CN206628268U - Low-frequency transducer - Google Patents
Low-frequency transducer Download PDFInfo
- Publication number
- CN206628268U CN206628268U CN201720272914.2U CN201720272914U CN206628268U CN 206628268 U CN206628268 U CN 206628268U CN 201720272914 U CN201720272914 U CN 201720272914U CN 206628268 U CN206628268 U CN 206628268U
- Authority
- CN
- China
- Prior art keywords
- end flange
- bushing
- ceramic ring
- piezoelectric ceramic
- low
- 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.)
- Expired - Fee Related
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model discloses a kind of low-frequency transducer, including piezoelectric ceramic ring, bushing, front end flange, rear end flanges, the binding post containing two annular silks, two wires, cable, sealing block, two felt pads and overcoat；Piezoelectric ceramic ring is sheathed on the outer ring surface of bushing, front end flange and rear end flanges are threadedly coupled with the both ends of bushing respectively, one end of two wires of connection of cable wears front end flange, binding post is cased with piezoelectric ceramic ring, two wires wear bushing and are connected respectively with two annular silks, and two annular silks are connected with the both positive and negative polarity of piezoelectric ceramic ring respectively；Plug is provided with sealing block in front end flange, and sealing block is sheathed on cable, and front end flange and piezoelectric ceramics interannular and rear end flanges and piezoelectric ceramics interannular are cased with felt pad, and overcoat is fastenedly connected with front end flange and rear end flanges.Stable performance, structure design is simple, can obtain higher sensitivity, and response curve is flat, and broader bandwidth, and processing and fabricating is simple, and cost is cheap.
Description
Technical field
It the utility model is related to a kind of sonar hydrophone for being used to receive low frequency signal under water, more particularly to a kind of low frequency
Transducer.
Background technology
Transducer is the device of energy conversion, in recent years, occur include using piezoelectric ceramics, piezo-electricity composite material,
The polytypes such as PVDF (Kynoar) thin-film material, fibre optic hydrophone, but most widely used is to use piezoelectric ceramics.Mesh
Before, many transducers use a piece of piezoelectric element form, and its sensitivity is not high, rise and fall big.
Utility model content
The utility model is directed to problem and shortage existing for prior art, there is provided a kind of new low-frequency transducer.
The utility model is that solve above-mentioned technical problem by following technical proposals：
The utility model provides a kind of low-frequency transducer, its feature is, it includes one and is made up of multiple piezoelectric elements
End flanges, a binding post containing two annular silks, two wires, one after piezoelectric ceramic ring, a bushing, a front end flange, one
Cable, a sealing block, two felt pads and an overcoat；
The piezoelectric ceramic ring is sheathed on the outer ring surface of the bushing, the front end flange and the rear end flanges respectively with the bushing
Both ends are threadedly coupled, and one end of the connection of the cable two wires wears the front end flange, this is cased with the piezoelectric ceramic ring
Binding post, two wires wear the bushing and are connected respectively with two annular silks, two annular silks respectively with the piezoelectricity
The both positive and negative polarity connection of ceramic ring；
Plug is provided with the sealing block in the front end flange, and the sealing block is sheathed on the cable, the front end flange and the pressure
Electroceramics interannular and the rear end flanges and the piezoelectric ceramics interannular are arranged with the felt pad, the overcoat and the front end flange and
The rear end flanges are fastenedly connected.
It is preferred that the outer ring surface of the piezoelectric ceramic ring is coated with acoustic impedance match film.
It is preferred that the acoustic impedance match film is the acoustic impedance match film made of butyl material.
It is preferred that the piezoelectric ceramic ring is using 48 strip piezoelectric element composition annulars.
It is preferred that the overcoat is integrally formed using the cast of polyurethane rubber mould.
It is preferred that the front end flange and the rear end flanges are the flange being made of stainless steel.
It is preferred that the bushing is the bushing made of aluminium alloy.
On the basis of common sense in the field is met, above-mentioned each optimum condition, can be combined, produce the utility model respectively compared with
Good example.
Positive effect of the present utility model is：
The utility model be by by multiple piezo ceramic elements combination circularize, received in water underwater voice signal and
Noise sound pressure variations, convert thereof into the voltage signal output that harmony is pressed into ratio.Its stable performance, structure design is simple, can
Higher sensitivity is obtained, response curve is flat, and broader bandwidth, and processing and fabricating is simple, and cost is cheap.
Brief description of the drawings
Fig. 1 is the structural representation of the low-frequency transducer of the utility model preferred embodiment.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all belongs to
In the scope of the utility model protection.
As shown in figure 1, the present embodiment provides a kind of low-frequency transducer, it includes hold-carrying before a cable 1, a sealing block 2, one
Blue 3, two felt pads 4,5, two binding posts 7 of the wire 6, one containing two annular copper wires of an overcoat, a bushing 8, one are by 48
The acoustic impedance match film 11 of end flanges 10 and one after the piezoelectric ceramic ring 9, one of individual strip piezoelectric element composition.
The piezoelectric ceramic ring 9 is sheathed on the outer ring surface of the bushing 8, the front end flange 3 and the rear end flanges 10 respectively with this
The both ends threaded connection of bushing 8, one end of the connection of the cable 1 two wires 6 wears the front end flange 3, the piezoelectric ceramics
The binding post 7 is cased with ring 9, the both positive and negative polarity of two annular copper wires respectively with the piezoelectric ceramic ring 9 is connected, two wires 6
Wear the bushing 8 and be welded to connect respectively with two annular copper silks.
Plug is provided with the sealing block 2 in the front end flange 3, and the sealing block 2 is sheathed on the cable 1, the He of front end flange 3
The felt pad 4 is arranged between the piezoelectric ceramic ring 9 and between the rear end flanges 10 and the piezoelectric ceramic ring 9, the overcoat 5 is with being somebody's turn to do
Front end flange 3 and the rear end flanges 10 are fastenedly connected.
Wherein, the outer ring surface of the piezoelectric ceramic ring 9 is coated with the acoustic impedance match film 11, the acoustic impedance match film 11
Using butyl material；The front end flange 3 and the rear end flanges 10 are made of stainless steel；The bushing 8 is made up of aluminium alloy.
In addition, the overcoat 5 plays a part of transmitting pressure and sealing, it is integrally formed using the cast of polyurethane rubber mould,
Good stability of the dimension, any surface finish；The felt pad 4 isolates the contact with the piezoelectric ceramic ring 9 of front end flange 3 and the rear end
The contact of flange 10 and the piezoelectric ceramic ring 9, the felt pad 4 use silicone rubber pad, insulate and elasticity is good；The sealing block 2 is filled
The gap of the cable 1, to ensure without infiltration.
This transducer is by being circularized the combination of multiple piezo ceramic elements, underwater voice signal being received in water and is made an uproar
Sound sound pressure variations, convert thereof into the voltage signal output that harmony is pressed into ratio.Its stable performance, structure design is simple, can obtain
Higher sensitivity being obtained, response curve is flat, and broader bandwidth, it is possible to increase the signal to noise ratio of reception signal, processing and fabricating is simple,
Cost is cheap.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or repair to these embodiments on the premise of without departing substantially from principle of the present utility model and essence
Change, but these changes and modification each fall within the scope of protection of the utility model.
Claims (7)
1. a kind of low-frequency transducer, it is characterised in that it includes a piezoelectric ceramic ring being made up of multiple piezoelectric elements, a lining
End flanges, a binding post containing two annular silks, two wires, a cable, a sealing block, two after set, a front end flange, one
Individual felt pad and an overcoat；
The piezoelectric ceramic ring is sheathed on the outer ring surface of the bushing, the front end flange and the rear end flanges both ends with the bushing respectively
Threaded connection, one end of the connection of the cable two wires wears the front end flange, the wiring is cased with the piezoelectric ceramic ring
Post, two wires wear the bushing and are connected respectively with two annular silks, two annular silks respectively with the piezoelectric ceramics
The both positive and negative polarity connection of ring；
Plug is provided with the sealing block in the front end flange, and the sealing block is sheathed on the cable, and the front end flange and the piezoelectricity are made pottery
Between ceramic ring and the rear end flanges and the piezoelectric ceramics interannular are arranged with the felt pad, the overcoat with after the front end flange and this
End flanges are fastenedly connected.
2. low-frequency transducer as claimed in claim 1, it is characterised in that the outer ring surface of the piezoelectric ceramic ring is coated with acoustic impedance
Match film.
3. low-frequency transducer as claimed in claim 2, it is characterised in that the acoustic impedance match film is by butyl material
Manufactured acoustic impedance match film.
4. low-frequency transducer as claimed in claim 1, it is characterised in that the piezoelectric ceramic ring uses 48 strip piezoelectric elements
Composition annular.
5. low-frequency transducer as claimed in claim 1, it is characterised in that the overcoat is using polyurethane rubber mould cast one
Shaping.
6. low-frequency transducer as claimed in claim 1, it is characterised in that the front end flange and the rear end flanges are by stainless
Flange made of steel.
7. low-frequency transducer as claimed in claim 1, it is characterised in that the bushing is the bushing made of aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720272914.2U CN206628268U (en) | 2017-03-20 | 2017-03-20 | Low-frequency transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720272914.2U CN206628268U (en) | 2017-03-20 | 2017-03-20 | Low-frequency transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206628268U true CN206628268U (en) | 2017-11-10 |
Family
ID=60209787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720272914.2U Expired - Fee Related CN206628268U (en) | 2017-03-20 | 2017-03-20 | Low-frequency transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206628268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616091A (en) * | 2018-11-29 | 2019-04-12 | 哈尔滨工程大学 | A kind of low side surface radiation annulus energy converter |
-
2017
- 2017-03-20 CN CN201720272914.2U patent/CN206628268U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109616091A (en) * | 2018-11-29 | 2019-04-12 | 哈尔滨工程大学 | A kind of low side surface radiation annulus energy converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20200320 |