Optical fiber multipath switching multiplexing device

Abstract

The utility model relates to an optical fiber multipath switching multiplexing device which comprises a bottom plate, the upper surface of the bottom plate is provided with a string plate mounting plate and an optical hole mounting plate, the string plate mounting plate is provided with two optical fiber string plates, and the optical hole mounting plate is provided with a central fixing disc. An even number of light holes are formed in the circumference of the center fixing disc, a distribution collimator is installed corresponding to each light hole, a rotating motor is installed on the upper surface of the bottom plate and located between the string plate installation plate and the light hole installation plate, a rotating disc is installed on an output shaft of the rotating motor, and two alignment collimators are symmetrically installed on the rotating disc. An optocoupler is arranged on the upper surface of the bottom plate and below the rotating disc, an optocoupler slice is installed on the outer edge of the rotating disc corresponding to the optocoupler, and an input optical fiber and an output optical fiber are connected between the optical fiber string plate and the alignment collimator. According to the utility model, signals of one input channel can be sequentially coupled to multiple different output channels, and a set of spectrograph and light source are shared, so that the utilization rate of the spectrograph and the light source is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to an optical fiber multi-channel switching multiplexing device. Background Art

[0002] At present, the demand for automation and intelligentization of industrial production is becoming more and more prominent, and the realization of online detection is an important part of it. With the continuous advancement of online near-infrared analysis technology, the trend of using online near-infrared spectrometers to monitor production links in the field of industrial analysis is becoming more and more obvious. The working conditions in industrial environments are generally complex and diverse. Creating a good working environment for core components such as spectrometers is necessary to ensure the actual detection accuracy. If conditions permit, the spectrometers that are susceptible to interference are kept away from the industrial site, and only the fiber optic probes are placed at the industrial site, it will greatly reduce the installation and protection requirements on site and expand the application scenarios of near-infrared instruments.

[0003] In industrial process control, we often encounter application scenarios where multiple detection probes are needed to perform measurements at multiple locations. The detection solution requires a spectrometer and a light source for each location, which is troublesome to install and has high instrument maintenance costs. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the prior art and provides an optical fiber multi-channel switching multiplexing device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] An optical fiber multi-channel switching multiplexing device comprises a bottom plate, a string plate mounting plate is provided on the left side of the upper surface of the bottom plate, and a light hole mounting plate is provided on the right side of the upper surface, two optical fiber string plates are installed on the string plate mounting plate, a central fixed plate is provided on the light hole mounting plate, a plurality of light holes are opened on the circumference of the central fixed plate, and a distributed collimator is installed corresponding to each light hole, and the number of distributed collimators is an even number, a rotating motor is installed between the string plate mounting plate and the light hole mounting plate on the upper surface of the bottom plate, the output shaft of the rotating motor is rotatably installed at the center of the central fixed plate through a bearing cover, and a A rotating disk, two alignment collimators are symmetrically installed on the rotating disk, the alignment collimator is arranged corresponding to one of the distributed collimators on the central fixed disk, an optical coupler is arranged on the upper surface of the bottom plate below the rotating disk, an optical coupler slice is installed on the outer edge of the rotating disk corresponding to the optical coupler, two limit baffles are symmetrically installed on the outer edge of the rotating disk, one of the limit baffles is arranged close to the optical coupler slice, and the limit baffle is longer than the optical coupler slice, an input optical fiber is connected between one of the optical fiber string plates and an alignment collimator, and an output optical fiber is connected between the other optical fiber string plate and the other alignment collimator.

[0007] An optical coupling pad is arranged on the upper surface of the bottom plate below the optical coupling, and a limit stopper is blocked outside the side wall of the optical coupling pad.

[0008] The optical coupler is a side-mounted U-shaped structure with the opening of the U-shaped structure facing the rotating disk. Fixed ear plates are symmetrically arranged on both sides of the optical coupler, and the fixed ear plates are fixed to the top of the optical coupler pad by bolts.

[0009] The optical coupling slice is an L-shaped structure, and the transverse plate of the optical coupling slice is inserted into the U-shaped groove of the optical coupling.

[0010] A driver is installed on the upper surface of the bottom plate, and the driver is electrically connected to the rotating motor.

