Signal processing host for optical fiber sonic sensor

Abstract

The utility model discloses a signal processing host for an optical fiber sonic sensor. The signal processing host comprises a signal processing host shell. According to the signal processing host for the optical fiber sonic sensor, through the arrangement of the anti-interference mechanism, when the signal processing host is used, a first metal net layer, a ferrite material and a second metal net layer are arranged in a cavity in a shell of the signal processing host, and the ferrite material has a relatively strong magnetic shielding characteristic; external electromagnetic interference or radiation can be effectively blocked, signal integrity is kept, the first metal net layer and the second metal net layer are additionally arranged on the two sides of the surface of the ferrite material, the magnetic shielding effect can be further enhanced, and the influence of an external magnetic field on the ferrite material is reduced. And meanwhile, the first metal net layer and the second metal net layer can provide additional support and protection for the ferrite material, so that the ferrite material is prevented from physical damage or compressive deformation during use, the anti-interference performance of the equipment is improved, and the equipment is prevented from being influenced by an external magnetic field.

Description

Technical Field

[0001] The utility model relates to the technical field of an optical fiber acoustic wave signal processing host, in particular to a signal processing host for an optical fiber acoustic wave sensor. Background Art

[0002] In recent years, with the rapid development of information technology, optical fiber has become not only a carrier for high-speed data transmission but has also been widely used in various sensing technologies, particularly fiber optic acoustic sensors (FOAS). With its unique advantages of long-distance monitoring, high sensitivity, and strong resistance to electromagnetic interference, FOAS has shown great potential in fields such as oil and gas pipeline monitoring, earthquake detection, and military security. In a FOAS system, the signal processing host is responsible for converting the acoustic wave signals transmitted by the optical fiber into analyzable data information, serving as the "brain" of the entire system. Its performance directly determines the sensor's detection accuracy and response speed.

[0003] Traditional fiber optic acoustic wave sensors and their signal processing systems are seriously affected by various factors such as external electromagnetic interference, mechanical vibration, and temperature changes. The signal purity and reliability are severely affected, resulting in an increase in the false alarm rate and reducing the effectiveness of the overall system. Especially in complex environmental conditions, it is particularly important to improve the performance and anti-interference ability of signal processing. Therefore, a signal processing host for fiber optic acoustic wave sensors is proposed. Utility Model Content

[0004] The technical problems to be solved by the present invention are as follows: to provide a signal processing host for an optical fiber acoustic wave sensor which is highly practical, can be operated simply, and has a relatively simple structure, thereby solving the problem of improving the anti-interference of the signal processing host of the optical fiber acoustic wave sensor proposed in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A signal processing host for an optical fiber acoustic wave sensor, comprising a signal processing host housing, a cavity being defined within the housing, an anti-interference mechanism being installed within the cavity, two support blocks being threadedly connected to the front surface of the signal processing host housing, a wire harnessing mechanism being fixedly connected to the surface of the support blocks, the anti-interference mechanism comprising a first metal mesh layer installed within the cavity, a ferrite material being fixedly connected to one side of the first metal mesh layer, and a second metal mesh layer being fixedly connected to one side of the ferrite material; the wire harnessing mechanism comprising a winding rod fixedly connected to the surface of the support block, an extrusion ring being slidably connected to the surface of the winding rod, and a support spring being fixedly connected to one side of the extrusion ring.

[0007] As a further solution of the present invention: the support spring is sleeved on the surface of the winding rod, one end of the support spring is fixedly connected to the surface of the support block, and the winding rod is convenient for winding the cable.

[0008] As a further solution of the present invention: heat dissipation mechanisms are threadedly connected to both sides of the surface of the signal processing host housing, and a plurality of wiring ports are opened on the front of the signal processing host housing, which are convenient for connecting external connectors.

[0009] As a further solution of the present invention: the heat dissipation mechanism includes heat dissipation fins threadedly connected to both sides of the surface of the signal processing host housing, the surface of the heat dissipation fins is threadedly connected to two screws, and the heat dissipation fins facilitate heat dissipation inside the device.

[0010] As a further solution of the present invention: two fixing blocks are fixedly connected to the back of the signal processing host housing, and two cooling fans are installed on the surface of the fixing blocks, which facilitate heat dissipation of the cooling fins.

[0011] As a further solution of the present invention: the second metal mesh layer is installed on the inner wall of the cavity, four positioning blocks are installed inside the signal processing host shell, and threaded holes are opened on the surface of the positioning blocks, which facilitate the fixing of the sealing cover.

[0012] As a further solution of the present invention: the internal thread of the positioning block is connected to a sealing cover, and the interior of the sealing cover is provided with the same anti-interference mechanism as the signal processing host housing. The sealing cover facilitates the removal of electrical components inside the signal processing host housing.

[0013] Beneficial effects of the utility model:

[0014] 1. Through the setting of the anti-interference mechanism, when in use, a first metal mesh layer, a ferrite material and a second metal mesh layer are provided in the cavity inside the shell of the signal processing host. The ferrite material has a strong magnetic shielding property, which can effectively block external electromagnetic interference or radiation and maintain the integrity of the signal. In addition, adding the first metal mesh layer and the second metal mesh layer on both sides of the surface of the ferrite material can further enhance its magnetic shielding effect and reduce the influence of the external magnetic field on the ferrite material. At the same time, the first metal mesh layer and the second metal mesh layer can also provide additional support and protection for the ferrite material to prevent the ferrite material from physical damage or compression deformation during use, thereby improving the anti-interference performance of the equipment and ensuring that the equipment is protected from the influence of the external magnetic field.

[0015] 2. Through the setting of the cable bundling mechanism, when in use, you can squeeze the extrusion ring on the winding rod and wind the excess cables around the winding rod, then loosen the extrusion rings on both sides. The extrusion rings are subjected to the reverse force provided by the back support spring to position the cables wound on the winding rod, thereby achieving the effect of bundling excess cables, avoiding disorderly placement of cables, causing cable entanglement, affecting the appearance of the equipment, and causing inconvenience to maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the wire harness mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the heat dissipation mechanism structure of the utility model;

[0020] Figure 4 It is a structural diagram of the anti-interference mechanism of the utility model.

[0021] In the figure: 1. Signal processing host casing; 2. Anti-interference mechanism; 201. First metal mesh layer; 202. Ferrite material; 203. Second metal mesh layer; 3. Support block; 4. Wiring mechanism; 401. Winding rod; 402. Extrusion ring; 403. Support spring; 5. Heat dissipation mechanism; 501. Heat dissipation fins; 502. Screws; 6. Wiring port; 7. Fixing block; 8. Cooling fan; 9. Positioning block; 10. Sealing cover. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying 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.

[0023] like Figure 1-4As shown, a signal processing host for an optical fiber acoustic wave sensor includes a signal processing host housing 1, a cavity is opened inside the signal processing host housing 1, and an anti-interference mechanism 2 is installed inside the cavity. Through the setting of the anti-interference mechanism 2, the anti-interference performance of the device is improved, ensuring that the device is protected from the influence of the external magnetic field. The front surface of the signal processing host housing 1 is threadedly connected to two support blocks 3, and the surface of the support block 3 is fixedly connected to a wiring mechanism 4. Through the setting of the wiring mechanism 4, the effect of bundling excess cables is achieved, avoiding disorderly placement of cables, causing cable entanglement, affecting the appearance of the equipment, and causing inconvenience to maintenance personnel. The anti-interference mechanism 2 includes a first metal mesh layer 201 installed inside the cavity, and one side of the first metal mesh layer 201 is fixedly connected to a ferrite material 202, and one side of the ferrite material 202 is fixedly connected to a second metal mesh layer 203; the wiring mechanism 4 includes a winding rod 401 fixedly connected to the surface of the support block 3, and the surface of the winding rod 401 is slidably connected to an extrusion ring 402, and one side of the extrusion ring 402 is fixedly connected to a support spring 403;

[0024] like Figure 2 As shown, the support spring 403 is sleeved on the surface of the winding rod 401, and one end of the support spring 403 is fixedly connected to the surface of the support block 3, so that the winding rod 401 is convenient for winding the cable;

[0025] like Figure 3 As shown, both sides of the surface of the signal processing host housing 1 are threadedly connected with heat dissipation mechanisms 5, and the front of the signal processing host housing 1 is provided with a plurality of wiring ports 6, which are convenient for connecting external connectors;

[0026] like Figure 3 As shown, the heat dissipation mechanism 5 includes heat dissipation fins 501 threadedly connected to both sides of the surface of the signal processing host housing 1. Two screws 502 are threadedly connected to the surface of the heat dissipation fins 501. The heat dissipation fins 501 facilitate heat dissipation inside the device.

