CN111044995A - Planar transmitting array with wide-angle coverage in horizontal direction - Google Patents
Planar transmitting array with wide-angle coverage in horizontal direction Download PDFInfo
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- CN111044995A CN111044995A CN201911106697.XA CN201911106697A CN111044995A CN 111044995 A CN111044995 A CN 111044995A CN 201911106697 A CN201911106697 A CN 201911106697A CN 111044995 A CN111044995 A CN 111044995A
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- 238000003491 array Methods 0.000 claims abstract description 34
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 17
- 239000011159 matrix material Substances 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000523 sample Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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- 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
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- 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
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Abstract
The invention relates to a plane transmitting array covered by wide angles in the horizontal direction, which consists of three groups of arrays, namely a left array, a middle array and a right array, wherein the left array consists of 3 linear arrays, the middle array consists of 2 linear arrays, the right array consists of 3 linear arrays, and 8 linear arrays are linear arrays formed by distributing piezoelectric ceramic particles along the navigation direction. The left side array and the middle array are structurally installed at a certain included angle, and finally the deflection angle of the left side array is the sum of the mechanical installation angle and the electric beam control deflection angle; the right array and the middle array are structurally installed at a certain included angle. The left array, the middle array and the right array adopt a frequency division working mode, the horizontal coverage angle of the whole planar emission array is the sum of the horizontal coverage angles of the left array, the middle array and the right array, and finally the horizontal wide angle coverage of the planar emission array is realized. The invention has the main advantages of simple planar emission array type, simple and reliable process and wide horizontal coverage angle.
Description
Technical Field
The invention belongs to the technical field of underwater acoustic transducer array, and mainly relates to a plane transmitting array covered by a wide angle in the horizontal direction.
Background
In order to obtain abundant ocean resources, people must first know the submarine topography and landform, thereby promoting the appearance of multi-beam sounding sonars. The multi-beam sounding sonar is also called a multi-beam sounder, a strip sounder or a multi-beam sounding system, and the initial design concept is to improve the submarine topography measuring efficiency. The multi-beam depth sounders are classified into shallow water multi-beam sonars, mid-water multi-beam sonars, and deep water multi-beam sonars.
The multi-beam detection can obtain the depth values of the seabed of a plurality of measuring points in the coverage area of one strip, so that the line-surface measurement is realized, and the significance of the technical progress is very prominent. In the practical application process of the multi-beam sounding sonar, people find the most interesting is the practical effective coverage range of the line-side measurement. By coverage is generally meant the ratio of horizontal probe distance to vertical probe depth, which determines the actual measurement efficiency. Therefore, how to improve the coverage of multi-beam sounding sonar detection is a long-standing front-edge hotspot problem. The coverage angle of the multi-beam emission array in the horizontal direction is one of key technologies of the coverage range of multi-beam sounding sonar detection.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a plane transmitting array with wide coverage angle in the horizontal direction, and the acoustic array realizes the wide coverage angle in the horizontal direction and can be applied to a ship-borne multi-beam sonar system and the like.
The object of the present invention is achieved by the following technical means. Horizontal widthThe plane emission array covered by the angle mainly comprises a left side array, a middle array and a right side array, and is conformal with the ship bottom, wherein a left side plane where the left side array is located and a middle plane where the middle array is located form a certain included angle theta1The right side plane of the right side array and the middle plane of the middle array form a certain included angle theta3Arranging, wherein the left basic array, the middle basic array and the right basic array form a plurality of linear arrays by a plurality of array elements; the deflection angle of the left array is an installation angle theta1Angle theta of deflection with electric beam2The sum, the right side matrix deflection angle is the installation angle theta3Angle theta of deflection with electric beam4And the horizontal coverage angle of the whole planar emission array is the sum of the horizontal coverage angles of the left array, the middle array and the right array, so that the horizontal wide coverage angle of the planar emission array is realized.
Furthermore, the left side array comprises 3 linear arrays formed by array elements A, array elements B and array elements C and formed by distributing piezoelectric ceramic particles along the navigation direction. When the left side matrix formed by the array element A, the array element B and the array element C is subjected to electric beam control deflection, the beam angle of the array element A, the array element B and the array element C is deflected leftwards by an angle theta2Finally, the included angle between the left side array acoustic radiation wave beam direction and the middle array acoustic radiation wave beam direction is theta1+θ2。
Furthermore, the middle array consists of 2 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the array elements G and the array elements H form the middle array.
Furthermore, the right-side base array is composed of 3 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 3 linear arrays are formed by array elements D, array elements E and array elements F. When the right side matrix formed by the array elements D, E and F is subjected to electric beam control deflection, the beam angle of the array elements D, E and F is theta4Finally, the included angle between the direction of the right-side array acoustic radiation wave beam and the direction of the middle array acoustic radiation wave beam is theta3+θ4。
As a preferable scheme: the left array, the middle array and the right array adopt frequency division operation, namely the three arrays have different working frequencies.
As a preferable scheme: the planar emission array is sealed by a watertight glue layer.
The invention has the beneficial effects that: the planar emission array is in a planar mode, is conformal with the ship bottom, and has the capability of wide sector, broadband and multi-channel three-dimensional scanning emission. The array has the advantages of simple array type, simple and reliable process and wide horizontal coverage angle. The system can be applied to ship-borne multi-beam sonar systems, can improve the coverage range of the multi-beam depth sonar, and improves the measurement efficiency of the multi-beam depth sonar during submarine topography surveying and mapping.
Drawings
Fig. 1 is a schematic structural section in the horizontal dimension of a planar emission array.
Fig. 2 is a schematic view of the angle of an acoustic radiation beam in the horizontal dimension of a planar emission array.
Fig. 3 is a schematic horizontal-dimensional cross-sectional view of a planar emission array with a sealant layer.
Description of reference numerals: the array comprises a left side base array 1, an array element A1-1, an array element B1-2, an array element C1-3, a right side base array 2, an array element D2-1, an array element E2-2, an array element F2-3, a middle base array 3, an array element G3-1, an array element H3-2, a left side plane 4, a right side plane 5, a middle plane 6, a beam A7, a beam B8, a beam C9, a beam D10, a beam E11 and a watertight glue layer 12.
Detailed Description
The invention will be described in detail with reference to the following figures and examples:
as shown in the figure, the invention discloses a plane transmitting array with wide coverage angle in the horizontal direction, which mainly comprises a left side array 1, a middle array 3 and a right side array 2 and is conformal with the ship bottom, wherein a left side plane 4 where the left side array 1 is located and a middle plane 6 where the middle array 3 is located form a certain included angle theta1The right side plane 5 where the right side array 2 is located and the middle plane 6 where the middle array 3 is located form a certain included angle theta3And (4) arranging. The left side base array 1 is composed of 3 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 3 linear arrays are composed of array elements A1-1, array elements B1-2 and array elements C1-3. The direction of travel is perpendicular to the horizontal direction shown in FIG. 1, i.e. the load is largeBeam device the direction of travel of the ship. When the left base array 1 formed by the array element A1-1, the array element B1-2 and the array element C1-3 is subjected to electric beam control deflection, the beam angle of the array element A1-1, the array element B1-2 and the array element C1-3 is deflected leftwards by an angle theta2Finally, the included angle between the direction of the acoustic radiation wave beam of the left array 1 and the direction of the acoustic radiation wave beam of the middle array 3 is theta1+θ2. The middle base array 3 is composed of 2 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 2 linear arrays are composed of array elements G3-1 and array elements H3-2. The right base array 2 is composed of 3 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 3 linear arrays are composed of array elements D2-1, array elements E2-2 and array elements F2-3. When the right base array 2 formed by the array element D2-1, the array element E2-2 and the array element F2-3 is subjected to electric beam control deflection, the beam angle of the array element D2-1, the array element E2-2 and the array element F2-3 is deflected rightwards by an angle theta4Finally, the included angle between the direction of the acoustic radiation wave beam of the right array 2 and the direction of the acoustic radiation wave beam of the middle array 3 is theta3+θ4。
In the technical scheme, a beam D10 is a directional diagram of a left-side base array formed by an array element A1-1, an array element B1-2 and an array element C1-3, a beam E11 is an array element G3-1, an array element H3-2 is a natural directional diagram of a middle base array, a beam A7 is a directional diagram of a left-side base array formed by an array element D2-1, an array element E2-2 and an array element F2-3, a beam C9 is a directional diagram of a left-side base array formed by an array element A1-1, an array element B1-2 and an array element C1-3, and a beam B8 is an array element D2-1, an array element E2-2 and an array element F2-3 are directional diagrams of a right-side base array formed by an array element F2-3. As shown in fig. 2.
