CN206413162U - A kind of underwater sound communication transducer - Google Patents
A kind of underwater sound communication transducer Download PDFInfo
- Publication number
- CN206413162U CN206413162U CN201621462523.9U CN201621462523U CN206413162U CN 206413162 U CN206413162 U CN 206413162U CN 201621462523 U CN201621462523 U CN 201621462523U CN 206413162 U CN206413162 U CN 206413162U
- Authority
- CN
- China
- Prior art keywords
- metal shell
- baffle
- structure part
- vibrational structure
- transducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Abstract
A kind of underwater sound communication transducer, including the vibrational structure part in metal shell, metal shell front opening, the back-end sealing of metal shell, the acoustic energy that vibrational structure part is produced outwards are propagated through metal shell front end；Provided with sound insulation section between vibrational structure part and the rear end of metal shell, play a part of being acoustically separated between vibrational structure part and metal shell；The outer ring of metal shell adds baffle, and baffle is close to the front end of metal shell, and baffle is used for the backward radiation for the acoustic energy diffraction formation for absorbing the generation of vibrational structure part.
Description
Technical field
The utility model is related to underwater sound communication, Underwater Detection technical field, and in particular to transducer.
Background technology
In fields such as underwater sound communication, Underwater Detections, the one side directive property to transducer requires higher.
At present, in order to realize the unidirectional directive property of transducer, generally using the pressure-resistant reverse sound material of low-density as baffle, install
At the rear of transducer, to block the backward acoustic radiation of transducer.This mode is larger to baffle scale requirement, and Split type structure increases
The difficulty at sea laying recovery is added, globality is poor.Although Antisoundbaffle can play certain rear radiation occlusion effect,
But influence of the Antisoundbaffle to main beam is also larger.The interface of inherently one secondary reflection of Antisoundbaffle, is underwater sound signal
Processing brings adverse effect.
Piston type transducer backward radiation Producing reason has 2, is respectively：The vibration of transducer metal shell causes backward
The generation of radiation；There is diffraction phenomena during transducer front shroud radiating surface radiated sound field, a big chunk energy radiated afterwards comes
From the backward diffraction that acoustic energy is radiated in front shroud.Wherein, the reality of piston type transducer, such as Application No. 200510107825.4
With a kind of piston type transducer disclosed in new patent.
Preferably unidirectional directional transducer can avoid influence of the interface secondary reflection to acoustical signal of going directly, and reduce signal
The complexity of processing.
Utility model content
The technical problem that the utility model is solved：How transducer vibrations structure member and transducer metal shell are realized
Isolating technique, and how to effectively reduce transducer diffraction formation backward radiation.
In order to solve the above technical problems, the utility model provides following technical scheme：A kind of underwater sound communication transducer, including
Vibrational structure part in metal shell, metal shell front opening, the back-end sealing of metal shell, vibrational structure portion
The acoustic energy that part is produced outwards is propagated through metal shell front end；Provided with sound insulation between vibrational structure part and the rear end of metal shell
Section, plays a part of being acoustically separated between vibrational structure part and metal shell；The outer ring of metal shell adds baffle, and baffle connects
The front end of nearly metal shell, baffle is used for the backward radiation for the acoustic energy diffraction formation for absorbing the generation of vibrational structure part.
In above-mentioned technical proposal, vibrational structure part constitutes the vibration sounding source of transducer, the acoustic energy in vibration sounding source
Outwards propagated through metal shell front opening, the acoustic energy outwards propagated is tapered, therefore transducer again may be used involved by the utility model
Referred to as big angle of release one side directional transducer.The acoustic energy blanking of vibration sounding source back-propagation is in sound insulation section, metal shell
The acoustic energy of vibration sounding source back-propagation is not received.
The vibrational structure part includes front shroud, ceramic stack, the back shroud fitted together successively by succession, institute
Sound insulation section is stated to be arranged between back shroud and metal shell.The front shroud abuts metal shell front opening, vibrational structure portion
Acoustic energy produced by part is after front shroud i.e. to one way propagation before transducer.The preferred piezoelectric ceramic stack of ceramic stack.
The sound insulation section selecting structure intensity is high, the nonmetallic materials that density is small, and the density of the sound insulation section is less than water
Density, i.e., the density of described nonmetallic materials is less than 1.Above-mentioned nonmetallic materials are processed into spy according to working frequency and acoustic velocity of material
Different sound insulation section, is supported between transducer back shroud and metal shell, just can be between vibrational structure part and metal shell
Play a part of being acoustically separated from.
The baffle is rubber baffle.
The baffle is made by sound-absorbing material.
The baffle is in hollow round table-like, and hollow space is used to be set in metal shell.
The front end of metal shell is provided with the gap of watertight rubber, watertight rubber seal front shroud and metal shell, wherein, water
It is close, in brief, waterproof, water proof, make water can not by or flow through.
The rear end of metal shell is provided with the electric connector being connected with vibrational structure part, and the electric connector is electrically connected for watertight
Connect device.
The utility model has the advantages that：By the setting of above-mentioned sound insulation section and baffle, realize big angle of release one side and refer to
The purpose of tropism transducer.Compared with the current existing big angle of release transducer of routine, after transducer described in the utility model
It is obviously reduced to radiation, solves the problems, such as that the secondary reflection in underwater sound communication and Underwater Detection involves many ways, greatly improve water
The performance of acoustic equipment.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of underwater sound communication transducer of the utility model；
Fig. 2 is Fig. 1 explosive view.
Symbol description in figure：
10th, metal shell；
20th, vibrational structure part；21st, front shroud；22nd, ceramic stack；23rd, back shroud；
30th, insulate against sound section；
40th, electric connector；
50th, watertight rubber；
60th, baffle.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of underwater sound communication transducer, including the vibrational structure part in metal shell 10
20, metal shell front opening, the back-end sealing of metal shell, the acoustic energy that vibrational structure part is produced is through metal shell front end
Outwards propagate.
The vibrational structure part 20 include fitted together successively by succession front shroud 21, ceramic stack 22, after
Cover plate 23.
The front end of metal shell 10 is provided with watertight rubber 50, watertight rubber seal metal shell front opening and front shroud 21
Gap.
Vibrational structure part 20 is fixedly connected by the section 30 that insulates against sound with metal shell 10, specifically, and the sound insulation section 30 is set
Put between back shroud and metal shell 10, play a part of being acoustically separated between vibrational structure part and metal shell.
The sound insulation section 30 selecting structure intensity is high, the nonmetallic materials that density is small, and the density of the nonmetallic materials is small
In the density of water.Or, the sound insulation section 30 selection silica gel material.
The outer ring of metal shell adds baffle 60, and baffle is close to the front end of metal shell, and baffle is used to absorb vibrational structure
The backward radiation for the acoustic energy diffraction formation that part is produced.
The baffle 60 in hollow round table-like, baffle 60 be with sound absorption can rubber baffle.Baffle can be by such as
Under type is arranged on metal shell 10：The hollow space of baffle opens up internal thread, and metal shell opens up external screw thread, and baffle is spirally connected
On metal shell, afterwards, be spirally connected a clamp nut again on metal shell, props up the end face of baffle, prevents baffle from loosening.Or
Person, the baffle is arranged on metal shell with non-dismountable connected mode, is such as welded.Or, the baffle and metal shell
It is integrally formed, such as casts, to improve the globality of transducer.
The rear end of metal shell 10 is provided with the water-tight electrical connector 40 being connected with vibrational structure part 20.
According to above-mentioned embodiment, 60 degree of the wave beam angle of release of transducer described in the utility model, after pointedly solving
Radiation has been suppressed to the 5% of main beam after radiation problem, transducer, can give play to preferable advantage in complicated marine site, be water
The underwater sound equipments such as sound communication, active sonar provide way solution more than optimal sound field.
Above content is only better embodiment of the present utility model, for one of ordinary skill in the art, according to this
The thought of utility model, will change in specific embodiments and applications, and this specification content should not be understood
For to limitation of the present utility model.
Claims (6)
1. a kind of underwater sound communication transducer, including the vibrational structure part (20) in metal shell (10), metal shell
Front opening, the back-end sealing of metal shell, the acoustic energy that vibrational structure part is produced outwards is propagated through metal shell front end；Its
It is characterised by：Provided with sound insulation section (30) between vibrational structure part and the rear end of metal shell, the outer ring of metal shell adds barrier
Plate (60), baffle is close to the front end of metal shell；
The vibrational structure part (20) include fitted together successively by succession front shroud (21), ceramic stack (22),
Back shroud (23), the sound insulation section (30) is arranged between back shroud and metal shell (10)；
Described sound insulation section (30) selecting structure intensity is high, the nonmetallic materials that density is small；
The density of the sound insulation section (30) is less than the density of water.
2. a kind of underwater sound communication transducer as claimed in claim 1, it is characterised in that：The baffle (60) is rubber baffle.
3. a kind of underwater sound communication transducer as claimed in claim 1, it is characterised in that：The baffle (60) is by sound-absorbing material system
Form.
4. a kind of underwater sound communication transducer as claimed in claim 1, it is characterised in that：The baffle (60) is in hollow round platform
Shape.
5. a kind of underwater sound communication transducer as claimed in claim 1, it is characterised in that：The front end of metal shell (10) is provided with water
Close rubber (50).
6. a kind of underwater sound communication transducer as claimed in claim 1, it is characterised in that：The rear end of metal shell (10) be provided with
The electric connector (40) of vibrational structure part (20) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462523.9U CN206413162U (en) | 2016-12-29 | 2016-12-29 | A kind of underwater sound communication transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462523.9U CN206413162U (en) | 2016-12-29 | 2016-12-29 | A kind of underwater sound communication transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206413162U true CN206413162U (en) | 2017-08-15 |
Family
ID=59552736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621462523.9U Active CN206413162U (en) | 2016-12-29 | 2016-12-29 | A kind of underwater sound communication transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206413162U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936796A (en) * | 2018-12-26 | 2019-06-25 | 中国船舶重工集团公司第七二六研究所 | Inhibit the baffle and its installation method of the acoustic radiation of cylindrical transducer axial direction |
| CN110006521A (en) * | 2019-04-03 | 2019-07-12 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Hydrophone mounting device |
-
2016
- 2016-12-29 CN CN201621462523.9U patent/CN206413162U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936796A (en) * | 2018-12-26 | 2019-06-25 | 中国船舶重工集团公司第七二六研究所 | Inhibit the baffle and its installation method of the acoustic radiation of cylindrical transducer axial direction |
| CN110006521A (en) * | 2019-04-03 | 2019-07-12 | 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) | Hydrophone mounting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102662166B (en) | Multimode broadband circular array transducer | |
| CN202662279U (en) | High-frequency underwater acoustic emission transducer | |
| CN104722469A (en) | Ultrasonic transducer and manufacturing method thereof | |
| CN206413162U (en) | A kind of underwater sound communication transducer | |
| CN109633614B (en) | Low-post-radiation high-frequency transducer linear array | |
| CN111487607A (en) | Underwater acoustic compact range testing system and method | |
| CN102843637A (en) | Cylindrical transducer with stacked piezoelectric circular tubes with different internal diameters | |
| CN206413164U (en) | A kind of one side directional transducer | |
| CN201589860U (en) | High frequency wideband underwater sound projector with low transient response | |
| CN110707791A (en) | Ultrasonic wave-based remote high-power underwater wireless charging system | |
| WO2022048058A1 (en) | High-power high-frequency directional transmission underwater acoustic transducer and manufacturing method therefor | |
| CN103945302A (en) | Active single-direction acoustic propagation device and method for realizing single-direction acoustic propagation | |
| CN106448644A (en) | Nondirectional broadband large-power Janus underwater acoustic transducer | |
| CN107465982B (en) | High-power deep water broadband transducer | |
| RU2647992C1 (en) | Deep-water broadband hydroacoustic transducer | |
| CN208911313U (en) | Ultrasonic transducer | |
| CN113359119B (en) | Side-scanning transducer based on circular arc piezoelectric composite material and preparation method thereof | |
| JPH041914B2 (en) | ||
| CN206380080U (en) | A kind of big angle of release one side directional transducer | |
| CN102866206A (en) | Ultrasonic concrete detection probe | |
| CN202939159U (en) | Ultrasonic concrete detector probe | |
| CN204288799U (en) | A kind of sound insulation of the compound for sonar array baffle | |
| CN112887874A (en) | Strong sound system based on full-band sound wave control | |
| CN108054275B (en) | Non-uniform-thickness matching layer piezoelectric vibrator and preparation method thereof | |
| WO2022048059A1 (en) | Acoustic wave-based full-sea-depth-covering undersea wireless charging method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |