CN113301477A - Array arrangement system of flextensional transducer - Google Patents
Array arrangement system of flextensional transducer Download PDFInfo
- Publication number
- CN113301477A CN113301477A CN202110426772.1A CN202110426772A CN113301477A CN 113301477 A CN113301477 A CN 113301477A CN 202110426772 A CN202110426772 A CN 202110426772A CN 113301477 A CN113301477 A CN 113301477A
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- cover plate
- transducer
- upper cover
- transducer group
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- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/121—Flextensional transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention provides an array arrangement system of a flextensional transducer, which comprises a bearing screw rod, closely-arranged transducer group mounting screws, a bearing screw rod matched nut, a bearing upper cover plate, a bearing lower cover plate and closely-arranged transducer groups. The cable leading-out ends of the densely arranged transducer groups are fixedly connected with the bearing upper cover plate through densely arranged transducer group mounting screws; the bearing screw rod is in threaded connection with the bearing lower cover plate; the bearing upper cover plate is connected with the bearing lower cover plate through a bearing screw rod; the lower end of the close-packed transducer group is contacted with the bearing lower cover plate, and the tightening of the close-packed transducer group is realized by pre-tightening a screw matched nut on the bearing upper cover plate and screwing the screw into the bearing screw. The invention can solve the problem of narrow working bandwidth of the III-type flextensional transducer, further reduce the working resonant frequency of the III-type flextensional transducer and realize the emission of low-frequency broadband high-power sound waves with smaller structural scale.
Description
Technical Field
The invention relates to the technical field of underwater sound detection and underwater speakers, in particular to an array distribution system of a flextensional transducer.
Background
The low frequency sound waves propagate underwater with a lower attenuation coefficient, so that the sound waves emitted by the low frequency transmitting transducer have a longer propagation distance at the same sound source level. The resonant frequency that a structure can produce is inversely related to the corresponding dimension of the structure, so that a lower frequency means that the structure has a larger dimension. Other types of transducers may also emit low frequency sound waves, but are bulky and heavy. And the excessively bulky underwater acoustic transducer brings great inconvenience in installation and use. Type iii flextensional transducers are classical small-sized low frequency transmitting transducers currently known to emit the lowest resonant frequency sound wave with a minimum aperture. The small-size low-frequency broadband high-power transmitting transducer is an ideal transducer for dreaming in the field of underwater sound detection. In the field of speakers, the broadband low-fluctuation low-frequency transducer can better restore human voice.
By adopting a proper arrangement mode, the advantage that the III type flextensional transducer emits low-frequency high-power sound waves in a small size can be amplified, the low-frequency sound waves can be emitted in a smaller size, the working bandwidth can be further widened, and the low-frequency emission capability can be improved. Improper deployment can reduce the advantages of type iii flextensional transducers, and proper deployment can achieve an effect of one plus one greater than two.
The same technology as the invention does not exist at present, and the similar method does not exist in documents and literatures.
Disclosure of Invention
In view of the shortcomings in the prior art, it is an object of the present invention to provide an array system for flextensional transducers.
The array arrangement system of the flextensional transducer provided by the invention comprises a bearing screw rod 1, a bearing screw rod matched nut 3, a bearing upper cover plate 4, a bearing lower cover plate 5 and a close-packed transducer group 6, wherein:
the densely arranged transducer group 6 is arranged between the bearing upper cover plate 4 and the bearing lower cover plate 5, and the cable leading-out end of the densely arranged transducer group 6 is fixedly arranged on the bearing upper cover plate 4;
the lower end of the close-packed transducer group 6 is contacted with the bearing lower cover plate 5;
the bearing upper cover plate 4 is connected with the bearing lower cover plate 5 through a bearing screw rod 1;
the densely arranged transducer group 6 is matched and tightened between the bearing upper cover plate 4 and the bearing lower cover plate 5 through the bearing screw rod 1.
Preferably, the transducer assembly structure further comprises close-packed transducer assembly mounting screws 2, and cable leading-out ends of the close-packed transducer assemblies 6 are fixedly connected with the bearing upper cover plate 4 through the close-packed transducer assembly mounting screws 2.
Preferably, a screw fixing hole is formed in the bearing upper cover plate 4, and the threaded end of the bearing screw 1 penetrates through the screw fixing hole and is in threaded connection with the screw matching nut 3, so that the connection of the bearing upper cover plate 4 and the bearing lower cover plate 5 is realized.
Preferably, the screw matching nut 3 is pre-screwed into the bearing screw 1, and the close-packed transducer group 6 is tightened between the bearing upper cover plate 4 and the bearing lower cover plate 5.
Preferably, the connection between the bearing screw rod 1 and the bearing lower cover plate 5 is a threaded connection.
Preferably, the elementary transducers of the close-packed transducer group 6 comprise flextensional type iii transducers.
Preferably, the number of the elementary transducers of the close-packed transducer group 6 is not less than 2.
Preferably, the elementary transducers of the close-packed transducer group 6 are distributed in close-packed mode, and the distance between adjacent elementary transducers is less than 1 time of wavelength, wherein the wavelength is the acoustic wavelength corresponding to the underwater resonant frequency of the elementary transducers.
Preferably, the bearing upper cover plate 4 is provided with a cable leading-out through hole and a densely arranged transducer group mounting threaded through hole arranged on the periphery of the cable leading-out through hole, and the densely arranged transducer group 6 is provided with a mounting threaded hole matched with the densely arranged transducer group mounting threaded through hole.
Preferably, the upper bearing cover plate 4 and the lower bearing cover plate 5 are made of antirust materials.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has the advantages of ingenious structure, reasonable design and convenient assembly and disassembly.
2. The invention can further reduce the resonant frequency of the III-type flextensional transducer, broaden the low-frequency working bandwidth of the III-type flextensional transducer and realize the emission of low-frequency broadband high-power sound waves with smaller structural scale.
3. The method provided by the invention has the advantages of small volume, light weight under water, simple manufacture and lower cost.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Figure 2 is a top view of the load bearing upper deck of the present invention.
Figure 3 is a top view of the load bearing lower deck of the present invention.
FIG. 4 is a schematic diagram of the arrangement of closely spaced transducer groups of the present invention.
Fig. 5 is a sequence diagram of an embodiment of the present invention.
FIG. 6 is a graph of experimental test data for one embodiment.
The figures show that:
bearing screw 1
Densely arranged transducer group mounting screw 2
Supporting nut 3 of bearing screw rod
Outer hexagonal nuts 301, 302, 303
Bearing upper cover plate 4
Cable leading-out through holes 40101, 40102 and 40103
Through holes 40201, 40202, 40203 for leading out bearing screw
Closely-spaced transducer group mounting threaded through holes 4030101, 4030102, 4030103, 4030201, 4030202, 4030203, 4030301, 4030302, 4030303
Bearing lower cover plate 5
Bearing screw thread blind holes 501, 502 and 503
Closely spaced transducer groups 6
Type III flextensional transducers 601, 602, 603
Mounting threaded holes 60101, 60102, 60103, 60201, 60202, 60203, 60301, 60302 and 60303 for cables 7
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 to 4, the flextensional transducer arraying system provided by the present invention includes a bearing screw 1, closely-arranged transducer group mounting screws 2, a bearing screw matching nut 3, a bearing upper cover plate 4, a bearing lower cover plate 5 and closely-arranged transducer groups 6. The upper end of the cable leading-out end of the close-packed transducer group 6 is fixedly connected with the bearing upper cover plate 4 through close-packed transducer group mounting screws 2; the bearing screw rod 1 is in threaded connection with the bearing lower cover plate 5. And the bearing upper cover plate 4 is connected with the bearing lower cover plate 5 through a bearing screw rod 1. The opposite surface of the cable leading-out end at the lower end of the close-packed transducer group 6 is contacted with the bearing lower cover plate 5, and the tightening of the close-packed transducer group is realized by pre-tightening a screw rod matching nut 3 on the bearing upper cover plate 4 and screwing the screw rod into the bearing screw rod 1. In this embodiment, the method includes: 3 bearing screws 101, 102, 103, 9 screws 201, 202, 203, as shown in fig. 1, each serial number containing 3 screws. Three nuts 301, 302, 303, a load bearing upper cover plate 4, a load bearing lower cover plate 5, 3 type iii flextensional transducers 601, 602, 603.
