CN106248150B - External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate - Google Patents
External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate Download PDFInfo
- Publication number
- CN106248150B CN106248150B CN201610884910.XA CN201610884910A CN106248150B CN 106248150 B CN106248150 B CN 106248150B CN 201610884910 A CN201610884910 A CN 201610884910A CN 106248150 B CN106248150 B CN 106248150B
- Authority
- CN
- China
- Prior art keywords
- filter plate
- chamber filter
- fiber
- strain
- grating
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
The invention discloses a kind of external labeling type fiber-optic grating sensor, detection system and methods applied to chamber filter plate, present invention firstly provides a kind of using glass fiber reinforced epoxy resin composite material as the fiber-optic grating sensor of the external labeling type of substrate, can accurately monitor the small strain at chamber filter plate frame；Meanwhile the intelligent health monitoring system of the chamber filter plate based on sensor is stated the present invention provides more than one, health status monitoring in real time, reliable, whole can be carried out based on the small strain at chamber filter plate frame.The present invention can directly paste on existing chamber filter plate finished product to be arranged, it does not need to redesign mold and its moulding process, the outer patch of sensor and wiring are all after chamber filter plate machining, using simplicity, strong operability, it is at low cost, it is applied widely, the chamber filter plate of different model specification, different purposes can be quickly applied to.
Description
Technical field
The present invention relates to a kind of external labeling type fiber-optic grating sensor, detection system and methods applied to chamber filter plate.
Background technique
Chamber-type press filter is to provide the equipment that filter pressure realizes filtering by feed pump.Chamber-type press filter is lost when feeding
Few, the rate of filtration is fast, and high temperature resistant and high pressure, good seal performance, Washing of Filter Cake is uniform, and moisture content is low, is suitable for most of solid
Liquid separation industries.
Chamber filter plate working environment used by chamber-type press filter is severe, by filtrate, the high speed of water flow during military service
High pressure, which is washed away, and filter plate pressure at both sides is unbalanced will lead to different degrees of damage.If the chamber filter plate of damage is replaced not in time
Then entire filter press may be caused further to damage.However the impaired of chamber filter plate can not be usually grasped in production in real time
Situation, can only be after occurring irremediable loss by the chamber filter plate of experience investigation damage.
It can be seen that the real time health monitoring of chamber filter plate is particularly significant.Health monitoring is carried out with true to its usage state
Production safety is protected, early warning is carried out to filter plate of problems, loss caused by filter plate destroys can be greatly reduced.Meanwhile passing through
Analyze also can determine that equipment user in use and is from the chamber filter plate usage process data of collection in worksite, record, preservation
It is no there are unlawful practice, the product quality dispute being effectively prevented between filter press manufacturer and user.
Common health monitor method is mainly ray, ultrasound, infrared, vortex, microwave, laser hologram photography technology, mesh
Some nondestructive means such as inspection survey.The characteristics of these conventional lossless detection methods is usually offline, static, passively.It arrives
So far, it is restricted by multi-party surface technology, China not yet reliably realizes real time health monitoring and remaining longevity to chamber filter plate
Life assessment.
The monitoring technology that fiber-optic grating sensor is buried in chamber filter plate, can monitor the work shape of chamber filter plate on-line
State in time, comprehensively finds the damage that chamber filter plate occurs.But it applies and has the following problems:
(1) the interior fiber-optic grating sensor that buries then needs to remake filtering plate mold, adjustment moulding process in chamber filter plate,
Make with high costs, the increased risk of technology upgrading；
(2) fiber-optic grating sensor being embedded in the forming process of chamber filter plate complexity easily misplaces, generates shape distortion
It concentrates with stress and even damages, poor controllability, rejection rate increases, and technical risk is big；
(3) the grid region quantity of the array optical fiber grating sensor buried in is big, significantly increases the crucial device of technology upgrading
Part cost；
(4) chamber filter plate frame after molding such as is planed, is drilled at the machining, and the fiber grating of built-in type passes
Sensor connector brings inconvenience to these processing, makes complex procedures, increases filter plate manufacturing cost；
(5) once the interior fiber-optic grating sensor inactivation buried, then do not repair, replace the possibility of these inactive sensors
Property.
The monitoring technology of outer patch fiber-optic grating sensor on chamber filter plate, can not only monitor the work of chamber filter plate on-line
Make state, in time, comprehensively finds the damage that chamber filter plate occurs, and can be to avoid above-mentioned built-in type optical fiber grating sensing
The technological deficiency of device.It can be seen that the fiber-optic grating sensor of external labeling type compares in the non-destructive testing of chamber filter plate health status
The fiber-optic grating sensor of built-in type has superiority.But existing surface mount formula fiber-optic grating sensor is by optical fiber
Grating is pasted onto first on matrix substrate or notched metal substrate, is made into sensor and is used after protecting connector.
And the sensor of matrix substrate package is since the strength and stiffness of matrix are lower, easy generation is loose or creep, non-refractory, so
It is unable to satisfy the long term high temperature environment and bad working environments of filter press.The preparation process that metal substrate encapsulates patch is complicated, itself
Mass density is high, and metal substrate itself modulus is much larger than short glass fiber reinforced polypropylene base composite wood used in chamber filter plate
The modulus of material causes the accuracy of its transmitting strain to be greatly lowered, and then the measuring accuracy of fiber grating is caused to be unable to satisfy
It is required that.
In addition, chamber filter plate is during the work time, rough working surface is constantly by high pressure-temperature water flow etc.
Wash away and squeeze, sensor can not be arranged, therefore the sensor patch of external labeling type can only be pasted on the outer of chamber filter plate frame
Surface, to the detection accuracy of sensor and sensitivity, more stringent requirements are proposed for this.Due to being pasted on chamber filter plate frame appearance
The sensor in face can only directly monitor the strain and temperature conditions of frame portion, can not directly acquire the strain of chamber filter plate entirety
Field and temperature field, it is even more impossible to directly know the degree of impairment of chamber filter plate, therefore existing detecting and analysing system cannot be still based on
The strain of filter plate frame, temperature conditions carry out real-time monitoring to the holistic health state of chamber filter plate.
Summary of the invention
The present invention to solve the above-mentioned problems, proposes a kind of external labeling type optical fiber grating sensing applied to chamber filter plate
Device, detection system and method, specifically, present invention firstly provides one kind with glass fiber reinforced epoxy resin composite material
For the fiber-optic grating sensor of the external labeling type of substrate, the small strain at chamber filter plate frame can be accurately monitored；Meanwhile this
Invention provides more than one intelligent health monitoring systems for stating the chamber filter plate based on sensor, can be based on chamber filter plate
Small strain at frame carries out health status monitoring in real time, reliable, whole.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of external labeling type fiber-optic grating sensor applied to chamber filter plate, including be pasted on chamber filter plate in matrix form
Several optical fiber Bragg grating encapsulation patches of arrangement；
The optical fiber Bragg grating encapsulation patch is arranged on substrate using glass fiber reinforced epoxy resin composite material as substrate
Fiber grating and conduction optical fiber, fiber grating and substrate pass through vacuum auxiliary pouring liquid-state epoxy resin and impregnated glass fiber
Then cured technique is packaged together cloth.
The fiber grating of the encapsulation can be single strain monitoring grating, may also comprise temperature monitoring grating.
The temperature-compensating that the temperature monitoring grating can be used for temperature monitoring when can also be used for strain monitoring.
The fiber grating patch is pasted with the thermosetting resins such as epoxy resin, unsaturated polyester (UP) and chamber filter plate.
A kind of chamber filter plate intelligent health monitoring system, the external labeling type optical fiber grating sensing including being applied to chamber filter plate fill
It sets, intelligent analysis module, warning module, display module and chamber filter plate damage data library, wherein external labeling type optical fiber grating sensing
The fiber-optic grating sensor of device is paved in the outside of chamber filter plate frame, the external labeling type optical fiber light applied to chamber filter plate
Grid sensing device, including light source, external labeling type fiber-optic grating sensor, fiber coupler and fiber Bragg grating (FBG) demodulator, the light source
Continuous frequency modulation laser is generated, laser signal enters the fiber grating of external labeling type fiber-optic grating sensor by lead, is formed and is stablized
Reflection signal, external labeling type fiber-optic grating sensor is sequentially connected fiber coupler and fiber Bragg grating (FBG) demodulator by optical fiber, right
The strain of chamber filter plate and/or temperature carry out real-time monitoring and signal demodulation；
The intelligent analysis module analyzes the degree of injury of chamber filter plate according to the parameter information of acquisition, and warning module is read
The degree of injury of chamber filter plate is alarmed when more than alarm threshold, and display module carries out the degree of impairment of chamber filter plate real
When Dynamically Announce.
There are two the fiber couplers, and laser signal is divided into two-way, is transferred to light by a fiber coupler respectively
The both ends of fine grating demodulation instrument form two ports.
