CN104811879A - Multi-piezoelectric-ceramic-stack excitation deepwater broadband energy converter - Google Patents
Multi-piezoelectric-ceramic-stack excitation deepwater broadband energy converter Download PDFInfo
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- CN104811879A CN104811879A CN201410033314.1A CN201410033314A CN104811879A CN 104811879 A CN104811879 A CN 104811879A CN 201410033314 A CN201410033314 A CN 201410033314A CN 104811879 A CN104811879 A CN 104811879A
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Abstract
The invention relates to a multi-piezoelectric-ceramic-stack excitation deepwater broadband energy converter. The multi-piezoelectric-ceramic-stack excitation deepwater broadband energy converter comprises multiple piezoelectric ceramic stacks, a lower tubular end cap, pre-stress screw rod and an upper tubular end cap, wherein any one piezoelectric ceramic stack is installed between the lower tubular end cap and the upper tubular end cap through the pre-stress screw rod, and the multiple piezoelectric ceramic stacks are connected in parallel; and an interval is reserved between the top end of the lower tubular end cap and the bottom end of the upper tubular end cap. According to the invention, by use of multi-modal vibration of the piezoelectric stacks, an upper end plate and a lower end plate, large-broadband emission of the energy converter is realized, by use of the 33 work mode of the multiple piezoelectric stacks, the problems of quite large emission and reduced response which are brought by the anti-phase problem due to radial vibration of a circular pipe structure are reduced, and large-power emission is obtained.
Description
Technical field
The present invention relates to underwater sound communication, detection, ocean deepwater research field, particularly, the present invention relates to a kind of many piezoelectric ceramic stack excitation deepwater wideband transducers.
Background technology
21 century is century of ocean, and underwater acoustic transducer is the important means of understanding ocean, is all widely used in underwater sound communication, detection, ocean deepwater research field.Current each Large Marine Ecosystem resource country is unprecedented to the attention of marine resources and maritime territory, and DOT becomes focus, and this just requires that underwater acoustic transducer can work under deep water conditions.This has higher requirement to the performance of underwater acoustic transducer.
Traditional deepwater wideband piezoelectric circular transducer adopts open flow structure, the transducer of this kind of structure adopts radial vibration and the vibration of inner sap cavity, to realize broadband, because radial vibration exists inside and outside inversion issue, the transmitting voltage response of transducer decreases.
Summary of the invention
The object of the invention is to overcome the underwater acoustic transducer of the prior art problem that inside and outside inversion issue causes transmitting response greatly to reduce when dark underwater operation, thus a kind of deep water, the wide-band transducer that can obtain larger transmitting voltage response are provided.
To achieve these goals, the invention provides a kind of many piezoelectric ceramic stack excitation deepwater wideband transducers, comprise piezoelectric ceramic stack 1, lower tubular end cap 2, prestressing force screw rod 3 and upper tubular end cap 4; Wherein,
Described piezoelectric ceramic stack 1 has multiple, and arbitrary piezoelectric ceramic stack 1 is arranged between described lower tubular end cap 2 and upper tubular end cap 4 by prestressing force screw rod 3, is connected in parallel between described multiple piezoelectric ceramic stack 1; The top of described lower tubular end cap 2 and upper tubular end cap 4 bottom between leave spacing.
In technique scheme, also comprise elasticity entrant sound chamber 5 and compliance pipe 6; Wherein, described elasticity entrant sound chamber 5 is positioned at outside the piezoelectric ceramic stack 1 installed, lower tubular end cap 2, prestressing force screw rod 3, upper tubular end cap 4, installs described compliance pipe 6 within it.
In technique scheme, the outer water sealed layer being arranged with waterproof of described piezoelectric ceramic stack 1; Described water sealed layer adopts polyurethane adhesive or vulcanized rubber to make, and is filled with the electric insulation material comprising castor oil in water sealed layer.
In technique scheme, inside, described elasticity entrant sound chamber 5 is full of the electric insulation material comprising castor oil, silicone oil, and the material of inside, described elasticity entrant sound chamber 5 forms watertight structure together with described elasticity entrant sound chamber 5.
In technique scheme, the centre position of described lower tubular end cap 2, upper tubular end cap 4 has circular hole.
In technique scheme, the number of described piezoelectric ceramic stack 1 is between 4-12.
In technique scheme, described in one, a prestressing force screw rod 3 is installed in the center of piezoelectric ceramic stack 1.
In technique scheme, described in one, the surrounding of piezoelectric ceramic stack 1 evenly installs multiple prestressing force screw rod 3 '.
The invention has the advantages that:
Transducer of the present invention is the class pipe overflow transducer that many piezoelectric ceramic stacks and perforate end cap are formed, utilize the multiple modal vibrations of its piezoelectric pile and upper and lower cover plates, achieve the large broadband emission of transducer, utilize 33 mode of operations of multiple pressure pile, and the problem reduced because larger transmitting response that the inversion issue of circular tube structure radial vibration brings reduces, obtain powerful transmitting.
Accompanying drawing explanation
Fig. 1 is many piezoelectric ceramic stack excitation deepwater wideband transducers of the present invention structural representations in one embodiment;
Fig. 2 is many piezoelectric ceramic stack excitation deepwater wideband transducers of the present invention structural representations in another embodiment;
Fig. 3 is a kind of mode of many piezoelectric ceramic stack excitation deepwater wideband transducer Shi Hanzhang of the present invention;
Fig. 4 is many piezoelectric ceramic stack excitation deepwater wideband transducer transmitting voltage response figure of the present invention.
Accompanying drawing identifies
1 piezoelectric ceramic stack 2 times tubular end cap
3 prestressing force screw rod 3 ' prestressing force screw rods
Tubular end cap 5 elasticity entrant sound chamber on 4
6 compliance pipes
Embodiment
Now the invention will be further described by reference to the accompanying drawings.
With reference to figure 1, in one embodiment, many piezoelectric ceramic stack excitation deepwater wideband transducers of the present invention comprise: piezoelectric ceramic stack 1, lower tubular end cap 2, prestressing force screw rod 3 and upper tubular end cap 4.Wherein, described piezoelectric ceramic stack 1 has multiple, and arbitrary piezoelectric ceramic stack 1 is arranged between described lower tubular end cap 2 and upper tubular end cap 4 by a prestressing force screw rod 3, is connected in parallel between described multiple piezoelectric ceramic stack 1; The top of described lower tubular end cap 2 and upper tubular end cap 4 bottom between leave spacing.
Below all parts in this transducer is described further.
Described piezoelectric ceramic stack 1 can adopt PZT-4 or the PZT-8 piezoelectric ceramic of polarization to realize.
The outer water sealed layer being arranged with waterproof of described piezoelectric ceramic stack 1.Described water sealed layer can adopt polyurethane adhesive or vulcanized rubber to make, and can fill castor-oil plant wet goods electric insulation matter in water sealed layer.Described electric insulation mass-energy enough plays electric insulation, heat radiation, pressure balanced effect.
In the embodiment shown in fig. 1, the number of described piezoelectric ceramic stack 1 is 6, and these piezoelectric ceramic stacks 1 are same circumferentially even, symmetrical.In other embodiments, the number of described piezoelectric ceramic stack 1 is between 4-12, and these piezoelectric ceramic stacks 1 also should same circumferentially even, symmetrical.
Be connected in parallel between described multiple piezoelectric ceramic stack 1 and refer to that the positive pole of each piezoelectric ceramic stack is connected with positive pole, negative pole is connected with negative pole.
In the present embodiment, the centre position of described lower tubular end cap 2, upper tubular end cap 4 has circular hole, and in other alternative-embodiments, both also can not perforate, but can have a certain impact to sound field performance.
Described lower tubular end cap 2, upper tubular end cap 4 can adopt antirust duralumin to realize.
Described prestressing force screw rod 3 is rigidly connected with lower tubular end cap 2, upper tubular end cap 4 respectively, and described prestressing force screw rod 3 can adopt stainless steel to realize.
With reference to figure 2, in another embodiment, many piezoelectric ceramic stack excitation deepwater wideband transducers of the present invention also comprise: elasticity entrant sound chamber 5 and compliance pipe 6; Wherein, described elasticity entrant sound chamber 5 is positioned at outside the piezoelectric ceramic stack 1 installed, lower tubular end cap 2, prestressing force screw rod 3, upper tubular end cap 4, can install compliance pipe 6 within it.
Waterproof action can be played in described elasticity entrant sound chamber 5.In the present embodiment, the overcoat of described piezoelectric ceramic stack 1 can not do watertight process, but is full of in inside, elasticity entrant sound chamber 5 the electric insulation material comprising castor oil, silicone oil, and the liquid of inside, elasticity entrant sound chamber 5 forms watertight structure together with elasticity entrant sound chamber 5.So both can keep same pressure with periphery water, again can not under high pressure short circuit.
Described compliance pipe 6 is inclose structures that air is filled in a kind of inside, and it is positioned in the liquid of inside, elasticity entrant sound chamber 5, utilize it to have transmitting response performance that certain resistance to pressure and compressibility can improve transducer.
In the embodiment shown in fig. 1, described prestressing force screw rod 3 is positioned at the inside of piezoelectric ceramic stack 1, namely the piezoelectric ceramic stack in this embodiment adopts center bolt Shi Hanzhang, in other embodiments, as shown in Figure 3, can at the surrounding prestressed screw rod 3 ' of piezoelectric ceramic stack 1, the surrounding of each piezoelectric ceramic stack 1 can install 4-6 prestressing force screw rod 3 '.
Fig. 4 is the transmitting voltage response figure of many piezoelectric ceramic stack excitation deepwater wideband transducers of the present invention, and this figure reflects the acoustic performance of transducer of the present invention, showing that this kind of structure is when meeting deep water work, can obtain broadband, powerful acoustic performance.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (8)
1. the excitation of piezoelectric ceramic stack more than a deepwater wideband transducer, is characterized in that, comprise piezoelectric ceramic stack (1), lower tubular end cap (2), prestressing force screw rod (3) and upper tubular end cap (4); Wherein,
Described piezoelectric ceramic stack (1) has multiple, and arbitrary piezoelectric ceramic stack (1) is arranged between described lower tubular end cap (2) and upper tubular end cap (4) by prestressing force screw rod (3), is connected in parallel between described multiple piezoelectric ceramic stack (1); The top of described lower tubular end cap (2) and upper tubular end cap (4) bottom between leave spacing.
2. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1, is characterized in that, also comprise elasticity entrant sound chamber (5) and compliance pipe (6); Wherein, described elasticity entrant sound chamber (5) be positioned at install piezoelectric ceramic stack (1), lower tubular end cap (2), prestressing force screw rod (3), outside upper tubular end cap (4), described compliance pipe (6) is installed within it.
3. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1, is characterized in that, the outer water sealed layer being arranged with waterproof of described piezoelectric ceramic stack (1); Described water sealed layer adopts polyurethane adhesive or vulcanized rubber to make, and is filled with the electric insulation material comprising castor oil in water sealed layer.
4. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 2, it is characterized in that, described elasticity entrant sound chamber (5) inside is full of the electric insulation material comprising castor oil, silicone oil, and the material that described elasticity entrant sound chamber (5) is inner forms watertight structure together with described elasticity entrant sound chamber (5).
5. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1 and 2, it is characterized in that, the centre position of described lower tubular end cap (2), upper tubular end cap (4) has circular hole.
6. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1 and 2, it is characterized in that, the number of described piezoelectric ceramic stack (1) is between 4-12.
7. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1, it is characterized in that, described in one, a prestressing force screw rod (3) is installed in the center of piezoelectric ceramic stack (1).
8. many piezoelectric ceramic stack excitation deepwater wideband transducers according to claim 1, it is characterized in that, described in one, the surrounding of piezoelectric ceramic stack (1) evenly installs multiple prestressing force screw rod (3 ').
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| CN201410033314.1A CN104811879B (en) | 2014-01-23 | 2014-01-23 | A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters |
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| CN201410033314.1A CN104811879B (en) | 2014-01-23 | 2014-01-23 | A kind of more piezoelectric ceramic stack excitation deepwater wideband energy converters |
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| CN104811879B CN104811879B (en) | 2018-07-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481336A (en) * | 2016-10-31 | 2017-03-08 | 重庆博创声远科技有限公司 | Soic wave transmitting energy converter and its drill collar mounting structure |
| CN106644043A (en) * | 2016-12-14 | 2017-05-10 | 中国船舶重工集团公司第七0研究所 | Torpedo modular embedded type cylindrical conformal acoustic base array |
| WO2017176209A1 (en) * | 2016-04-07 | 2017-10-12 | Microfine Materials Technologies Pte Ltd | Displacement connectors of high bending stiffness and piezoelectric actuators made of such |
| EP3507794A4 (en) * | 2016-08-31 | 2019-08-21 | Beijing Supersonic Technology Co., Ltd. | Piezoelectric actuator and low frequency underwater projector |
| CN113333864A (en) * | 2021-06-08 | 2021-09-03 | 北京航空航天大学 | Multi-mode ultrasonic vibration auxiliary machining device and method |
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178894A (en) * | 2006-11-10 | 2008-05-14 | 中国科学院声学研究所 | Double resonant vibrations and double promptings longitudinal vibration transducer |
| CN102097093A (en) * | 2010-11-26 | 2011-06-15 | 中国科学院声学研究所 | Deepwater wideband spherical transducer |
| CN103021396A (en) * | 2012-12-17 | 2013-04-03 | 中国船舶重工集团公司第七一五研究所 | Deep-water broadband transducer with ultralow backward radiation |
-
2014
- 2014-01-23 CN CN201410033314.1A patent/CN104811879B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178894A (en) * | 2006-11-10 | 2008-05-14 | 中国科学院声学研究所 | Double resonant vibrations and double promptings longitudinal vibration transducer |
| CN102097093A (en) * | 2010-11-26 | 2011-06-15 | 中国科学院声学研究所 | Deepwater wideband spherical transducer |
| CN103021396A (en) * | 2012-12-17 | 2013-04-03 | 中国船舶重工集团公司第七一五研究所 | Deep-water broadband transducer with ultralow backward radiation |
Non-Patent Citations (1)
| Title |
|---|
| 张振雨: "多谐振腔宽带换能器研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017176209A1 (en) * | 2016-04-07 | 2017-10-12 | Microfine Materials Technologies Pte Ltd | Displacement connectors of high bending stiffness and piezoelectric actuators made of such |
| CN109075250A (en) * | 2016-04-07 | 2018-12-21 | 晶致材料科技私人有限公司 | The displacement connector of high bending stiffness and the piezoelectric actuator made of the displacement connector |
| CN109075250B (en) * | 2016-04-07 | 2023-04-04 | 晶致材料科技私人有限公司 | High bending rigidity displacement connector and piezoelectric actuator made of the same |
| EP3507794A4 (en) * | 2016-08-31 | 2019-08-21 | Beijing Supersonic Technology Co., Ltd. | Piezoelectric actuator and low frequency underwater projector |
| CN106481336A (en) * | 2016-10-31 | 2017-03-08 | 重庆博创声远科技有限公司 | Soic wave transmitting energy converter and its drill collar mounting structure |
| CN106481336B (en) * | 2016-10-31 | 2023-08-11 | 重庆博创声远科技有限公司 | Acoustic wave transmitting transducer and drill collar mounting structure thereof |
| CN106644043A (en) * | 2016-12-14 | 2017-05-10 | 中国船舶重工集团公司第七0研究所 | Torpedo modular embedded type cylindrical conformal acoustic base array |
| CN113333864A (en) * | 2021-06-08 | 2021-09-03 | 北京航空航天大学 | Multi-mode ultrasonic vibration auxiliary machining device and method |
| CN113634474A (en) * | 2021-08-24 | 2021-11-12 | 深圳市特力威科技有限公司 | Multi-dimensional ultrasonic vibration head and machine tool with same |
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| CN104811879B (en) | 2018-07-03 |
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