Further, the three bearing screws 101, 102, 103 have a diameter of 10mm and a length of 365mm, and have M10 threads of 10mm at each end to secure the upper and lower bearing cover plates. 316L stainless steel is adopted. The 9 closely-spaced transducer group mounting screws 201, 202, 203 are socket head cap screws of M5. The three nuts 301, 302, 303 are M10 national standard first type hexagon nuts. The radius of the bearing upper cover plate 4 is 100mm, the thickness is 10mm, the radius of the bearing lower cover plate 5 is 100mm, the thickness is 10mm, and 5A03 antirust aluminum is adopted. The bearing upper cover plate 4 is provided with cable leading-out through holes 40101, 40102 and 40103, bearing screw leading-out through holes 40201, 40202 and 40203, and closely-arranged transducer group mounting threaded through holes 4030101, 4030102, 4030103, 4030201, 4030202, 4030203, 4030301, 4030302 and 4030303. The diameter of the cable leading-out holes 40101, 40102 and 40103 is 20mm, and the cable leading-out holes are uniformly distributed on a graduated circle which has the radius of 80mm and is concentric with the bearing upper cover plate. The bearing screw leading-out holes 40201, 40202 and 40203 are phi 11mm through holes which are uniformly distributed on a reference circle with the circle center of the bearing upper cover plate as the circle center and the diameter of 160 mm. The close-packed transducer group mounting threaded holes 4030101, 4030102, 4030103, 4030201, 4030202, 4030203, 4030301, 4030302 and 4030303 are through holes of M5, and the close-packed transducer group is positioned and fixed on the upper bearing cover plate through the threaded through holes. The threaded through holes are uniformly distributed around the center of the corresponding cable leading-out hole by taking the center of the center as the center, and the diameter of the uniformly distributed reference circle is 80 mm. The transducers 601, 602, 603 form a close-packed array in the shape of a Chinese character pin. The surfaces of the upper cover plate and the lower cover plate of the III-type flextensional transducer are tangent pairwise. The mounting threaded holes 60101, 60102, 60103, 60201, 60202, 60203, 60301, 60302 and 60303 on the transducer are matched with the positions of the mounting threaded through holes of the closely-spaced transducer group formed in the bearing upper cover plate 4, and the depth of the mounting threaded holes is 7 mm.
Furthermore, in the III-type flextensional transducer array design provided by the invention, the close-packed mode of the close-packed transducer group is three-element inverted T-shaped array. The individual transducers were 90mm in diameter and 340mm in height. The number of the bearing screw rods is 3, and the outline shapes of the bearing upper cover plate and the bearing lower cover plate are circular. The radius of the circle is 100 mm. The thickness of the upper bearing cover plate is 10 mm. The height of the bearing screw is the height of the transducer plus the thickness of the bearing upper cover plate and the bearing lower cover plate plus 5 mm. The two ends of the bearing screw rod are respectively provided with M10 threads with the length of 10 mm. The bearing upper cover plate is provided with 3 cable leading-out holes uniformly distributed on the graduated circle. The reference circle is concentric with the upper bearing cover plate. The diameter of the cable outlet hole is 20 mm. And 3 transducer fixing and mounting holes uniformly distributed on a reference circle concentric with the cable leading-out hole are formed around the cable leading-out hole, and the diameter of the reference circle is 0.8 times of that of the transducer. The mounting hole is a threaded through hole of size M5, 10mm long. The transducer is fixedly connected with the upper bearing cover plate through 3M 5 screws. The bearing lower cover plate is provided with 3M 10 threaded blind holes, the depth of the blind holes is 6mm, and the 3 blind holes are uniformly distributed on the graduated circle. The upper and lower bearing cover plates are made of antirust aluminum materials, and the bearing screw is made of stainless steel materials. The mounting screw of the close-packed transducer group is a stainless steel inner hexagon screw of M5. The bearing screw rod is matched with a nut made of M10 stainless steel.
The bearing screw rod is in threaded connection with the bearing lower cover plate, and a threaded hole is formed in the bearing lower cover plate. The lower cover plate is provided with threaded blind holes which are uniformly distributed on a reference circle concentric with the bearing lower cover plate; the size of the reference circle is 0.7-0.9 times of the size of the bearing lower cover plate; the bearing upper cover plate is provided with a cable leading-out hole; the cable leading-out hole is concentric with the upper cover plate of the transducer; the diameter of the cable leading-out hole is 1.1-1.3 times of the diameter of the cable; the periphery of the cable leading-out hole is provided with a threaded hole for fixedly mounting the densely-arranged transducer group; the transducer group is fixedly provided with threaded holes which are uniformly distributed on a reference circle concentric with the cable leading-out hole, and the diameter of the reference circle is 0.5-0.9 times of the diameter of the transducer; the bearing upper cover plate is provided with through holes through which the bearing screw rods pass, and the through holes are uniformly distributed on a graduated circle concentric with the bearing upper cover plate. The diameter of the reference circle of the upper bearing cover plate is required to be consistent with that of the reference circle corresponding to the threaded hole of the lower bearing cover plate, the center of the through hole is concentric with the threaded blind hole of the lower cover plate, and the diameter of the through hole is 0.2-2 mm larger than that of the bearing screw; the bearing upper cover plate and the bearing lower cover plate are made of antirust aluminum or stainless steel; the bearing screw rod, the transducer group mounting screw and the bearing screw rod matched nut are all made of stainless steel.
