CN209673050U - A kind of high-precision optical fiber slit gauge - Google Patents
A kind of high-precision optical fiber slit gauge Download PDFInfo
- Publication number
- CN209673050U CN209673050U CN201920543962.XU CN201920543962U CN209673050U CN 209673050 U CN209673050 U CN 209673050U CN 201920543962 U CN201920543962 U CN 201920543962U CN 209673050 U CN209673050 U CN 209673050U
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- CN
- China
- Prior art keywords
- optical fiber
- connector
- inlet port
- slit gauge
- precision optical
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a kind of high-precision optical fiber slit gauges, including connector and inlet port, inlet port is provided on the right side of the connector, the connector is connect with inlet port cutting ferrule, sensing element shell is provided on the right side of the inlet port, fixing end is provided on the right side of the sensing element shell, the right end of the fixing end is connected with lengthening measuring staff, the utility model is by being arranged rubber pad in the junction of optical fiber, the connector of optical fiber and slit gauge is arranged in rubber pad, so as to further increase optical fiber in measurement process optical fiber by cutting ferrule connection connect with slit gauge during, the damage to junction that can prevent optical fiber from generating when entering slit gauge, there is good stability during optical fiber and slit gauge are attached simultaneously, then it can be surveyed by grating fibers adjusting apparatus system and read the change of slit gauge wavelength Change data and then calculates displacement variable.
Description
Technical field
The utility model belongs to civil engineering correlative technology field, and in particular to a kind of high-precision optical fiber slit gauge.
Background technique
Crack is calculated as the sensor of inductive frequency principle, and ontology built-in electronic tag can separately set number certainly, directly exports
Physical quantity, and can carry out 1600 datas of storage, such principle product accuracy, stability are high, can be used artificial reading or from
Dynamic acquisition mode carries out long-term observation, for the expansion joint of different structure body or the measure of the change in crack, be widely used in highway,
The engineering fields such as railway, bridge, dam, tunnel, side slope, building.Requirement according to field condition and to precision, which is selected, to be suitble to produce
Product.
Existing high-precision optical fiber slit gauge technology has the following problems: existing high-precision optical fiber slit gauge technology is in light
When fibre is entered in slit gauge, slit gauge needs fixation that can just export slit gauge wavelength change optical fiber, is output to
Grating fibers (FBG) demodulator system, grating fibers adjusting apparatus system, which can be surveyed, to be read slit gauge wavelength variation data and then calculates displacement
Variable quantity, however when optical fiber is fixed, it can not accomplish to be stabilized in optical fiber in spring tension bar, thus cannot be more preferable
The wavelength change for measuring slit gauge.
Utility model content
The purpose of this utility model is to provide a kind of high-precision optical fiber slit gauges, to solve to propose in above-mentioned background technique
Existing high-precision optical fiber slit gauge technology when optical fiber enters in slit gauge, slit gauge to optical fiber need it is fixed
Slit gauge wavelength change can be exported, however when optical fiber is fixed, the wavelength that cannot preferably measure slit gauge becomes
The problem of change.
To achieve the above object, the utility model provides the following technical solutions: a kind of high-precision optical fiber slit gauge, including even
Fitting and inlet port are provided with inlet port on the right side of the connector, and the connector is connect with inlet port cutting ferrule, the entrance
The right side of mouth is provided with sensing element shell, and fixing end, the right side of the fixing end are provided on the right side of the sensing element shell
End is connected with lengthening measuring staff, and the right end for lengthening measuring staff is connected with telescopic rod, and the right end of the telescopic rod is connected with lid, institute
It states telescopic rod and lid passes through welded connecting.
Preferably, the composition of the connector includes attachment, fixing piece and connector, on the right side of the attachment
Portion is provided with fixing piece, and connector is provided on the upside of the right end of the fixing piece, and the connector passes through connector and inlet port
Cutting ferrule connection.
Preferably, the composition of the inlet port includes the first junction, fixed column and the second junction, and described first connects
It is provided with fixed column on the right side of the place of connecing, the second junction is provided on the right side of the fixed column, the inlet port connects by first
Place is met to connect with connector cutting ferrule.
Preferably, the composition for lengthening measuring staff includes elastic and reset spring, the outside of the elastic one week
It is provided with reset spring, the lengthening measuring staff is connect by elastic with telescopic rod cutting ferrule.
Preferably, the sensing element shell is internally provided with sensing element, the inlet port and sensing element shell
It is linked together by socket, the shell of the sensing element shell is made by 304 stainless steels.
Preferably, the interface of the elastic that is internally provided with for lengthening measuring staff, the lengthening measuring staff and fixing end is solid
Fixed connection.
