CN207197650U - A kind of rack dynamic weighing sensor based on fiber grating - Google Patents
A kind of rack dynamic weighing sensor based on fiber grating Download PDFInfo
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- CN207197650U CN207197650U CN201721192342.3U CN201721192342U CN207197650U CN 207197650 U CN207197650 U CN 207197650U CN 201721192342 U CN201721192342 U CN 201721192342U CN 207197650 U CN207197650 U CN 207197650U
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- rack
- fiber grating
- dynamic weighing
- housing
- sensor based
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Abstract
The utility model belongs to Fibre Optical Sensor, Dynamic Weighing Technology technical field, more particularly to a kind of rack dynamic weighing sensor based on fiber grating；The rack dynamic weighing sensor based on fiber grating, including housing, rack, pressing plate and fiber grating；The housing is the body structure of upper end uncovered, and the rack is installed on the housing bottom, and multiple teeth of the rack are set along the rack length direction equi-spaced apart.The utility model provides a kind of rack dynamic weighing sensor based on fiber grating with new construction, the rack dynamic weighing sensor based on fiber grating is that by the dynamic weighing during road, automated production, can effectively improve measurement accuracy, antijamming capability, durability and the integration in Dynamic Weighing Technology field etc. performance；The sensor construction is simple, cost-effective, sensing element essential safety, and sensor is easily integrated low with hidden, electromagnetism interference, cost simple in construction etc..
Description
Technical field
The utility model belongs to Fibre Optical Sensor, Dynamic Weighing Technology technical field, more particularly to a kind of to be based on fiber grating
Rack dynamic weighing sensor.
Background technology
As the development of national economy, the rise of logistic industry and flourishing and passenger traffic industry development, highway transportation exist
In occupation of critical positions in various carriers, it is concerning people's property and life security.Especially highway is overweight, overcrowding etc. super
Load behavior, highway life-span, vehicle and passenger safety are had a strong impact on.Therefore, the supervision of Road Overload is always traffic row
The emphasis of industry.It is divided into static monitoring techniques and dynamic monitoring as overload monitoring, static monitoring techniques need vehicle deceleration even to stop
It can weigh, therefore static monitoring techniques are unfavorable for the hidden of the smooth and regulatory measure of traffic, therefore dynamic monitoring is at present most by joyous
The monitoring technology met.
Optical fiber sensing technology be last century the seventies along with fiber optic communication flourish and put forward, it with
Optical time domain reflection technology is intimately associated and emerged rapidly, and multiple fields are had been widely used for by the development of decades.With biography
The sensor of system is compared, and fibre optical sensor has lightweight, corrosion-resistant, and high temperature resistant is waterproof and dampproof, electromagnetism interference, easy of integration etc.
Series of advantages, therefore have much purposes in severe and complex environment.
For a long time, field is weighed always using piezoelectric, resistance strain gage, electric capacity etc. based on the quick of electric parameter measurement
Sensing unit, and this electric measurement method generally existing precision is low, poor repeatability, sensitivity is low, null offset is big and anti-dry
The defects of disturbing ability.
Utility model content
In order to solve problems of the prior art, the utility model provides a kind of new rack based on fiber grating
Dynamic weighing sensor, road, automated production process can be realized by being somebody's turn to do the rack dynamic weighing sensor based on fiber grating
In dynamic weighing, measurement accuracy, antijamming capability, durability and the integration in Dynamic Weighing Technology field can be effectively improved
Etc. performance.
The utility model concrete technical scheme is as follows：
The utility model provides a kind of rack dynamic weighing sensor based on fiber grating, including housing, rack, pressing plate
And fiber grating；The housing is the body structure of upper end uncovered, and the rack is installed on the housing inner bottom part, and described
Multiple teeth of rack are set along the rack length direction equi-spaced apart, and teeth groove, the gullet base are equipped with each tooth
Provided with optical fiber duct, the pressing plate is installed in the teeth groove, and the fiber grating includes an optical fiber and is engraved on the optical fiber
Multiple gratings, the optical fiber extends in the optical fiber duct, and along the shell length direction to both sides, and through described
The left and right sides wall of housing, the grating is between adjacent two teeth.
It is further to improve, it is tightly connected between the rack and the housing by seal, the seal includes
At least one first sealing strip and the second sealing strip, first sealing strip bottom in the housing, and it is described first close
Strip of paper used for sealing is provided with multiple projections set along the first sealing strip length direction equi-spaced apart, and second sealing strip is located at institute
State in the side wall of rack, and second sealing strip is provided with multiple grooves with the raised corresponding matching sealing.
It is further to improve, the optical fiber include fibre core, be arranged with the silica glass sleeve pipe outside the fibre core, armouring aluminum pipe,
Inner sheath and oversheath.
It is further to improve, waterproof layer, wearing layer, anticorrosive coat are sequentially coated with the oversheath from the outside to the core and is prevented
Fire bed.
It is further to improve, it is also filled with elastomer in the housing.
Further to improve, the width of the housing is 10mm~50mm.
Further to improve, the height of the housing is 15mm~100mm.
The beneficial effects of the utility model are as follows：
The utility model provides a kind of rack dynamic weighing sensor based on fiber grating with new construction, and this is based on
The rack dynamic weighing sensor of fiber grating is that by the dynamic weighing during road, automated production, can be effective
Improve measurement accuracy, antijamming capability, durability and the integration in Dynamic Weighing Technology field etc. performance；The sensor
It is simple in construction, cost-effective, sensing element essential safety, sensor be easily integrated with hidden, electromagnetism interference, be not easy burn into
Installation is cheap, easy maintenance, cost simple in construction are low etc., is especially suitable for severe and complex environment.
Brief description of the drawings
Fig. 1 is the sectional view of the rack dynamic weighing sensor based on fiber grating in the utility model；
Fig. 2 is the sectional view of A-A in Fig. 1；
Fig. 3 is the enlarged drawing of B in Fig. 1；
Fig. 4 is the front view of the utility model middle rack；
Fig. 5 is the side view of the utility model middle rack；
Fig. 6 is the structural representation of seal in the utility model；
Fig. 7 is the sectional view of optical fiber in the utility model.
Embodiment
The utility model is described in further detail with following examples below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of rack based on fiber grating provided by the utility model moves
State weighing sensor, it is characterised in that including housing 1, rack 2, pressing plate 3 and fiber grating 4；The housing 1 be upper end without
The body structure of lid, the rack 2 is installed on the inner bottom part of housing 1, and multiple teeth 5 of the rack 2 are grown along the rack 2
Spend direction equi-spaced apart to set, be equipped with teeth groove 6 on each tooth 5, the bottom of teeth groove 6 is provided with optical fiber duct 7, the pressing plate 3
It is installed in the teeth groove 6, the fiber grating 4 includes an optical fiber 41 and the multiple gratings 42 being engraved on the optical fiber 41,
The optical fiber 41 extends in the optical fiber duct 7, and along the length direction of housing 1 to both sides, and passes through the housing 1
Left and right sides wall, the grating 42 is between adjacent two teeth 5.Size in the utility model accompanying drawing is to have carried out suitably
Scaling.
The utility model provides a kind of rack dynamic weighing sensor based on fiber grating with new construction, and this is based on
The rack dynamic weighing sensor of fiber grating is that by the dynamic weighing during road, automated production, can be effective
Improve measurement accuracy, antijamming capability, durability and the integration in Dynamic Weighing Technology field etc. performance；The sensor
It is simple in construction, cost-effective, sensing element essential safety, sensor be easily integrated with hidden, electromagnetism interference, be not easy burn into
Installation is cheap, easy maintenance, cost simple in construction are low etc., is especially suitable for severe and complex environment.
Sensor in the utility model can realize the wheel re-computation, axle re-computation, vehicle restatement of transportation industry supervision
Calculation, wheelbase calculating, wheelbase calculating, the reckoning of meter shaft number, vehicle, speed calculating, driving flow rate calculation, illegal traffic record etc., also
It can be used for weighing in the automated productions such as colliery, grain depot；When automobile by when, wheel can be pressed in certain several fiber grating
On, pass through the wavelength change of the fiber grating, you can obtain taking turns weight information；The quantity for the fiber grating being had influence on by wheel
And changed wavelength, you can obtain the information of tyre width；Vehicle by when, the weight of two row's wheels of process is axle weight；
On highway, one sensor is installed every a segment distance, the time of sensor is passed through at the interval of adjacent two sensorses with same axle
Ratio be speed；The product of time and speed of the antero posterior axis Jing Guo same sensor are wheelbase；One car triggering passes
The number of sensor is the number of axle；It is vehicle weight by all axle weight sums of vehicle.
Connect referring to being sealed shown in Fig. 2, Fig. 6, between rack 2 described in the present embodiment and the housing 1 by seal 8
Connect, the seal 8 includes at least one sealing strip 82 of first sealing strip 81 and second, and first sealing strip 81 is located at described
Bottom in housing 1, and first sealing strip 81 is set provided with multiple along the length direction equi-spaced apart of the first sealing strip 81
The projection 83 put, second sealing strip 82 is in the side wall of the rack 2, and second sealing strip 82 is provided with multiple
With the groove 84 of the raised 83 corresponding matching sealing.
Then second sealing strip is arranged in use, the first sealing strip first is fixed on into housing bottom by the utility model
In the side wall of rack, then, rack is arranged on housing bottom, and groove and projection want corresponding matching to install, sealing effectiveness
It is good, it is not easy to damage, indirectly adds service life.
Seal is made of rubber or silica gel material in the utility model, good sealing effect, and is avoided on road surface
Water by gap enter housing in, the rack in housing and fiber grating are had an impact, so influence sensor it is sensitive
Degree；And second sealing strip and rack side wall using pasting connection or be detachably connected, when the second sealing strip serious wear,
A second new sealing strip need to be only changed, without renewing whole seal, material is saved, saves cost.
Shown in Figure 7, optical fiber 41 described in the present embodiment includes fibre core 411, is arranged and the silicon glass outside the fibre core 411
Glass sleeve pipe 412, armouring aluminum pipe 413, inner sheath 414 and oversheath 415.There is height using armouring aluminum pipe in the utility model
Permeability, there is good Magnetic Shielding Effectiveness, can be used for anti-glitch, and it is good and cheap, and inner sheath and oversheath are used for
Fibre core is protected, avoids fibre core from being pressed down, and avoid influence of the external environment to fibre core.
Waterproof layer, wearing layer, anticorrosive coat are sequentially coated with oversheath 415 described in the present embodiment from the outside to the core and is prevented
Fire bed.Waterproof layer, wearing layer, anticorrosive coat and fireprotection layer are coated in the utility model on oversheath, is to strengthen optical fiber
Waterproof, fire prevention, anti-corrosion and anti-wear performance, avoid external environment from having an impact optical fiber, so influence optical fiber it is sensitive
Degree, when being measured due to sensor, optical fiber can be by the frictional force of pressing plate and optical fiber duct, therefore to strengthen anti-wear performance.
Elastomer is also filled with housing 1 described in the present embodiment.The elastomer filled in the utility model in housing
Bitumastic type epoxy can be used, the grating installed in housing bottom can be protected.
The width of housing 1 described in the present embodiment is 10mm~50mm；The height of the housing 1 is 15mm~100mm.This
The width that the length of housing has road in utility model determines；Length is generally 10mm~50mm, is highly open to traffic maximum by road
Loading capacity decision, generally 15mm~100mm；Fiber grating distribution density calculates according to practical use, i.e., is resurveyed for wheel
Amount then lays closeer, generally 50mm~300mm, then wide compared with generally 300mm~bicycle road is dredged for axle remeasurement.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, however, make any change in its shape or structure, it is every that there is same as the present application or phase
Approximate technical scheme, all falls within the scope of protection of the utility model.