In the above technical scheme, the left array 1, the middle array 3 and the right array 2 adopt frequency division operation, that is, the operating frequencies of the three arrays are different, so that mutual interference of the three arrays during operation can be avoided. Finally, the three groups of basic arrays form a multi-beam transmitting basic array horizontal wide coverage angle. The deflection angle of the left array 1 is an installation angle theta1Angle theta of deflection with electric beam2The sum of the angle of deflection of the right array 2 is the installation angle theta3Angle theta of deflection with electric beam4The horizontal coverage angle of the whole plane emission array is the horizontal coverage angle of the left array 1, the middle array 3 and the right array 2And, thereby, the horizontal wide coverage angle of the planar emission array is realized.
In the above technical solution, θ1＝θ3，θ2＝θ4Namely, the beam angle formed by the left side matrix is equal to that formed by the right side matrix.
In the technical scheme, the plane launching matrix is sealed by the watertight glue layer 12 as shown in figure 3, and the shape of the plane launching matrix is conformal to the ship bottom in a plane mode.
The working principle of the invention is that the plane transmitting array consists of a left side array, a middle array and a right side array, the left side array consists of 3 linear arrays, the middle array consists of 2 linear arrays, the right side array consists of 3 linear arrays, the deflection angle of the left side array is the sum of the mechanical installation angle and the electric beam control deflection angle, the deflection angle of the right side array is the sum of the mechanical installation angle and the electric beam control deflection angle, the left side array, the middle array and the right side array adopt a frequency division working mode, the horizontal coverage angle of the whole plane transmitting array is the sum of the horizontal coverage angles of the left side array, the middle array and the right side array, and finally the horizontal wide coverage angle of the plane transmitting array is realized. The invention has the main advantages of simple planar emission array type, simple and reliable process and wide horizontal coverage angle.
(1) Array element a1-1, array element B1-2 and array element C1-3 are arranged in sequence on the left side of the matrix with reference to fig. 1.
(2) Referring to fig. 1, array element G3-1 and array element H3-2 are arranged in the middle of the matrix.
(3) Referring to fig. 1, an array element D2-1, an array element E2-2 and an array element F2-3 are arranged on the right side of a matrix in sequence.
(4) In FIG. 1, array element A1-1, array element B1-2, array element C1-3, array element G3-1, array element H3-2, array element D2-1, array element E2-2 and array element F2-3 are linear arrays formed by piezoelectric ceramic particles along the navigation direction.
(5) The left array, the middle array and the right array work in a frequency division mode, namely the three arrays work at different frequencies.
(6) The left-side base array formed by the array element A1-1, the array element B1-2 and the array element C1-3 has the natural directivity of 60 degrees.
(7) The natural directivity of the intermediate base array formed by the array element G3-1 and the array element H3-2 is 76 degrees.
(8) The natural directivity of a right-side base array formed by the array elements D2-1, E2-2 and F2-3 is 60 degrees
(9) The left basic array formed by the array element A1-1, the array element B1-2 and the array element C1-3 and the middle basic array formed by the array element G3-1 and the array element H3-2 are structurally arranged at an included angle of 25 degrees.
(10) The right-side basic array formed by the array elements D2-1, the array elements E2-2 and the array elements F2-3 and the middle basic array formed by the array elements G3-1 and the array elements H3-2 are structurally arranged with an included angle of 25 degrees.
(11) And (3) performing electric beam control deflection on a left-side basic array formed by the array element A1-1, the array element B1-2 and the array element C1-3, so that the leftward deflection angle of the beam angle of the array element A1-1, the array element B1-2 and the array element C1-3 is 25 degrees, and finally, the included angle of the left-side basic array acoustic radiation beam direction relative to the middle basic array acoustic radiation beam direction is 50 degrees.
(12) And (3) performing electric beam control deflection on a right-side basic array formed by the array elements D2-1, the array elements E2-2 and the array elements F2-3, so that the right deflection angle of the beam angle of the array elements D2-1, the array elements E2-2 and the array elements F2-3 is 25 degrees, and finally, the included angle of the right-side basic array acoustic radiation beam direction relative to the middle basic array acoustic radiation beam direction is 50 degrees.
(13) The coverage angle of the middle array is-35 degrees to +35 degrees, the coverage angle of the left array is-20 degrees to-80 degrees, and the coverage angle of the right array is +20 degrees to +80 degrees. The horizontal coverage angle of the planar emission array can reach 160 degrees.
(14) The plane emission array is sealed by the watertight glue line material as shown in figure 3, and the final shape is in a plane mode and is conformal with the ship bottom.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (8)
1. A planar transmitting array covered by wide angles in the horizontal direction is characterized in that: mainly comprises a left side array (1), a middle array (3) and a right side array (2) and is conformal with the ship bottom, wherein a left side plane (4) where the left side array (1) is located and the middle array areThe middle plane (6) of the inter-matrix (3) is at a certain included angle theta1The arrangement is that a right plane (5) where the right array (2) is located and a middle plane (6) where the middle array (3) is located form a certain included angle theta3The array is arranged, and the left base array (1), the middle base array (3) and the right base array (2) form a plurality of linear arrays by a plurality of array elements; the deflection angle of the left side array (1) is an installation angle theta1Angle theta of deflection with electric beam2The sum is that the deflection angle of the right side array (2) is the installation angle theta3Angle theta of deflection with electric beam4And the horizontal coverage angle of the whole planar emission array is the sum of the horizontal coverage angles of the left-side array (1), the middle array (3) and the right-side array (2), so that the horizontal wide coverage angle of the planar emission array is realized.
2. The horizontally wide-angle coverage planar transmit array of claim 1, wherein: the left-side base array (1) is composed of 3 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 3 linear arrays are composed of array elements A (1-1), array elements B (1-2) and array elements C (1-3).
3. The horizontally wide-angle coverage planar transmit array of claim 1, wherein: the middle base array (3) is composed of 2 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 2 linear arrays are composed of array elements G (3-1) and array elements H (3-2).
4. The horizontally wide-angle coverage planar transmit array of claim 1, wherein: the right-side base array (2) is composed of 3 linear arrays formed by piezoelectric ceramic particles along the navigation direction, wherein the 3 linear arrays are composed of array elements D (2-1), array elements E (2-2) and array elements F (2-3).
5. The horizontally wide-angle coverage planar transmit array of claim 1, wherein: the left-side array (1), the middle array (3) and the right-side array (2) adopt frequency division work, namely the three groups of arrays have different working frequencies.
6. The horizontally wide-angle coverage planar transmit array of claim 1, wherein: the planar emission array is sealed by a watertight glue layer (12).
7. The horizontally wide-angle coverage planar transmit array of claim 2, wherein: when the left side base array (1) formed by the array element A (1-1), the array element B (1-2) and the array element C (1-3) is subjected to electric beam control deflection, the beam angle of the array element A (1-1), the array element B (1-2) and the array element C (1-3) is deflected leftwards by theta2Finally, the included angle between the direction of the acoustic radiation wave beam of the left array (1) and the direction of the acoustic radiation wave beam of the middle array (3) is theta1+θ2。
8. The horizontally wide-angle coverage planar transmit array of claim 4, wherein: when the right side base array (2) formed by the array element D (2-1), the array element E (2-2) and the array element F (2-3) is subjected to electric beam control deflection, the beam angle of the array element D (2-1), the array element E (2-2) and the array element F (2-3) is deflected rightwards by theta4Finally, the included angle between the direction of the acoustic radiation wave beam of the right array (2) and the direction of the acoustic radiation wave beam of the middle array (3) is theta3+θ4。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070291589A1 (en) * | 2004-08-10 | 2007-12-20 | Furuno Electric Co., Ltd. | Forward-looking sonar and underwater image display system |
| US20110013485A1 (en) * | 2009-07-14 | 2011-01-20 | Navico, Inc. | Downscan imaging sonar |
| CN102176008A (en) * | 2010-12-22 | 2011-09-07 | 中国船舶重工集团公司第七一五研究所 | Phased azimuth filtering method for three-dimensional stratum imaging |
| CN102662166A (en) * | 2012-05-23 | 2012-09-12 | 北京信息科技大学 | Multimode broadband circular array transducer |
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- 2019-11-13 CN CN201911106697.XA patent/CN111044995A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070291589A1 (en) * | 2004-08-10 | 2007-12-20 | Furuno Electric Co., Ltd. | Forward-looking sonar and underwater image display system |
| US20110013485A1 (en) * | 2009-07-14 | 2011-01-20 | Navico, Inc. | Downscan imaging sonar |
| CN102176008A (en) * | 2010-12-22 | 2011-09-07 | 中国船舶重工集团公司第七一五研究所 | Phased azimuth filtering method for three-dimensional stratum imaging |
| CN102662166A (en) * | 2012-05-23 | 2012-09-12 | 北京信息科技大学 | Multimode broadband circular array transducer |
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Application publication date: 20200421 |