CN202372282U - Force value monitoring device - Google Patents
Force value monitoring device Download PDFInfo
- Publication number
- CN202372282U CN202372282U CN2011204358351U CN201120435835U CN202372282U CN 202372282 U CN202372282 U CN 202372282U CN 2011204358351 U CN2011204358351 U CN 2011204358351U CN 201120435835 U CN201120435835 U CN 201120435835U CN 202372282 U CN202372282 U CN 202372282U
- Authority
- CN
- China
- Prior art keywords
- housing
- power value
- shaped form
- value monitoring
- monitoring device
- 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
Images
Landscapes
- Optical Transform (AREA)
Abstract
The utility model relates to a force value monitoring device, which comprises a shell and an optical fiber bend sensing unit. The shell is provided with an opening; a shipper rod is in slide fit with the opening; one end of the shipper rod is connected with a sliding plate positioned in the shell; the other end of the shipper rod is positioned outside the shell; the optical fiber bend sensing unit comprises a curved testing channel for ensuring signal optical fibers to pass through, and a testing unit connected with the signal optical fibers and used for synchronously testing, analyzing and processing the power variation of optical signals in the signal optical fibers; the curved testing channel comprises a curved bracket and a plurality of deformed teeth I and a plurality of deformed teeth II, which are continuously arranged on both opposite sides of the curved bracket; one or multiple curved channels for allowing the signal optical fibers to pass through are formed between the heads of the deformed teeth I and the deformed teeth II; the deformed teeth I and the deformed teeth II are correspondingly arranged on both sides of the signal optical fibers; the curved testing channel is arranged between the inner wall of the shell and the sliding plate; and the force value monitoring device has the advantages of high accuracy, anti-electromagnetic interference and low cost of a micro-bend optical fiber sensing technology.
Description
Technical field
The utility model relates to a kind of sensing device, is specifically related to a kind of power value monitoring device.
Background technology
The measurement of power value is one of the most general demand, and its application surface is boundless, and the production from the daily life to the industrial or agricultural all needs, and wherein using maximum is resistance strain gage, and its volume is little, cost is low, application is wide, but its shortcoming also is outstanding.Resistance strain gage relies on faint resistance variations to reflect the variation of power value; Exist problems such as nonlinear problem, temperature drift and zero migration; These need accurate bridge diagram to guarantee the accuracy of measuring, and when being in strong electromagnetic interference environment, can impact whole test circuit; This not only influences the stability of resistance strain gage test macro, simultaneously to big adverse effect is also arranged its serviceable life.In addition, also need take particular structural in inflammable and explosive place use, thereby increase cost.
Fiber grating is a kind of faster optical fiber sensing technology of development in recent years; With respect to traditional sensing device like the resistance strain gage type; Have precision height, long, anti-electromagnetic interference (EMI) of life-span; Be easy to and advantages such as microcomputer is connected, but some shortcomings also arranged, problem such as, monitoring equipment costliness little like dynamic range based on the power value sensor of fiber grating (being called for short FBG here).Conclusion part is just mentioned in " application of fiber grating in the prestress wire stress measurement " article that " photoelectron laser " 2005 the 16th volumes the 10th periodical is stepped on, " ..., when corresponding prestress steel twist line strain was 5457 μ ε, fracture appearred in FBG.Because the strain of prestress wire can reach more than the 10000 μ ε usually, so the attachment process of FBG need improve ... ".The strain value of the corresponding FBG fracture of mentioning in the above-mentioned article is the data in the experiment, and under the long-term environment for use of actual engineering, the strain value of corresponding FBG fracture is because problems such as stress corrosion can be little a lot.On the other hand, the coefficient of linear thermal expansion of steel is approximately higher than coefficient of linear thermal expansion two one magnitude based on the FBG of quartz material greatly, and this also is to need one of factor of considering.So; The improvement of the attachment process in the FBG strain monitoring engineering need be satisfied the requirement of many harsh conditions; Like precision of test result and linear problem; Long-term stability and the life problems of using, and the problem introduced of coefficient of linear thermal expansion difference, these have all limited its promoting the use of in actual engineering.
