CN104835486B - A kind of fluid injection frequency modulation transducer - Google Patents
A kind of fluid injection frequency modulation transducer Download PDFInfo
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- CN104835486B CN104835486B CN201510230196.8A CN201510230196A CN104835486B CN 104835486 B CN104835486 B CN 104835486B CN 201510230196 A CN201510230196 A CN 201510230196A CN 104835486 B CN104835486 B CN 104835486B
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- frequency modulation
- fluid injection
- phasitron
- transducer
- chamber
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Abstract
The invention discloses a kind of fluid injection frequency modulation transducer, the fluid injection frequency modulation transducer includes fluid injection phasitron, and the fluid injection phasitron includes frequency modulation chamber, and the frequency modulation chamber is used to hold liquid；The fluid injection phasitron can send the sound of certain frequency when colliding with other objects, in the case where the material and size of the frequency modulation chamber are fixed, the fluid injection frequency modulation transducer by varying frequency modulation intracavitary fills the species mode of liquid and/or change frequency modulation intracavitary fill liquid number mode carry out frequency modulation.The present invention can directly be driven using energy by ocean current, and realized under conditions of existing machinery structure is not changed and audible frequency is continuously adjusted, and principle is novel, easy to manufacture, compact-sized, it is easy to accomplish, there is important engineering application value.
Description
Technical field
The invention belongs to utilization of new energy resources and transducer designs field, and in particular to a kind of to tap realization by machinery
And the mechanism of frequency modulation is realized using Wetted modes fluid injection.
Background technology
Research of the people to modern marine acoustics starts from Switzerland physicist Ke Ladong in 1826 and French mathematician this figure plan
The experiment of the velocity of sound in the measurement water of Geneva Lake expansion.1911, someone carried out initially underwater by the use of bomb as sound source
Reflection sounding is tested, and successfully recorded the echo in seabed.It can be said that the sound source of bomb blast, which is people, applies earliest water
Lower sound source.In recent years, with continuous extension of the mankind's activity field to ocean, people according to different requirements to underwater sound source into
Row is extensive to be used.All use underwater sound source in the fields such as deep-sea geology detecting, offshore oil drilling, Underwater Target Detection.Not only
In this way, underwater sound source also widely applies to military field, such as underwater clearance and underwater sound interference confrontation etc..
At present, main underwater sound source producing method mainly has following 6 kinds：Explosive charge sound source, electroacoustic transducer sound source,
Parameter array sound source, hydrokinetic type sound source, laser sound source and plasma sound source.But main underwater sound source producing method
There is following deficiency：Sound source has Sound transmission loss in seal cavity；Machine driving, energy loss are big；Extra power is needed to hold
Could sounding in water for a long time in the case of continuous supply.
Existing mechanical transducer is to realize frequency conversion by varying shape, size, material of sounding body etc., also
It is to say to need to process the complicated of multiple sounding body structures or processing, it is higher that it adjusts audible frequency trouble, cost, and
Technically it is difficult to realize continuous frequency conversion.Therefore, study it is a kind of realize the method for frequency conversion not by varying sounding body structure, have
Important engineering application value.
The content of the invention
It is an object of the present invention to provide a kind of method of efficient adjustment structure audible frequency, by being noted into structure
Enter not same amount and different types of liquid to change the method for the audible frequency of fluid injection phasitron, realize mechanical sounding and set
Standby high efficiency, low cost and audible frequency continuously adjust.
The present invention provides a kind of fluid injection frequency modulation transducer, the fluid injection frequency modulation transducer includes fluid injection phasitron, described
Fluid injection phasitron includes frequency modulation chamber, and the frequency modulation chamber is used to hold liquid；The fluid injection phasitron is touched with other objects
The sound of certain frequency can be sent when hitting, in the case where the material and size of the frequency modulation chamber are fixed, the fluid injection frequency modulation
Transducer by varying frequency modulation intracavitary fill liquid species mode and/or change frequency modulation intracavitary fill liquid number mode
To carry out frequency modulation.
Fluid injection frequency modulation transducer of the present invention, directly provides power using energy by ocean current, passes through the pressure of liquid injection pipe both sides
Difference driving pivoted arm rotation, makes mutually to tap sounding between liquid injection pipe, and can change sounding by adjusting the water in liquid injection pipe
Frequency, therefore, the present invention have following significant advantage：
1) by adjusting how much reservoir quantity in liquid injection pipe changes audible frequency, the continuous of audible frequency can be conveniently realized
Adjust；
2) change of fluid injection species, can obtain different tuning ranges and frequency modulation precision；
3) simple, install convenient is realized in movement, can be according to the structure for being actually needed customized different frequency sections, easy to engineering
Practical application；
4) sound-producing device (including sounding body) is placed directly within sounding in seawater, eliminates energy damage when sound passes through wall
Lose, be more advantageous to the transmission of sound.
Brief description of the drawings
Fig. 1 is the frequency modulation Contrast on effect of injection variety classes liquid (kerosene, water, carbon tetrachloride)；
Fig. 2 (1) is steel, aluminium, the frequency modulation effect contrast figure of copper first natural frequency；
Fig. 2 (2) is steel, aluminium, the frequency modulation effect contrast figure of copper second-order intrinsic frequency；
Fig. 2 (3) is steel, aluminium, the frequency modulation effect contrast figure of the 3rd rank intrinsic frequency of copper；
Fig. 3 is a kind of profile of fluid injection phasitron of one embodiment of the invention；
Wherein：7 be dismountable push rod；8 be head cover；9 be frequency modulation chamber；10 be piston；11 be bottom seal plug；12 be bottom
Lid；13 be the first hole；14 be the second hole；
Fig. 4 is a kind of stereogram of fluid injection frequency modulation transducer of one embodiment of the invention；
Wherein：1 is set square；2 be shaft；3 be pipe；4 be pivoted arm；5 be fluid injection phasitron；6 be bearing；
Fig. 5 is a kind of top view of fluid injection frequency modulation transducer of one embodiment of the invention；
Wherein, 15 be the hole for installing pipe；16 be the hole of installation shaft；17 be the 3rd hole.
Embodiment
In a basic embodiment, the present invention provides fluid injection frequency modulation transducer described in a kind of fluid injection frequency modulation transducer
Comprising fluid injection phasitron, the fluid injection phasitron includes frequency modulation chamber, and the frequency modulation chamber is used to hold liquid；The fluid injection phasitron
The sound of certain frequency can be sent when colliding with other objects, in the fixed feelings of the material and size of the frequency modulation chamber
Under condition, the fluid injection frequency modulation transducer fills the species mode of liquid by varying frequency modulation intracavitary and/or changes frequency modulation intracavitary institute
Dress liquid number mode carry out frequency modulation.
In this embodiment, by being collided using the fluid injection phasitron with other objects, this object can
To be another fluid injection phasitron or a pipe, and if pipe, it is preferred that the pipe uses and fluid injection
The identical material of phasitron, size are identical with phasitron；So as to which the fluid injection phasitron can send the sound of certain frequency, lead to
Overregulate how much reservoir quantity in fluid injection phasitron changes audible frequency, continuously adjusting for audible frequency can be conveniently realized；
In the case that the material and size of the frequency modulation chamber are fixed, the fluid injection frequency modulation transducer fills liquid by varying frequency modulation intracavitary
Species mode, either change frequency modulation intracavitary fill liquid number mode carry out frequency modulation or by using foregoing two
Kind of the mode combined carries out frequency modulation.
With reference to shown in Fig. 1, Fig. 1 is the frequency modulation Contrast on effect of injection variety classes liquid (kerosene, water, carbon tetrachloride).
In contrast test, the frequency modulation chamber outer radius of the fluid injection phasitron is 0.04m, inside radius 0.03m, length 0.5m, material
For stainless steel.It can be found that its tuning range is 341Hz to 718Hz when using kerosene from figure；Its frequency modulation when using water
Scope is 381Hz to 718Hz；Its tuning range is 240Hz to 718Hz when using carbon tetrachloride.Injection liquid is four chlorinations
During carbon, its tuning range bigger；When injection liquid is water, its frequency modulation precision higher.Therefore, it is possible to use kerosene, water, four chlorinations
The different liquid such as carbon obtains different tuning ranges and frequency modulation precision.
Fluid injection frequency modulation transducer provided by the invention does not limit the material and size design of the fluid injection phasitron, in reality
In application, need according to tuning range and the needs of frequency modulation precision come customized in advance.As shown in Fig. 2 (1), Fig. 2 (1), Fig. 2 (3),
Respectively steel, aluminium, the frequency modulation effect contrast figure of copper first natural frequency, steel, aluminium, the frequency modulation effect of copper second-order intrinsic frequency
Comparison diagram, steel, aluminium, the frequency modulation effect contrast figure of the 3rd rank intrinsic frequency of copper.It can be seen from the figure that for three kinds of different materials
Matter, is with the increase of water filling depth, its audible frequency is continuously reduced.Wherein, the tuning range bigger of steel, the frequency modulation essence of copper
Spend higher.Under different injection depth conditions, the rule of three kinds of material first three rank audible frequencies is identical.
In one embodiment, for convenience change fluid injection species and/or fluid injection depth to the fluid injection phasitron into
Further design is gone.I.e. described fluid injection phasitron includes frequency modulation chamber, and the both ends of the frequency modulation chamber are connected with top lid and bottom respectively
Lid；There are the first hole and the second hole on the head cover and bottom cover respectively, first hole is used to be connected with the piston in frequency modulation intracavitary portion
Push rod pass through, second hole is sealed using sealing-plug.And the depth of fluid injection is read for convenience, it is preferred that putter shaft
Scale is marked with, by reading how much the scale at the mouth of pipe observes fluid injection.
Further, the push rod is to be detachably connected with piston.It is described be detachably connected can be the push rod with
Piston is threadedly to connect or have corresponding buckle, or convenient push-and-pull at the same time is extracted in other convenient insertions
The connection mode of piston.In this manner, the reservoir quantity of frequency modulation chamber can be easily increased or decreased, can also easily be changed
Become fluid injection species, and then convenient frequency modulation can be carried out..
In a specific embodiment, the structure of the fluid injection phasitron is as shown in figure 3, fluid injection frequency modulation using the structure
When managing (5), push rod (7) is inserted into from the first hole (13) of head cover (8), is temporarily connected with piston (10), and can control piston
(10) up and down motion.The sealing-plug (11) on bottom cover (12) is opened, piston (10) is pulled up and inhales liquid from the second hole (14)
Enter to frequency modulation chamber (9), sealing-plug is closed after sucking liquid；Conversely, opening bottom seal plug, piston discharge liquid is pushed down on,
Sealing-plug is closed after discharge liquid, removes push rod.By increasing the reservoir quantity in pipe, the sounding frequency of fluid injection phasitron can be reduced
Rate；And by reducing the reservoir quantity in pipe, the audible frequency of fluid injection phasitron can be improved.
Optionally, the sealing-plug is connected through a screw thread with bottom cover.In this manner, can easily be sealed or
Open, and after sealing, it is not easily to fall off, provide reliable guarantee for the collection of sound.
Be easy to use and control for convenience of fluid injection phasitron, it is preferred that the both ends of the fluid injection phasitron respectively by equipped with
Pivoted arm, the bearing of the pivoted arm are installed in a shaft.
Further, there is gap between the head cover and bottom cover and frequency modulation chamber of the fluid injection phasitron (5), turn for placing
Perpendicular to the hollow cylinder of pivoted arm on arm.Mode in this way fixes the fluid injection phasitron, has the characteristics that install convenient.
In another embodiment, in order to enable the fluid injection frequency modulation transducer is in the case where no extra power is supplied
Long-term sounding under water, as shown in figure 4, the fluid injection frequency modulation transducer further includes two pipes (3), in two pipes
(3) there are two fluid injection phasitrons (5) between, there are pivoted arm (4), the axis of the pivoted arm in the both ends of two fluid injection phasitrons (5) respectively
Hold (6) to be installed in same shaft (2), the length of the pivoted arm (4) can make fluid injection phasitron (5) around shaft
(2) rotate when and pipe (3) collide and fluid injection phasitron (5) between mutually collide.
When the fluid injection frequency modulation transducer in this way, the fluid injection frequency modulation transducer is placed on when in use
When in fluid, when can be flowed through using fluid among two fluid injection phasitrons, according to Venturi effect, each fluid injection phasitron
There are pressure difference, two fluid injection phasitrons (5) for both sides can produce relative motion, until opposite direction is moved after collision, the pipe with both sides
Sub (3) collision, and in each collision process, fluid injection phasitron (5) is energized, and sends the sound of certain frequency.Using this
The fluid injection frequency modulation transducer working method movement realization of structure is simple, and can be according to the customized different frequency sections of actual needs
Structure, easy to practical implementation；The required ability of sounding is directly converted from fluid, is had in being utilized in off-lying sea marine site
There is great advantage；And since whole fluid injection frequency modulation transducer can be placed directly within sounding in seawater, eliminate sound and pass through
Energy loss during wall, is more advantageous to the transmission of sound.
In order to facilitate fixing tube (3) and shaft (2), the fluid injection frequency modulation transducer further includes two in one embodiment
Block set square.As shown in figure 5, two pieces of set squares are useful for hole (15) and the installation shaft of installation pipe on corresponding three angles
Hole (16).Latter two pipe (3) is installed and shaft (3) is vertical with set square, optionally, the pipe (3) and shaft (2) are logical
Cross and be threadedly secured on two pieces of set squares.
In one embodiment, two pieces of set squares have corresponding 3rd hole on the same angle of shaft (4) is provided with
(17), hook when the 3rd hole (17) pulls in a fluid for fluid injection frequency modulation transducer.When the fluid injection frequency modulation transducing
Device in a fluid dragged lower movement when, fluid can be flowed through among two fluid injection phasitrons, according to Venturi effect, each fluid injection
There are pressure difference, two phasitrons for the both sides of phasitron can produce relative motion, until opposite direction is moved after collision, with consolidating for both sides
Fixed tube collides.In each collision process, fluid injection phasitron is energized, and sends the sound of certain frequency.It is described under this sample loading mode
Fluid injection frequency modulation transducer motion is simple, and the energy needed for sounding is directly converted from fluid, can be in no extra power
Long-term sounding in the case of supply.
It is easy to adjust in conclusion the present invention provides a kind of new conversion system, overcome traditional by changing
Sounding body structure carrys out the mode of frequency conversion, realizes continuous frequency conversion.The present invention is by adjusting how much reservoir quantity in liquid injection pipe changes hair
Acoustic frequency, can conveniently realize continuously adjusting for audible frequency；Change fluid injection species by convenient, to obtain different frequency modulation
Scope and frequency modulation precision；Since the required energy of sounding is directly converted from energy by ocean current, can be supplied in no extra power
Long-term sounding under water in the case of answering, has great advantage in being utilized in off-lying sea marine site, whole device is placed in seawater
Sounding, eliminates energy loss when sound passes through wall, is more advantageous to the transmission of sound；And letter is realized in the movement of whole device
It is single, install convenient；Need to select material according to the tuning range and precision of actual needs, design size before application, so that
It is how many or fluid injection species carries out frequency modulation by varying fluid injection in the case where shape, size, material are fixed, it is actual easy to engineering
Using.
It is discussed in detail above to what the present invention carried out, specific case used herein is to the principle of the present invention and embodiment party
Formula is set forth, and the explanation of above example is only intended to help to understand method and its core concept of the invention；It is meanwhile right
In those skilled in the art, according to the thought of the present invention, there will be changes, comprehensive in specific embodiments and applications
Upper described, this specification content should not be construed as limiting the invention.
Claims (10)
- A kind of 1. fluid injection frequency modulation transducer, it is characterised in that：The fluid injection frequency modulation transducer includes fluid injection phasitron, and the fluid injection phasitron includes frequency modulation chamber, and the frequency modulation chamber is used for Hold liquid；The fluid injection phasitron can send the sound of certain frequency when colliding with other objects, in the tune In the case that the material and size of frequency chamber are fixed, the fluid injection frequency modulation transducer fills the species of liquid by varying frequency modulation intracavitary Mode and/or the frequency modulation intracavitary of changing fill liquid number mode carry out frequency modulation.
- 2. fluid injection frequency modulation transducer according to claim 1, it is characterised in that：The both ends of the frequency modulation chamber (9) connect respectively There are head cover (8) and bottom cover (12)；There are the first hole (13) and the second hole (14), first hole on the head cover and bottom cover respectively (13) it is used to the push rod (7) that the piston (10) internal with frequency modulation chamber (9) is connected pass through, second hole (14) uses sealing-plug (11) seal.
- 3. fluid injection frequency modulation transducer according to claim 2, it is characterised in that：The putter shaft is marked with scale.
- 4. fluid injection frequency modulation transducer according to claim 2, it is characterised in that：The push rod is detachably to connect with piston Connect.
- 5. fluid injection frequency modulation transducer according to claim 2, it is characterised in that：The sealing-plug is connected with bottom cover by screw thread Connect.
- 6. fluid injection frequency modulation transducer according to claim 1, it is characterised in that：The both ends of the fluid injection phasitron (5) point There is not pivoted arm (4), the bearing (6) of the pivoted arm is installed on a shaft (2).
- 7. fluid injection frequency modulation transducer according to claim 6, it is characterised in that：The head cover of the fluid injection phasitron (5) and There is gap between bottom cover and frequency modulation chamber, for placing on pivoted arm perpendicular to the hollow cylinder of pivoted arm.
- 8. fluid injection frequency modulation transducer according to claim 6, it is characterised in that：The fluid injection frequency modulation transducer also includes two A pipe (3), there is two fluid injection phasitrons (5) between two pipes (3), and the length of the pivoted arm (4) can make fluid injection Phasitron (5) when being rotated around shaft (2) and pipe (3) collide and fluid injection phasitron (5) between mutually collide.
- 9. fluid injection frequency modulation transducer according to claim 8, it is characterised in that：The fluid injection frequency modulation transducer further includes two Block set square, the set square are used for fixing tube (3) and shaft (2).
- 10. fluid injection frequency modulation transducer according to claim 9, it is characterised in that：Two pieces of set squares be provided with turn There is corresponding 3rd hole (17) on the same angle of axis (4), the 3rd hole (17) is dragged in a fluid for fluid injection frequency modulation transducer Son is linked up with when dragging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510230196.8A CN104835486B (en) | 2015-05-07 | 2015-05-07 | A kind of fluid injection frequency modulation transducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510230196.8A CN104835486B (en) | 2015-05-07 | 2015-05-07 | A kind of fluid injection frequency modulation transducer |
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| Publication Number | Publication Date |
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| CN104835486A CN104835486A (en) | 2015-08-12 |
| CN104835486B true CN104835486B (en) | 2018-05-15 |
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| CN201510230196.8A Expired - Fee Related CN104835486B (en) | 2015-05-07 | 2015-05-07 | A kind of fluid injection frequency modulation transducer |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114553321B (en) * | 2021-12-14 | 2023-08-22 | 北京理工大学 | Acoustic wave transmitting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2404360A (en) * | 1942-06-05 | 1946-07-23 | Bell Telephone Labor Inc | Tunable underwater signal source |
| US4855964A (en) * | 1988-07-08 | 1989-08-08 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Vented-pipe projector |
| CN102903359A (en) * | 2011-07-26 | 2013-01-30 | 饶舒炜 | Whistle |
-
2015
- 2015-05-07 CN CN201510230196.8A patent/CN104835486B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2404360A (en) * | 1942-06-05 | 1946-07-23 | Bell Telephone Labor Inc | Tunable underwater signal source |
| US4855964A (en) * | 1988-07-08 | 1989-08-08 | Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government | Vented-pipe projector |
| CN102903359A (en) * | 2011-07-26 | 2013-01-30 | 饶舒炜 | Whistle |
Non-Patent Citations (2)
| Title |
|---|
| A Sound Projector for Acoustic Tomography and Global Ocean Monitoring;Andrey K. Morozov and Douglas C. Webb;《IEEE JOURNAL OF OCEANIC ENGINEERING》;20030430;第28卷(第2期);全文 * |
| Andrey K. Morozov and Douglas C. Webb.Underwater tunable organ-pipe sound source.《J. Acoust. Soc. Am.》.2007,第122卷(第2期), * |
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| CN104835486A (en) | 2015-08-12 |
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