CN109959915B - Multi-beam sonar array - Google Patents
Multi-beam sonar array Download PDFInfo
- Publication number
- CN109959915B CN109959915B CN201711442980.0A CN201711442980A CN109959915B CN 109959915 B CN109959915 B CN 109959915B CN 201711442980 A CN201711442980 A CN 201711442980A CN 109959915 B CN109959915 B CN 109959915B
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- Prior art keywords
- shell
- sonar
- sealing
- sound
- transducer
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- 238000007789 sealing Methods 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 21
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009545 invasion Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/66—Sonar tracking systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
Abstract
The invention provides a multi-beam sonar array, which comprises an electronic cabin shell, a transducer array, a sonar shell, a sound transmission cover and an O-shaped sealing ring. The electronic cabin is used for placing electronic equipment and is connected with the sonar shell in a sealing way; the transducer is a piezoelectric ceramic acoustic unit integrating receiving and transmitting and is arranged on the sonar shell; the sonar shell is in a structural form that a cylindrical section shell and a hemispherical shell are combined, the cylindrical section shell is divided into a plurality of layers, each layer further comprises a plurality of primitives, and the detection of small targets in a range of 360 degrees in the horizontal direction and a certain vertical included angle is realized through scanning of an electron beam on a horizontal plane. The high-resolution image sonar taking the small target as the detection object can realize the detection of the small target in a range of 360 degrees in the horizontal direction and a certain vertical included angle.
Description
Technical Field
The invention relates to the technical field of underwater small target detection, in particular to a multi-beam sonar array.
Background
Currently, underwater small targets such as AUV, frogman and the like become the main angles of shallow sea invasion, port penetration, oilfield destruction, directional guidance, terrorist attack destruction and local conflict. The device has the advantages of strong maneuverability, target echo and unobvious radiation characteristics. Various offshore operations and equipment are developed greatly abroad, underwater operations are established, frogman troops are permeated, unmanned operations platforms on water and underwater are developed, and advanced frogman transportation devices and the like are developed. Therefore, the sound detection equipment is distributed in an important water area, and the detection, positioning, identification and tracking of the invasion target are important means for resisting the threat of underwater frogman, a carrier, an underwater robot and the like at present.
At present, a sonar array for underwater small-target detection needs to adopt a mechanical motion mode to finish 360-degree scanning detection in the horizontal direction, and the problem of complex structure exists
Disclosure of Invention
The embodiment of the invention provides a multi-beam sonar array, which aims to solve the problem that 360-degree scanning detection in the horizontal direction needs to be completed by adopting a mechanical motion mode in the prior art.
In order to solve the technical problems, the embodiment of the invention adopts the following technical scheme:
a multi-beam sonar array comprises an electronic cabin shell, a transducer element, a sonar shell, a sound transmission cover and an O-shaped sealing ring; the electronic cabin is used for placing electronic equipment and is connected with the sonar shell in a sealing way; the transducer unit is a piezoelectric ceramic acoustic unit integrating transceiver and is arranged on the sonar shell and used for actively detecting or passively monitoring an underwater target; the sonar shell is of a structure that a cylindrical shell and a hemispherical shell are combined, the cylindrical shell is divided into a plurality of layers, and each layer comprises a plurality of transducer element mounting holes; the electronic cabin shell is in sealing installation with the sonar shell through an O-shaped sealing ring, the sound transmission cover is in sealing installation with the sonar shell through the O-shaped sealing ring, and the transducer element is in sealing installation with the sonar shell through the O-shaped sealing ring.
The transducer element mounting holes between the layers of the sonar shell cylindrical section shell are arranged in a staggered mode, and the center distance between every two adjacent transducer mounting holes is half of the wavelength of sound waves generated by the transducer elements.
Preferably, sealing the compression screw and filling liquid; the end face of the cylindrical section of the sonar shell is provided with a plurality of oil-filled sealing holes, liquid is filled between the sonar shell and the sound-transmitting cover through the oil-filled sealing holes, then the sealing pressurizing screws are screwed into the oil-filled sealing holes to pressurize the filling liquid between the sonar shell and the sound-transmitting cover, and the filling liquid is sound-transmitting oil or other liquid.
Further, the oil filling sealing hole is a combination structure of a threaded hole and a unthreaded hole.
The beneficial effects of the invention are as follows: the embodiment of the invention provides a multi-beam sonar array, which comprises an electronic cabin shell, a transducer element, a sonar shell, a sound-transmitting cover and an O-shaped sealing ring, wherein the electronic cabin shell is provided with a plurality of acoustic wave channels; the sonar shell of the multi-beam sonar array adopts a cylindrical section shell and a hemispherical shell to be combined, the cylindrical section shell is divided into a plurality of layers, each layer comprises a plurality of transducer element mounting holes, and a plurality of layers of transducer elements are mounted; each transducer is arranged on a sonar shell in a sealing way through an O-shaped sealing ring, the formed sonar array can realize active or passive detection of ocean full space within a certain radius range, and small targets can be detected within a certain vertical included angle range in the horizontal direction of 360 degrees by electronic beam scanning on a horizontal plane by applying the multi-beam sonar array. Therefore, the invention solves the problem that the scanning detection of 360 degrees in the horizontal direction needs to be completed by adopting a mechanical movement mode in the prior art.
Drawings
Fig. 1 is a schematic structural diagram of a multi-beam sonar array provided by an embodiment of the present invention;
fig. 2 is an enlarged schematic diagram of a part of an oil-filled hole of the multi-beam sonar array according to the embodiment of the present invention;
fig. 3 is a schematic view of a sealing compression screw provided by an embodiment of the present invention.
In the figure: 1-electronic cabin shell, 2-transducer element, 3-sonar shell, 4-filling liquid, 5-sound transmission cover, 6-sealing pressurizing screw, 7-O-shaped sealing ring, 8-O-shaped sealing ring mounting groove and 9-thread section.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is evident that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
Referring to fig. 1, the embodiment of the invention provides a multi-beam sonar array, which consists of an electronic cabin shell 1, a transducer element 2, a sonar shell 3, a sound transmission cover 5 and an O-shaped sealing ring 7. The electronic cabin shell 1 and the sonar shell 3 are hermetically installed through an O-shaped sealing ring 7, the transducer elements 2 are piezoelectric ceramic acoustic units which are integrated into a whole in a receiving and transmitting mode, and each transducer element 2 is hermetically installed on the sonar shell 3 through the O-shaped sealing ring 7. The sound-transmitting cover 5 and the sonar shell 3 are mounted in a sealing way through the O-shaped sealing ring 7, so that the sonar array element can be detached and replaced at will, and damaged sonar array elements can be replaced conveniently.
In the embodiment of the invention, the sonar shell 3 consists of a cylindrical section shell and a hemispherical section shell, and the detection of a small target in a certain vertical included angle range in the horizontal direction of 360 degrees is realized through electronic beam scanning on the horizontal plane.
In order to effectively inhibit side lobes and grating lobes of a sonar array and improve detection precision, according to the size of a detection target and the detection distance requirement, the outer diameter of a cylindrical section is phi 400mm through theoretical calculation, 64 transducer elements are required to be distributed in each layer, and the distance between the elements is about 19.6mm. The transducer mounting holes on the sonar shell 3 are arranged in a staggered manner, and the center distance between every two adjacent transducer mounting holes is equal to half wavelength of sound waves generated by the transducer elements 2. Six layers of transducer mounting holes are designed on the cylindrical section, and 32 transducer elements 2 are distributed on each layer; the hemispherical shell is provided with eight layers of transducer mounting holes, the first layer from top to bottom is 32 transducer elements 2, the second layer is 30 transducer elements 2, the third layer is 28 transducer elements 2, the fourth layer is 25 transducer elements 2, the fifth layer is 20 transducer elements 2, the sixth layer is 15 transducer elements 2, the seventh layer is 9 transducer elements 2, and the eighth layer is 4 transducer elements 2.
Referring to fig. 2 and 3, in order to increase the working depth of the detection sonar, the embodiment of the invention also facilitates the maintenance of the sonar array and the replacement of the sound-transmitting cover, and further comprises a filling liquid 4 and a sealing pressurizing screw 6. The end face of the cylindrical section of the sonar shell is provided with 6 oil-filled sealing holes. The oil filling sealing hole is formed by combining a threaded hole and an optical hole, liquid can be filled between the sonar shell and the sound-transmitting cover through the 6 oil filling holes, and then the sealing pressurizing screw is screwed into the oil filling sealing hole to pressurize silicone oil between the sonar shell and the sound-transmitting cover. By adopting the technical scheme, the internal and external pressure of the sound-transmitting cover 5 can be balanced, and the use depth of sonar equipment is improved.
The sealing pressurizing screw 6 in the sonar array is matched with the oil filling sealing hole in the sonar shell, and the sealing pressurizing screw 6 is a nonstandard screw with an O-shaped sealing ring mounting groove. The threaded section 9 in the sealing pressurizing screw 6 is matched with the threaded hole of the oil filling sealing hole, and the O-shaped sealing ring mounting groove 8 in the pressurizing screw is sleeved into the sealing ring and then is matched with the unthreaded hole at the oil filling sealing hole in a sealing mode. By adopting the technical scheme, the sealing pressurizing screw can be used for pressurizing the filling oil between the sonar shell and the sound-transmitting cover.
In the embodiment of the invention, the filling liquid can be sound-transmitting oil, is filled between the sound-transmitting cover and the sound-receiving shell, and is used for balancing the pressure difference between the inside and the outside of the sound-transmitting cover and improving the working depth of sonar equipment.
In order to improve the resolution of the detection distance and the vertical direction, the array is also designed to be a narrow beam in the vertical direction and scans up and down.
The hemispherical part in the sonar array is responsible for small target detection in a cylindrical section test blind area, and the positioning function is realized through electronic beam scanning. Thereby realizing ocean full-space detection with the test point as the center and within a certain test radius range.
The embodiment of the invention provides a multi-beam sonar array, which comprises an electronic cabin shell 1, a transducer element 2, a sonar shell 3, a sound transmission cover 5 and an O-shaped sealing ring 7; the sonar shell of the multi-beam sonar array adopts a cylindrical section shell and a hemispherical shell to be combined, the cylindrical section shell is divided into a plurality of layers, each layer comprises a plurality of transducer element mounting holes, and a plurality of layers of transducer elements are mounted; each transducer is arranged on a sonar shell in a sealing way through an O-shaped sealing ring, the formed sonar array can realize active or passive detection of ocean full space within a certain radius range, and small targets can be detected within a certain vertical included angle range in the horizontal direction of 360 degrees by electronic beam scanning on a horizontal plane by applying the multi-beam sonar array. Therefore, the invention solves the problem that the scanning detection of 360 degrees in the horizontal direction needs to be completed by adopting a mechanical movement mode in the prior art.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (2)
1. The multi-beam sonar array is characterized by comprising an electronic cabin shell, a transducer element, a sonar shell, a sound transmission cover and an O-shaped sealing ring; the electronic cabin is used for placing electronic equipment and is connected with the sonar shell in a sealing way; the transducer element is a piezoelectric ceramic acoustic unit integrating transceiver and is arranged on the sonar shell and used for actively detecting or passively monitoring an underwater target; the sonar shell is of a structure that a cylindrical shell and a hemispherical shell are combined, the cylindrical shell is divided into a plurality of layers, and each layer comprises a plurality of transducer element mounting holes; the electronic cabin shell is in sealing installation with the sonar shell through an O-shaped sealing ring, the sound transmission cover is in sealing installation with the sonar shell through the O-shaped sealing ring, and the transducer element is in sealing installation with the sonar shell through the O-shaped sealing ring;
the transducer element mounting holes between the layers of the cylindrical section shell of the sonar shell are arranged in a staggered manner, and the center distance between every two adjacent transducer mounting holes is half of the wavelength of sound waves generated by the transducer elements;
the sealing pressurizing screw and the filling liquid are also included; the sonar shell is characterized in that a plurality of oil-filled sealing holes are formed in the end face of the cylindrical section of the sonar shell, liquid is filled between the sonar shell and the sound-transmitting cover through the oil-filled sealing holes, and then sealing pressurizing screws are screwed into the oil-filled sealing holes to pressurize the filling liquid between the sonar shell and the sound-transmitting cover, wherein the filling liquid is sound-transmitting oil.
2. The multi-beam sonar array of claim 1, wherein the oil filled seal hole is a combination of a threaded hole and an optical hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442980.0A CN109959915B (en) | 2017-12-26 | 2017-12-26 | Multi-beam sonar array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711442980.0A CN109959915B (en) | 2017-12-26 | 2017-12-26 | Multi-beam sonar array |
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| Publication Number | Publication Date |
|---|---|
| CN109959915A CN109959915A (en) | 2019-07-02 |
| CN109959915B true CN109959915B (en) | 2023-12-12 |
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|---|---|---|---|
| CN201711442980.0A Active CN109959915B (en) | 2017-12-26 | 2017-12-26 | Multi-beam sonar array |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220969B (en) * | 2019-10-28 | 2023-06-30 | 浙江优威科技有限公司 | Land networking training and performance testing integrated device of underwater communication sonar |
| CN110703197B (en) * | 2019-11-08 | 2021-09-07 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Lateral measurement type inverted ultrashort baseline transmitting-receiving transducer and working mode thereof |
| CN112964897B (en) * | 2021-02-07 | 2023-03-24 | 中国科学院声学研究所东海研究站 | Doppler transducer array with asymmetric structure |
| CN113687339B (en) * | 2021-07-15 | 2024-03-08 | 中国船舶重工集团公司第七一五研究所 | High-frequency arc-shaped emission matrix for full-sea deep work |
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| US7542375B2 (en) * | 2006-12-05 | 2009-06-02 | Matthew Sawrie | Method for simultaneous transmission of soundwaves and, in particular, sonar pulses, without interference |
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| CN109959915A (en) | 2019-07-02 |
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