attenuation piece 6 to rotate. At the same time, the angle sensor 10 detects the rotation angle of the rotating disk 5, and the angle sensor 10 converts the angle information into an electrical signal and transmits it to the controller 2. At the same time, the attenuation value of the attenuation piece 6 is connected to the rotation angle during installation. The angle of the disk 5 corresponds and is recorded inside the controller 2. The controller 2 can determine the position of the attenuation plate 6 and the attenuation value of the working attenuation plate 6 according to the detection value of the angle sensor 10, and then different attenuation plates 6 can be selected to achieve attenuation of different values. At the same time, the controller 2 sends the attenuation information to the display screen 3 for display, thereby facilitating the display of attenuation values ​​of different channels. After the adjustment is completed, the telescopic end of the electric push rod 95 contracts, the flat head 94 is separated from the connecting sleeve 84, and then the servo motor 97 can drive the moving seat 92 to move, and the attenuation values ​​of different channels can be adjusted.

[0025] It is worth noting that the controller 2, display screen 3, motor 93, electric push rod 95, servo motor 97 and angle sensor 10 disclosed in the above embodiments can be freely configured according to the actual application scenario. The core chip of the controller 2 can be a single-chip microcomputer of model STM32H743, the motor 93 can be a reduction motor of model 37GB555, the electric push rod 95 can be an electric push rod of model ANT-26, the servo motor 97 can be a servo motor of model MSMF5AZL1U2M, and the angle sensor 10 can be an angle sensor of model BL29-R. The controller 2 controls the display screen 3, motor 93, electric push rod 95, servo motor 97 and angle sensor 10 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Multi-channel high-precision electrically controlled optical fiber attenuator, characterized by: comprising a housing (1); The outer shell (1) has a support frame (4) evenly distributed at the bottom thereof, a rotating disk (5) is rotatably connected to the middle of the support frame (4), attenuation plates (6) with different attenuation amounts are arranged inside the circular hole at the edge of the front side of the rotating disk (5), optical fiber collimators (7) are arranged at the mounting holes on the front and rear sides of the support frame (4), the optical fiber collimators (7) correspond to the attenuation plates (6) at the bottom longitudinally, the front end of the support frame (4) is provided with a connecting assembly (8), the upper end of the inner part of the outer shell (1) is provided with an electric control assembly (9), the front end of the rotating disk (5) is arranged in coordination with the electric control assembly (9) through the connecting assembly (8), the rear end of the support frame (4) is provided with an angle sensor (10), and the input shaft of the angle sensor (10) is fixedly connected to the rear end of the rotating disk (5); The invention further comprises a controller (2) and a display screen (3), wherein the controller (2) is arranged on the front side wall of the housing (1), the display screen (3) is arranged at a rectangular hole on the upper surface of the housing (1), the output end of the angle sensor (10) is electrically connected to the input end of the controller (2), the input end of the display screen (3) is electrically connected to the output end of the controller (2), and the input end of the controller (2) is electrically connected to an external power supply.

2. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 1, characterized in that: The connecting assembly (8) comprises a worm wheel (81) and a worm (82), wherein the worm wheels (81) are respectively arranged at the front end of the rotating disk (5), and the front end of the supporting frame (4) is rotatably connected to the worm (82), and the worm (82) is respectively meshed and connected with the worm wheels (81) adjacent to each other in the transverse direction.

3. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 2, characterized in that: The connecting assembly (8) further comprises a pin shaft (83) and a connecting sleeve (84), wherein the pin shaft (83) is respectively arranged at the upper end of the outer arc surface of the worm (82), and the connecting sleeve (84) is respectively movably sleeved on the upper end of the worm (82), and the connecting sleeve (84) is respectively slidably connected to the vertically corresponding pin shaft (83).

4. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 3, characterized in that: The connecting assembly (8) further comprises a spring (85), wherein the spring (85) is movably sleeved on the upper end of the outer arc surface of the worm (82), the spring (85) is located between the connecting sleeve (84) and the retaining ring in the middle of the worm (82), and the upper end of the worm (82) is provided with a retaining plate, which is located inside the connecting sleeve (84).

5. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 3, characterized in that: The electric control component (9) comprises a slide column (91), a movable seat (92), a motor (93), a flat head (94) and a motor seat (98); the slide column (91) is symmetrically arranged at the upper end inside the housing (1); the movable seat (92) is slidably connected between the two slide columns (91); the lower end of the movable seat (92) is slidably connected to the motor seat (98) via a circular shaft; the motor (93) is arranged in the middle of the motor seat (98); the flat head (94) is arranged on the output shaft of the motor (93); the upper end of the connecting sleeve (84) is provided with a groove corresponding to the flat head (94); the input end of the motor (93) is electrically connected to the output end of the controller (2).

6. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 5, characterized in that: The electric control component (9) also includes an electric push rod (95), which is arranged at the front end of the movable seat (92), the telescopic end of the electric push rod (95) is fixedly connected to the upper surface of the motor seat (98), and the input end of the electric push rod (95) is electrically connected to the output end of the controller (2).

7. The multi-channel high-precision electrically controlled optical fiber attenuator according to claim 5, characterized in that: The electric control component (9) further comprises a screw rod (96) and a servo motor (97). The servo motor (97) is arranged on the left side wall of the housing (1). The screw rod (96) is threadedly connected to the rear end of the movable seat (92). The left end of the screw rod (96) is fixedly connected to the output shaft of the servo motor (97). The input end of the servo motor (97) is electrically connected to the output end of the controller (2).

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