Deep-sea zero-buoyancy hydrophone array device

Abstract

The utility model relates to the technical field of deep-sea zero-buoyancy hydrophones, and discloses a deep-sea zero-buoyancy hydrophone array device, which comprises a mounting frame, and a connecting flange is arranged on the left side of the mounting frame. The shell assembly is arranged on the left side of the mounting frame; the shell assembly comprises a shell part and a mounting part; the array assembly is arranged at the top of the base plate; the array assembly comprises an array part and a fixing part. The array part is arranged, the hydrophone array is arranged in the frame body, the hydrophones serve as core detection units of the array and are responsible for receiving sound signals in the deep sea, and the hydrophones are usually made of sensitive materials such as piezoelectric ceramics and optical fibers and can convert sound pressure into electric signals or optical signals. The hydrophones are arranged according to a certain geometric layout to form an array, the layout mode is beneficial to enhancing the directivity and sensitivity of signals, and the effect of improving the detection performance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of deep - sea zero - buoyancy hydrophones, and specifically relates to a deep - sea zero - buoyancy hydrophone array device. Background Technique

[0002] A transducer that converts acoustic signals into electrical signals and is used to receive acoustic signals in water is called a receiving transducer, and is also often called a hydrophone. Hydrophones are widely used in underwater communication, exploration, target positioning, tracking, etc. They are important components of sonar. Underwater detection, identification, communication, as well as marine environmental monitoring and marine resource development, all rely on underwater acoustic transducers. An underwater acoustic transducer is a device that converts electrical signals into underwater acoustic signals or converts underwater acoustic signals into electrical signals. Its status in sonar is similar to that of an antenna in radio equipment, and it is an acoustic device for transmitting and receiving sound waves underwater. A transducer that converts electrical signals into underwater acoustic signals and is used to radiate sound waves into water is called a transmitting transducer. A transducer that converts acoustic signals into electrical signals and is used to receive acoustic signals in water is called a receiving transducer, and is also often called a hydrophone.

[0003] Currently, the internal structure of a deep - sea zero - buoyancy hydrophone array device is a complex and precise system designed to achieve efficient acoustic signal acquisition and processing in the deep - sea environment. Although a single hydrophone may be sufficient in some simple scenarios, in situations that require high - precision, high - sensitivity, and directional detection (such as ocean exploration, underwater communication, seismic monitoring, etc.), the performance of a single hydrophone may not meet the requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a deep - sea zero - buoyancy hydrophone array device to achieve the purpose of solving the problems raised in the above - mentioned background technique.

[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solution: A deep - sea zero - buoyancy hydrophone array device includes an installation frame, and a connection flange is arranged on the left side of the installation frame;

[0006] A housing assembly, and the housing assembly is arranged on the left side of the installation frame;

[0007] Among them, the housing assembly includes a housing part and an installation part;

[0008] An array assembly, and the array assembly is arranged on the top of a backing plate;

[0009] Among them, the array assembly includes an array part and a fixing part.

[0010] Preferably, the housing part includes a first side plate. A top plate is fixedly installed on the right side of the first side plate. A housing plate is fixedly installed on the right side of the first side plate. A second side plate is fixedly installed at the right end of the top plate. A bottom plate is fixedly installed at the bottom of the first side plate. The housing plate, the first side plate, the second side plate, the top plate, and the bottom plate form a frame, achieving the effect of protecting the internal components from the external environment.

[0011] Preferably, the first side plate is fixedly installed with the installation frame. The top plate is fixedly installed with the installation frame. The housing plate is fixedly installed with the top plate, the bottom plate, and the second side plate. The second side plate is fixedly installed with the installation frame. The bottom plate is fixedly installed with the installation frame.

[0012] Preferably, the installation part includes a cushion plate. A barrier plate is arranged on the top of the cushion plate. A threaded rod is arranged inside the cushion plate. The setting of the barrier plate ensures the stability and lightness of the array structure, achieving the effect of ensuring stable operation in the deep - sea environment.

[0013] Preferably, the cushion plate is fixedly installed on the top of the bottom plate. The barrier plates are linearly and equidistantly arranged on the top of the cushion plate. Both ends of the barrier plate are in contact with the first side plate and the second side plate. The threaded rod is arranged on the top of the bottom plate. The top end of the threaded rod sequentially penetrates the cushion plate and the barrier plate, and the top end of the threaded rod extends to the top of the barrier plate.

[0014] Preferably, the array part includes a hydrophone. A bottom frame is arranged at the bottom of the hydrophone. Fixing screws are linearly and equidistantly arranged inside the bottom frame. An installation plate is arranged at the bottom of the bottom frame. The setting of the hydrophone array achieves the effect of improving the detection performance.

[0015] Preferably, the hydrophones are linearly and equidistantly arranged on the top of the bottom frame. The top of the hydrophone is in contact with the bottom of the barrier plate. The bottom frames are linearly and equidistantly arranged on the top of the installation plate. The bottom frame and the installation plate are fixedly installed through the fixing screws. The fixing screws are arranged between the hydrophones. The installation plate is arranged on the top of the cushion plate.

[0016] Preferably, the fixing part includes a limiting plate. A nut is arranged on the top of the limiting plate. A gasket is arranged at the bottom of the nut. The limiting plate is arranged at the bottom of the top plate. The top end of the threaded rod sequentially penetrates the limiting plate, the gasket, and the nut, and the top end of the threaded rod extends to the top of the nut. The threaded rod is threadedly installed with the nut. The limiting plate is arranged on the top of the hydrophone. The setting of the nut, the threaded rod, and the limiting plate achieves the effect of stably installing the hydrophone array.

[0017] The utility model provides a deep - sea zero - buoyancy hydrophone array device, which has the following beneficial effects:

[0018] (1). The present utility model improves the detection performance by enhancing the directivity and sensitivity of signals through the following means: an array part is provided, and a hydrophone array is arranged inside a frame. As the core detection unit of the array, the hydrophones are usually made of sensitive materials such as piezoelectric ceramics and optical fibers, which can convert sound pressure into electrical signals or optical signals. The hydrophones are arranged in a certain geometric layout to form an array, and this layout helps to enhance the directivity and sensitivity of the signals.

[0019] (2). The present utility model ensures the stable installation of the hydrophone array by setting a threaded rod, a nut and a limiting plate. The hydrophones are linearly and equidistantly arranged on the top of the bottom frame, and the top of the hydrophones is in contact with the bottom of the partition plate. The bottom frame is linearly and equidistantly arranged on the top of the mounting plate. The limiting plate is arranged on the top of the hydrophones in the array. The gasket, nut and threaded rod are threadedly installed to complete the limitation of the hydrophones. Brief Description of the Drawings

[0020] Figure 1 is a schematic structural view of the present utility model;

[0021] Figure 2 is an internal structural view of the present utility model;

[0022] Figure 3 is a right view of the present utility model;

[0023] Figure 4 is the present utility model Figure 2 partial enlarged view of A in.

[0024] In the figure: 1 mounting frame, 2 connecting flange, 3 housing assembly, 31 housing part, 311 first side plate, 312 top plate, 313 shell plate, 314 second side plate, 315 bottom plate, 32 mounting part, 321 backing plate, 322 partition plate, 323 threaded rod, 4 array assembly, 41 array part, 411 hydrophone, 412 bottom frame, 413 fastening screw, 414 mounting plate, 42 fixing part, 421 limiting plate, 422 nut, 423 gasket. Detailed Description of the Preferred Embodiment

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Examples of the embodiments are shown in the drawings, where like or similar reference numerals denote like or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model.

[0027] Embodiment 1

[0028] A preferred embodiment of a deep - sea zero - buoyancy hydrophone array device provided by the present utility model is as Figures 1-4 shown: A deep - sea zero - buoyancy hydrophone array device includes an installation frame 1, and a connection flange 2 is arranged on the left side of the installation frame 1;

[0029] A housing assembly 3, and the housing assembly 3 is arranged on the left side of the installation frame 1;

[0030] Among them, the housing assembly 3 includes a housing part 31 and an installation part 32;

[0031] The housing part 31 includes a first side plate 311. A top plate 312 is fixedly installed on the right side of the first side plate 311. A shell plate 313 is fixedly installed on the right side of the first side plate 311. A second side plate 314 is fixedly installed at the right end of the top plate 312. A bottom plate 315 is fixedly installed at the bottom of the first side plate 311. The first side plate 311 is fixedly installed with the installation frame 1, the top plate 312 is fixedly installed with the installation frame 1, the shell plates 313 are fixedly installed with the top plate 312, the bottom plate 315 and the second side plate 314 respectively, the second side plate 314 is fixedly installed with the installation frame 1, and the bottom plate 315 is fixedly installed with the installation frame 1; The top of the first side plate 311 and the second side plate 314 is fixedly installed with the bottom of the top plate 312. The bottom of the first side plate 311 and the second side plate 314 is fixedly installed with the bottom plate 315. The shell plates 313 are fixedly installed on one side of the first side plate 311, the second side plate 314, the top plate 312 and the bottom plate 315 respectively. The shell plates 313, the first side plate 311, the second side plate 314, the top plate 312 and the bottom plate 315 form a frame body, and the whole frame body is fixedly installed on the UUV platform through the installation frame 1;

[0032] The installation part 32 includes a cushion plate 321. A partition plate 322 is arranged on the top of the cushion plate 321. A threaded rod 323 is arranged inside the cushion plate 321. The cushion plate 321 is fixedly installed on the top of the bottom plate 315. The partition plates 322 are linearly and equidistantly arranged on the top of the cushion plate 321. Both ends of the partition plate 322 are in contact with the first side plate 311 and the second side plate 314 respectively. The threaded rod 323 is arranged on the top of the bottom plate 315. The top end of the threaded rod 323 sequentially penetrates through the cushion plate 321 and the partition plate 322, and the top end of the threaded rod 323 extends to the top of the partition plate 322; The cushion plate 321 is arranged at the bottom of the inner wall of the frame body. The hydrophones 411 are separated by the partition plates 322. The arrangement of the threaded rod 323 facilitates the limit fixation of the entire row of hydrophones 411.

[0033] Example 2

[0034] Based on Example 1, a preferred embodiment of the deep - sea zero - buoyancy hydrophone array device provided by the present utility model is as follows Figures 1-4 shown: an array assembly 4, and the array assembly 4 is arranged on the top of a backing plate 321;

[0035] Among them, the array assembly 4 includes an array part 41 and a fixing part 42;

[0036] The array part 41 includes a hydrophone 411. A bottom frame 412 is arranged at the bottom of the hydrophone 411. Tightening screws 413 are linearly and equidistantly arranged inside the bottom frame 412. An installation plate 414 is arranged at the bottom of the bottom frame 412. The hydrophones 411 are linearly and equidistantly arranged on the top of the bottom frame 412. The top of the hydrophone 411 is in contact with the bottom of a partition plate 322. The bottom frames 412 are linearly and equidistantly arranged on the top of the installation plate 414. The bottom frame 412 and the installation plate 414 are fixedly installed through the tightening screws 413. The tightening screws 413 are arranged between the hydrophones 411. The installation plate 414 is arranged on the top of the backing plate 321. The hydrophones 411 are arranged in an array inside the frame body. The hydrophones 411, as the core detection units of the array, are responsible for receiving acoustic signals in the deep sea. These hydrophones 411 are usually made of sensitive materials such as piezoelectric ceramics and optical fibers, and can convert sound pressure into electrical signals or optical signals.

[0037] The fixing part 42 includes a limiting plate 421. A nut 422 is arranged at the top of the limiting plate 421. A gasket 423 is arranged at the bottom of the nut 422. The limiting plate 421 is arranged at the bottom of the top plate 312. The top end of a threaded rod 323 sequentially penetrates through the limiting plate 421, the gasket 423, and the nut 422, and the top end of the threaded rod 323 extends to the top of the nut 422. The threaded rod 323 is threadedly installed with the nut 422. The limiting plate 421 is arranged on the top of the hydrophone 411. The limiting plate 421 is arranged on the top of the array of hydrophones 411. The gasket 423, the nut 422 and the threaded rod 323 are threadedly installed to complete the limitation of the hydrophone 411.

[0038] In use, the tops of the first side plate 311 and the second side plate 314 are fixedly installed with the bottom of the top plate 312, the bottoms of the first side plate 311 and the second side plate 314 are fixedly installed with the bottom plate 315, and the shell plate 313 is fixedly installed with one side of the first side plate 311, the second side plate 314, the top plate 312 and the bottom plate 315. The shell plate 313, the first side plate 311, the second side plate 314, the top plate 312 and the bottom plate 315 form a frame body, and the whole frame body is arranged on the UUV platform through the mounting frame 1. The cushion plate 321 is arranged at the bottom of the inner wall of the frame body. The hydrophones 411 are separated by the baffle plate 322. The setting of the threaded rod 323 facilitates the limit fixation of the hydrophones 411 of the whole array. The hydrophone 411 array is arranged inside the frame body. The hydrophone 411, as the core detection unit of the array, is responsible for receiving the acoustic signals in the deep sea. These hydrophones 411 are usually made of sensitive materials such as piezoelectric ceramics and optical fibers, and can convert the sound pressure into electrical signals or optical signals. The limit plate 421 is arranged at the top of the whole row of hydrophones 411. The gasket 423 and the nut 422 are threadedly installed with the threaded rod 323 to complete the limit of the hydrophones 411. At the front end of the hydrophone array, 1 section of the front vibration isolation section is arranged. The front vibration isolation section is connected with the tow head and is used to isolate the low-frequency random interference vibration generated by the UUV platform and the tow cable. The front vibration isolation section is connected with the acoustic vibration section. The function of the acoustic array section is to complete the acquisition of acoustic signals, the amplification of signals and the packaging and transmission of analog data signals. The acoustic array section is composed of sixty-four hydrophones, pre-amplifiers, four AD modules, two nodes, one depth sensor, six power modules, one attitude sensor and corresponding structural parts. One end of the acoustic array section is connected with the rear vibration isolation section. The structure and device arrangement of the rear vibration isolation section are the same as those of the front vibration isolation section. Therefore, the front and rear vibration isolation sections can be interchanged. The rear vibration isolation section is used to isolate the low-frequency disturbance transmitted from the rear end of the whole array during the towing process of the hydrophone array, and at the same time provides a certain resistance along the cable direction to straighten the acoustic array section. The tail rope section is located at the very end of the hydrophone array and is connected with the rear vibration isolation section by a watertight connector. The tail rope section is composed of a tail rope pipe and a nylon rope. When the hydrophone array is retracted and deployed, the tail rope section enters the water first. After entering the water for a certain length, it can provide the tension along the cable direction, and this tension can play a role in stabilizing the hydrophone array in the wake area of the ship.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A deep-sea zero-buoyancy hydrophone array device, characterized in that, It includes an installation frame (1), and a connecting flange (2) is arranged on the left side of the installation frame (1); A housing assembly (3), and the housing assembly (3) is arranged on the left side of the installation frame (1); Among them, the housing assembly (3) includes a housing part (31) and an installation part (32); An array assembly (4), and the array assembly (4) is arranged on the top of a backing plate (321); Among them, the array assembly (4) includes an array part (41) and a fixing part (42).

2. The deep-sea zero-buoyancy hydrophone array device according to claim 1, characterized in that: The housing part (31) includes a first side plate (311), a top plate (312) is fixedly installed on the right side of the first side plate (311), a shell plate (313) is fixedly installed on the right side of the first side plate (311), a second side plate (314) is fixedly installed at the right end of the top plate (312), and a bottom plate (315) is fixedly installed at the bottom of the first side plate (311).

3. The deep-sea zero-buoyancy hydrophone array device according to claim 2, characterized in that: The first side plate (311) is fixedly installed with the installation frame (1), the top plate (312) is fixedly installed with the installation frame (1), the shell plate (313) is fixedly installed with the top plate (312), the bottom plate (315) and the second side plate (314), the second side plate (314) is fixedly installed with the installation frame (1), and the bottom plate (315) is fixedly installed with the installation frame (1).

4. The deep-sea zero-buoyancy hydrophone array device according to claim 1, characterized in that: The installation part (32) includes a backing plate (321), a partition plate (322) is arranged on the top of the backing plate (321), and a threaded rod (323) is arranged inside the backing plate (321).

5. The deep-sea zero-buoyancy hydrophone array device according to claim 4, characterized in that: The backing plate (321) is fixedly installed on the top of the bottom plate (315), the partition plates (322) are linearly and equidistantly arranged on the top of the backing plate (321), both ends of the partition plate (322) are in contact with the first side plate (311) and the second side plate (314), the threaded rod (323) is arranged on the top of the bottom plate (315), the top end of the threaded rod (323) sequentially penetrates the backing plate (321) and the partition plate (322), and the top end of the threaded rod (323) extends to the top of the partition plate (322).

6. The deep-sea zero-buoyancy hydrophone array device according to claim 1, characterized in that: The array part (41) includes a hydrophone (411), a bottom frame (412) is arranged at the bottom of the hydrophone (411), fastening screws (413) are linearly and equidistantly arranged inside the bottom frame (412), and a mounting plate (414) is arranged at the bottom of the bottom frame (412).

7. The deep-sea zero-buoyancy hydrophone array device according to claim 6, characterized in that: The hydrophones (411) are linearly and equidistantly arranged on the top of the bottom frame (412), the top of the hydrophone (411) is in contact with the bottom of the partition plate (322), the bottom frames (412) are linearly and equidistantly arranged on the top of the mounting plate (414), the bottom frame (412) and the mounting plate (414) are fixedly installed through the fastening screws (413), the fastening screws (413) are arranged between the hydrophones (411), and the mounting plate (414) is arranged on the top of the backing plate (321).

8. The deep-sea zero-buoyancy hydrophone array device according to claim 1, wherein: The fixed part (42) includes a limiting plate (421). A nut (422) is provided at the top of the limiting plate (421), and a gasket (423) is provided at the bottom of the nut (422). The limiting plate (421) is arranged at the bottom of the top plate (312). The top end of the threaded rod (323) sequentially penetrates through the limiting plate (421), the gasket (423), and the nut (422), and the top end of the threaded rod (323) extends to the top of the nut (422). The threaded rod (323) is threadedly installed with the nut (422). The limiting plate (421) is arranged at the top of the hydrophone (411).

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