CN104838255A - Measuring a fibre direction of a carbon fibre material and producing an object in a carbon-fibre composite construction - Google Patents
Measuring a fibre direction of a carbon fibre material and producing an object in a carbon-fibre composite construction Download PDFInfo
- Publication number
- CN104838255A CN104838255A CN201380059527.5A CN201380059527A CN104838255A CN 104838255 A CN104838255 A CN 104838255A CN 201380059527 A CN201380059527 A CN 201380059527A CN 104838255 A CN104838255 A CN 104838255A
- Authority
- CN
- China
- Prior art keywords
- equipment
- machine direction
- light
- check
- carbon fiber
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/382—Automated fiber placement [AFP]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8472—Investigation of composite materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
Abstract
According to the invention, the fibre direction of a carbon-fibre material of an object which is to be tested is detected using the polarisation direction of light reflected by the object which is to be tested. If unpolarised light, for example, is incident on carbon-fibre, the light reflected by the fibres is polarised in the fibre direction.
Description
Technical field
The present invention relates to a kind of machine direction for measuring carbon fibre material, such as quality check and/or continue process and for the scheme of carbon fiber composite structure mode manufacturing object.
Background technology
In the light structures in modern times, use carbon fiber to improve the intensity of so-called carbon fibre composite more and more.Especially in the component of the security-critical be made up of this compound substance, such as aircraft manufacturing, automobile making etc., the direction of correct position and correct trend, i.e. carbon fiber for the component made physical strength and loadly can have decisive meaning.Each point or all relevant point of workpiece need the angle that the precision measure fiber orientation determined or carbon fiber are positioned at.Usually, manufacture multilayer carbon fibre fabric time successively superposed on one another ground layering and respectively with special plastics soak and harden.Each in this layer must evaluate in fiber orientation.Because carbon fiber layer is opaque for visible ray, so be necessary for the inspection that each layer performs machine direction individually respectively after applying this layer.
Machine direction is measured in a different manner up to now or is controlled, namely a) manufacturer is passed through visually, b) by being applied by manufacturer to mark, by means of camera arrangement certification mark and by corresponding software continuation process camera picture, and c) by utilizing camera arrangement record carbon fiber, the pixel resolution of this camera arrangement certainly must be high to making each carbon fiber differentiate in the mode of drawing, thus can determine the direction of carbon fiber in each position of image by means of special software from view data.
Therefore solution a) and b) require the cooperation of manufacturer, and can reappear very poor due to known role of subjective intentions and be subject to error effect.In addition, this solution is consuming time and then is expensive.Full automatic inspection is infeasible.Solution c) need the pixel resolution of the camera applied relatively high.Except the higher cost with high-resolution camera, form more view data when high pixel quantity, this view data causes higher image transmitting speed and the higher arithmetic capability of image evaluation when frame rate is identical.Higher message transmission rate and high arithmetic capability cause again higher cost.Just in time consider on the contrary, this represents: limit inspection speed when cost consumption is determined.In other words: for the specific face checking carbon fiber composite component, the cost allowed determines inspection speed finally.Another shortcoming is the following fact: from view data, must calculate machine direction by software.Therefore, the reliability of result and precision depend on software quality significantly.Especially, in the fabric soaked with plastics, compared with so-called with unsoaked " weaving " fabric, the identification of machine direction is significantly also more coarse and so unreliable.
Therefore, it is desirable that for measuring the scheme of the machine direction of carbon fibre material or for the scheme of carbon fiber composite structure mode manufacturing object, it overcomes above-mentioned shortcoming or realizes the manufacture that cost is suitable for more when quality goods precision is identical.
Summary of the invention
Therefore, the object of the invention is to: with the characteristic improved realize the machine direction for measuring carbon fibre material scheme and for the manufacture of the object of carbon fiber composite structure mode.
Therefore, object of the present invention is realized by the content of appended independent claims.
The present invention utilizes following knowledge: it is possible that the machine direction of the carbon fibre material of the object that will check identifies according to the polarised direction of the light by the object reflection that will check.If such as unpolarized light appears on carbon fiber, the light so reflected by fiber polarizes in machine direction.The wavelength of light is such as arranged in 400 to 1000 nanometer range.
It is possible that measure the machine direction of carbon fibre material, such as carbon fibre fabric or carbon fibre composite by means of the polarization of light in the mode of drawing.Therefore, according to an embodiment, the camera of polarization sensitive is used as polarization sensor, the object that this camera record will check, so that the detection obtaining the position resolution of polarised direction, and then the scanning of the position resolution of acquisition polarised direction.Advantageously, this is not needed: the resolution of the camera of polarization sensitive is enough to differentiate fiber in an optical manner.In other words, the position resolution of the camera of polarization sensitive in the lens plane of camera lens lower than necessary, to differentiate the structure of the fiber of the surface of carbon fibre material, i.e. pixel repetition interval in the lens plane of camera lens can be greater than such as fiber radius.