[0011] The beneficial effects of the utility model are as follows: the utility model can realize coupling the signal of one input channel to multiple different output channels in sequence, and flexibly and quickly realize the connection of optical signals between different channels; share a set of spectrometers and light sources, improve the utilization rate of the spectrometers and light sources, and greatly reduce the production and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of one direction of the utility model;

[0013] Figure 2 It is a structural schematic diagram of another direction of the utility model;

[0014] Figure 3 A connection diagram for use with the utility model;

[0015] In the figure: 1-base plate; 2-series plate mounting plate; 3-light hole mounting plate; 4-fiber string plate; 5-center fixed disk; 6-distributed collimator; 7-rotating motor; 8-rotating disk; 9-alignment collimator; 10-optical coupler; 11-optical coupler slice; 12-limiting baffle; 13-input optical fiber; 14-output optical fiber; 15-optical coupler pad; 16-fixed ear plate; 17-driver; 18-shaft sleeve; 19-motor fixing bracket; 20-ground pin; 21-light source; 22-input optical fiber; 23-spectrometer; 24-output optical fiber; 25-connecting optical fiber; 26-measurement module;

[0016] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0018] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] An optical fiber multiplexing device, such as Figure 1 , Figure 2 As shown, it includes a base plate 1, a string plate mounting plate 2, a light hole mounting plate 3, an optical fiber string plate 4, a central fixed plate 5, a distributed collimator 6, a rotating motor 7, a rotating plate 8, an alignment collimator 9, an optical coupler 10, an optical coupler slice 11, a limit baffle 12, an input optical fiber 13, an output optical fiber 14, an optical coupler pad 15, a fixed ear plate 16, a driver 17, a shaft sleeve 18, a motor fixing bracket 19 and a ground pin 20.

[0022] A string plate mounting plate 2 is provided on the left side of the upper surface of the bottom plate 1, and a light hole mounting plate 3 is provided on the right side of the upper surface. Two optical fiber string plates 4 are installed on the string plate mounting plate 2. A central fixed plate 5 is provided on the light hole mounting plate 3. A plurality of light holes are opened on the circumference of the central fixed plate 5, and a distributed collimator 6 is installed corresponding to each light hole. The number of distributed collimators 6 is an even number. A rotating motor 7 is installed between the string plate mounting plate 2 and the light hole mounting plate 3 on the upper surface of the bottom plate 1. The output shaft of the rotating motor 7 is rotatably installed at the center of the central fixed plate 5 through a bearing cover, and a rotating disk 8 is installed on the output shaft. Two pairs of optical fibers are symmetrically installed on the rotating disk 8. A positioning collimator 9 is provided, and the alignment collimator 9 is arranged corresponding to one of the distributed collimators 6 on the central fixed disk 5. An optical coupler 10 is provided on the upper surface of the base plate 1 below the rotating disk 8. An optical coupler slice 11 is installed on the outer edge of the rotating disk 8 corresponding to the optical coupler 10. Two limit baffles 12 are symmetrically installed on the outer edge of the rotating disk 8, one of the limit baffles 12 is arranged close to the optical coupler slice 11, and the limit baffle 12 is longer than the optical coupler slice 11. An input optical fiber 13 is connected between one of the optical fiber string plates 4 and an alignment collimator 9, and an output optical fiber 14 is connected between the other optical fiber string plate 4 and the other alignment collimator 9.

[0023] The four corners of the bottom of the base plate 1 are provided with feet 20 .

[0024] A shaft sleeve 18 is integrally provided on the output shaft of the rotary motor 7 , and the rotary disc 8 is fixed to the end surface of the shaft sleeve 18 by bolts.

[0025] A motor fixing frame 19 is provided between the bottom of the rotating motor 7 and the upper surface of the base plate 1 .

[0026] A driver 17 is mounted on the upper surface of the bottom plate 1, and the driver 17 is electrically connected to the rotating motor 7. The driver 17 sends a driving signal to the rotating motor 7 to control the rotating disk 8 to rotate to a corresponding working position.

[0027] An optical coupling pad 15 is provided on the upper surface of the bottom plate 1 below the optical coupling 10, and a limit baffle 12 blocks the side wall of the optical coupling pad 15. The limit baffle 12 can prevent the connected input optical fiber 13 and output optical fiber 14 from being damaged due to excessive rotation of the rotating motor 7 due to abnormal operation.

[0028] The optical coupler 10 is a sideways U-shaped structure with the opening of the U-shaped structure facing the rotating disk 8 . Fixed ear plates 16 are symmetrically provided on both sides of the optical coupler 10 . The fixed ear plates 16 are fixed to the top of the optical coupler pad 15 by bolts.

[0029] The optical coupling slice 11 is an L-shaped structure, and the transverse plate of the optical coupling slice 11 is inserted into the U-shaped groove of the optical coupling 10. The optical coupling slice 11 cooperates with the optical coupling 10 to determine the rotation zero position.