Preferably, one week setting rubber ring of the inside center of the inlet port, the left and right ends interface of the inlet port
The rubber ring of setting stretches out one centimetre of interface.
Preferably, the connector is a round table-like structure, and the connector is made by PP environment-friendly materials
, the size of the connector is three centimetres long.
Compared with prior art, the utility model provides a kind of high-precision optical fiber slit gauge, have it is following the utility model has the advantages that
For the utility model by the way that rubber pad is arranged in the junction of optical fiber, the connector of optical fiber and slit gauge is arranged in rubber pad, thus
Optical fiber optical fiber in measurement process can be further increased can prevent during being connect by cutting ferrule connection with slit gauge
Optical fiber damage to junction for generating when entering slit gauge, while having during optical fiber is attached with slit gauge good
Good stability, after optical fiber is attached with slit gauge, the deformation meeting of slit gauge is so that spring is moved, so that spring changes
Become the wavelength of optical fiber, however the variation of wavelength relationship proportional to the folding size in crack, then pass through grating fibers and demodulates
Instrument system, which can be surveyed, to be read slit gauge wavelength variation data and then calculates displacement variable.
Detailed description of the invention
Fig. 1 is the optical fiber slit gauge agent structure schematic diagram of the utility model；
Fig. 2 is the connecting-piece structure schematic diagram of the utility model；
Fig. 3 is the inlet port structural schematic diagram of the utility model；
Fig. 4 is the lengthening measuring staff structural schematic diagram of the utility model；
In figure: 1, connector；11, attachment；12, fixing piece；13, connector；2, inlet port；21, the first junction；
22, fixed column；23, the second junction；3, sensing element shell；4, fixing end；5, measuring staff is lengthened；51, elastic；52, it resets
Spring；6, telescopic rod；7, lid.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of high-precision optical fiber slit gauge, including connection
Part 1 and inlet port 2, the right side of connector 1 are provided with inlet port 2, and connector 1 is connect with 2 cutting ferrule of inlet port, the right side of inlet port 2
Side is provided with sensing element shell 3, and the right side of sensing element shell 3 is provided with fixing end 4, and the right end of fixing end 4, which is connected with, to be added
Long measuring staff 5 can preferably measure the length of telescopic rod 6 in this way, and the right end for lengthening measuring staff 5 is connected with telescopic rod 6, telescopic rod 6
Right end be connected with lid 7, telescopic rod 6 and lid 7 pass through welded connecting.
Further, the composition of connector 1 includes attachment 11, fixing piece 12 and connector 13, the right side of attachment 11
Top is provided with fixing piece 12, so that the first junction 21 can preferably be connect with the second junction 23, it is fixed
Connector 13 is provided on the upside of the right end of part 12, connector 1 is connect by connector 13 with 2 cutting ferrule of inlet port.
Further, the composition of inlet port 2 includes the first junction 21, fixed column 22 and the second junction 23, and first connects
The right side at the place of connecing 21 is provided with fixed column 22, so that the first junction 21 can preferably connect with the second junction 23
It connects, the right side of fixed column 22 is provided with the second junction 23, and inlet port 2 is connect by the first junction 21 with 1 cutting ferrule of connector.
Further, the composition for lengthening measuring staff 5 includes elastic 51 and reset spring 52, and the outside of elastic 51 is set for one week
It is equipped with reset spring 52, lengthens measuring staff 5 and connect by elastic 51 with 6 cutting ferrule of telescopic rod, so that telescopic rod 6 can be with
With more good retractility.
Further, sensing element shell 3 is internally provided with sensing element, can make to measure optical fiber in this way
When, displacement, inlet port 2 and sensing element shell 3 preferably can be measured by sensing element and be connected to one by socket
It rises, the shell of sensing element shell 3 is made by 304 stainless steels.
Further, lengthen measuring staff 5 is internally provided with elastic 51, lengthens the fixed company of interface of measuring staff 5 and fixing end 4
It connects, lengthening measuring staff 5 can be allowed to be attached with what fixing end 4 more consolidated in this way.
Further, one week setting rubber ring of the inside center of inlet port 2, so as to preferably make in connection procedure
In, it can more consolidate, the rubber ring of the left and right ends interface setting of inlet port 2 stretches out one centimetre of interface.
Further, connector 1 is a round table-like structure, and connector 1 is made by PP environment-friendly materials, can be with
It preferably economizes on resources, protects environment, the size of connector 1 is three centimetres long.
The working principle and process for using of the utility model:, first should be by the equipment after the utility model installs
It is placed on the place for generating surface cracks, optical fiber is connected by cutting ferrule then and is connect with the connector 13 of connector 1, however
It is provided with rubber pad in the junction of connector 13 and inlet port 2, the setting of rubber ring can make connector 13 and inlet port 2
Connection it is even closer with it is firm, the setting of rubber ring at the same time can make optical fiber fixing piece 12 entrance inlet port 2
When, the damage to junction that can prevent optical fiber from generating when entering slit gauge, then optical fiber can be connected and fixed to entrance
The junction of mouth 2 and sensing element shell 3, however the other end of sensing element can be connected to and lengthen measuring staff 5, in Fracture Deformation
In the process, it is moved since earth's surface exists, will drive elastic 51 and moved, so that elastic 51 changes the wave of optical fiber
It is long, however the variation of the wavelength of optical fiber and surface cracks are opened with size there are proportionate relationship, then fiber Bragg grating (FBG) demodulator system
System can survey the variable quantity read slit gauge wavelength variation data and then calculate displacement.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of high-precision optical fiber slit gauge, including connector (1) and inlet port (2), it is characterised in that: the connector (1)
Right side be provided with inlet port (2), the connector (1) connect with inlet port (2) cutting ferrule, sets on the right side of the inlet port (2)
It is equipped with sensing element shell (3), is provided with fixing end (4) on the right side of the sensing element shell (3), the fixing end (4)
Right end, which is connected with, lengthens measuring staff (5), and the right end for lengthening measuring staff (5) is connected with telescopic rod (6), the right side of the telescopic rod (6)
End is connected with lid (7), and the telescopic rod (6) and lid (7) pass through welded connecting.
2. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the composition of the connector (1)
It include attachment (11), fixing piece (12) and connector (13), the right upper portion of the attachment (11) is provided with fixing piece
(12), be provided with connector (13) on the upside of the right end of the fixing piece (12), the connector (1) by connector (13) with into
The connection of entrance (2) cutting ferrule.
3. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the composition of the inlet port (2)
It include that the first junction (21), fixed column (22) and the second junction (23), the right side of first junction (21) are arranged
Have fixed column (22), be provided with the second junction (23) on the right side of the fixed column (22), the inlet port (2) connects by first
Place (21) is met to connect with connector (1) cutting ferrule.
4. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the group for lengthening measuring staff (5)
At including elastic (51) and reset spring (52), the outside of the elastic (51) is provided with reset spring (52) for one week,
The lengthening measuring staff (5) is connect by elastic (51) with telescopic rod (6) cutting ferrule.
5. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the sensing element shell (3)
Be internally provided with sensing element, the inlet port (2) is linked together with sensing element shell (3) by socket, described quick
The shell of sensing unit shell (3) is made by 304 stainless steels.
6. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: described to lengthen the interior of measuring staff (5)
Portion is provided with elastic (51), and lengthening measuring staff (5) is fixedly connected with the interface of fixing end (4).
7. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the inside of the inlet port (2)
The rubber ring of the one week setting rubber ring in center, the left and right ends interface setting of the inlet port (2) stretches out one centimetre of interface.
8. a kind of high-precision optical fiber slit gauge according to claim 1, it is characterised in that: the connector (1) is one
Round table-like structure, the connector (1) is made by PP environment-friendly materials, and the size of the connector (1) is long three
Centimetre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543962.XU CN209673050U (en) | 2019-04-22 | 2019-04-22 | A kind of high-precision optical fiber slit gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543962.XU CN209673050U (en) | 2019-04-22 | 2019-04-22 | A kind of high-precision optical fiber slit gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209673050U true CN209673050U (en) | 2019-11-22 |
Family
ID=68574411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920543962.XU Expired - Fee Related CN209673050U (en) | 2019-04-22 | 2019-04-22 | A kind of high-precision optical fiber slit gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209673050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556634A (en) * | 2020-12-07 | 2021-03-26 | 贵州乌江清水河水电开发有限公司 | Joint meter monitoring system |
| CN112629430A (en) * | 2020-12-07 | 2021-04-09 | 贵州乌江清水河水电开发有限公司 | Novel optical fiber type joint meter |
-
2019
- 2019-04-22 CN CN201920543962.XU patent/CN209673050U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556634A (en) * | 2020-12-07 | 2021-03-26 | 贵州乌江清水河水电开发有限公司 | Joint meter monitoring system |
| CN112629430A (en) * | 2020-12-07 | 2021-04-09 | 贵州乌江清水河水电开发有限公司 | Novel optical fiber type joint meter |
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| 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: 20191122 |