Claims (7)
1. a kind of rack dynamic weighing sensor based on fiber grating, it is characterised in that including housing (1), rack (2), pressure
Plate (3) and fiber grating (4)；The housing (1) is the body structure of upper end uncovered, and the rack (2) is installed on the shell
Body (1) inner bottom part, and multiple teeth (5) of the rack (2) are set along the rack (2) length direction equi-spaced apart, it is each described
Teeth groove (6) is equipped with tooth (5), teeth groove (6) bottom is provided with optical fiber duct (7), and the pressing plate (3) is installed on the teeth groove
(6) in, the fiber grating (4) includes an optical fiber (41) and the multiple gratings (42) being engraved on the optical fiber (41), described
Optical fiber (41) extends in the optical fiber duct (7), and along the housing (1) length direction to both sides, and passes through the housing
(1) left and right sides wall, the grating (42) is between adjacent two teeth (5).
2. the rack dynamic weighing sensor based on fiber grating as claimed in claim 1, it is characterised in that the rack
(2) it is tightly connected between the housing (1) by seal (8), the seal (8) includes at least one first sealing strip
(81) and the second sealing strip (82), first sealing strip (81) are located at the housing (1) interior bottom, and first sealing strip
(81) multiple projections (83) set along the first sealing strip (81) length direction equi-spaced apart, second sealing are provided with
Bar (82) is in the side wall of the rack (2), and second sealing strip (82) is provided with multiple right with raised (83)
Answer the groove (84) of fitted seal.
3. the rack dynamic weighing sensor based on fiber grating as claimed in claim 1, it is characterised in that the optical fiber
(41) include fibre core (411), be arranged silica glass sleeve pipe (412), armouring aluminum pipe (413), inner sheath outside with the fibre core (411)
And oversheath (415) (414).
4. the rack dynamic weighing sensor based on fiber grating as claimed in claim 3, it is characterised in that the oversheath
(415) waterproof layer, wearing layer, anticorrosive coat and fireprotection layer are sequentially coated with from the outside to the core.
5. the rack dynamic weighing sensor based on fiber grating as claimed in claim 1, it is characterised in that the housing
(1) elastomer is also filled with.
6. the rack dynamic weighing sensor based on fiber grating as claimed in claim 1, it is characterised in that the housing
(1) width is 10mm~50mm.
7. the rack dynamic weighing sensor based on fiber grating as claimed in claim 1, it is characterised in that the housing
(1) height is 15mm~100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192342.3U CN207197650U (en) | 2017-09-15 | 2017-09-15 | A kind of rack dynamic weighing sensor based on fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721192342.3U CN207197650U (en) | 2017-09-15 | 2017-09-15 | A kind of rack dynamic weighing sensor based on fiber grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197650U true CN207197650U (en) | 2018-04-06 |
Family
ID=61789408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721192342.3U Expired - Fee Related CN207197650U (en) | 2017-09-15 | 2017-09-15 | A kind of rack dynamic weighing sensor based on fiber grating |
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| Country | Link |
|---|---|
| CN (1) | CN207197650U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637993A (en) * | 2020-04-21 | 2020-09-08 | 同济大学 | Pressure detection device between can assembling layer and road surface layer pressure monitoring structure |
-
2017
- 2017-09-15 CN CN201721192342.3U patent/CN207197650U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637993A (en) * | 2020-04-21 | 2020-09-08 | 同济大学 | Pressure detection device between can assembling layer and road surface layer pressure monitoring structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210721 Address after: 100024 Room 202, building 1, Jintian film and Television Industrial Park, 1 Jinlin Road, Dougezhuang Township, Chaoyang District, Beijing Patentee after: BEIJING WEIYUN TECHNOLOGY Co.,Ltd. Address before: 100022 Room 403, unit 3, building 2, yard 9, Shuangqiao South Street, Chaoyang District, Beijing Patentee before: Huang Jinguo |
|
| 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: 20180406 Termination date: 20210915 |