Accompanying drawing explanation
Favourable embodiment is the content of dependent claims.Below with reference to the accompanying drawings preferred embodiment of the present invention is elaborated, wherein
Fig. 1 illustrates the schematic block diagram of the equipment of the machine direction of the carbon fibre material for measuring the object that will check according to the first embodiment of the present invention,
Fig. 2 illustrates the schematic diagram of the camera of the polarization sensitive worked as polarity sensor according to embodiment, and
Fig. 3 illustrate according to embodiment for the block diagram of the system of carbon fiber composite structure mode manufacturing object.
Embodiment
Fig. 1 illustrates the schematic block diagram of the equipment of the machine direction of the carbon fibre material for measuring the object that will check according to the first embodiment of the present invention.Carbon fibre material can be such as carbon fibre fabric, as provided by cross spider in FIG.Certainly, it also can be carbon fibre composite.In FIG, the object 10 that will check be made up of carbon fibre material is such as the layer or lamination that are made up of carbon fibre fabric, this carbon fibre fabric such as arranges for being applied to one or more other carbon fiber layer after the measurement, jointly to obtain carbon fiber composite.To this it is equally important that understand the machine direction of carbon fibre material.But also can need machine direction for other reason.Example illustrates the foreground picture in the front 14 of object 10 and its carbon fibre material that will check with the enlarging section 12 of dotted line in FIG.Wherein, by one-tenth fabric 18 braided with one another for fibrous bundle 16.Alternatively, object can be-tool is with or without the stacking of the above-mentioned carbon fiber layer of plastic substrate, being the stacking of above-mentioned carbon fiber layer that is that harden or still unhardened plastic substrate or rather, is namely the intermediate product or product that are made up of carbon fibre composite.
The equipment of the machine direction of the carbon fibre material 18 for measuring the object 10 that will check in Fig. 1 illustrates with 20 usually, and comprises light source 22, polarization sensor 24 and optional computing machine 26 and optional monitor 28.Light source 22 is designed for the object 1 illuminating and will check.Polarization sensor 24 is designed for the polarised direction detecting the light reflected by the object 10 that will check, the i.e. polarised direction of especially following light, illuminated the object and then reflection in polarization sensor 24 that will check by light source 22 by this light, wherein polarised direction provides the machine direction of object 10 on the front 14 that it is illuminated.
Therefore, under the state formed, light source 22 is oriented, the object 10 it being illuminated will check.The light 30 launched by light source 22 is such as not polarized.It is such as Halogen lamp LED, incandescent lamp, LED or like this.Also can illuminate multiple lamps of identical or different type from the different direction of object 10 simultaneously, or by means of other equipment such as mirror, light transmitting fiber or realization like this from the illumination of multiple directions, namely light source can have multiple lamp and/or additional light directing arrangement, such as mirror etc., to realize illuminating object 10 from different directions, and so that realize thus being scanned by polarization sensor 24 or towards its throwing light on more completely of surface 14, namely avoid obmubing.The spectrum of light 30, such as its mean wavelength are such as arranged in 400 to 1000nm scope.Especially, light source 22 can be broadband or the light source of arrowband.Also it is possible that application monochromatic source 22.Preferably, the half band-width of the spectrum of light source 22 is arranged in the scope being less than or equal to 100nm.
Once light 30 is mapped on the object 10 that will check, the suitable characteristic of carbon fibre material 18 just can be perceived energetically, whereby the effect light be mapped on it being played to polarization of the latter.Especially, light 30 polarizes along polarised direction after the carbon fibre material of the object 10 that will check reflects at it, and this polarised direction stretches along machine direction at surface 14 place be illuminated.Show the object 10 from the direction of polarization sensor 24 surface 14 a part vertical view amplification part 12 in, this exemplarily illustrates for two of the object that will check different position A and B.A place, position reflection and the light 32 be mapped on the sensor 24 of polarization has polarised direction 34
a, this polarised direction is parallel to the machine direction 36 of fibrous bundle 16
a, this fibrous bundle is transverse to position A.At B place, position, machine direction 36
band then be parallel to this polarised direction 34 stretched in addition
bstretch upwards the opposing party, namely perpendicular to direction 36
aor 34
a, because position B is exemplarily positioned at other fibrous bundle 16 place.
Polarization sensor 24 can only in the mode of point via the machine direction of the measuring polarization direction fibrous material 10 of the light 32 reflected at this some place, or the camera of line sensor or face sensor or polarization sensitive.When first time proposes, if desired, such as executor or robot (not shown) are used for scanning machine direction in the mode of position resolution, so that the point laterally moved or change by being scanned by polarity sensor 24 or position, by the light of polarization sensor 24 detection of reflected from this point or position, and then obtain the measurement of corresponding machine direction at different position A and B place.