[0030] The rotating disk 8 is provided with mounting grooves corresponding to the optical coupling slice 11 and the limit baffle 12 , and the ends of the optical coupling slice 11 and the limit baffle 12 are mounted in the corresponding mounting grooves by bolts.

[0031] The alignment collimator 9 is used to achieve coupling with the external distributed collimators 6 on different output channels for signal transmission.

[0032] An even number of light holes are set on the central fixed plate 5, and a distributed collimator 6 is correspondingly configured at each light hole. Every two symmetrical distributed collimators 6 form a group of channels, which are respectively connected to the inlet and outlet ends of the measuring module 26 through the connecting optical fiber 25. The light emitted by the light source 21 is collected, and after a part of the light is absorbed by the measuring module 26, it is finally transmitted to the spectrometer 23. The optical fiber string board 4 fixed on the string board mounting plate 2 connects the import optical fiber 22 with the input optical fiber 13 between the light source 21 and the multiplexing device, and the optical fiber string board 4 fixed on the string board mounting plate 2 connects the export optical fiber 24 with the output optical fiber 14 between the spectrometer 23 and the multiplexing device, so as to realize signal communication, such as Figure 3 shown.

[0033] The utility model provides an optical fiber multi-channel switching multiplexing device, which can realize the coupling of the signal of one input channel to multiple different output channels in sequence, and flexibly and quickly realize the connection of optical signals between different channels; by sharing a set of spectrometers 23 and light sources 21, the measurement needs of multiple detection points can be quickly realized, while ensuring the measurement requirements, the utilization rate of the spectrometer 23 and the light source 21 is effectively improved, the production and use costs are greatly reduced, and it has a wide range of promotion and application value; the structural design is compact and small, with a reliable limit protection design, easy assembly and debugging, and improved The stability of the collected signal.

[0034] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An optical fiber multiplexing device, characterized in that: The optical fiber ... The invention relates to a positioning collimator (9), the alignment collimator (9) is arranged corresponding to one of the distributed collimators (6) on the central fixed disk (5), an optical coupler (10) is arranged on the upper surface of the bottom plate (1) below the rotating disk (8), an optical coupler slice (11) is arranged on the outer edge of the rotating disk (8) corresponding to the optical coupler (10), two limit baffles (12) are symmetrically arranged on the outer edge of the rotating disk (8), one of the limit baffles (12) is arranged close to the optical coupler slice (11), and the limit baffle (12) is longer than the optical coupler slice (11), an input optical fiber (13) is connected between one optical fiber string plate (4) and one alignment collimator (9), and an output optical fiber (14) is connected between another optical fiber string plate (4) and another alignment collimator (9).

2. The optical fiber multiplexing device according to claim 1, characterized in that: An optical coupling pad (15) is provided on the upper surface of the bottom plate (1) below the optical coupling (10), and the limiting baffle (12) is blocked outside the side wall of the optical coupling pad (15).

3. The optical fiber multiplexing device according to claim 2, characterized in that: The optical coupler (10) is a side-mounted U-shaped structure with an opening facing the rotating disk (8). Fixed ear plates (16) are symmetrically provided on both sides of the optical coupler (10), and the fixed ear plates (16) are fixed to the top of the optical coupler pad (15) by bolts.

4. The optical fiber multiplexing device according to claim 3, characterized in that: The optical coupling slice (11) is an L-shaped structure, and the transverse plate of the optical coupling slice (11) is inserted into the U-shaped groove of the optical coupling (10).

5. The optical fiber multiplexing device according to claim 4, characterized in that: The rotating disk (8) is provided with mounting grooves corresponding to the optical coupling slice (11) and the position-limiting baffle (12); the ends of the optical coupling slice (11) and the position-limiting baffle (12) are mounted in the corresponding mounting grooves by means of bolts.

6. The optical fiber multiplexing device according to claim 5, characterized in that: A driver (17) is installed on the upper surface of the base plate (1), and the driver (17) is electrically connected to the rotating motor (7).

7. The optical fiber multiplexing device according to claim 6, characterized in that: A shaft sleeve (18) is integrally provided on the output shaft of the rotating motor (7), and the rotating disk (8) is fixed on the end surface of the shaft sleeve (18) by means of bolts.

8. The optical fiber multiplexing device according to claim 7, characterized in that: A motor fixing frame (19) is provided between the bottom of the rotating motor (7) and the upper surface of the bottom plate (1).

9. The optical fiber multiplexing device according to claim 8, characterized in that: The four corners of the bottom of the base plate (1) are provided with footings (20).

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