The light source is the built-in light source of independent light source or fiber Bragg grating (FBG) demodulator, generates continuous frequency modulation laser, laser letter
Number fiber-optic grating sensor is entered by optical fiber, forms stable reflection signal.
The intelligent analysis module, including strain field and temperature field analysis device, fatigue accumulation arithmetic unit, filter plate non-destructive tests
Arithmetic unit and residual intensity arithmetic unit, in which:
The strain field and temperature field analysis device are configured as the real time temperature inputted according to sensing device and/or strain
Data carry out the real-time temperature field and/or strain field that operation obtains chamber filter plate, and result is exported to display module, and save extremely
Chamber filter plate damage data library forms chamber filter plate history floor data.
The fatigue accumulation arithmetic unit is configured as in conjunction with the particular attributes such as the creep and relaxation of chamber filter plate material, base
Fatigue mechanisms are carried out in rain flow method, read the history floor data of chamber filter plate in chamber filter plate damage data library, meter
Calculate the fatigue damage of filter plate.
The chamber filter plate non-destructive tests arithmetic unit, is configured as the monitoring data according to chamber filter plate, by artificial mind
Pattern recognition function through network matches the stress-strain state of filter plate, realizes non-destructive tests.
The residual intensity arithmetic unit is configured as carrying out residual intensity calculating according to chamber filter plate degree of injury and predict
The remaining life of chamber filter plate exports result to display module and warning module.
Chamber filter plate damage data library, is configured as Binding experiment data, is being occurred using finite element software simulation
Different type, different parts damage when filter plate strain everywhere and the material in damage fingerprint library and chamber filter plate established
Learn data and history floor data.
The display module, comprising:
Model loading module is configured as reading threedimensional model formatted file, extracts the finite element model of chamber filter plate, together
When model can be rotated, scaled or be moved, from multiple directions observing and nursing；
Data loading module is configured as communicating with intelligent analysis module, reads the real-time field of intelligent analysis module output
Distributed data and remaining life data；
Couple display module, be configured as by real-time field distribution data, remaining life data chamber filter plate three-dimensional mould
Corresponding display in type.
The warning module, including healthy threshold value setting interface and emergency alarm bell.Healthy threshold value can be set as needed in user,
When the remaining life exported from intelligent analysis module to healthy early warning module is lower than healthy threshold value, emergency alarm bell is sounded an alarm.
A kind of analysis and early warning method of chamber filter plate, comprising the following steps:
(1) finite element model of pressure filter van-type filter pad is established, the stress of chamber filter plate in the operating condition is analyzed,
The strain field variation sensitive spot being located on the outside of chamber filter plate is found out, so that it is determined that the installation position of fiber-optic grating sensor and side
To；
(2) connecting detection system acquires the temperature and/or strain parameter of chamber filter plate；
(3) real-time temperature field and strain field for determining chamber filter plate according to the collected data, in conjunction with its history floor data
It calculates, judge its degree of injury and residual intensity, predict the remaining life of chamber filter plate；
(4) it when remaining life is lower than healthy threshold value, alarms.
The invention has the benefit that
(1) it can directly paste and arrange on existing chamber filter plate finished product, not need to redesign mold and its moulding process,
The outer patch of sensor and wiring are all after chamber filter plate machining, and using simplicity, strong operability is at low cost, are applicable in
Range is wide, can be quickly applied to the chamber filter plate of different model specification, different purposes；
(2) outer patch is technically simple, mature, and controllability is strong；Number of sensors is few, Primary Component cost needed for technology upgrading
It is low；
(3) there is weight by the fiber-optic grating sensor of substrate package of glass fiber reinforced epoxy resin composite material
Gently, the features such as strength and stiffness height, endurance, transparency are high, anti-electromagnetic interference capability is strong；
(4) glass fiber reinforced epoxy resin composite material have with modulus similar in chamber filter plate own material, can
The strain of more acurrate reliably real-time monitoring chamber filter plate and state of temperature；
(5) strain temperature of chamber filter plate entirety is obtained by the strain and temperature conditions operation that monitor chamber filter plate frame
, and with threedimensional model Dynamically Announce, intellectual analysis is carried out according to monitoring data, obtains health status and the residue longevity of filter plate
Life, issues early warning in time, reliable decision-making foundation is provided to equipment supplier and user, to effectively chamber filter plate be avoided to damage
Brought property loss improves equipment application efficiency, has very high economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical fiber Bragg grating encapsulation patch.