Shown in Fig. 2, polarization sensor 24 can be the camera of polarization sensitive.According to this embodiment, the camera 24 of polarization sensitive comprises pel array 38 and camera lens 40 projects on pel array 38 for the object 10 that will check.As overlooking shown in Figure 42 of the amplification to pel array 38 at Fig. 2, the pixel 44 of pel array 38 such as can be organized into super-pixel 46, thus make each super-pixel 46 have the pixel 44 of pel array 38, this pixel is responsive for different polarised directions, i.e. at least one first pixel of the first polarised direction and the second pixel of second polarised direction different from it.Fig. 2 exemplarily illustrates: each super-pixel 46 such as has four pixels 44, and this pixel is responsive for polarised direction, this polarised direction each other with 45° angle degree poor be spaced from each other.The pixel with the varying number of different polarization sensitive degree is feasible certainly equally, equally as the distribution of the non-equidistance of the polarised direction of this pixel.It is to be noted, unessential: as shown in Figure 2, pixel whether regularly in rows and columns, with the layout of other rule or arrange brokenly, and whether the layout of the pixel within super-pixel 46 is identical, or the layout of the pixel for different polarised direction sensitivities within super-pixel 46 changes via pel array 38.Equally also it is possible that super-pixel 46 is arranged brokenly on the direction of row and column, but its in addition also can rule or arrange brokenly.
Scanning that is that the scanning undertaken by polarization sensor 24 is not limited to point-like or planar, as describe before.Also can consider line by line or scan on the front 14 be illuminated one-dimensionally the machine direction of the carbon fibre material of object 10 that will check.Also can relative motion between application 10 and polarization sensor 24 at this, to realize on the whole scanning machine direction two-dimensionally.
Polarization sensor 24 can also have filtering system, so that the light of the wavelength from the light 32 of reflection in the light of filtering specific wavelength, the scope such as mentioned in advance between 400 to 1000nm.Pel array 38 such as can have the array be made up of light activated region, has again the array be made up of filter construction via this array, makes each light activated region obtain pixel together with filter construction.The filter construction being connected to each light activated region upstream can be such as cell structure.Especially, it is possible that filter construction has the structural detail of following size, this size is arranged in sub-wavelength coverage, is namely less than the wavelength of light 30.Filter construction can have the characteristic of photonic crystal.Light activated region and filter construction can be jointly in the chips integrated.Light activated region such as can be passed through photodiode array, ccd array or cmos pixel array and be formed.This polarization sensor such as describes in DE 102008014334.
Polarization sensor 24 also can be made up of the CCD of commercialization or cmos image sensor, i.e. polarize insensitive sensor, i.e. single-sensor, line sensor or imageing sensor and equipment, the i.e. polarisation filter for the polarised direction continuing or hierarchically rotate light 32 be arranged between sensor and object 10, and the break-through polarised direction of this polarisation filter changes in time.Polarisation filter for equipment or the tool vicissitudinous break-through polarised direction of rotating the polarised direction of light can realize: in turn, namely the time records multiple image continuously, and image is settled accounts each other by rights, to obtain the polarisation angles of the local at any position on surface 14 in like fashion.
Like that as illustrated in fig. 1, equipment 20 can have computing machine 26 and display device 28 alternatively.Computing machine 26 such as can arrange for converting suitable grade point, i.e. every one or more pixel value of super-pixel to when the design proposal of polarization sensor 24 as face sensor, in addition, this grade point is the tolerance of polarisation angles of local of reflected light 32 in the position be associated with super-pixel on surface 14 or the tolerance of the machine direction in this position.So, the scanning of the position resolution of machine direction can be shown on the display device in the mode of color-code.Computing machine 26 or the program run wherein can also drive the aforementioned executor 48 that alternatively exist of control for producing relative motion between object 10 and polarization sensor 24.
Computing machine 26 especially also can act as control device, this control device determines the moulding of the machine direction of object 10 about object 10 or the orientation of shape from the machine direction via polarization sensor 24 mensuration of the carbon fibre material of object 10 and the positional information about object 10, and drives the executor of control keeping object with depending on this orientation.In other words, control device can depend on and controls for keeping and change object the executor of position about object 10 relative to the positional information of the position of polarization sensor 24 and the machine direction of object, to control the control device be used for this object and the superposition of another object, to such an extent as under state superposed on one another, machine direction has predetermined orientation relative to another object, and/or depends on and determine the orientation of machine direction relative to the moulding of object 10 about object 10 relative to the positional information of the position of polarization sensor 24 and the machine direction of object.Superposed on one another can carry out for, side 14 is reclined object under state superposed on one another, or rather, such as make machine direction relative to another object corresponding towards side feature preferred orientations, relative to carbon fiber direction, there is predetermined direction relations such as equally, be such as transverse to this place and stretch.Certainly, above mentioned executor also can be following executor, and object is remained on when detecting polarised direction and then detection fibers direction the position limited by positional information by this executor.Below, in the scope of manufacturing system, example is described to this.
Fig. 3 illustrate according to embodiment for the block diagram of the system of carbon fiber composite structure mode manufacturing object 50.Usual with the 52 systems application represented or comprise the equipment 20 of Fig. 1 and executor or robot 54.Equipment 20 is consistent with the measurement of the machine direction of carbon fiber layer 56 as described.Robot 54 is designed at this, and carbon fiber layer 56 is superposed on one another according to the measurement undertaken by equipment 20 when correcting its carbon fiber direction to each other, to obtain object 50 in like fashion.Such as, can be provided with control device, this control device drives man-controlled mobile robot 54, and the carbon fiber direction that assessment is determined via the polarised direction of light of reflection.
