Optical fiber detection device

Abstract

The invention relates to the technical field of detection devices, in particular to an optical fiber detection device which comprises a case, a mounting plate is connected in the case through a cushion block, a power supply and a detector are arranged on the mounting plate, an optical fiber disc is further arranged on the mounting plate, and a light source is arranged on one side of the optical fiber disc; a supporting plate is connected to the mounting plate through a nut column, an industrial personal computer is arranged on the supporting plate, and a data acquisition card and a photoelectric switch are further arranged on the supporting plate; a temperature control assembly is arranged in the case, required light is provided for optical fibers of the optical fiber disc through the light source, detection is carried out through the detector, the temperature in the case is controlled through the temperature control assembly, and the situation that the measurement precision and the service life of the detection device are affected due to the fact that the temperature in the case is too high is prevented. The exhaust fan is arranged to be matched with the exhaust port to exhaust hot air in the case, and the scattering fan is matched with the air inlet to suck external air, so that the temperature in the case is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to an optical fiber detection device. Background Art

[0002] Fiber optic detection device is an important technical equipment used to monitor and evaluate the performance and security of fiber optic communication systems. Its main functions include detecting the quality, transmission distance, loss, breakage, etc. of optical signals. Modern fiber optic detection devices usually use the principle of optical time domain reflectometry (OTDR) to determine the status and position of the optical fiber by emitting pulsed light signals and analyzing the reflected signals. This technology can monitor the health of the optical fiber in real time without interrupting service, helping operation and maintenance personnel to promptly detect and locate faults.

[0003] Existing fiber optic detection devices generally measure the intensity of anti-Stokes light and Stokes light and perform calculations to obtain temperature information at the scattering point, thereby realizing distributed temperature measurement of the temperature field of the entire optical fiber. For example, Chinese patent announcement No. CN217179792U discloses "a fiber optic detection device", which can combine the optical path parts of the existing distributed fiber optic temperature measurement system and the distributed fiber optic anti-external damage system into one by utilizing an optical modulation amplification system, a coupler, a fiber optic temperature detection system and a fiber optic vibration detection system, so that the fiber optic detection device of the present invention can monitor temperature information and vibration information at the same time, thereby improving the comprehensiveness of the fiber optic detection device for monitoring power cables and greatly reducing the system hardware cost;

[0004] However, in actual use, as the fiber optic detection device is used for a long time, the internal heat gradually accumulates, which affects the service life of the electronic components and causes an increase in the error of the measurement results of the detection device, affecting the accuracy. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that as the optical fiber detection device is used for a long time, internal heat gradually accumulates, affecting the service life of electronic components and affecting the accuracy, and thus a fiber optic detection device is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A fiber optic detection device is designed, comprising a chassis, a mounting plate connected to the chassis via a spacer, a power supply and a detector are arranged on the mounting plate, a fiber optic disc is also arranged on the mounting plate, and a light source is arranged on one side of the fiber optic disc;

[0008] The mounting plate is connected to a support plate via a nut column, an industrial computer is arranged on the support plate, and a data acquisition card and a photoelectric switch are also arranged on the support plate;

[0009] A temperature control component is arranged in the chassis, and the temperature control component is arranged on the mounting plate.

[0010] Furthermore, the temperature control assembly includes a temperature control module, and the temperature control module is connected to the mounting plate via a mounting frame.

[0011] Furthermore, a support stud is fixedly provided on the mounting frame, a fixing plate is connected to the support stud by screws, and the fixing plate is an aluminum plate.

[0012] Furthermore, the chassis is provided with an exhaust port, and the temperature control component also includes an exhaust fan arranged on the exhaust port.

[0013] Furthermore, a scattering fan is connected to the mounting plate via a nut column, an air inlet matching the scattering fan is provided on the chassis, and a protective net is provided on the exhaust port and the air inlet.

[0014] Furthermore, a constant temperature controller is arranged on the mounting plate, and a filter is also arranged on the mounting plate.

[0015] Furthermore, a wavelength division multiplexer is provided on the mounting plate, and the wavelength division multiplexer is fastened to the mounting plate by screws.

[0016] Furthermore, the chassis is provided with a back plate, the back plate is provided with a mounting hole, and a power connection socket is provided in the mounting hole.

[0017] Furthermore, a heat dissipation slot is provided on the industrial computer, a plurality of heat dissipation fins are arranged at intervals in the heat dissipation slot, and heat dissipation channels are formed between the heat dissipation fins.

[0018] Furthermore, a connection block with threaded holes is fixedly provided in the chassis, and the mounting plate and the back plate are fixedly connected to the connection block by screws.