The basic elements of the transducer group are closely arranged, and the distance between the basic elements is less than 1 time of wavelength (acoustic wave wavelength corresponding to the underwater resonance frequency of the basic elements), or obvious mutual radiation influence exists or the basic elements and the basic elements have obvious mutual influence when working. The obvious mutual radiation influence among the elements of the close-packed transducer group 6 and the obvious mutual influence among the elements in working are characterized in that the Sv curve (emission voltage response curve) or SL curve (sound source level curve) of the close-packed transducer group 6 after the arrangement mode is adopted is compared with the Sv curve or SL curve of the element transducer per se and is changed as follows: the working resonant frequency of a is reduced, and the working frequency band of b is widened (-3dB working bandwidth or-6 dB working bandwidth or low-frequency Sv value or SL value is increased).
The number of close-packed transducer group 6 primitive transducers may be 2 or some other number greater than 2. The primitive transducers are relatively independent in structure, and any one or more primitive transducers can be conveniently dismounted and replaced, so that the maintenance and the repair are simple, convenient and quick. The elementary transducers are relatively independent in function, a small fraction of the elementary transducers are deactivated and the group of closely-spaced transducers can still be used.
Fig. 5 is a specific assembly sequence of the present invention. As shown in fig. 5, the bearing screws 101, 102, 103 are first screwed into the corresponding blind threaded holes 501, 502, 503 of the lower bearing cover plate, then the transducers 601, 602, 603 are first placed on the lower bearing cover plate 4, then the upper bearing cover plate 4 is covered, so that 3 cables contained in the cable 7 simultaneously pass through the cable lead-out holes 401, 402, 403, and ensure that the bearing screws 101, 102, 103 also pass through the bearing screw lead-out holes 40201, 40202, 40203, then M10 nuts 301, 302, 303 are preliminarily screwed on the upper ends of the bearing screws 101, 102, 103, then the transducers 601, 602, 603 are respectively adjusted so that the threaded holes 60101, 60102, 60103, 60201, 60202, 60203, 60301, 60302, 60303 on each transducer are screwed into the corresponding mounting holes 4030101, 4030102, 4030103, 4030201, 4030202, 4030203, 4030301, 4030302, 4030303 on each upper cover plate, and then the M5 is tightened to fix the transducer positions, finally, the M10 nuts 301, 302, 303 are tightened.
FIG. 6 is experimental test data for one example. The specific effects of the present invention are apparent from the figures.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. The utility model provides a straggling system of flextensional transducer which characterized in that, apron (5) and close-packed transducer group (6) under bearing screw rod (1), the supporting nut of bearing screw rod (3), bearing upper cover plate (4), the bearing, wherein:
the densely arranged transducer groups (6) are arranged between the bearing upper cover plate (4) and the bearing lower cover plate (5), and cable leading-out ends of the densely arranged transducer groups (6) are fixedly arranged on the bearing upper cover plate (4);
the lower end of the close-packed transducer group (6) is contacted with the bearing lower cover plate (5);
the bearing upper cover plate (4) is connected with the bearing lower cover plate (5) through a bearing screw rod (1);
the densely arranged transducer group (6) is tightened between the bearing upper cover plate (4) and the bearing lower cover plate (5) through the matching of the bearing screw rod (1).
2. The flextensional transducer arraying system according to claim 1, further comprising closely-arranged transducer group mounting screws (2), wherein the cable leading-out ends of the closely-arranged transducer group (6) are fixedly connected with the bearing upper cover plate (4) through the closely-arranged transducer group mounting screws (2).
3. The flextensional transducer arraying system according to claim 1, wherein the bearing upper cover plate (4) is provided with screw fixing holes, and the threaded end of the bearing screw (1) passes through the screw fixing holes and is in threaded connection with the screw matching nut (3) to realize the connection of the bearing upper cover plate (4) and the bearing lower cover plate (5).