Control device 58 such as drives control executor or robot 50, makes equipment 20 can determine the machine direction of carbon fiber layer 56, namely illuminates object 10 and be in polarization sensor 24 view finder.When detecting polarised direction, this understanding object is relative to the position of polarization sensor with when detecting polarised direction, control device 58 obtains about the cognition of machine direction relative to the shape of object 10 or the orientation of moulding subsequently, and such as can drive man-controlled mobile robot 54, make current carbon fiber layer 56 to be placed on other carbon fiber layer 60 superposed on one another, to such an extent as to the machine direction of the current carbon fiber layer 56 that will settle and the machine direction of the current carbon fiber layer exposed have predetermined angle, this angle such as causes the especially stable shape of object 50.What object 50 such as provided in figure 3 is the hull of ship like that or is a part for aircraft body or a part for motor vehicle.
In figure 3 with dotted line box 60 mark and if desired the same device 60 controlled by control device 58 can be set to this, be carbon fiber layer be equipped with plastics, carbon fiber layer is embedded in plastics, so-called matrix after plastic hardening.Can carry out before correspondingly settling corresponding layer individually for carbon fiber layer is equipped with plastics, individually respectively after the corresponding carbon fiber layer of arrangement or for multiple carbon fiber layer jointly in one step its superposed on one another settle after carry out.
In the above-described embodiments, advantageously directly obtain about the information of machine direction, and do not rely on pattern identification or like this.Measured polarised direction directly obtains the machine direction of the corresponding position at the object that will check, and measures therefore, it is possible to fast and reliably perform, and does not especially postpone manufacture in the context of fig. 3.
Therefore, in other words, above-described embodiment based on: carbon fiber has following characteristic, the usual unpolarized light that part reflection is incident, and it is polarizing to be parallel to fiber longitudinal direction at this.The characteristic of polarization performance uses, in the above-described embodiments to determine machine direction.To this, the measurement of the plotting mode of application polarization.By means of the equipment of measurement being suitable for this plotting mode, in polarised direction, analyze the light reflected by carbon fiber, such as carbon fibre fabric.So this result directly shows the direction of the carbon fiber of corresponding position.This equipment can be suitable for the mode determination and analysis polarized light two-dimensionally of drawing, and as with reference to described by figure 2, Fig. 2 illustrates camera or " the polarization camera " of polarization sensitive.Therefore, according to an embodiment, the object that will check be made up of carbon fiber is by suitable light illuminating, and wherein, polarization camera is directed on object.The polarised direction that each position of object is measured by camera of the light of reflection directly gives the direction of the carbon fiber in this position.The wavelength of light such as can be arranged in 400 to 1000nm scope.The direction of fiber as emphasized, advantageously do not need the resolution height of camera to making to identify fiber in detail above, can be calculated by software.On the contrary, light polarizes and camera must only can spatially-resolved analysis polarization by fiber itself in machine direction.This represents, in the case of figure 2, the pixel resolution of camera can significantly lower than the situation according to the method proposed in the instructions Introductory part of the application c).Lower system cost is caused because lower data rate and less calculating expend.Or different angles, when cost is identical, in the case of the above embodiments, can check more large-area carbon fiber in the identical time, and this causes the higher number of parts when part checks and then causes lower cost of parts.Other viewpoint is, the identification physically based deformation law of machine direction carries out, and is not undertaken by the calculating by means of software, and the identification of machine direction is significantly more reliable thus.This is especially applicable when soaking fabric with plastics, the wherein method c come from instructions Introductory part up to now) be relatively poor and run out of true.
Usually, above-described embodiment can be used in least identical technical field.Such as can it is considered that, use in light structures, there carbon fiber be processed into so-called CFK (carbon fiber-reinforced plastics) and the quality of product must be guaranteed.As aerospace, vehicle structure, wind energy plant etc.
Although bonding apparatus describes some viewpoints, it being understood that these viewpoints also describe the description of corresponding method, make the block of equipment or component also can be interpreted as corresponding method step or be interpreted as the feature of method step.Be similar to this and propose following aspect, associated methods step or also describe the corresponding block of corresponding equipment or feature or details as the viewpoint that method step describes.Some or all method steps can pass through hardware device (or utilizing hardware device), such as microprocessor, programmable computing machine or electronic circuit and form.In certain embodiments, some or multiple most important method step can be consisted of this equipment.
When not with reference to above-mentioned, the computing machine 26 of such as Fig. 1 or other treating apparatus such as can be determined in the face parametrization on the surface 14 of object 10, determine three-dimensional machine direction or machine direction from obtained polarised direction in the plane of the plane of delineation being parallel to camera, wherein, detected polarised direction is associated with position and determines machine direction by computing machine or treating apparatus in the parametrization on the surface 14 of object 10, make the plane that this machine direction is launched with the polarised direction determined with the tangent and direction being arranged in the light by reflect, surface 14 in this point, wherein the polarised direction of this acquisition illustrates along following direction two-dimensionally in projection, namely the direction reflected is mapped on polarization sensor 24 along this direction.Certainly, also can just ensure this: surperficial 14-such as at least in the position of Current Scan-ground, direction that is substantially perpendicular to the light of reflection is directed.
In the measurement that above-described embodiment concentrates on machine direction up to now and thus to operate this object relative in the utilization being orientated the cognition of object of other objects.Certainly, additionally or alternatively such as, it is possible that apply the cognition about other objects, for the purpose of quality control.Carbon fiber for the polarization of light of reflection can be used in checking during manufacturing carbon fiber-reinforced component device carbon fiber direction and with predetermined numeric ratio comparatively.Not only at the intermediate product place of such as each carbon fiber layer, also this inspection can be performed at the component place of making.Especially can check, whether the angle of the carbon fiber in component or object has the numerical value of regulation in any position of component, or the mutual of fiber in fabric is oriented in the angle value whether any position has regulation.
Therefore, such as computing machine 26 also can be used as analytical equipment in FIG, such as, software by running thereon accordingly, and equipment 20 can be expressed as quality measurement apparatus.Analytical equipment can detect determined machine direction and whether meet predetermined condition, and when meeting with box lunch, object 10 is classified as the enough objects of quality, and object 10 is classified as the enough objects of mass deficiency when not meeting.According to this, analytical equipment can impel the position A that object 10 is transported to waste product object by executor or the position B be transported to as installation site.
Such as propose the machine direction of the position on the surface 14 of object and adjacent location comparison to the inspection whether meeting predetermined condition, such as, check whether the angle between this both direction is arranged in predetermined angular range.Assessment also can be carried out statically: set up the histogram of machine direction in the position of the scanning on the surface of object and check statically.Such as determine and check two patterns, whether the angular separation between these two patterns is arranged in predetermined scope.
But, also additionally or alternatively jointly can comprise the distinctive surface direction of object 10 to the inspection whether meeting predetermined condition, such as the girth on seamed edge, principal curvature or surface 14.So can check whether machine direction is arranged in default angular range relative to distinctive surface direction.Distinctive surface direction automatically can be identified by the every pattern identification of analytical equipment.Automatic identification especially can independently be recorded object 10 according to polarization and be implemented.When using camera application, as when the part of polarization sensor 24, this is easily feasible.
Finally, also above-described embodiment is pointed out: light source can not be a part for equipment or system equally, but be a part for environment in the conceived case.In other words, can environment for use trimmed book body.As described above, can therefore the assessment of polarization can be limited in such as above-mentioned preferred wavelength coverage, wherein, not only be decomposed in its polarization in polarization sensor by the light of object reflection, and spectrally carrying out filtering.Therefore, the passband of spectral filter especially can be arranged in 400 and 1000nm scope and have the half band-width being less than or equal to 100nm.
According to specific execution requirements, embodiments of the invention can perform with hardware or software.First this be applicable to above-mentioned treatment facility, control device, analytical equipment etc.This executive mode can perform when utilizing the storage medium of numeral, such as floppy disk, DVD, Blu-ray disc, CD, ROM, PROM, EPROM, EEPROM or flash memories, hard disk or other magnetic or optical memory, on digital storage media store can electricity read control signal, this control signal and programmable computer system can acting in conjunction or actings in conjunction, to perform corresponding method.Therefore digital storage media can read by computing machine.
Therefore, comprise data carrier according to some embodiments of the present invention, this data carrier have can electronics read control signal, this control signal can with programmable computer system acting in conjunction, make to perform in method described here.
Usually, embodiments of the invention can be implemented as the computer program with program code, and wherein program code is effective in the case where there, namely performs the method when calculating program product and running on computers.
Program code such as also can be stored on machine-readable carrier.
Other embodiment comprises the computer program for performing method described here, and wherein computer program is stored on machine-readable carrier.
In other words, be therefore computer program according to the embodiment of method of the present invention, this computer program is when running on computers, and this computer program has the program code for performing method described here.
Therefore, be data carrier (or the storage medium of numeral or computer-readable medium) according to a further embodiment of the method according to the invention, on the data carrier under record for performing the program code of method described here.
Therefore, be data stream or burst according to a further embodiment of the method according to the invention, this data stream or burst are the computer program for performing method described here.Data stream or burst such as can configure as follows, connect via data communication, such as transmit via the Internet.
Another embodiment comprises treating apparatus, such as computing machine or programmable logic device (PLD), and this computing machine or programmable logic device (PLD) configure as follows or adjust, and namely performs in method described here.
Another embodiment comprises computing machine, installs the computer program for performing method described here on that computer.
Comprise following equipment or system according to another embodiment of the present invention, this equipment or system are used for the computer program being used for performing at least one in method described here to transfer to receiver.Transmit and such as can carry out in the mode of electronics or optics.Receiver can be computing machine, mobile device, memory device or similar equipment.This equipment or system such as can comprise the file server for computer program being transferred to receiver.
