CN206132211U - Device is listened to hydrophone and water - Google Patents
Device is listened to hydrophone and water Download PDFInfo
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- CN206132211U CN206132211U CN201621033628.2U CN201621033628U CN206132211U CN 206132211 U CN206132211 U CN 206132211U CN 201621033628 U CN201621033628 U CN 201621033628U CN 206132211 U CN206132211 U CN 206132211U
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- hydrophone
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Abstract
The utility model provides a device is listened to hydrophone and water. Wherein, the hydrophone includes: at least one strip transducing wafer, shell, first entrant sound gasket, second entrant sound gasket and wire, shell are the tubular structure, and at least one strip transducing wafer is established to outer shell, and shell one end is established to first entrant sound gasket cover, and the shell other end is established to second entrant sound gasket cover, and strip transducing wafer both ends all link to each other through wire and external load. First entrant sound gasket and second entrant sound gasket all are used for keeping apart every strip transducing wafer with outside to with aquatic sound signal transmission to every strip transducing wafer, every strip transducing wafer all is used for receiving the acoustical signal of first entrant sound gasket input and the acoustical signal of its other end receipt second entrant sound gasket input through the one of which termination to arrive external load with sound signal conversion for electric output. The acoustical signal is received to strip transducing wafer both ends homoenergetic to the receive frequency scope has effectively been increased.
Description
Technical field
The utility model belongs to hydrophone technical field, and in particular to a kind of hydrophone and water device for tone frequencies.
Background technology
With the continuous development and progress of science and technology, the application technology of hydrophone is also developing progressively ripe.Hydrophone by
Pressure change under water can be produced acoustical signal in it and be converted to electric signal such that it is able to reliably obtain pressure under water
Power, and then obtained relatively broad application.In prior art, hydrophone is mostly piezoceramic material or composite system
Into spherical and tube-shaped structure hydrophone.But at present the hydrophone made by piezoceramic material causes it due to its structure
The wave-length coverage that voice signal can be received is narrow, so as to seriously reduce the receiving sensitivity and the measurement essence to pressure of hydrophone
Degree.Furthermore, because the acoustic impedance of the vertical and horizontal of piezoceramic material is far above aqueous medium, this allows for most of sound in water
Field energy reflects in the interface of water and ceramic contact, and then also reduces the receiving sensitivity of hydrophone and the survey to pressure
Accuracy of measurement.At the same time, in the prior art, the hydrophone made by composite, although can be sufficiently large by arranging
Capacitance, to reach higher receiving sensitivity and the certainty of measurement to pressure.But larger capacitance causes hydrophone to need
Make larger size.Because its volume is excessive, the portability and applicability for using has been had a strong impact on.Therefore, how by skill
The improvement of art, can enable the hydrophone of miniature or medium-sized volume with higher receiving sensitivity and the measurement essence to pressure
Degree is current industry a great problem.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of hydrophone and water device for tone frequencies, effectively to improve micro-
The receiving sensitivity of the hydrophone of type or medium-sized volume and the certainty of measurement to pressure.
What embodiment of the present utility model was realized in：
First aspect the utility model embodiment provides a kind of hydrophone, including：It is at least one strip transducing chip, outer
Shell, the first entrant sound diaphragm seal, the second entrant sound diaphragm seal and wire, the shell is tubular structure, and the shell is arranged at least one
The individual strip transducing chip, the first entrant sound diaphragm seal is arranged one end of the shell, the second entrant sound diaphragm seal set
If the other end of the shell, the two ends of strip transducing chip are connected by wire with external loading described at least one.Institute
State the first entrant sound diaphragm seal and the second entrant sound diaphragm seal be used to by each strip transducing chip and external environment condition every
From, and the acoustical signal in water is transferred to into each described strip transducing chip.Each described strip transducing chip is used to pass through
Its one end receives the acoustical signal and its other end of the first entrant sound diaphragm seal input and receives the second entrant sound diaphragm seal
The acoustical signal of input, and the acoustical signal is converted to into electric signal output to the external loading.
Further, the strip transducing chip can be for multiple, one end of each strip transducing chip and adjacent
The strip transducing chip one end connection, the other end of each strip transducing chip and the adjacent strip transducing
The other end connection of chip.
Further, each described strip transducing chip includes：Lead zinc niobate-lead titanates, PMN-PT,
Lead magnesio-niobate-lead zirconate titanate, lead niobate lead indate-lead-PMN-PT or its compositions derived therefrom relaxor ferroelectric monocrystal are made.
Further, each described strip transducing chip is transverse mode lead based relaxor single-chip, the transverse mode
For the polarization of [011] crystal orientation, the driving of [100] or [0-11] crystal orientation.
Further, the shell includes：Acoustic damping shell and containment vessel, the acoustic damping shell and the containment vessel it is equal
For tubular structure, the acoustic damping shell is arranged each described strip transducing chip, and the containment vessel is arranged outside the acoustic damping
Shell.
Further, the acoustic damping shell and the containment vessel are tubular structure.
Second aspect the utility model embodiment additionally provides a kind of water device for tone frequencies, including：Body, multiple cavitys and many
Individual hydrophone；Each described cavity runs through the body, and each described cavity is respectively provided with angle with the adjacent cavity, often
The individual hydrophone may be contained within the cavity.
Further, the shape size of each cavity is matched with the shape size of the hydrophone.
Further, the body be column structure, each described cavity be set in turn in the body one end and
Between the other end of the body, each described cavity has angle with the adjacent cavity.
Further, one end of each hydrophone couples with one end of the adjacent hydrophone.
The beneficial effect of the utility model embodiment is：By the tubular structure of shell, shell just can be arranged at least one
Strip transducing chip.One end of shell is arranged by the first entrant sound diaphragm seal, and again shell is arranged by the second entrant sound diaphragm seal
The other end, and the two ends of strip transducing chip are connected by wire with external loading.It is achieved thereby that by transducing chip
Under water seal while and external loading also achieve coupling.
First entrant sound diaphragm seal and the second entrant sound diaphragm seal are by by each described strip transducing chip and external environment condition
Isolation, and the acoustical signal in water is transferred to into each strip transducing chip.Each strip transducing chip just can pass through one
End receives the acoustical signal that the acoustical signal and its other end of the first entrant sound diaphragm seal input receives the input of the second entrant sound diaphragm seal, and will
Acoustical signal is converted to electric signal output to external loading.And external loading passes through to calculate the pressure value corresponding to the electric signal, just
Pressure measured in water can accurately be obtained.Because strip transducing chip is arranged by shell in hydrophone, and shell is
Tubular structure, so as to the two ends of strip transducing chip are the free ends do not closed by shell.Due to strip transducing chip
Two ends freedom, so as to the two ends of strip transducing chip can receive acoustical signal, by rational size design, makes the bar of hydrophone
Shape transducing chip can be received in the way of half-wavelength to acoustical signal.Due to the reception mode of its half-wavelength, can effectively increase
The big frequency range that it is received, and the piezoelectric chip for adopting has the horizontal piezoelectric modulus and and water higher than conventional piezoelectric ceramics
The closer acoustic impedance features present of medium, so as to greatly improve hydrophone receiving sensitivity and the certainty of measurement to pressure.Due to
It is the change of reception mode harmony sensing element mode of operation such that it is able to which the water for effectively improving miniature or medium-sized volume is listened
The receiving sensitivity of device and the certainty of measurement to pressure.
Other feature and advantage of the present utility model will illustrate in subsequent specification, also, partly from specification
Become apparent, or understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
Realize and obtain by specifically noted structure in the specification, claims and accompanying drawing write.
Description of the drawings
In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for the accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
A part of embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can be with basis
These accompanying drawings obtain other accompanying drawings.By the way that shown in accompanying drawing, above and other purpose of the present utility model, feature and advantage will more
Plus it is clear.Identical reference indicates identical part in whole accompanying drawings.Not deliberately by actual size equal proportion scaling
Draw accompanying drawing, it is preferred that emphasis is purport of the present utility model is shown.
Fig. 1 shows a kind of sectional view of the first embodiment of hydrophone that the utility model embodiment is provided；
Fig. 2 shows a kind of sectional view of the second embodiment of hydrophone that the utility model embodiment is provided；
Fig. 3 shows a kind of structural representation of the first embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure；
Fig. 4 shows a kind of structural representation of the second embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure；
Fig. 5 shows a kind of structural representation of the 3rd embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure；
Fig. 6 shows a kind of structural representation of the 4th embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure；
Fig. 7 shows a kind of structural representation of the 5th embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure；
Fig. 8 shows a kind of structural representation of the 6th embodiment of water device for tone frequencies that the utility model embodiment is provided
Figure.
Icon：100- hydrophones；110- strip transducing chips；120- shells；121- acoustic damping shells；122- containment vessels；
130- the first entrant sound diaphragm seals；140- the second entrant sound diaphragm seals；150- wires；200- water device for tone frequencies；210- bodies；220- is empty
Chamber.
Specific embodiment
It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than the embodiment of whole.Generally described in accompanying drawing herein and
The component of the utility model embodiment for illustrating can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.
In description of the present utility model, it should be noted that term " top ", " bottom ", " side ", " interior ", " outward " etc. are indicated
Orientation or position relationship be that, based on orientation shown in the drawings or position relationship, or the utility model product is usual when using
The orientation put or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new restriction.Additionally, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying phase
To importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Fig. 1 is referred to, the utility model embodiment provides a kind of hydrophone 100, and hydrophone 100 includes：Strip transducing
Chip 110, shell 120, the first entrant sound diaphragm seal 130, the second entrant sound diaphragm seal 140 and wire 150.
In the present embodiment, hydrophone 100 can be horizontal mode of operation, so as to strip transducing chip 110 can be by：
Lead zinc niobate-lead titanates (PZN-PT), PMN-PT (PMN-PT), lead magnesio-niobate-lead zirconate titanate (PMN-PZT), niobium
Indium lead plumbate-PMN-PT (PIN-PMN-PT) or its be derivatized to the column structure graded made by relaxation ferro-electricity single crystal.
Due to lead zinc niobate-lead titanates (PZN-PT), PMN-PT (PMN-PT), lead magnesio-niobate-lead zirconate titanate (PMN-
PZT), the material such as lead niobate lead indate-lead-PMN-PT (PIN-PMN-PT) has high horizontal piezoelectric constant, such as
The horizontal piezoelectric constant d32 ≈ of PZN-PT-(3000～4000) pC/N, horizontal piezoelectric constant d31 ≈ 1100pC/N.And this
The acoustic impedance of PZN-PT is about 7MRayls, and the acoustic impedance of the acoustic impedance and water is closer to.Therefore, above-mentioned material is especially suitable for
The transducing chip of the hydrophone 100 of the horizontal mode of operation of high receiving sensitivity is made, and passes through the bar made by above-mentioned material
Shape transducing chip 110 can have higher sensitivity.
Used as a kind of mode, strip transducing chip 110 can be at least one.If hydrophone 100 is miniature hydrophone
100, its strip transducing chip 110 just can be one；If but hydrophone 100 be medium-sized hydrophone 100, its its strip transducing
Chip 110 just can be multiple.In the present embodiment, can be according to needed for the different of actually used demand be flexibly adapted to actual demand
Transducing number of wafers.
Alternatively, when hydrophone 100 is used in shallow water area, strip transducing chip 110 can be work
Make mode and polarize for [011] crystal orientation, and passing through (100) face carries out the transverse mode lead based relaxor single-chip of acoustical signal sensing, from
And make hydrophone 100 that can there is the high sensitivity of measurement acoustical signal in shallow water area.And work as hydrophone 100 is carried out in deep-sea domain
When using, strip transducing chip 110 can be the polarization of [011] crystal orientation for working method, and passing through (0-11) face carries out acoustical signal
The transverse mode lead based relaxor single-chip of sensing, so as to ensure hydrophone 100 in the case of job stability in the domain of deep-sea also
With the high sensitivity to acoustical signal measurement.It should be noted that (100) face can be the two ends of strip transducing chip 110, and
(0-11) face can be the side wall of strip transducing chip 110.
Shell 120 includes：Acoustic damping shell 121 and containment vessel 122, acoustic damping shell 121 and containment vessel 122 can be
Tubular structure.Acoustic damping shell 121 can be arranged strip transducing chip 110, and enable the two ends position of strip transducing chip 110
At the opening at the two ends of acoustic damping shell 121.The shape size of the internal diameter of acoustic damping shell 121 and the shape of strip transducing chip 110
Shape size is matched, so as to acoustic damping shell 121 just can closely be arranged strip transducing chip 110.Optionally, acoustic damping shell
121 can be made up of the elastomeric material of acoustic damping.After by acoustic damping shell 121 strip transducing chip 110 is arranged, acoustic damping
Shell 121 has completely cut off acoustical signal.The two ends that acoustical signal in water just can only be arranged from strip transducing chip 110 are input into, from
And the two ends of strip transducing chip 110 just can be respectively formed the free end for receiving acoustical signal, and then strip transducing chip 110 just can
It is enough that acoustical signal is received in the way of half-wavelength.As a kind of mode, when the quantity of strip transducing chip 110 is multiple, each
One end connection of one end of strip transducing chip 110 and adjacent strip transducing chip 110, and each strip transducing chip 110
The other end and adjacent strip transducing chip 110 other end connection so that each strip transducing chip 110 is arranged side by side
Put.Acoustic damping shell 121 is again arranged the strip transducing chip 110 of multiple discharges arranged side by side.
The internal diameter size of containment vessel 122 and the shape size matching of acoustic damping shell 121, so as to containment vessel 122 just can
By being arranged acoustic damping shell 121 again, so that protection can be formed to acoustic damping shell 121 and strip transducing chip 110, and can
Isolation acoustic damping shell 121 and contact of the strip transducing chip 110 with water.Because the two ends of containment vessel 122 are respectively provided with opening, from
And need to close one end of containment vessel 122 by the first entrant sound diaphragm seal 130, and again will by the second entrant sound diaphragm seal 140
The other end closing of containment vessel 122, and then form totally enclosed structure.The shape size of the first entrant sound diaphragm seal 130 and protection
The shape size matching of the one end open of shell 122.So as to by the first edge of entrant sound diaphragm seal 130 and opening for the one end of containment vessel 122
Mouth is fixedly connected, and the first entrant sound diaphragm seal 130 just can seal the opening of the one end of containment vessel 122.Second entrant sound diaphragm seal 140
Shape size and another end opening of containment vessel 122 shape size matching.So as to by the edge of the second entrant sound diaphragm seal 140 and
The opening of the other end of containment vessel 122 is fixedly connected, and the second entrant sound diaphragm seal 140 just can be by the opening of the other end of containment vessel 122
Sealing.To be protected by one end closing of containment vessel 122 and again by the second entrant sound diaphragm seal 140 by the first entrant sound diaphragm seal 130
The other end closing of protective case 122, hydrophone 100 just can form totally enclosed structure, so as to completely cut off with water.Due to acoustical signal
Transmission can be through the first entrant sound diaphragm seal 130 and the second entrant sound diaphragm seal 140, so as to the acoustical signal in water just can be by the
One entrant sound diaphragm seal 130 and the second entrant sound diaphragm seal 140 are input into respectively the two ends of strip transducing chip 110.Strip transducing chip 110
The acoustical signal just can be converted to corresponding electric signal by two ends by being respectively received acoustical signal.
Fig. 1 and Fig. 2 is referred to, in the first embodiment of the present embodiment, strip transducing chip 110 is one, strip
The two ends of transducing chip 110 are coupled by wire 150 and external loading.In the second embodiment of the present embodiment, strip
Transducing chip 110 is multiple strip transducing chips 110 that are multiple, then discharging side by side, and electricity is carried out in parallel or serial fashion
Connection, then the load coupling for passing through wire 150 and outside.The two ends of strip transducing chip 110 pass through the coupling with wire 150,
Just the electric signal of its own corresponding acoustical signal changed can be exported external loading by wire 150.External loading leads to
Cross calculate and the electric signal corresponding to pressure values, just can obtain the pressure values in the water detected by hydrophone 100.Need
It is noted that wire 150 is by being each passed through the first entrant sound diaphragm seal 130 and the second entrant sound diaphragm seal 140 and strip transducing
Chip 110 is coupled, so as to the first entrant sound diaphragm seal 130 and the second entrant sound diaphragm seal 140 are equipped with the bore institute with wire 150
The through hole matched somebody with somebody, and then wire 150 is by being each passed through the through hole and the second entrant sound diaphragm seal 140 of the first entrant sound diaphragm seal 130
After through hole is coupled with strip transducing chip 110, due to its bore matching, hydrophone 100 is maintained to the shape for fully sealing
State.
Fig. 3 is referred to, the utility model embodiment also provides a kind of water device for tone frequencies 200.Water device for tone frequencies 200 includes：Body
210th, cavity 220 and hydrophone 100.Used as a kind of mode, the cavity 220 in water device for tone frequencies 200 can be multiple, and and cavity
220 corresponding hydrophones 100 can also be multiple.So as to by the measurement of multiple hydrophones 100, further increase measurement
Precision.Equal and hydrophone 100 the shape size matching of the shape size of each cavity 220, so as to each equal energy of hydrophone 100
In being enough arranged at cavity 220.Multiple hydrophones 100 pass through serial or parallel connection to realize coupling each other.And each is empty
Body 210 is run through in chamber 220, to ensure that the two ends of hydrophone 100 can receive voice signal.Each cavity 220 with it is adjacent
Cavity 220 be respectively provided with angle, so as to water device for tone frequencies 200 just can realize the measurement of the voice signal of multiple directions, by comprehensive
The voice signal measured by process multiple directions is closed, and then the certainty of measurement of water device for tone frequencies 200 can also be improved.
As shown in figure 3, Fig. 3 shows that embodiment provides a kind of first embodiment of water device for tone frequencies 200.Body 210 can
Think cylinder, the quantity of cavity 220 is two, the quantity of corresponding hydrophone 100 is also two.Each cavity 220 is equal
It is arranged between the top of body 210 and bottom, the direction that two cavitys 220 are run through is orthogonal, and two cavitys 220 are run through
Direction it is parallel with the top and bottom of body 210 respectively.Each hydrophone 100 may be contained within corresponding cavity 220, from
And water device for tone frequencies 200 just can realize the measurement of the voice signal to mutually orthogonal both direction.
As shown in figure 4, Fig. 4 shows that embodiment provides a kind of second embodiment of water device for tone frequencies 200.Body 210 can
Think cylinder, the quantity of cavity 220 is three, the quantity of corresponding hydrophone 100 is also three.Each cavity 220 is equal
Be arranged between the top of body 210 and bottom, direction that each cavity 220 is run through and adjacent cavities 220 through direction
Form 60 ° of angle, and the direction that three cavitys 220 are run through is parallel with the top and bottom of body 210 respectively.Each water is listened
Device 100 may be contained within corresponding cavity 220, so as to water device for tone frequencies 200 just can realize to mutually form 60 ° of angles three
The measurement of the voice signal in individual direction.
As shown in figure 5, Fig. 5 shows that embodiment provides a kind of 3rd embodiment of water device for tone frequencies 200.Body 210 can
Think cylinder, the quantity of cavity 220 is six, the quantity of corresponding hydrophone 100 is also six.Each cavity 220 is equal
Be arranged between the top of body 210 and bottom, direction that each cavity 220 is run through and adjacent cavities 220 through direction
Form orthogonal, and the direction that six cavitys 220 are run through is parallel with the top and bottom of body 210 respectively.Each hydrophone 100
In may be contained within corresponding cavity 220, water device for tone frequencies 200 just can not only realize the sound to mutually orthogonal both direction
The measurement of signal.Because the vertical direction that is arranged on of six cavitys 220 has certain gradient, so as to water device for tone frequencies 200 can also
It is enough to realize to measuring to acoustical signal in the way of with gradient, and then certainty of measurement is improved again.
As shown in fig. 6, Fig. 6 shows that embodiment provides a kind of 4th embodiment of water device for tone frequencies 200.Body 210 can
Think the cylinder of annular, and three parts at the edge of the cylinder of annular are stretched out by top to bottom and form three protrusions
Portion.Three protuberances of connection just can form equilateral triangle.The quantity of cavity 220 is three, and each cavity 220 is respectively provided with
In a protuberance, and through the protuberance.So as to each cavity 220 can form 60 ° of folder with adjacent cavity 220
Angle, and three cavitys 220 are respectively positioned on same level.Each hydrophone 100 may be contained within corresponding cavity 220, so as to
Water device for tone frequencies 200 just can realize the measurement of the voice signal in three directions to mutually forming 60 ° of angles in same plane.
As shown in fig. 7, Fig. 7 shows that embodiment provides a kind of 5th embodiment of water device for tone frequencies 200.Body 210 can
Think the cylinder of annular, and four parts at the edge of the cylinder of annular are stretched out by top to bottom and form four protrusions
Portion.Four protuberances of connection just can form rectangle.The quantity of cavity 220 is 12, and each three cavity 220 is arranged at
One protuberance roof between diapire, and through the protuberance.So as to each cavity 220 can be with the sky of remaining protuberance
The shape of chamber 220 angle in 90 °.Each hydrophone 100 may be contained within corresponding cavity 220, and water device for tone frequencies 200 can not only
Realize the measurement to mutually forming the voice signal of the four direction of 90 ° of angles in same plane.Due in a protuberance
Three cavitys 220 are arranged on vertical direction and have certain gradient, so as to water device for tone frequencies 200 can also be realized to each side
To acoustical signal carry out gradiometry, and then improve certainty of measurement again.
As shown in figure 8, Fig. 8 shows that embodiment provides a kind of 6th embodiment of water device for tone frequencies 200.Body 210 can
Think the cylinder of cylinder, the quantity of cavity 220 can be two, the quantity of corresponding hydrophone 100 is also two.In this reality
In applying mode, hydrophone 100 is the medium-sized hydrophone 100 being made up of multiple transducing chips.Each cavity 220 is arranged at body
Between 210 top and bottom, direction that each cavity 220 is run through and adjacent cavities 220 form orthogonal through direction, and
The direction that two cavitys 220 are run through is parallel with the top and bottom of body 210 respectively.Each hydrophone 100 may be contained within institute
In corresponding cavity 220, water device for tone frequencies 200 just can realize the measurement of the voice signal to mutually orthogonal both direction.From
And make the water device for tone frequencies 200 being made up of multiple medium-sized hydrophones 100 that also there is high certainty of measurement.
In sum, the utility model provides a kind of hydrophone 100 and water device for tone frequencies 200.By the tubulose of shell 120
Structure, shell 120 just can be arranged at least one strip transducing chip 110.Shell 120 is arranged by the first entrant sound diaphragm seal 130
One end, and again the other end of shell 120 is arranged by the second entrant sound diaphragm seal 140, and by by least one strip transducing
The two ends of chip 110 are coupled by wire 150 and external loading.So as to just realize by transducing chip seal under water it is same
When and external loading also achieve coupling.
First entrant sound diaphragm seal 130 and the second entrant sound diaphragm seal 140 are by by each He of strip transducing chip 110
External environment condition is isolated, and the acoustical signal in water is transferred to into each strip transducing chip 110.Each strip transducing chip 110 is just
The acoustical signal and its other end that input of the first entrant sound diaphragm seal 130 can be received by its one end receives the second entrant sound diaphragm seal
The acoustical signal of 140 inputs, and acoustical signal is converted to into electric signal output to external loading.And external loading is by calculating the telecommunications
Pressure value corresponding to number, just can accurately obtain pressure measured in water.Due to strip transducing chip in hydrophone 100
110 are arranged by shell 120, and shell 120 is tubular structure, so as to the two ends of strip transducing chip 110 are not by shell
120 free ends closed.Due to the two ends freedom of strip transducing chip 110, so as to the equal energy in two ends of strip transducing chip 110
Acoustical signal is received, and then the strip transducing chip 110 of hydrophone 100 can be received in the way of half-wavelength to acoustical signal.
Due to the reception mode of its half-wavelength, can effectively increase the frequency range of its reception, and the piezoelectric chip 110 for adopting has than normal
With the higher horizontal piezoelectric modulus of piezoelectric ceramics and with the closer acoustic impedance features present of aqueous medium, so as to greatly improve hydrophone
100 receiving sensitivities and the certainty of measurement to pressure.Due to the change that it is reception mode harmony sensing element mode of operation, from
And can effectively improve the receiving sensitivity and the certainty of measurement to pressure of the hydrophone 100 of miniature or medium-sized volume.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of hydrophone, it is characterised in that include：At least one strip transducing chip, shell, the first entrant sound diaphragm seal,
Two entrant sound diaphragm seals and wire, the shell is tubular structure, and the shell is arranged strip transducing chip described at least one, institute
One end that the first entrant sound diaphragm seal is arranged the shell is stated, the second entrant sound diaphragm seal is arranged the other end of the shell, extremely
The two ends of a few strip transducing chip are coupled by wire and external loading；
The first entrant sound diaphragm seal and the second entrant sound diaphragm seal are used to each strip transducing chip and outside
It is environmentally isolated, and the acoustical signal in water is transferred to into each described strip transducing chip；
Each described strip transducing chip is used to receive the sound letter of the first entrant sound diaphragm seal input by its one end
Number and its other end receive the acoustical signal of the second entrant sound diaphragm seal input, and the acoustical signal is converted to into electric signal
Export the external loading.
2. hydrophone according to claim 1, it is characterised in that the strip transducing chip is multiple, each described bar
One end of shape transducing chip and the adjacent strip transducing chip one end connection, each strip transducing chip it is another
The other end of end and the adjacent strip transducing chip connects.
3. hydrophone according to claim 2, it is characterised in that each described strip transducing chip includes：Niobium zincic acid
Lead-lead titanates, PMN-PT, lead magnesio-niobate-lead zirconate titanate, lead niobate lead indate-lead-PMN-PT or it is derivative
Component relaxor ferroelectric monocrystal is made.
4. hydrophone according to claim 2, it is characterised in that each described strip transducing chip is transverse mode lead
Base relaxed single crystal piece, the transverse mode is the polarization of [011] crystal orientation, and [100] or [0-11] crystal orientation drives.
5. hydrophone according to claim 1, it is characterised in that the shell includes：Acoustic damping shell and containment vessel, institute
State acoustic damping shell and the containment vessel be tubular structure, the acoustic damping shell is arranged each described strip transducing chip,
The containment vessel is arranged the acoustic damping shell.
6. hydrophone according to claim 5, it is characterised in that the acoustic damping shell and the containment vessel are tubulose
Structure.
7. a kind of water device for tone frequencies, it is characterised in that include：Body, multiple cavitys and multiple such as any one of claim 1-6 institute
The hydrophone stated；Each described cavity runs through the body, and each described cavity is respectively provided with angle with the adjacent cavity,
Each described hydrophone may be contained within the cavity.
8. water device for tone frequencies according to claim 7, it is characterised in that the shape size of each cavity is and the water
The shape size for listening device is matched.
9. water device for tone frequencies according to claim 7, it is characterised in that the body is column structure, each described cavity
It is set in turn between the other end of one end of the body and the body, each described cavity and the adjacent cavity
With angle.
10. water device for tone frequencies according to claim 7, it is characterised in that one end of each hydrophone with it is adjacent
One end coupling of the hydrophone.
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| CN201621033628.2U CN206132211U (en) | 2016-08-31 | 2016-08-31 | Device is listened to hydrophone and water |
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| CN201621033628.2U CN206132211U (en) | 2016-08-31 | 2016-08-31 | Device is listened to hydrophone and water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404158A (en) * | 2016-08-31 | 2017-02-15 | 北京越音速科技有限公司 | Hydrophone, transduction method and hydrophone device |
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2016
- 2016-08-31 CN CN201621033628.2U patent/CN206132211U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404158A (en) * | 2016-08-31 | 2017-02-15 | 北京越音速科技有限公司 | Hydrophone, transduction method and hydrophone device |
| WO2018041238A1 (en) * | 2016-08-31 | 2018-03-08 | Beijing Supersonic Technology Co., Ltd. | Hydrophone, transduction method, and compound hydrophone |
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