[0027] like Figure 3 As shown, the back of the signal processing host housing 1 is fixedly connected to two fixing blocks 7, and two cooling fans 8 are installed on the surface of the fixing blocks 7. The cooling fans 8 are convenient for dissipating heat from the cooling fins 501.

[0028] like Figure 4 As shown, the second metal mesh layer 203 is installed on the inner wall of the cavity, and four positioning blocks 9 are installed inside the signal processing host housing 1. The surface of the positioning blocks 9 is provided with threaded holes, and the positioning blocks 9 are convenient for fixing the sealing cover 10;

[0029] like Figure 4As shown, the internal thread of the positioning block 9 is connected to a sealing cover 10, and the interior of the sealing cover 10 is provided with an anti-interference mechanism 2 that is the same as the signal processing host housing 1. The sealing cover 10 facilitates the removal of electrical components inside the signal processing host housing 1.

[0030] The working principle of the present invention is as follows: when in use, a first metal mesh layer 201, a ferrite material 202, and a second metal mesh layer 203 are provided in the cavity inside the signal processing host housing 1. The ferrite material 202 has strong magnetic shielding properties, which can effectively block external electromagnetic interference or radiation and maintain signal integrity. In addition, adding the first metal mesh layer 201 and the second metal mesh layer 203 on both sides of the surface of the ferrite material 202 can further enhance its magnetic shielding effect and reduce the influence of the external magnetic field on the ferrite material. At the same time, the first metal mesh layer 201 and the second metal mesh layer 203 can also provide additional support and protection for the ferrite material 202 to prevent the ferrite material 202 from being physically damaged or compressed and deformed during use.

[0031] When in use, the squeezing ring 402 on the winding rod 401 can be squeezed and the excess cable can be wound around the winding rod 401. Then, the squeezing rings 402 on both sides can be loosened. The squeezing rings 402 are subjected to the reverse force provided by the back support spring 403 to position the cable wound around the winding rod 401.

[0032] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A signal processing host for a fiber optic acoustic wave sensor, comprising a signal processing host housing (1), characterized in that: A cavity is provided inside the signal processing host housing (1), an anti-interference mechanism (2) is installed inside the cavity, two support blocks (3) are threadedly connected to the front of the signal processing host housing (1), and a wiring mechanism (4) is fixedly connected to the surface of the support block (3). The anti-interference mechanism (2) comprises a first metal mesh layer (201) installed inside the cavity, a ferrite material (202) being fixedly connected to one side of the first metal mesh layer (201), and a second metal mesh layer (203) being fixedly connected to one side of the ferrite material (202); The harness mechanism (4) comprises a winding rod (401) fixedly connected to the surface of the support block (3); a squeezing ring (402) is slidably connected to the surface of the winding rod (401); and a support spring (403) is fixedly connected to one side of the squeezing ring (402).

2. The signal processing host for a fiber optic acoustic wave sensor according to claim 1, characterized in that: The support spring (403) is sleeved on the surface of the winding rod (401), and one end of the support spring (403) is fixedly connected to the surface of the support block (3).

3. The signal processing host for a fiber optic acoustic wave sensor according to claim 1, characterized in that: Both sides of the surface of the signal processing host housing (1) are threadedly connected with heat dissipation mechanisms (5), and the front of the signal processing host housing (1) is provided with a plurality of wiring ports (6).

4. The signal processing host for a fiber optic acoustic wave sensor according to claim 3, characterized in that: The heat dissipation mechanism (5) comprises heat dissipation fins (501) threadedly connected to both sides of the surface of the signal processing host housing (1), and two screws (502) are threadedly connected to the surface of the heat dissipation fins (501).

5. The signal processing host for a fiber optic acoustic wave sensor according to claim 1, characterized in that: Two fixing blocks (7) are fixedly connected to the back of the signal processing host housing (1), and two cooling fans (8) are installed on the surface of the fixing blocks (7).

6. The signal processing host for a fiber optic acoustic wave sensor according to claim 1, characterized in that: The second metal mesh layer (203) is installed on the inner wall of the cavity, and four positioning blocks (9) are installed inside the signal processing host housing (1), and threaded holes are provided on the surfaces of the positioning blocks (9).

7. The signal processing host for the fiber optic acoustic wave sensor according to claim 6, characterized in that: The internal thread of the positioning block (9) is connected to a sealing cover (10), and the interior of the sealing cover (10) is provided with an anti-interference mechanism (2) identical to that of the signal processing host housing (1).

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