4. The flextensional transducer arraying system according to claim 3, wherein the screw-mating nut (3) is pre-screwed into the bearing screw (1), and the closely-spaced transducer group (6) is tightened between the bearing upper cover plate (4) and the bearing lower cover plate (5).
5. The flextensional transducer arraying system according to claim 1, wherein the connection of the bearing screw (1) and the bearing lower cover plate (5) is a threaded connection.
6. The flextensional transducer arraying system according to claim 1, characterized in that the elementary transducers of the close-packed transducer group (6) comprise type iii flextensional transducers.
7. The flextensional transducer arraying system according to claim 1, characterized in that the number of elementary transducers of the close-packed transducer group (6) is not less than 2.
8. The flextensional transducer array system according to claim 1, wherein the elementary transducers of the close-packed transducer group (6) are close-packed, the distance between adjacent elementary transducers is less than 1 wavelength, and the wavelength is the acoustic wavelength corresponding to the underwater resonance frequency of the elementary transducers.
9. The flextensional transducer array arrangement system according to claim 1, wherein the bearing upper cover plate (4) is provided with cable leading-out through holes and densely arranged transducer group mounting threaded through holes arranged at the periphery of the cable leading-out through holes, and the densely arranged transducer group (6) is provided with mounting threaded holes matched with the densely arranged transducer group mounting threaded through holes.
10. The flextensional transducer arraying system according to claim 1, wherein the load-bearing upper cover plate (4) and the load-bearing lower cover plate (5) are made of antirust materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426772.1A CN113301477B (en) | 2021-04-20 | 2021-04-20 | Array arrangement system of flextensional transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110426772.1A CN113301477B (en) | 2021-04-20 | 2021-04-20 | Array arrangement system of flextensional transducer |
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| Publication Number | Publication Date |
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| CN113301477A true CN113301477A (en) | 2021-08-24 |
| CN113301477B CN113301477B (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110426772.1A Active CN113301477B (en) | 2021-04-20 | 2021-04-20 | Array arrangement system of flextensional transducer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5508976A (en) * | 1994-12-02 | 1996-04-16 | Loral Defense Systems | Low frequency underwater acoustic transducer |
| CN101964185A (en) * | 2010-09-03 | 2011-02-02 | 哈尔滨工程大学 | Ultra-wideband underwater acoustic transducer |
| CN103175601A (en) * | 2012-12-21 | 2013-06-26 | 中国船舶重工集团公司第七一五研究所 | High-frequency closely-spaced piezoelectric film hydrophone array and production method thereof |
| CN109949785A (en) * | 2019-02-25 | 2019-06-28 | 中国船舶重工集团公司第七二六研究所 | Tow line array based on III type flextensional transducer is at battle array structure |
| CN110580893A (en) * | 2019-09-29 | 2019-12-17 | 西北工业大学 | Cascade piezoelectric ceramic underwater acoustic transducer |
| CN111935594A (en) * | 2020-07-14 | 2020-11-13 | 中国船舶重工集团公司第七一五研究所 | Low-frequency broadband high-efficiency array forming structure based on curved disk transducer |
-
2021
- 2021-04-20 CN CN202110426772.1A patent/CN113301477B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5508976A (en) * | 1994-12-02 | 1996-04-16 | Loral Defense Systems | Low frequency underwater acoustic transducer |
| CN101964185A (en) * | 2010-09-03 | 2011-02-02 | 哈尔滨工程大学 | Ultra-wideband underwater acoustic transducer |
| CN103175601A (en) * | 2012-12-21 | 2013-06-26 | 中国船舶重工集团公司第七一五研究所 | High-frequency closely-spaced piezoelectric film hydrophone array and production method thereof |
| CN109949785A (en) * | 2019-02-25 | 2019-06-28 | 中国船舶重工集团公司第七二六研究所 | Tow line array based on III type flextensional transducer is at battle array structure |
| CN110580893A (en) * | 2019-09-29 | 2019-12-17 | 西北工业大学 | Cascade piezoelectric ceramic underwater acoustic transducer |
| CN111935594A (en) * | 2020-07-14 | 2020-11-13 | 中国船舶重工集团公司第七一五研究所 | Low-frequency broadband high-efficiency array forming structure based on curved disk transducer |
Non-Patent Citations (1)
| Title |
|---|
| 尚宇航等: "Ⅲ型弯张换能器设计研制", 《压电与声光》 * |
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|---|---|
| CN113301477B (en) | 2023-03-14 |
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