Fig. 2 is the three-dimensional axonometric drawing of optical fiber Bragg grating encapsulation patch.
Fig. 3 is the fiber-optic grating sensor monitoring system schematic for being affixed on pressure filter van-type filter pad outside.
Fig. 4 is the fiber-optic grating sensor monitoring systematic difference method schematic diagram for being affixed on pressure filter van-type filter pad outside.
Fig. 5 is the raster center wavelength-pressure loading detection for being affixed on the fiber-optic grating sensor of pressure filter van-type filter pad outside
As a result.
Wherein, 1, galss fiber reinforced resin protective film, 2, conduction optical fiber, 3, galss fiber reinforced resin substrate, 4, light
Grid region.
Specific embodiment:
The invention will be further described with embodiment with reference to the accompanying drawing.
As depicted in figs. 1 and 2, the present invention provides a kind of galss fiber reinforced resin substrate formula optical fiber Bragg grating encapsulation patch,
Including conductive glass fiber-reinforced resin protective film 1, conduction optical fiber 2, galss fiber reinforced resin substrate 3, grating region 4.
Galss fiber reinforced resin protective film 1 is passed through above conduction optical fiber 2 and galss fiber reinforced resin substrate
Layer of glass reinforced resin film obtained by vacuum auxiliary pouring technique, the liquid resin infusion glass fibre being poured
Then cloth is shaped to an entirety by co-curing behavior and galss fiber reinforced resin substrate 3.Thus the fiber grating prepared
Encapsulation patch bottom surface is smooth and upper surface is formed with fiber grating arrangement nature, preferably protects optical fiber light convenient for glass fabric
Grid and accurately transmitting strain.
External labeling type fiber-optic grating sensor is connected in series by m encapsulation patch for being packaged with n fiber gratings arranged side by side, and 1
≤ n≤10,1≤m≤60.The encapsulation patch is packaged with n root light using glass fiber reinforced epoxy resin composite material as substrate
Fine grating can detect the parameter to be measured such as temperature and strain simultaneously, can also individually detect temperature or strain.
As shown in figure 3, the fiber-optic grating sensor application system for being affixed on chamber filter plate outside include optical fiber grating sensing module,
Intelligent analysis module, real-time visual module and healthy early warning module.
Optical fiber grating sensing module includes light source, fiber-optic grating sensor, fiber coupler, fiber Bragg grating (FBG) demodulator.Its
In, light source can be arbitrary source or be built in fiber Bragg grating (FBG) demodulator, preferably molded-in in fiber Bragg grating (FBG) demodulator
Light source, generate continuous frequency modulation laser, laser signal enters fiber grating by lead, form stable reflection signal.Optical fiber
Grating sensor is connected in series by several optical fiber Bragg grating encapsulation patches.Fiber coupler is fiber grating signal coupler, is had
The characteristic of excellent wavelength selection ability and multiport is fiber coupler compact-sized, that loss is small, polarization is unrelated.Optical fiber
Grating demodulation instrument is middling speed or high speed optic fiber grating wavelength (FBG) demodulator, and the demodulation scheme with multi-channel parallel realizes that signal is fast
Speed demodulation, meets health monitoring needs, can be with grating signal of the fast demodulation filter plate under working environment.Light source, fiber grating
Sensor, fiber coupler are connected by optical fiber between fiber Bragg grating (FBG) demodulator, and transmission signal is optical signal.
Fiber-optic grating sensor is paved in the outside of chamber filter plate frame.
There are two fiber couplers, and optical signal is divided into two-way, is transferred to fiber grating by a fiber coupler respectively
The both ends of sensor module form two ports.
Optical signal is transferred to one end of fiber-optic grating sensor component by a fiber coupler, forms one and has both light
The port of incident and light reflection.
Light source is the built-in light source of fiber Bragg grating (FBG) demodulator, generates continuous frequency modulation laser, and laser signal is entered by optical fiber
Fiber-optic grating sensor forms stable reflection signal.
Optical fiber Bragg grating encapsulation patch is glued using the thermosetting resins such as epoxy resin, unsaturated polyester (UP) and chamber filter plate
Patch is coated with the thermosetting resins such as one layer of epoxy resin, unsaturated polyester (UP) to ensure that fiber grating probe unit is being disliked after stickup
Survival rate under bad operating condition simultaneously guarantees the accuracy of itself and filter plate strain transmitting and the consistency of temperature.
Intelligent analysis module, including chamber filter plate damage data library and breakdown diagnosis software.
Materialogy data of the filter plate damage data library comprising chamber filter plate and its history floor data and Binding experiment number
According to, using finite element software simulate occur different type, different parts damage when, the strain of filter plate everywhere, the damage of foundation
Fingerprint base.
Breakdown diagnosis software is that the chamber filter plate that is applied to based on Finite Element Simulation Software, analysis of fatigue software development damages
The special-purpose software of analysis, including strain field, temperature field analysis device, fatigue accumulation arithmetic unit, chamber filter plate non-destructive tests arithmetic unit
With residual intensity arithmetic unit.Strain field, temperature field analysis device by the real time temperature that obtains to optical fiber grating sensing module and are answered
Parameter obtains the real-time temperature field and strain field of chamber filter plate according to operation is carried out, and result is exported to real-time visual module, and
It saves to database, forms filter plate history floor data.Fatigue accumulation arithmetic unit passes through the history floor data meter of chamber filter plate
Calculate, judge the fatigue damage of chamber filter plate.Chamber filter plate non-destructive tests arithmetic unit, according to chamber filter plate monitoring data, by people
The pattern recognition function of artificial neural networks matches the stress-strain state of filter plate, realizes non-destructive tests.Residual intensity fortune
Device is calculated to carry out residual intensity calculating according to chamber filter plate degree of injury and predict the remaining life of chamber filter plate, by result export to
Real-time visual module and warning module.
Healthy early warning module, including healthy threshold value setting interface and emergency alarm bell.Healthy threshold value can be set as needed in user,
When the remaining life exported from intelligent analysis module to healthy early warning module is lower than healthy threshold value, emergency alarm bell is sounded an alarm.
Real-time visual module, including 3-D geometric model load, data load and coupling three submodules of display.Pass through
3-D geometric model loads submodule and reads the threedimensional models formatted files such as igs, dwg, extracts the finite element model of chamber filter plate,
Basic operations can be rotated, be scaled, being moved etc. simultaneously, to model so as to from multiple directions.Data load submodule connects
Receive the real-time field distribution data and remaining life data of intelligent analysis module output.Coupling display sub-module is closed according to space geometry
System shows unit in chamber filter plate finite element model over the display with the mapping of corresponding data cell.
Fig. 4 show the application method for being affixed on the fiber-optic grating sensor application system of chamber filter plate outside, using above-mentioned biography
Sensor and application system, specifically includes the following steps:
(1) it determines the monitoring position of chamber filter plate, lays sensor.
The finite element model for establishing pressure filter van-type filter pad analyzes compartment using Finite Element Simulation Softwares such as Abaqus, Ansys
The stress of formula filter plate in the operating condition, and analysis of fatigue is carried out using analysiss of fatigue softwares such as FE-SAFE, analysis is located at
Change of stress field sensitive spot on the outside of filter plate determines installation position and the direction of fiber-optic grating sensor.Further combined with experiment
The damage fingerprint library of the model chamber filter plate is set up in the simulation that data carry out various degree of impairment.
(2) fiber-optic grating sensor is pressed to the position determined in (1) using thermosetting resins such as epoxy resin, unsaturated polyester (UP)s
It sets and direction is pasted on chamber filter plate frame, select suitable optical fiber connection fiber-optic grating sensor and light source, fiber grating solution
Adjust instrument, fiber coupler.
(3) filter plate breakdown diagnosis software, filter plate damage data library are installed in monitoring server computer.Debug breakdown diagnosis
Each arithmetic unit is exchanged with the communications and data between database in software, with data line connection server computer and fiber grating solution
Instrument is adjusted, realizes efficient communication.
(4) real-time visual module is installed.Its threedimensional model is loaded according to practical chamber filter plate model, extracts finite element mould
Type, and complete the mapping relations of finite element model unit and data cell.
(5) warning module is installed, user sets filter plate remaining life threshold value, installation connection alarm according to required Health Category
Bell.
Using the above-mentioned outer fiber-optic grating sensor for being affixed on chamber filter plate, the raster center wave of chamber filter plate is obtained
Length-pressure loading testing result, as shown in Figure 5, it is seen then that the registration of 5 loading-unloading cyclic curves of actual measurement is very high, shows
Good detection stability and reliability are shown.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (8)
1. a kind of external labeling type fiber-optic grating sensor applied to chamber filter plate, it is characterized in that: including being pasted on chamber filter plate
In several optical fiber Bragg grating encapsulation patches that matrix form is arranged, the fiber-optic grating sensor is paved in the outer of chamber filter plate frame
Side obtains the strain temperature field of chamber filter plate entirety by the strain and temperature conditions operation that monitor chamber filter plate frame；
The optical fiber Bragg grating encapsulation patch arranges optical fiber using glass fiber reinforced epoxy resin composite material as substrate on substrate
Grating and conduction optical fiber, fiber grating are packaged together with substrate by vacuum auxiliary pouring liquid resin process；
One layer obtained by vacuum auxiliary pouring technique is equipped in the top of conduction optical fiber and galss fiber reinforced resin substrate
Galss fiber reinforced resin film, the liquid resin infusion glass fabric being poured, passes through co-curing behavior and glass fibre
Reinforced resin molding substrate is an entirety, and the optical fiber Bragg grating encapsulation patch bottom surface of preparation is smooth and upper surface is arranged with fiber grating
Cloth forms naturally, preferably protects fiber grating and accurately transmitting strain convenient for glass fabric；
The optical fiber Bragg grating encapsulation patch is pasted with thermosetting resin and chamber filter plate, and one layer of thermosetting property is coated with after stickup
Resin, the thermosetting resin are epoxy resin or unsaturated polyester (UP).
2. a kind of external labeling type fiber-optic grating sensor applied to chamber filter plate as described in claim 1, it is characterized in that: described
The fiber grating of encapsulation is single strain monitoring grating.
3. a kind of external labeling type fiber-optic grating sensor applied to chamber filter plate as claimed in claim 2, it is characterized in that: described
The fiber grating of encapsulation further includes temperature monitoring grating, temperature-compensating when for temperature monitoring or strain monitoring.
4. a kind of chamber filter plate intelligent health prison with the described in any item external labeling type fiber-optic grating sensors of claim 1-3
Examining system, it is characterized in that: including the external labeling type fiber bragg grating sensing device for being applied to chamber filter plate, intelligent analysis module, early warning
Module, display module and chamber filter plate damage data library, wherein the fiber-optic grating sensor of external labeling type fiber bragg grating sensing device
It is paved in the outside of chamber filter plate frame, the external labeling type fiber bragg grating sensing device applied to chamber filter plate, including light source,
External labeling type fiber-optic grating sensor, fiber coupler and fiber Bragg grating (FBG) demodulator, the light source generate continuous frequency modulation laser, laser
Signal enters the fiber grating of external labeling type fiber-optic grating sensor by lead, forms stable reflection signal, external labeling type optical fiber
Grating sensor is sequentially connected fiber coupler and fiber Bragg grating (FBG) demodulator by optical fiber, the strain and/or temperature to chamber filter plate
Degree carries out real-time monitoring and signal demodulation；
The history number in parameter information and chamber filter plate damage data library that the intelligent analysis module is acquired according to sensing device
According to analyzing the degree of injury of chamber filter plate, warning module reads the degree of injury of chamber filter plate, is reported when more than alarm threshold
Alert, display module carries out Real time dynamic display to the degree of impairment of chamber filter plate；
The intelligent analysis module, including strain field and temperature field analysis device, fatigue accumulation arithmetic unit, filter plate non-destructive tests operation
Device and residual intensity arithmetic unit, in which:
The strain field and temperature field analysis device are configured as the real time temperature and/or strain data inputted according to sensing device
Real-time temperature field and/or strain field that operation obtains chamber filter plate are carried out, result is exported to display module, and is saved to van-type
Filter plate damage data library forms chamber filter plate history floor data；
The fatigue accumulation arithmetic unit is configured as creep and relaxation attribute in conjunction with chamber filter plate material, is based on rain-flow counting
Method carries out fatigue mechanisms, reads the history floor data of chamber filter plate in chamber filter plate damage data library, calculates the tired of filter plate
Strain wound；
The filter plate non-destructive tests arithmetic unit, is configured as the monitoring data according to chamber filter plate, by artificial neural network
Pattern recognition function matches the stress-strain state of filter plate, realizes non-destructive tests；
The residual intensity arithmetic unit is configured as carrying out residual intensity calculating according to chamber filter plate degree of injury and predicts van-type
The remaining life of filter plate exports result to display module and warning module.
5. a kind of chamber filter plate intelligent health monitoring system as claimed in claim 4, it is characterized in that: optical fiber Bragg grating encapsulation patch
It is pasted using thermosetting resin and chamber filter plate, one layer of thermosetting resin is coated with after stickup to ensure optical fiber Bragg grating encapsulation
Survival rate of the patch under bad working environments simultaneously guarantees the accuracy of itself and filter plate strain transmitting and the consistency of temperature.
6. a kind of chamber filter plate intelligent health monitoring system as claimed in claim 4, it is characterized in that: the chamber filter plate damages
Database is configured as Binding experiment data, using finite element software simulation when the damage of different type, different parts occurs
Filter plate strain everywhere and the damage fingerprint library established, and materialogy data and history floor data comprising chamber filter plate.
7. a kind of chamber filter plate intelligent health monitoring system as claimed in claim 4, it is characterized in that: the display module, packet
It includes:
Model loading module is configured as reading threedimensional model formatted file, extracts the finite element model of chamber filter plate, while can
Model is rotated, scaled or is moved, from multiple directions observing and nursing；
Data loading module is configured as communicating with intelligent analysis module, reads the real-time field distribution of intelligent analysis module output
Data and remaining life data；
Display module is coupled, is configured as real-time field distribution data, remaining life data on the threedimensional model of chamber filter plate
Corresponding display.
8. a kind of chamber filter plate analysis and early warning method using the described in any item intelligent health monitoring systems of claim 4-7,
It is characterized in that: the following steps are included:
(1) finite element model of pressure filter van-type filter pad is established, the stress of analysis chamber filter plate in the operating condition is found out
Strain field on the outside of chamber filter plate changes sensitive spot, so that it is determined that the installation position of fiber-optic grating sensor and direction；
(2) monitoring system is connected, the temperature and/or strain parameter of chamber filter plate are acquired；
(3) real-time temperature field and strain field for determining chamber filter plate according to the collected data, calculated in conjunction with its history floor data,
Judge its degree of injury and residual intensity, predicts the remaining life of chamber filter plate；
(4) it when remaining life is lower than healthy threshold value, alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884910.XA CN106248150B (en) | 2016-10-10 | 2016-10-10 | External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610884910.XA CN106248150B (en) | 2016-10-10 | 2016-10-10 | External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106248150A CN106248150A (en) | 2016-12-21 |
| CN106248150B true CN106248150B (en) | 2019-09-17 |
Family
ID=57612264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610884910.XA Active CN106248150B (en) | 2016-10-10 | 2016-10-10 | External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106248150B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234831A (en) * | 2021-12-13 | 2022-03-25 | 中铁建工集团有限公司 | Strain monitoring method and system for curved surface steel casting and readable storage medium |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643136A (en) * | 2017-09-01 | 2018-01-30 | 北京化工大学 | A kind of monitoring method using Fibre Optical Sensor to extra large pipe safe condition |
| CN108917803A (en) * | 2018-08-08 | 2018-11-30 | 西安交通大学 | A kind of preparation method of the distributed high-temperature resistant optical fiber grating sensor based on metal coated fiber |
| CN109631790B (en) * | 2019-01-09 | 2020-11-13 | 中国科学院新疆天文台 | Antenna subreflector supporting leg deformation online measuring device and measuring method |
| CN110595756B (en) * | 2019-10-12 | 2021-05-14 | 邵芮 | Practical condition detection device for filter plate of filter press |
| CN111024821A (en) * | 2019-12-30 | 2020-04-17 | 大连理工大学 | Composite material storage box health monitoring system and method |
| CN111750793B (en) * | 2020-06-09 | 2021-06-15 | 上海交通大学 | Intensity demodulation strain sensing method based on neural network |
| CN115219060A (en) * | 2022-03-24 | 2022-10-21 | 燕山大学 | Intelligent optical fiber buoyancy material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN105387890A (en) * | 2015-12-21 | 2016-03-09 | 山东大学 | On-line state monitoring system and method for diaphragm of diaphragm filter board |
| CN105571620A (en) * | 2015-12-21 | 2016-05-11 | 山东大学 | on-line damage detection device for filter board of filter press and enforcement method |
| CN105606275A (en) * | 2015-12-21 | 2016-05-25 | 山东大学 | Online monitoring system and method for core plate of membrane filter board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004361281A (en) * | 2003-06-05 | 2004-12-24 | Sumitomo Electric Ind Ltd | Optical fiber sensor |
| JP4214483B2 (en) * | 2004-09-15 | 2009-01-28 | 独立行政法人産業技術総合研究所 | Attachment structure and attachment method of FBG ultrasonic sensor to subject |
-
2016
- 2016-10-10 CN CN201610884910.XA patent/CN106248150B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235613A (en) * | 2013-04-03 | 2013-08-07 | 天津大学 | System and method for actively controlling precision machine tool temperature fields |
| CN105387890A (en) * | 2015-12-21 | 2016-03-09 | 山东大学 | On-line state monitoring system and method for diaphragm of diaphragm filter board |
| CN105571620A (en) * | 2015-12-21 | 2016-05-11 | 山东大学 | on-line damage detection device for filter board of filter press and enforcement method |
| CN105606275A (en) * | 2015-12-21 | 2016-05-25 | 山东大学 | Online monitoring system and method for core plate of membrane filter board |
Non-Patent Citations (2)
| Title |
|---|
| 基于光纤光栅传感器的油船结构状态监测研究;赵彦文;《中国优秀硕士学位论文全文数据库 工程科技II辑》;20131215(第S2期);摘要、第37页第1段-第59页倒数第1段 |
| 碳纤维复合材料封装FBG传感器研究;刘德力;《中国优秀硕士学位论文全文数据库 信息科技辑》;20071115(第5期);摘要、第20页第2段-第21页第3段，第29页第1段-第 41页第1段，图3-2，图4-1、4-2、4-3、4-9 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234831A (en) * | 2021-12-13 | 2022-03-25 | 中铁建工集团有限公司 | Strain monitoring method and system for curved surface steel casting and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106248150A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106248150B (en) | External labeling type fiber-optic grating sensor, detection system and method applied to chamber filter plate | |
| CN106404066B (en) | External labeling type fiber-optic grating sensor, detection system and method applied to membrane filter plate | |
| CN105387890B (en) | A kind of barrier film on-line condition monitoring system and method for membrane filter plate | |
| KR101286252B1 (en) | A structural health monitoring arrangement | |
| US5210499A (en) | In-situ sensor method and device | |
| CN107941283B (en) | Multi-parameter on-line monitoring system and method for hot-press curing process of composite material | |
| CN205940820U (en) | Pantograph receives stream mode bow net contact force detection device and measures car | |
| CN111024821A (en) | Composite material storage box health monitoring system and method | |
| CN109186895A (en) | Distributed passive gas transmission line leakage multi-parameter fusion early warning detection device and method | |
| CN107525849A (en) | A kind of single-input single-output test modal analysis system and method based on fiber grating | |
| CN106441383B (en) | A kind of Active spurring formula filter press filter board health detecting system based on optical fiber grating sensing | |
| CN108871638B (en) | Optical fiber measuring device and monitoring method for residual stress of material | |
| CN110181888B (en) | Intelligent honeycomb composite material based on ultra-low reflectivity FBG array sensor | |
| CN108195943B (en) | Optical fiber acoustic emission system for monitoring explosive damage and destruction process and monitoring method thereof | |
| CN105571620A (en) | on-line damage detection device for filter board of filter press and enforcement method | |
| CN105606275B (en) | The core plate on-line monitoring system and method for a kind of membrane filter plate | |
| US11639037B2 (en) | Production method for a fiber composite component | |
| CN116248176B (en) | Optical fiber state monitoring and early warning method, system, equipment and medium | |
| CN210690242U (en) | System for meticulous test of rock core strain, resistivity under loading state | |
| CN112798143A (en) | Molding frame state monitoring method based on integrated optical fiber sensor | |
| CN113405590A (en) | Device, system and method for testing states of key components of railway vehicle | |
| CN202524430U (en) | Hoisting machinery health monitoring system based on field bus sensing technology | |
| Ficzere et al. | Validation of numerically simulated rapid-prototype model by photoelastic coating | |
| CN208125189U (en) | A kind of monitoring system of tailings dam | |
| CN111383784B (en) | Error correction monitoring method and device for intelligent pressure vessel measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wan Guoshun Inventor after: Wang Qinglin Inventor after: Jia Yuxi Inventor after: Zhang Mengjie Inventor after: Dong Qi Inventor after: Zhang Dawei Inventor after: Jiang Mingshun Inventor after: Sui Qingmei Inventor after: Wang Haiqing Inventor after: Gao Linlin Inventor before: Jia Yuxi Inventor before: Wang Qinglin Inventor before: Wan Guoshun Inventor before: Zhang Mengjie Inventor before: Dong Qi Inventor before: Zhang Dawei Inventor before: Jiang Mingshun Inventor before: Sui Qingmei Inventor before: Wang Haiqing Inventor before: Gao Linlin |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |