CN205861262U - The pressure transducer that a kind of band stress is concentrated - Google Patents
The pressure transducer that a kind of band stress is concentrated Download PDFInfo
- Publication number
- CN205861262U CN205861262U CN201620809512.7U CN201620809512U CN205861262U CN 205861262 U CN205861262 U CN 205861262U CN 201620809512 U CN201620809512 U CN 201620809512U CN 205861262 U CN205861262 U CN 205861262U
- Authority
- CN
- China
- Prior art keywords
- metal film
- optical fiber
- groove
- stress
- pressure transducer
- 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
Landscapes
- Light Guides In General And Applications Therefor (AREA)
Abstract
This utility model relates to the pressure transducer that a kind of band stress is concentrated, including: shell, the tubular structure of described shell two ends closure, described shell offers installing hole and aspirating hole；Metal film, described metal film is arranged in described installing hole and the inwall of its week side edge and described installing hole is fixedly linked；Offer stress on described metal film and concentrate groove；FBG optical fiber, described FBG optical fiber is fixed on the outside of described metal film.The structure of pressure transducer of the present utility model uses metal film and shell to surround cavity, and offers stress concentration groove on metal film, can play the effect that signal amplifies, and the sensitivity making pressure transducer is higher.
Description
Technical field
This utility model relates to undersea detection, identifies, communicates and marine environmental monitoring and marine resources development technical field,
It is specifically related to the pressure transducer that a kind of band stress is concentrated.
Background technology
Traditional pressure transducer is usually silicon pressure drag, and this sensor cost is high, and anti-electromagnetism, pollution capacity
Difference.The Sensitivity in Pressure Sensors of traditional silicon pressure drag is low, and when measuring pressure array, traditional pressure transducer can not use
Single line transmits.
Utility model content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, it is provided that a kind of band stress is concentrated
Pressure transducer.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: the pressure transducer that a kind of band stress is concentrated,
Including:
Shell, the tubular structure of described shell two ends closure, described shell offers installing hole and aspirating hole；
Metal film, described metal film is arranged in described installing hole and the inwall of its week side edge and described installing hole is fixed
It is connected；Offer stress on described metal film and concentrate groove；
FBG optical fiber, described FBG optical fiber is fixed on the outside of described metal film.
The beneficial effects of the utility model are: the structure of pressure transducer of the present utility model uses metal film and shell to enclose
Become cavity, and on metal film, offer stress concentration groove, the effect that signal amplifies can be played, make the sensitivity of pressure transducer
Higher.
On the basis of technique scheme, this utility model can also do following improvement.
Further, all sides of described metal film are welded and fixed along the inwall with described installing hole or are adhesively fixed.
Above-mentioned further scheme is used to provide the benefit that: by being welded along the inwall with installing hole by all sides of metal film
Connect fixing or be adhesively fixed, making the pressure in shell evenly stable.
Further, the inner side and outer side of described metal film all offers at least one stress and concentrates groove.
Further, described FBG optical fiber is positioned at the top being opened in the stress concentration groove outside metal film.
Further, the outer surface of described metal film offering optical fiber and installs groove, the two ends of groove installed by described optical fiber
For uncovered structure, described stress concentration groove is opened in described optical fiber and installs on the bottom land of groove, and described FBG optical fiber passes described light
Fibre is installed groove and is fixed on described bottom land.
Further, described FBG optical fiber is pasted onto on the bottom land of described optical fiber installation groove by adhesive.
Above-mentioned further scheme is used to provide the benefit that: by FBG is pasted onto optical fiber by adhesive, groove to be installed
Bottom land on, when being changed by ambient pressure, metal film causes vibrations thus causes the mobile generation of FBG optical fiber striped corresponding
Signal output, make FBG optical fiber signal output more stable.
Further, described adhesive is epoxy resin.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of this utility model embodiment.
In accompanying drawing, the list of parts representated by each label is as follows:
1, shell；11, installing hole；12, aspirating hole；2, metal film；21, stress concentrates groove；22, pad；3, FBG light
Fine.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this practicality
Novel, it is not intended to limit scope of the present utility model.
As it is shown in figure 1, the pressure transducer that a kind of band stress of the present embodiment is concentrated, including:
Shell 1, the tubular structure of described shell 1 two ends closure, described shell 1 offers installing hole 11 and aspirating hole
12；
Metal film 2, in described metal film 2 is arranged on described installing hole 11 and its week side edge with in described installing hole 11
Wall is fixedly linked；Offer stress on described metal film 2 and concentrate groove 21；Metal film 2 welds the pad formed with installing hole 11
22 as shown in Figure 1；
FBG optical fiber 3, described FBG optical fiber 3 is fixed on the outside of described metal film 2.
The structure of the pressure transducer of the present embodiment uses metal film and shell to surround cavity, and offer on metal film should
Power concentrates groove, can play the effect that signal amplifies, and the sensitivity making pressure transducer is higher.
As it is shown in figure 1, all sides of the described metal film 2 of the present embodiment are welded and fixed along the inwall with described installing hole 11
Or be adhesively fixed.By all sides of metal film are welded and fixed or are adhesively fixed along the inwall with installing hole, in making shell
Pressure is evenly stable.
As it is shown in figure 1, the inner side and outer side of the described metal film 2 of the present embodiment all offers at least one stress concentrates groove
21。
As it is shown in figure 1, the described FBG optical fiber 3 of the present embodiment is positioned at and is opened in stress outside metal film 2 and concentrates groove 21
Top.
As it is shown in figure 1, offer optical fiber on the outer surface of the described metal film 2 of the present embodiment to install groove, described optical fiber
The two ends installing groove are uncovered structure, and described stress concentrates groove 21 to be opened on the bottom land of described optical fiber installation groove, described
FBG optical fiber 3 is installed groove through described optical fiber and is fixed on described bottom land.
As it is shown in figure 1, the described FBG optical fiber 3 of the present embodiment is pasted onto described optical fiber by adhesive installs the groove of groove
, the described adhesive of the present embodiment preferably employs epoxy resin at the end.Install logical by FBG is pasted onto optical fiber by adhesive
On the bottom land of groove, when being changed by ambient pressure, metal film causes vibrations thus causes the mobile generation phase of FBG optical fiber striped
The signal output answered, the signal output making FBG optical fiber is more stable.
An airtight cavity is formed, when measuring absolute acoustic pressure, at aspirating hole in the pressure transducer of the present embodiment
Extraction air forms inner chamber vacuum, FBG optical fiber is affixed on surface and passes through epoxy resin cure, when being changed by ambient pressure,
Metal film will cause vibrations thus causes the movement of FBG optical fiber striped and produce the output of corresponding signal.By on metal film
Offering stress concentrates groove that signal plays the effect of amplification.The metal film of the band stress concentration groove of the present embodiment can be according to sensitive
The requirement design thickness of degree and stress concentrate the degree of depth of groove.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (7)
1. the pressure transducer that a band stress is concentrated, it is characterised in that including:
Shell (1), the tubular structure that described shell (1) blocks in two ends, described shell (1) offers installing hole (11) and takes out
Pore (12)；
Metal film (2), in described metal film (2) is arranged on described installing hole (11) and its week side edge and described installing hole (11)
Inwall be fixedly linked；Offer stress on described metal film (2) and concentrate groove (21)；
FBG optical fiber (3), described FBG optical fiber (3) is fixed on the outside of described metal film (2).
The pressure transducer that a kind of band stress is concentrated, it is characterised in that described metal film (2)
Week side edge is welded and fixed with the inwall of described installing hole (11) or is adhesively fixed.
The pressure transducer that a kind of band stress the most according to claim 1 or claim 2 is concentrated, it is characterised in that described metal film (2)
Inner side and outer side all offer at least one stress concentrate groove (21).
The pressure transducer that a kind of band stress is concentrated, it is characterised in that described FBG optical fiber (3) position
The top of groove (21) is concentrated in the stress being opened in metal film (2) outside.
The pressure transducer that a kind of band stress is concentrated, it is characterised in that described metal film (2)
Offering optical fiber on outer surface and install groove, the two ends of groove installed by described optical fiber is uncovered structure, and described stress concentrates groove
(21) being opened in described optical fiber and install on the bottom land of groove, described FBG optical fiber (3) is installed groove through described optical fiber and is fixed on
On described bottom land.
The pressure transducer that a kind of band stress is concentrated, it is characterised in that described FBG optical fiber (3) is led to
Cross adhesive to be pasted onto on the bottom land of described optical fiber installation groove.
The pressure transducer that a kind of band stress is concentrated, it is characterised in that described adhesive is epoxy
Resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809512.7U CN205861262U (en) | 2016-07-28 | 2016-07-28 | The pressure transducer that a kind of band stress is concentrated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620809512.7U CN205861262U (en) | 2016-07-28 | 2016-07-28 | The pressure transducer that a kind of band stress is concentrated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205861262U true CN205861262U (en) | 2017-01-04 |
Family
ID=57652995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620809512.7U Expired - Fee Related CN205861262U (en) | 2016-07-28 | 2016-07-28 | The pressure transducer that a kind of band stress is concentrated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205861262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197785A (en) * | 2016-07-28 | 2016-12-07 | 北京中智永科技发展有限公司 | The pressure transducer that a kind of band stress is concentrated |
-
2016
- 2016-07-28 CN CN201620809512.7U patent/CN205861262U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197785A (en) * | 2016-07-28 | 2016-12-07 | 北京中智永科技发展有限公司 | The pressure transducer that a kind of band stress is concentrated |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208458900U (en) | A kind of fiber bragg grating pressure sensor structure | |
| CN103105248B (en) | Silicon substrate double-paddle structure quartz beam resonant micro pressure sensor | |
| CN201628591U (en) | Optical fiber grating temperature sensor | |
| WO2009143207A3 (en) | Media isolated differential pressure sensor with cap | |
| ATE511633T1 (en) | VACUUM MEASURING CELL WITH MEMBRANE | |
| WO2010001255A3 (en) | Embedded fibre optic sensor for wind turbine components | |
| CN205861262U (en) | The pressure transducer that a kind of band stress is concentrated | |
| CN106197785A (en) | The pressure transducer that a kind of band stress is concentrated | |
| CN102095488B (en) | Optical fiber silicon micro sound pressure sensor-based packaging structure of low-stress convoluted diaphragm | |
| CN100394154C (en) | Pressure resistance type high frequency dynamic low voltage sensor | |
| US20200236471A1 (en) | Microphone | |
| CN100523754C (en) | Optical fibre pressure intensity sensor based on beam of constant strength | |
| CN205607584U (en) | Fiber grating air pressure sensor | |
| CN203133110U (en) | Resistance strain type acceleration sensor | |
| WO2011084358A3 (en) | Weatherized direct-mount absolute pressure sensor | |
| CN106643911A (en) | Fiber grating temperature-humidity sensor package structure | |
| CN105699690B (en) | A kind of vortex street air velocity transducer and its assemble method based on fiber grating | |
| CN204287026U (en) | Fiber Bragg grating type humidity sensor structure | |
| CN204330125U (en) | A kind of novel open type ultrasonic sensor | |
| CN205981437U (en) | Be used for dragging linear array vibration measuring optic fiber interference type accelerometer | |
| CN204944714U (en) | Pressure resistance type ceramic pressure sensor | |
| CN210571150U (en) | Waterproof barometer with uniformly-adhered coating adhesive | |
| CN213022234U (en) | Optical fiber ring temperature performance testing device | |
| CN105136379A (en) | Dynamic pressure sensor chip | |
| JP2004502364A (en) | Optical microphone / sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20170104 Termination date: 20190728 |