[0019] The optical fiber detection device proposed by the present invention has the following beneficial effects:

[0020] In the present invention, the light source provides the required light to the optical fiber of the optical fiber disk, the detector performs detection, and the temperature in the chassis is controlled by the temperature control component to prevent the temperature in the chassis from being too high to affect the measurement accuracy and the service life of the detection device;

[0021] Secondly, in the present invention, the hot air in the chassis is discharged by arranging an exhaust fan in cooperation with the exhaust port, and the outside air is sucked in by the scattering fan in cooperation with the air inlet, thereby reducing the temperature in the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1A schematic diagram of the structure of an optical fiber detection device proposed by the present invention;

[0023] Figure 2 It is a structural schematic diagram of the industrial control computer of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the photoelectric switch of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the mounting frame of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the backplane of the present invention.

[0027] In the figure: 1. chassis; 11. exhaust port; 12. protective net; 13. back plate; 14. mounting hole; 2. mounting plate; 21. constant temperature controller; 22. filter; 23. wavelength division multiplexer; 3. power supply; 4. detector; 5. fiber optic disk; 51. light source; 6. support plate; 61. data acquisition card; 62. photoelectric switch; 7. industrial computer; 71. heat sink; 72. heat sink; 8. temperature control component; 81. temperature control module; 82. mounting frame; 821. support stud; 822. fixing plate; 83. scattering fan; 84. air inlet; 85. exhaust fan. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-5 , an optical fiber detection device, comprising a chassis 1, a mounting plate 2 is connected to the chassis 1 via a spacer, the mounting plate 2 is fixedly connected to the chassis 1 via screws, a power supply 3 and a detector 4 are arranged on the mounting plate 2, an optical fiber disc 5 is also arranged on the mounting plate 2, and a light source 51 is arranged on one side of the optical fiber disc 5;

[0030] The mounting plate 2 is connected to a support plate 6 via a nut column, an industrial computer 7 is arranged on the support plate 6, and a data acquisition card 61 and a photoelectric switch 62 are also arranged on the support plate 6;

[0031] A temperature control component 8 is disposed in the chassis 1 , and the temperature control component 8 is disposed on the mounting plate 2 .

[0032] In the present invention, the light source 51 provides the required light for the optical fiber of the optical fiber disk 5, the detector 4 performs detection, and the temperature inside the chassis 1 is controlled by the temperature control component 8 to prevent the temperature inside the chassis 1 from being too high and affecting the measurement accuracy and the service life of the detection device.

[0033] Furthermore, in this embodiment, the temperature control assembly 8 includes a temperature control module 81, which is connected to the mounting plate 2 via a mounting bracket 82. The temperature inside the chassis 1 is controlled by the temperature control module 81 to prevent the temperature inside the chassis from being too high and affecting the measurement accuracy and the service life of the detection device.

[0034] In this embodiment, a support stud 821 is fixedly provided on the mounting frame 82 , and a fixing plate 822 is connected to the support stud 821 via screws, and the fixing plate 822 is an aluminum plate.

[0035] Furthermore, in this embodiment, an exhaust port 11 is provided on the chassis 1, and the temperature control component 8 also includes an exhaust fan 85 provided on the exhaust port 11. The exhaust fan 85 cooperates with the exhaust port 11 to discharge hot air in the chassis 1 to prevent heat accumulation from affecting the measurement accuracy and the service life of the detection device.

[0036] In this embodiment, a scattering fan 83 is connected to the mounting plate 2 via a nut column, an air inlet 84 cooperating with the scattering fan 83 is provided on the chassis 1, and a protective net 12 is provided on the exhaust port 11 and the air inlet 84. The scattering fan 83 cooperates with the air inlet 84 to inhale outside air, thereby reducing the temperature inside the chassis 1.

[0037] It should be noted that, in this embodiment, a constant temperature controller 21 is provided on the mounting plate 2, and a filter 22 is also provided on the mounting plate 2. The actual temperature is detected by the constant temperature controller 21 and compared with the set temperature, and then the exhaust fan 85 and the scattering fan 83 in the detection device are controlled to maintain the required constant temperature.

[0038] In this embodiment, a wavelength division multiplexer 23 is provided on the mounting plate 2, and the wavelength division multiplexer 23 is fastened to the mounting plate 2 by screws. The wavelength division multiplexer 23 is used to combine and decompose multiple optical signals of different wavelengths in optical fiber communication.

[0039] In addition, in this embodiment, a back panel 13 is provided on the chassis 1, and a mounting hole 14 is opened on the back panel 13. A wiring socket of a power supply 3 is provided in the mounting hole. An external power supply is connected through the wiring socket to supply power to the power supply 3 in the chassis 1, and the power is converted into the current required by the detection device through the power supply 3.

[0040] In this embodiment, a heat dissipation groove 71 is provided on the industrial computer 7, and a plurality of heat sinks 72 are arranged at intervals in the heat dissipation groove 71. The heat sinks 72 form heat dissipation channels with each other. The heat dissipation groove 71 is provided to prevent the temperature of the industrial computer itself from being too high, which is beneficial to the heat dissipation of the industrial computer 7. The heat dissipation area is increased by providing the heat sink 72, thereby further improving the heat dissipation effect of the industrial computer 7.

[0041] In more detail, in this embodiment, a connection block with threaded holes is fixedly provided in the chassis 1, and the mounting plate 2 and the back plate 13 are fixedly connected to the connection block by screws, which is convenient for disassembly and assembly, and also convenient for maintenance and replacement.

[0042] In some embodiments, the light source 51 is a pulse light source, which uses Nd:YAG (neodymium-doped yttrium aluminum oxide) crystal or Nd:YVO4 (neodymium-doped yttrium vanadate) crystal as a laser activator, and its output end emits laser pulses with a wavelength of 1064 nanometers and a femtosecond level of 10-15 seconds. Femtosecond laser refers to a laser with a time domain pulse width in the order of femtoseconds (10-15 seconds, equivalent to one quadrillionth of a second).

[0043] Working mode: When working, the light source 51 provides the required light for the optical fiber of the optical fiber disk 5, the detector 4 is used for detection, the temperature in the chassis 1 is controlled by the temperature control component 8, the actual temperature is detected by the constant temperature controller 21 and compared with the set temperature. When the temperature is high, the outside air is inhaled through the scattering fan 83 and the air inlet 84 to reduce the temperature in the chassis 1, and the hot air in the chassis 1 is discharged through the exhaust fan 85 and the exhaust port 11 to prevent heat accumulation from affecting the measurement accuracy and the service life of the detection device.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An optical fiber detection device, comprising a chassis (1), characterized in that: The chassis (1) is connected to a mounting plate (2) via a spacer, the mounting plate (2) is provided with a power supply (3) and a detector (4), the mounting plate (2) is also provided with an optical fiber disk (5), and a light source (51) is provided on one side of the optical fiber disk (5); The mounting plate (2) is connected to a support plate (6) via a nut column, an industrial control computer (7) is arranged on the support plate (6), and a data acquisition card (61) and a photoelectric switch (62) are also arranged on the support plate (6); A temperature control component (8) is arranged in the chassis (1), and the temperature control component (8) is arranged on the mounting plate (2).

2. The optical fiber detection device according to claim 1, characterized in that: The temperature control assembly (8) comprises a temperature control module (81), and the temperature control module (81) is connected to the mounting plate (2) via a mounting frame (82).

3. The optical fiber detection device according to claim 2, characterized in that: A support stud (821) is fixedly provided on the mounting frame (82), and a fixing plate (822) is connected to the support stud (821) via screws, and the fixing plate (822) is an aluminum plate.

4. The optical fiber detection device according to claim 2, characterized in that: The chassis (1) is provided with an exhaust port (11), and the temperature control component (8) further comprises an exhaust fan (85) arranged on the exhaust port (11).

5. The optical fiber detection device according to claim 4, characterized in that: A scattering fan (83) is connected to the mounting plate (2) via a nut column, an air inlet (84) matching the scattering fan (83) is provided on the chassis (1), and a protective net (12) is provided on both the exhaust port (11) and the air inlet (84).

6. The optical fiber detection device according to claim 5, characterized in that: A constant temperature controller (21) is provided on the mounting plate (2), and a filter (22) is also provided on the mounting plate (2).

7. An optical fiber detection device according to claim 6, characterized in that: A wavelength division multiplexer (23) is provided on the mounting plate (2), and the wavelength division multiplexer (23) is fastened to the mounting plate (2) by means of screws.

8. The optical fiber detection device according to claim 1, characterized in that: The chassis (1) is provided with a back panel (13), the back panel (13) is provided with a mounting hole (114), and a wiring socket of a power source (3) is provided in the mounting hole.

9. The optical fiber detection device according to claim 1, characterized in that: The industrial computer (7) is provided with a heat dissipation slot (71), a plurality of heat dissipation fins (72) are arranged at intervals in the heat dissipation slot (71), and heat dissipation channels are formed between the heat dissipation fins (72).

10. The optical fiber detection device according to claim 8, characterized in that: A connection block having threaded holes is fixedly arranged in the chassis (1), and the mounting plate (2) and the back plate (13) are fixedly connected to the connection block by means of screws.

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