Summary of the invention
The utility model technical matters to be solved is to above-mentioned deficiency of the prior art; A kind of power value monitoring device is provided; Have the precision height of microbend fiber sensing technology, anti-electromagnetic interference (EMI), advantage that cost is low; And its light path is totally enclosed have good stable property, big dynamic range, long-life and anti-vibration characteristic, and its checkout equipment can use the modal light source-light power meter of fiber optic communication field just passable, make this power value monitoring device simple in structure, processing and fabricating convenient, cost is low and use-pattern is flexible, highly sensitive, result of use good; And can be applicable to inflammable and explosive place; Reduce the possibility occurrence of security incident, use value is high, and adaptability is strong.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of power value monitoring device; Comprise a housing and a fibre-optical bending sensing unit; One opening is arranged on described housing, and carriage release lever and opening are slidingly matched, and an end of described carriage release lever is connected with the slide plate that is positioned at described housing; The other end of described carriage release lever is positioned at outside the housing, on described housing, with being positioned at fixing or coupling arrangement is installed on the carriage release lever outside the housing; Said fibre-optical bending sensing unit comprises and supplies shaped form TCH test channel that signal optical fibre passes and join with signal optical fibre and the optical signal power variable quantity in the signal optical fibre carried out the test cell of synchronism detection and analyzing and processing; A plurality of distortion teeth one and a plurality of distortion teeth two that said shaped form TCH test channel comprises curved bracket and is laid in relative both sides on the said curved bracket continuously; Form the shaped form passage that supplies one or more signal optical fibres to pass between corresponding laying of said a plurality of distortion tooth one and a plurality of distortion tooth two interleaved and the head of the two, said distortion tooth one and distortion tooth two correspondences are laid in the both sides of signal optical fibre; Between described inner walls and slide plate, be mounted with the shaped form TCH test channel.
Between described slide plate and inner walls, also be mounted with the auxiliary spring parallelly connected with the shaped form TCH test channel.
Between described slide plate two faces relative with enclosure interior, settling respectively is auxiliary spring and shaped form TCH test channel.
Described auxiliary spring is the combination of butterfly spring or butterfly spring.
Said curved bracket is shaped form housing, spring, corrugated tube or cylinder.
Outside the described test cell housing, the part of described signal optical fibre is passed the opening on the housing wall and is connected with test cell.
Between described inner walls and slide plate, be mounted with the counterbalance spring that is connected in series with the shaped form TCH test channel.
On described carriage release lever, be mounted with the anti-device of turning round.
Fluted in described inner walls, fin is arranged on the slide plate, described groove and fin are to be slidingly matched.
The utility model compared with prior art has the following advantages:
1, simple in structure, processing and fabricating is easy, input cost is low and use-pattern is flexible, highly sensitive.
2, through adopting monitoring device can improve measuring accuracy, and have good anti-electromagnetic interference capability, corrosion resistance, have good shock resistance simultaneously, be suitable for actual engineering-environment condition based on the optical fiber micro-bending sensing technology.
3, its totally enclosed light path detection has improved stability, the reliability of Fibre Optical Sensor unit, has increased the security of power value sensing device, and has been suitable for being applied in inflammable and explosive place.
4, adopt special optical fiber serviceable life of extended fiber sensing unit significantly,, can reduce maintenance cost greatly as adopting the carbon coated fiber in 200 years Design Theory life-spans.
5, power value sensing device of the present invention has bigger dynamic range, and changes different auxiliary springs and can detect different power value scopes, has more wide application prospect.
In sum; The utility model is simple in structure, reasonable in design, processing and fabricating is convenient, cost is low and use-pattern is flexible, highly sensitive, the monitoring dynamic range is big, practical value is high, and is suitable for inflammable and explosive and the chamber electromagnetic interference environment; Prevent the generation of accident, have broad application prospects.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of shaped form TCH test channel among the embodiment 1.
Fig. 3 is the structural representation of curved bracket among the embodiment 1.
Fig. 4 is the structural representation of shaped form TCH test channel among the embodiment 2.
Fig. 5 is the structural representation of shaped form TCH test channel among the embodiment 3.