In certain embodiments, programmable logical device (gate array of such as field-programmable, FPGA) can be used in, and performs some or all functions in method described here.In certain embodiments, the gate array of field-programmable can with microprocessor acting in conjunction, to perform method described here.Usually, the method performs from the angle of arbitrary hardware device in certain embodiments.This hardware device can be general hardware, special hardware, such as ASIC as computer processor (CPU) or the method.
Above-described embodiment is only the explanation of principle of the present invention.It being understood that the amendment of layout described here and details can give other those skilled in the art's enlightenment.Therefore wittingly: the present invention by means of only claim protection domain restriction and not by according to the elaboration of embodiment and be described in this concrete details presented limit.
Claims (18)
1. one kind for measuring the machine direction (36 of the carbon fibre material (18) of the object (10) that will check
a, B) equipment, have
For detecting the polarised direction (34 of the light (32) reflected by the described object (10) that will check
a, B) polarization sensor (24), wherein, described polarised direction provides described machine direction.
2. equipment according to claim 1, described equipment also has the light source (22) for illuminating the described object (10) that will check.
3. equipment according to claim 2, wherein, described light source design is make to illuminate the described object 10 that will check with light 30, in the scope of described light between 400 and 1000nm.
4. equipment according to any one of claim 1 to 3, wherein, described polarization sensor (24) has the camera of the polarization sensitive for recording the described object (10) that will check, to obtain the detection of the position resolution of described polarised direction, and then obtain the scanning of position resolution of described polarised direction.
5. equipment according to claim 4, wherein, the camera of described polarization sensitive has pel array (38) and the described object (10) for checking and is imaged onto camera lens (40) on described pel array (38), wherein, the pixel (44) of described pel array (38) is organized into super-pixel (46), make each super-pixel (46) have the pixel (44) of described pel array (38), described pixel is responsive for different polarised directions.
6. equipment according to claim 5, wherein, each pixel has photosensitive region and is connected to the polarisation filter structure of described photosensitive region upstream, and wherein, described filter construction has the grid of size in sub-wavelength coverage or structural detail.
7. the equipment according to any one of claim 4 to 6, wherein, described equipment de-sign is used for the scanning of the described position resolution exporting described machine direction in color-coded mode.
8. equipment according to any one of claim 1 to 7, described equipment also has the spectral filter for carrying out spectral filtering to the described light by described object reflection, and the polarised direction of described light is detected by described polarization sensor (24).
9. equipment according to claim 8, wherein, in the passband of the described spectral filter scope between 400 and 1000nm.
10. according to equipment in any one of the preceding claims wherein, wherein, described equipment has control device, and described control device is designed to make to depend on the executor of described position controlling for keeping and change described object relative to the positional information of the position of described polarization sensor (24) and the described machine direction ground of described object about described object (10).
11. according to equipment in any one of the preceding claims wherein, wherein, described equipment has control device (26), described control device is designed to make to depend on and controls for making described object and another object executor superposed on one another about described object (10) relative to the positional information of the position of described polarization sensor (24) and the described machine direction ground of described object, thus making under state superposed on one another, described machine direction has predetermined orientation relative to another object described.
12. according to equipment in any one of the preceding claims wherein, wherein, described equipment has control device (26), and described control device depends on determines the orientation of described machine direction relative to the shape of described object (10) about described object (10) relative to the described machine direction ground of the positional information of the position of described polarization sensor (24) and described object.
13. according to equipment in any one of the preceding claims wherein, wherein, described equipment has treating apparatus, described treating apparatus is designed to the machine direction made in the face parametrization on the surface (14) determining three-dimensional machine direction or described object (10) from the described polarised direction detected, with make determined described machine direction and described surface (14) tangent and be arranged in a plane, described plane is launched by the direction of the described light of reflection and the described polarised direction that detects.
14. according to equipment in any one of the preceding claims wherein, and wherein, described equipment has analytical equipment (26), and described analytical equipment is designed to, and checks whether described machine direction meets predetermined condition, to check the quality of described object.
15. 1 kinds, for the system of carbon fiber composite structure mode manufacturing object, have
For measure the machine direction of carbon fiber layer (56), equipment (20) according to any one of aforementioned claim 1 to 14; With
For the executor (54) that basis makes described carbon fiber layer superposed on one another when correcting the described machine direction of described carbon fiber layer by the measurement of described equipment (20).
16. systems according to claim 15, described system also has the device (60) for arranging plastics for described carbon fiber layer, thus described carbon fiber layer is embedded in described plastics after described plastic hardening.
17. 1 kinds for measuring the machine direction (36 of the carbon fibre material (18) of the object (10) that will check
a, B) method, have
Illuminate the described object (10) that will check; With
Detect the polarised direction (34 of the described light (32) reflected by the described object (10) that will check
a, B), wherein, described polarised direction provides described machine direction.
18. 1 kinds of computer programs, have when said program is run on for performing the program code of method according to claim 17.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012220923.9 | 2012-11-15 | ||
| DE102012220923.9A DE102012220923B4 (en) | 2012-11-15 | 2012-11-15 | Measurement of a fiber orientation of a carbon fiber material and production of a component in carbon fiber composite construction |
| PCT/EP2013/073719 WO2014076128A2 (en) | 2012-11-15 | 2013-11-13 | Measuring a fibre direction of a carbon fibre material and producing an object in a carbon-fibre composite construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104838255A true CN104838255A (en) | 2015-08-12 |
| CN104838255B CN104838255B (en) | 2019-08-27 |
Family
ID=49585381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380059527.5A Expired - Fee Related CN104838255B (en) | 2012-11-15 | 2013-11-13 | The measurement of carbon fibre material machine direction and the manufacture of object carbon fiber composite structure mode |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2920579A2 (en) |
| JP (1) | JP6328130B2 (en) |
| CN (1) | CN104838255B (en) |
| DE (1) | DE102012220923B4 (en) |
| WO (1) | WO2014076128A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225927A (en) * | 2016-07-05 | 2016-12-14 | 江苏德赛化纤有限公司 | A kind of detection method of colored fibre form and aspect |
| CN109916339A (en) * | 2019-03-21 | 2019-06-21 | 浙江理工大学 | A kind of method and device of the measurement fiber angles based on photometric stereo |
| CN110749554A (en) * | 2018-07-23 | 2020-02-04 | 波音公司 | Characterization of the ratio of melted tissue strands in a layer of fibrous material |
| CN113039048A (en) * | 2018-11-07 | 2021-06-25 | 西门子歌美飒可再生能源服务股份有限公司 | Method and system for producing a fiber composite component of a wind energy installation |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3006923A1 (en) * | 2014-10-07 | 2016-04-13 | Apodius UG | Method for determining the orientation of a fibrous structure |
| JP6922830B2 (en) * | 2018-04-27 | 2021-08-18 | トヨタ自動車株式会社 | How to manufacture high pressure tank |
| JP6984543B2 (en) * | 2018-05-29 | 2021-12-22 | トヨタ自動車株式会社 | Manufacturing method of high pressure tank |
| DE102019112317A1 (en) * | 2019-05-10 | 2020-11-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for the detection of surface defects |
| DE102019112312A1 (en) * | 2019-05-10 | 2020-11-12 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for three-dimensional detection of a fiber material surface |
| DE102019116750A1 (en) * | 2019-06-20 | 2020-12-24 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Method and device for determining defects in a fiber material and fiber laying system for this purpose |
| WO2023171058A1 (en) * | 2022-03-08 | 2023-09-14 | 東レ株式会社 | Polarization evaluation device |
| DE102022107558A1 (en) | 2022-03-30 | 2023-10-05 | Schmidt & Heinzmann Gmbh & Co Kg | Object recognition device, processing system and method for recognizing at least one object |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231136A (en) * | 1984-05-01 | 1985-11-16 | Kanzaki Paper Mfg Co Ltd | Measurement of fiber orientation in paper |
| US20020004707A1 (en) * | 2000-05-02 | 2002-01-10 | Trudeau Allen E. | Fiber orientation verification for a composite article |
| WO2007070360A2 (en) * | 2005-12-09 | 2007-06-21 | Envirofuels, Llc | Lubricity improver compositions and methods for improving lubricity of hydrocarbon fuels |
| WO2012022972A2 (en) * | 2010-08-19 | 2012-02-23 | University Of Nottingham | An apparatus and method for the layup of sheets to form a composite article and composite articles made thereby |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2720699A1 (en) * | 1977-05-18 | 1978-11-09 | Hughes Aircraft Co | PROCESS FOR PRODUCING A FIBER REINFORCED COMPOSITE MATERIAL |
| JPH051993A (en) * | 1991-06-26 | 1993-01-08 | Ishikawajima Harima Heavy Ind Co Ltd | Orientation measurement device for striplike fabric material |
| JP2704704B2 (en) * | 1994-04-06 | 1998-01-26 | 日本製紙株式会社 | Method for measuring fiber orientation on paper surface |
| DE19913924A1 (en) * | 1999-03-26 | 2000-09-28 | Voith Sulzer Papiertech Patent | Instrument determining fiber orientation in band of paper during manufacture employs infrared light source with polarization filters, achieving accurate results in any of several configurations |
| JP3550381B2 (en) * | 2001-06-27 | 2004-08-04 | 松下電器産業株式会社 | Polarization analyzer and polarization analysis method |
| WO2007070306A2 (en) * | 2005-12-09 | 2007-06-21 | Arete Associates | Miniature integrated multisectral/multipolarization digital camera |
| JP2008016918A (en) * | 2006-07-03 | 2008-01-24 | Matsushita Electric Ind Co Ltd | Image processor, image processing system, and image processing method |
| JP2009042040A (en) * | 2007-08-08 | 2009-02-26 | Oji Keisoku Kiki Kk | Polarization analyzer utilizing polarization imaging camera |
| JP2009192520A (en) * | 2007-11-15 | 2009-08-27 | Nikon Corp | Surface inspection device |
| DE102008014334B4 (en) * | 2008-03-14 | 2009-12-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Integrated polarization sensor |
| DE102010038522B4 (en) * | 2010-07-28 | 2012-03-01 | Edevis Gmbh | Method for determining a course of fibers of a preform |
-
2012
- 2012-11-15 DE DE102012220923.9A patent/DE102012220923B4/en active Active
-
2013
- 2013-11-13 WO PCT/EP2013/073719 patent/WO2014076128A2/en active Application Filing
- 2013-11-13 EP EP13791986.6A patent/EP2920579A2/en not_active Withdrawn
- 2013-11-13 CN CN201380059527.5A patent/CN104838255B/en not_active Expired - Fee Related
- 2013-11-13 JP JP2015542257A patent/JP6328130B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231136A (en) * | 1984-05-01 | 1985-11-16 | Kanzaki Paper Mfg Co Ltd | Measurement of fiber orientation in paper |
| US20020004707A1 (en) * | 2000-05-02 | 2002-01-10 | Trudeau Allen E. | Fiber orientation verification for a composite article |
| WO2007070360A2 (en) * | 2005-12-09 | 2007-06-21 | Envirofuels, Llc | Lubricity improver compositions and methods for improving lubricity of hydrocarbon fuels |
| WO2012022972A2 (en) * | 2010-08-19 | 2012-02-23 | University Of Nottingham | An apparatus and method for the layup of sheets to form a composite article and composite articles made thereby |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225927A (en) * | 2016-07-05 | 2016-12-14 | 江苏德赛化纤有限公司 | A kind of detection method of colored fibre form and aspect |
| CN106225927B (en) * | 2016-07-05 | 2017-09-29 | 江苏德赛化纤有限公司 | A kind of detection method of colored fibre form and aspect |
| CN110749554A (en) * | 2018-07-23 | 2020-02-04 | 波音公司 | Characterization of the ratio of melted tissue strands in a layer of fibrous material |
| CN113039048A (en) * | 2018-11-07 | 2021-06-25 | 西门子歌美飒可再生能源服务股份有限公司 | Method and system for producing a fiber composite component of a wind energy installation |
| CN109916339A (en) * | 2019-03-21 | 2019-06-21 | 浙江理工大学 | A kind of method and device of the measurement fiber angles based on photometric stereo |
| CN109916339B (en) * | 2019-03-21 | 2020-11-06 | 浙江理工大学 | Method and device for measuring fiber angle based on illumination stereoscopic system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012220923A1 (en) | 2014-05-15 |
| DE102012220923B4 (en) | 2014-07-10 |
| CN104838255B (en) | 2019-08-27 |
| WO2014076128A2 (en) | 2014-05-22 |
| JP6328130B2 (en) | 2018-05-23 |
| JP2015537211A (en) | 2015-12-24 |
| EP2920579A2 (en) | 2015-09-23 |
| WO2014076128A3 (en) | 2014-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104838255A (en) | Measuring a fibre direction of a carbon fibre material and producing an object in a carbon-fibre composite construction | |
| CN101900534B (en) | Three dimensional shape measurement apparatus and method | |
| Golnabi et al. | Design and application of industrial machine vision systems | |
| CN102792124B (en) | The formation method strengthened and device | |
| EP2032972B1 (en) | Method and system for two-dimensional and three-dimensional inspection of a workpiece | |
| US8050486B2 (en) | System and method for identifying a feature of a workpiece | |
| CN103398674B (en) | Non contact wheel alignment sensor and method | |
| CN109255323A (en) | A kind of fingerprint recognition structure, display base plate and display device | |
| KR101622865B1 (en) | Inspection device and inspection method for pattern phase difference filter | |
| CN1297796C (en) | Chromatographic scanning three-dimension measuring method and device linear array photoelectric sensor | |
| CN101943571A (en) | Circuit board testing fixture and inspection method | |
| EP2325625A1 (en) | Inspection system | |
| TWI471542B (en) | Tire shape inspection device and tire shape inspection method | |
| CN104034280A (en) | Shape measurement apparatus and method | |
| TWI629665B (en) | Defect inspection method and defect inspection system | |
| CN101738171A (en) | Apparatus and method for measuring three-dimensional shape of a wood block | |
| CN106824806A (en) | The detecting system and detection method of the low module plastic gear based on machine vision | |
| Schöberl et al. | Measuring strand orientation in carbon fiber reinforced plastics (CFRP) with polarization | |
| US20030178588A1 (en) | Defect detection apparatus and storage medium readable by computer | |
| US9234836B2 (en) | Measurement of a fiber direction of a carbon fiber material and fabrication of an object in carbon fiber composite technique | |
| CN101464255B (en) | Quantitative stress-strain polarimetry machine | |
| CN111369533B (en) | Rail profile detection method and device based on polarization image fusion | |
| JP5783569B2 (en) | Straight line detection device, straight line detection method, straight line detection program, and imaging system | |
| JP7151469B2 (en) | Sheet defect inspection device | |
| US10504802B2 (en) | Target location in semiconductor manufacturing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Munich, Germany Applicant after: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V. Applicant after: University FRIEDRICH ALEXANDER ER Address before: Munich, Germany Applicant before: Franhofer transportation Application Research Co.,Ltd. Applicant before: University FRIEDRICH ALEXANDER ER |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20211113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |