CN208721244U - A kind of fiber optic hydrophone unit encapsulating structure - Google Patents
A kind of fiber optic hydrophone unit encapsulating structure Download PDFInfo
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- CN208721244U CN208721244U CN201821562475.XU CN201821562475U CN208721244U CN 208721244 U CN208721244 U CN 208721244U CN 201821562475 U CN201821562475 U CN 201821562475U CN 208721244 U CN208721244 U CN 208721244U
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- fiber optic
- optic hydrophone
- shell
- hydrophone unit
- encapsulating structure
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Abstract
The utility model discloses a kind of fiber optic hydrophone unit encapsulating structure and packaging methods, the encapsulating structure, including open-topped shell, fiber optic hydrophone unit is fixed in the shell, liquid medium is filled between fiber optic hydrophone unit and inner walls, liquid medium is inert fluid, and for the liquid level of liquid medium by diaphragm seal, the opening of shell is cast with enclosuring structure；The packaging method includes the following steps: to be poured open-topped shell with encapsulating material, and solidifies shell；Fiber optic hydrophone unit is fixedly mounted in shell；Inert fluid is filled in shell, inert fluid floods fiber optic hydrophone unit；With the liquid level of diaphragm seal inert fluid；Encapsulating structure is poured in the opening encapsulating material of shell.Using the encapsulating structure and packaging method of the application, the reliability of fiber optic hydrophone unit is not only effectively increased, but also reduces the risk of fiber optic hydrophone unit damage.
Description
Technical field
The utility model relates to a kind of fibre optic hydrophone encapsulation technology fields, and in particular to a kind of fiber optic hydrophone unit envelope
Assembling structure.
Background technique
Fibre optic hydrophone is a kind of novel underwater sound sensor of the foundation in optical fiber, photoelectron technology, it using optical fiber as
The sensor information of underwater sound signal.The Sonar system being made of fibre optic hydrophone can be applied to the towing system of submarine or surface ship
System, also can be applied to bank base warning system, be the advanced detection means of Modern Navy anti-submarine warfare and underwater ordnance test.With
Fibre optic hydrophone measure underwater noise field, with study the acoustic propagation in marine acoustics environment, seanoise, submarine acoustic characteristic with
And target acoustical characteristic etc. injects vigour into the development of marine acoustics.Fibre optic hydrophone also can be applied to offshore oil, natural
Gas exploration etc..Therefore, fibre optic hydrophone becomes the important directions and underwater sound sensing technology of modern optical fiber sensing technology development
The main direction of development.
As shown in Figure 1, deep-sea fiber hydrophone sonde configuration with bobbin-type containing based on air chamber, by inner cylinder, outer cylinder, optical fiber
Interferometer, encapsulating material composition, under the action of acoustic pressure, are wrapped in the elongate optical fiber of inner cylinder, and the optical fiber for being wrapped in outer cylinder is shunk,
Form push-pull type structure, the sensitivity of Lai Tigao fibre optic hydrophone.Since deep-sea fiber hydrophone probe needs sound with higher
Sensitivity is pressed, therefore inner cylinder, outer cylinder need to have lower elasticity modulus, inner barrel and outer barrel wall thickness is smaller, leads to sonde configuration
Compression strength is smaller, and then needs to improve the compression strength of deep-sea fiber hydrophone probe by encapsulating material, generallys use
Packaging method be it is direct be poured naked probe with high-intensitive encapsulating material, there are deep-sea fiber hydrophone probe is direct for this mode
Damage or the low risk of reliability.
Utility model content
The purpose of the utility model is to provide a kind of fiber optic hydrophone unit encapsulating structures, visit to improve fibre optic hydrophone
The reliability of head reduces the risk of fiber optic hydrophone unit damage.
The utility model is solved the above problems by following technological means: a kind of fiber optic hydrophone unit encapsulating structure, packet
Open-topped shell is included, fiber optic hydrophone unit is fixed in the shell, between fiber optic hydrophone unit and inner walls
Filled with liquid medium, liquid medium is inert fluid, and by diaphragm seal, the opening of shell is poured the liquid level of liquid medium
There is enclosuring structure.
Further, the enclosuring structure is identical as shell material and the structure that pours into an integrated entity.
Further, the shell is cylindrical shape or rectangular cylinder shape.
Further, the inert fluid is silicone oil or paraffin oil.
Further, the fiber optic hydrophone unit is fixed on casing center.
A kind of packaging method of above-mentioned fiber optic hydrophone unit encapsulating structure, includes the following steps:
S1: it is poured open-topped shell with encapsulating material, and solidifies shell；
S2: fiber optic hydrophone unit is fixedly mounted in shell；
S3: filling inert fluid in shell, and inert fluid floods fiber optic hydrophone unit；
S4: with the liquid level of diaphragm seal inert fluid；
S5: encapsulating structure is poured in the opening encapsulating material of shell.
The utility model has the beneficial effects that
The utility model provides a kind of fiber optic hydrophone unit encapsulating structure and packaging method, the encapsulating structure, including
Open-topped shell is fixed with fiber optic hydrophone unit in the shell, fills out between fiber optic hydrophone unit and inner walls
Filled with liquid medium, liquid medium is inert fluid, and by diaphragm seal, the opening of shell is cast with the liquid level of liquid medium
Enclosuring structure；The packaging method includes the following steps: to be poured open-topped shell with encapsulating material, and solidifies shell；?
Fiber optic hydrophone unit is fixedly mounted in shell；Inert fluid is filled in shell, inert fluid floods fiber optic hydrophone unit；
With the liquid level of diaphragm seal inert fluid；Encapsulating structure is poured in the opening encapsulating material of shell.Using the envelope of the application
Assembling structure and packaging method, center are filled using inert fluid, avoid uncured encapsulating material and directly contact with internal components,
It generates internal stress in the curing process so as to avoid encapsulating material and heat release is excessive and cause to damage to optical fiber and device, not only
The reliability of fiber optic hydrophone unit is effectively increased, and reduces the risk of fiber optic hydrophone unit damage.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of existing fiber hydrophone probe.
Fig. 2 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in detail below with reference to attached drawing.
Referring to Fig. 2, shown in fiber optic hydrophone unit encapsulating structure, including open-topped shell 1, the shell is by sealing
Solidify after package material casting, encapsulating material is the common encapsulating material in this field, and shell is cylindrical shape or rectangular cylinder
Shape, center is fixed with fiber optic hydrophone unit 2 inside housings, and liquid is filled between fiber optic hydrophone unit and inner walls
Medium 3, liquid medium are inert fluid, and inert fluid is silicone oil or paraffin oil, and the liquid level of liquid medium is sealed by film 4,
After liquid medium sealing being got well with film, be poured enclosuring structure 5, enclosuring structure in the same encapsulating material of opening of shell
It pours into an integrated entity with shell.
Disclosed herein as well is a kind of packaging methods of fiber optic hydrophone unit encapsulating structure, include the following steps:
S1: it is poured open-topped shell with encapsulating material, and solidifies shell；
S2: fiber optic hydrophone unit is fixedly mounted in shell；
S3: filling inert fluid in shell, and inert fluid floods fiber optic hydrophone unit；
S4: with the liquid level of diaphragm seal inert fluid；
S5: encapsulating structure is poured in the opening encapsulating material of shell.
Using the encapsulating structure and packaging method of the application, center is filled using inert fluid, avoids uncured encapsulation
Material is directly contacted with internal components, generates internal stress in the curing process so as to avoid encapsulating material and heat release is excessive and right
Optical fiber and device cause to damage, and not only effectively increase the reliability of fiber optic hydrophone unit, but also reduce fibre optic hydrophone
The risk of tip damage.
Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng
The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this
The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of fiber optic hydrophone unit encapsulating structure, it is characterised in that: fixed in the shell including open-topped shell
There is fiber optic hydrophone unit, liquid medium is filled between fiber optic hydrophone unit and inner walls, liquid medium is inert liquid
Body, for the liquid level of liquid medium by diaphragm seal, the opening of shell is cast with enclosuring structure.
2. fiber optic hydrophone unit encapsulating structure according to claim 1, it is characterised in that: the enclosuring structure and shell
Material is identical and the structure that pours into an integrated entity.
3. fiber optic hydrophone unit encapsulating structure described in -2 any one according to claim 1, it is characterised in that: the shell
For cylindrical shape or rectangular cylinder shape.
4. fiber optic hydrophone unit encapsulating structure according to claim 3, it is characterised in that: the inert fluid is silicone oil
Or paraffin oil.
5. fiber optic hydrophone unit encapsulating structure according to claim 4, it is characterised in that: the fiber optic hydrophone unit
It is fixed on casing center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562475.XU CN208721244U (en) | 2018-09-21 | 2018-09-21 | A kind of fiber optic hydrophone unit encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821562475.XU CN208721244U (en) | 2018-09-21 | 2018-09-21 | A kind of fiber optic hydrophone unit encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208721244U true CN208721244U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821562475.XU Active CN208721244U (en) | 2018-09-21 | 2018-09-21 | A kind of fiber optic hydrophone unit encapsulating structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557707A (en) * | 2019-09-16 | 2019-12-10 | 中国科学院半导体研究所 | Core shaft push-pull type grooved optical fiber microphone |
-
2018
- 2018-09-21 CN CN201821562475.XU patent/CN208721244U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110557707A (en) * | 2019-09-16 | 2019-12-10 | 中国科学院半导体研究所 | Core shaft push-pull type grooved optical fiber microphone |
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