Fig. 6 is the local structure for amplifying synoptic diagram at A place among Fig. 5.
Fig. 7 is the structural representation of shaped form TCH test channel among the embodiment 4.
Fig. 8 is that Fig. 7 is along A-A ' cross-sectional view.
The structural representation of Fig. 9 the utility model embodiment 5.
The structural representation of Figure 10 the utility model embodiment 6.
The structural representation of Figure 11 the utility model embodiment 7.
Description of reference numerals:
The 1-optical cable; The 2-housing; The 3-top cover;
4-1-is out of shape tooth one; 4-2-is out of shape tooth two;
The 5-test cell; 6-shaped form TCH test channel; The 7-pulling eye; The 8-draw ring;
The 9-auxiliary spring; The 10-carriage release lever; The 11-counterbalance spring; The 12-slide plate; The 13-fin;
The anti-device of turning round of 14-; The 15-butterfly spring; The 16-groove; 19-shaped form housing;
The 33-signal optical fibre; The 38-spring; The 40-corrugated tube;
The 42-tube wall; The 36-cylinder; The 37-slit.
Embodiment
Like Fig. 1, a kind of power value monitoring device shown in 2 and 3, comprise a housing 2, top cover 3 is arranged on the housing 2, also comprise a fibre-optical bending sensing unit; On described housing 2, an opening is arranged; A carriage release lever 10 is slidingly matched with opening; One end of described carriage release lever 10 is connected with the slide plate that is positioned at described housing 2 12; The other end of described carriage release lever 10 is positioned at outside the housing 2, on described housing 2, with being positioned at pulling eye 7 is installed on the carriage release lever 10 outside the housing 2; Said fibre-optical bending sensing unit comprises and supplies shaped form TCH test channel 6 that signal optical fibre 33 passes and join with signal optical fibre 33 and the optical signal power variable quantity in the signal optical fibre 33 carried out the test cell 5 of synchronism detection and analyzing and processing; Preferably, test cell 5 is positioned at beyond the housing 2; A plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 that said shaped form TCH test channel 6 comprises curved bracket and is laid in relative both sides on the said curved bracket continuously; Form the shaped form passage that supplies one or more signal optical fibres 33 to pass between corresponding laying of said a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 interleaved and the head of the two, said distortion tooth one 4-1 and distortion tooth two 4-2 correspondences are laid in the both sides of signal optical fibre 33; Be mounted with shaped form TCH test channel 6 at described housing 2 inwalls and 12 on slide plate.
In the present embodiment, curved bracket is a shaped form housing 19, and a plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 correspondences are laid on the inwall of shaped form housing 19, and the part of signal optical fibre 33 is passed housing 2 and is connected with test cell 5 through optical cable 1.Preferably, also be mounted with the counterbalance spring 11 that is connected in series with shaped form TCH test channel 6 in housing 2 inside, the other end of counterbalance spring 11 and housing 2 inwalls join.Because the existence of counterbalance spring 11 can further increase the scope that carriage release lever 10 can be to be detected, just can detect the bigger displacement of driving stem 10.
Preferably, on described carriage release lever 10, be mounted with and anti-turn round device 14, when the revolving force value, turn round the power value that device 14 is eliminated rotation through anti-.
Preferably, fluted 16 at described housing 2 inwalls, fin 13 is arranged on the slide plate 12, described groove 16 is to be slidingly matched with fin 13.
Preferably, be filled with material water-proof material around the described signal optical fibre 33.Like the greasy for preventing water or the adhesive that blocks water, prevent the erosion of hydrone or other impurity to signal optical fibre 33, prolong the serviceable life of signal optical fibre 33.
Preferably, described signal optical fibre 33 can adopt special optical fibers such as carbon coated fiber, pi coated fiber, metallic coating signal optical fibre, thin footpath optical fiber.
As shown in Figure 4; What present embodiment and embodiment 1 were different is: the curved bracket that comprises in the said shaped form TCH test channel 6 is a spring 38; A plurality of distortion tooth one 4-1 and a plurality of distortion tooth two 4-2 correspondences are laid in the spring 38 between the two adjacent rings spring wire, and distortion tooth one 4-1 and the interlaced laying of distortion tooth two 4-2.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
As illustrated in Figures 5 and 6; What present embodiment and embodiment 1 were different is: the curved bracket that comprises in the said shaped form TCH test channel 6 is a corrugated tube 40; In distortion tooth one 4-1 and distortion tooth two 4-2 correspondences are laid on the tube wall 42 of corrugated tube 40 on the two opposite side surfaces of recess, and distortion tooth one 4-1 and the interlaced laying of distortion tooth two 4-2.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
Embodiment 4
Shown in Fig. 7 and 8, what present embodiment and embodiment 1 were different is: said curved bracket 10 is cylinder 36, on the sidewall of cylinder 36, is distributed with slit 37, and 37 both sides up and down are laid with distortion tooth one 4-1 and distortion tooth two 4-2 of interlaced correspondence in the slit.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
As shown in Figure 9, what present embodiment and embodiment 1 were different is: between described slide plate 12 and housing 2 inwalls, also be mounted with the auxiliary spring 9 parallelly connected with shaped form TCH test channel 6.Because the difference of power value F scope, can select suitable auxiliary spring 9 to make the scope that the distortion of shaped form TCH test channel 6 can adaptive faculty value F, thereby make test result more accurate.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
Shown in figure 10, what present embodiment and embodiment 1 were different is: between described slide plate 12 and housing 2 inwalls, also be mounted with the combination that constitutes with shaped form TCH test channel 6 parallelly connected butterfly springs 15.Butterfly spring 15 has the advantages that the holding capacity value is big, distortion is little, can monitor bigger power value F through the combination of using butterfly spring 15 to constitute.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
Shown in figure 11, what present embodiment and embodiment 1 were different is: settling respectively between inner relative two faces of described slide plate 12 and housing 2 is auxiliary spring 9 and shaped form TCH test channel 6.Thereby can be that pressure is done the time spent monitoring to power value F.In the present embodiment, the structure of remainder, annexation and principle of work are all identical with embodiment 1.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.
Claims (9)
1. power value monitoring device; It is characterized in that: comprise a housing and a fibre-optical bending sensing unit; One opening is arranged on described housing, and carriage release lever and opening are slidingly matched, and an end of described carriage release lever is connected with the slide plate that is positioned at described housing; The other end of described carriage release lever is positioned at outside the housing, on described housing, with being positioned at fixing or coupling arrangement is installed on the carriage release lever outside the housing; Said fibre-optical bending sensing unit comprises and supplies shaped form TCH test channel that signal optical fibre passes and join with signal optical fibre and the optical signal power variable quantity in the signal optical fibre carried out the test cell of synchronism detection and analyzing and processing; A plurality of distortion teeth one and a plurality of distortion teeth two that said shaped form TCH test channel comprises curved bracket and is laid in relative both sides on the said curved bracket continuously; Form the shaped form passage that supplies one or more signal optical fibres to pass between corresponding laying of said a plurality of distortion tooth one and a plurality of distortion tooth two interleaved and the head of the two, said distortion tooth one and distortion tooth two correspondences are laid in the both sides of signal optical fibre; Between described inner walls and slide plate, be mounted with the shaped form TCH test channel.
2. a kind of power value monitoring device according to claim 1 is characterized in that: between described slide plate and inner walls, also be mounted with the auxiliary spring parallelly connected with the shaped form TCH test channel.
3. a kind of power value monitoring device according to claim 1 is characterized in that: between described slide plate two faces relative with enclosure interior, settling respectively is auxiliary spring and shaped form TCH test channel.
4. according to claim 2 or 3 described a kind of power value monitoring devices, it is characterized in that: described auxiliary spring is the combination of butterfly spring or butterfly spring.
5. according to 4 described a kind of power value monitoring devices of claim, it is characterized in that: said curved bracket is shaped form housing, spring, corrugated tube or cylinder.
6. a kind of power value monitoring device according to claim 1 is characterized in that: outside the described test cell housing, the part of described signal optical fibre is passed the opening on the housing wall and is connected with test cell.
7. a kind of power value monitoring device according to claim 1 is characterized in that: between described inner walls and slide plate, be mounted with the counterbalance spring that is connected in series with the shaped form TCH test channel.
8. a kind of power value monitoring device according to claim 1 is characterized in that: on described carriage release lever, be mounted with the anti-device of turning round.
9. a kind of power value monitoring device according to claim 1 is characterized in that: fluted in described inner walls, fin is arranged on the slide plate, and described groove and fin are to be slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358351U CN202372282U (en) | 2011-11-07 | 2011-11-07 | Force value monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204358351U CN202372282U (en) | 2011-11-07 | 2011-11-07 | Force value monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372282U true CN202372282U (en) | 2012-08-08 |
Family
ID=46595979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204358351U Expired - Fee Related CN202372282U (en) | 2011-11-07 | 2011-11-07 | Force value monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10145681B2 (en) | 2016-07-19 | 2018-12-04 | Corning Incorporated | Brillouin-based distributed bend fiber sensor and method for using same |
| CN117738386A (en) * | 2024-02-18 | 2024-03-22 | 北京市建筑工程研究院有限责任公司 | Fiber bragg grating intelligent steel strand and prestress structure member for building |
-
2011
- 2011-11-07 CN CN2011204358351U patent/CN202372282U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10145681B2 (en) | 2016-07-19 | 2018-12-04 | Corning Incorporated | Brillouin-based distributed bend fiber sensor and method for using same |
| CN117738386A (en) * | 2024-02-18 | 2024-03-22 | 北京市建筑工程研究院有限责任公司 | Fiber bragg grating intelligent steel strand and prestress structure member for building |
| CN117738386B (en) * | 2024-02-18 | 2024-05-07 | 北京市建筑工程研究院有限责任公司 | Fiber bragg grating intelligent steel strand and prestress structure member for building |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109196394B (en) | Displacement detection device using fiber bragg grating sensor and method for adjusting sensitivity and durability of displacement detection device | |
| CN1316227C (en) | Optical fiber grating displacement sensor | |
| CN103278101B (en) | Based on the integrated strain gauge means of fiber Bragg grating strain sensor | |
| CN103076109B (en) | Magnetic type flaky optical fiber grating temperature sensor | |
| CN202066479U (en) | Linear fiber bragg grating displacement meter | |
| CN103162880A (en) | Prestressed anchor cable stress monitoring device | |
| CN203908504U (en) | Fiber grating displacement apparatus having function of temperature measurement | |
| US11209472B2 (en) | Fully distributed magnetic adsorption multi-parameter sensing cable | |
| CN203191143U (en) | Fiber grating sensor used for measuring pressure of liquid | |
| CN206038093U (en) | Liquid level measurement device of wide range high accuracy | |
| CN111537119B (en) | High-precision fiber grating displacement meter with temperature compensation | |
| Johny et al. | Investigation of positioning of FBG sensors for smart monitoring of oil and gas subsea structures | |
| US20180172536A1 (en) | FIBER OPTIC PRESSURE APPARATUS, METHODS, and APPLICATIONS | |
| CN202372282U (en) | Force value monitoring device | |
| CN103091011A (en) | Optical fiber type force value monitoring device | |
| EP3842766A1 (en) | Apparatus for measuring displacement of slope surface by using optical fiber bragg grating sensor | |
| CN110726377A (en) | Four-fiber-core fiber grating sensor for measuring tunnel surface morphology | |
| CN103134626A (en) | Inhaul cable stress monitoring device | |
| CN202485696U (en) | Cylindrical microbend modulator and optical fiber microbend sensor with same | |
| CN203396535U (en) | Fiber bragg grating pressure sensor with temperature compensation | |
| CN201945404U (en) | Sensor based on three-degree inclined multimode fiber bragg grating (MFBG) for measuring temperature and refractive index simultaneously | |
| RU2420719C1 (en) | Fibre-optic pressure sensor | |
| CN204101777U (en) | The platypelloid type band-shaped sensing optical cable of monitor temperature and strain simultaneously | |
| CN206710014U (en) | FBG pressure sensors based on all-metalization encapsulation | |
| CN102374872A (en) | Optical fiber sensing device based on functional material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20121107 |