EP3301210B1 - Fil détecteur de lumière - Google Patents

Fil détecteur de lumière Download PDF

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Publication number
EP3301210B1
EP3301210B1 EP17172464.4A EP17172464A EP3301210B1 EP 3301210 B1 EP3301210 B1 EP 3301210B1 EP 17172464 A EP17172464 A EP 17172464A EP 3301210 B1 EP3301210 B1 EP 3301210B1
Authority
EP
European Patent Office
Prior art keywords
yarn
sensor
conductor
capacitance
sensor yarn
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
Application number
EP17172464.4A
Other languages
German (de)
English (en)
Other versions
EP3301210A3 (fr
EP3301210A2 (fr
Inventor
Bastian BAESCH
Christoph RIETHMÜLLER
Simon HOINKIS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Original Assignee
Deutsche Institute fuer Textil und Faserforschung Denkendorf DITF
Priority date (The priority date 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 date listed.)
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Publication of EP3301210A2 publication Critical patent/EP3301210A2/fr
Publication of EP3301210A3 publication Critical patent/EP3301210A3/fr
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/12—Threads containing metallic filaments or strips
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0076—Photovoltaic fabrics
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0088—Fabrics having an electronic function
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/242—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads inorganic, e.g. basalt
    • D03D15/25—Metal
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/41—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with specific twist
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/547—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads with optical functions other than colour, e.g. comprising light-emitting fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10—Patterned fabrics or articles
    • D04B1/12—Patterned fabrics or articles characterised by thread material
    • D04B1/123—Patterned fabrics or articles characterised by thread material with laid-in unlooped yarn, e.g. fleece fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/18—Physical properties including electronic components
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0243—Fabric incorporating additional compounds enhancing functional properties
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2403/00—Details of fabric structure established in the fabric forming process
    • D10B2403/02—Cross-sectional features
    • D10B2403/024—Fabric incorporating additional compounds
    • D10B2403/0243—Fabric incorporating additional compounds enhancing functional properties
    • D10B2403/02431—Fabric incorporating additional compounds enhancing functional properties with electronic components, e.g. sensors or switches

Definitions

  • the present invention relates to a sensor yarn for use in a textile material part.
  • the sensor yarn has a thread core whose longitudinal central axis extends in an extension direction.
  • the thread core may be monofilament or formed of several fibers or filaments.
  • the thread core is preferably elastically extensible in the direction of extension.
  • the extensibility of the sensor yarn can be adapted to the material in which the sensor yarn is integrated and can therefore vary within a wide range.
  • a first conductor and a second conductor are each helically or helically wound with respect to the direction of extent.
  • the sensor yarn can be designed as a thread or as Umwindegarn.
  • the two conductors can therefore be wound in and / or around the thread core.
  • the two conductors are electrically isolated from each other.
  • at least one of the two conductors can be insulated by a lacquer or a coating around the electrically conductive core.
  • a sensor yarn is for example in DE 10 2008 003 122 A1 described.
  • the yarn is there to determine tensile stresses in a medical knit or knitted fabric.
  • the yarn has a core thread about which a binding thread may be wound in one embodiment. If the yarn is bent or stretched in its direction of extent, the electrical property of the yarn, for example the electrical conductivity and / or the capacitance, changes.
  • a bimetallic thread can be used as the binding thread.
  • Another electrically conductive yarn is in DE 10 2006 017 340 A1 disclosed.
  • a non-conductive multifilament yarn is wrapped, which should preferably lay flat on the core thread, so that when touching two electrically conductive yarns in a textile material no accidental electrically conductive contact.
  • WO 2007/020511 A1 describes an energy-active composite yarn with a data core and a functional filament.
  • the composite yarn may have, for example, electrically, optically or magnetically active material.
  • sensory textile materials are used in a wide variety of applications.
  • such sensory textile materials can detect pressure forces, tensile forces or the like.
  • a localization of the applied force is advantageous or necessary.
  • sensory yarns are then incorporated into the fabric in a dense matrix pattern to form a two-dimensional pattern of intersecting sensory yarns. If a force acts on this surface at a certain point or approaches an object to this surface, it can depend on the density of the sensory A local determination of the force or the approach of an object by the sensory matrix.
  • copper-doped zinc sulfide (ZnS: Cu) or a doped semiconductor material may be used.
  • ZnS: Cu copper-doped zinc sulfide
  • the limited mobile free charges in the material form dipoles in the electric field depending on the intensity of the light irradiation, whereby the dielectric constant and thus the measurable total capacitance changes.
  • the photostrictive material may be a polymer material and / or a semiconductor material and / or a ferroelectric material and / or a magnetic material and / or a magnetoelectric material.
  • the thread core may be made of a polymer material doped with a semiconductor material.
  • the polymer material may additionally or alternatively be doped with a semiconductor material also doped with another suitable material, for example with bismuth ferrite.
  • a sensory textile material part may have at least one above-described sensor yarn according to the invention and optionally at least one sensor yarn according to another embodiment explained below.
  • the textile material part can be designed as a knit fabric or as a fabric.
  • the sensor yarns can be introduced into a fabric, for example, as a weft thread or as a warp thread.
  • the sensor yarns can also be placed in a fabric or knitwear and held by non-sensory yarns or threads in the fabric.
  • the sensor yarns are arranged without crossing in a direction of the textile material, preferably in the direction of the weft threads.
  • the at least one sensor yarn can be incorporated, for example, as standing thread.
  • the sensor yarn according to a further embodiment can be executed as a Umwindegarn with a thread core or as a thread.
  • the sensor yarn has at least one first and at least one second conductor, wherein at least one of the two conductors is helically wound with respect to the extension direction of the sensor yarn.
  • the two conductors can be crossing and / or each with the same Windungsste Trent next to each other without crossing wound on the thread core or the thread core can have or form one of the two conductors (Umwindegarn).
  • one or both conductors may be helically wound.
  • the two conductors are electrically insulated from each other, whereby the conductor pair of at least one first conductor and at least one second conductor together forms further yarn components, for example with the thread core, a capacitive component.
  • the further yarn components or the thread core represents the dielectric of the capacitive component.
  • This capacitive component is characterized in that its capacitance per unit length changes in the extension direction of the thread core and thus in the extension direction of the sensor yarn.
  • the change in the capacitance per unit length of the capacitive component can be provided continuously and / or in stages or sections.
  • the capacitive component in the extension direction may have successive yarn sections which have different capacities.
  • the capacity per unit length in a yarn section can be constant. It is also possible, at least in sections, to continuously change the capacitance per unit length of the capacitive component, for example initially to increase continuously from a minimum value to a maximum value of the capacitance per unit length and / or from the maximum value to Minimize the minimum value of the capacity per unit length.
  • the pattern of the continuously or sectionally changing capacity per unit length can be repeated from a certain yarn length of the sensor yarn.
  • Any two portions of the sensor yarn according to the further embodiment have a mutually different capacity per unit length, if they have different total capacities for the same length.
  • a force acting on the sensor yarn force such as compressive force and / or tensile force, a force change, media exposure to a liquid or vapor medium or an approach of an object, a change in temperature (due to the change in length of Sensorgarns) or the like be determined.
  • the sensor yarn according to the further embodiment provides a sensory textile material part, in which the sensor yarns can no longer be crossed in a matrix, but only parallel to each other in one direction can be arranged. In the case of an action to be sensed, the total capacity of a sensor yarn incorporated in the textile material part changes.
  • the capacitance per unit length of the capacitive component in a first yarn section is different from the capacitance per unit length in another second yarn section of the sensor yarn according to the further embodiment.
  • at least two yarn sections may be present, to each of which a substantially constant capacitance per unit length is assigned.
  • the first yarn section may have a first capacity per unit length
  • the second yarn section may have a second capacity per unit length
  • a third yarn section may have a third capacity per unit length, and so on.
  • a transition section may be present in each case in which the capacitance changes continuously.
  • the change in the capacitance per unit length in the direction of extent in one embodiment according to the further embodiment is at least 0.03 pF and / or at most 250 pF.
  • the difference between a minimum capacity yarn section per unit length and a maximum capacity yarn section per unit length may be up to 250 pF or more.
  • the change of the capacitance per unit length can be effected by providing a change in the number of turns per unit length of the thread core.
  • a change in the pitch of the helical winding of the at least one first conductor and / or the at least one second conductor may be provided.
  • the slopes of the helical winding of the two conductors can have the same amount and / or the same value in a common yarn section.
  • the pitch of the two conductors in a common yarn section is different in size in terms of magnitude and / or value.
  • An additional or alternative measure for changing the capacitance per unit length of the capacitive component can be achieved in that the dielectric constant of the thread core changes in the direction of extent. This can be done, for example, that different materials or material combination with a each other dielectric constant be used for the thread core.
  • a plastic used for producing the thread core can be combined or doped in sections with at least one further material in order to change the relative permittivity. By the material and / or the proportion of doping relative to the base material of the thread core, a change in the dielectric constant can be achieved.
  • the thread core may contain or be made of a polymeric material.
  • the thread core may comprise polyurethane and be made in one embodiment of spandex.
  • the at least one first conductor and / or the at least one second conductor may contain metal and be made, for example, from wires, in particular copper wires.
  • the wires can be provided with a paint or a coating for electrical insulation.
  • the conductors preferably have a diameter of not more than 0.1 mm.
  • the at least one first conductor and / or the at least one second conductor can each run around the thread core in a multi-start helix.
  • the two conductors can also be formed by a respective conductor layer which is applied to the thread core, wherein the conductor layers are electrically insulated from one another.
  • the capacity per unit length can be changed.
  • the shape and in particular the layer thickness of at least one of the conductor layers can also be varied to change the capacity per unit length.
  • the sensor yarn 10 has a thread core 11 extending in an extension direction E.
  • the thread core 11 may be monofilament or formed by a plurality of fibers or filaments. It can consist of one single material or a combination of several materials.
  • the thread core 11 comprises a polymeric material.
  • the thread core 11 is preferably elastically stretchable in the extension direction E and can be elastically stretched in the direction of extension E.
  • the thread core 11 in the extension direction E different materials and / or different material combinations and / or different proportions of the materials have a combination of materials, which will be discussed later in more detail.
  • At least one first conductor 12 and at least one second conductor 13 are wound around the thread core 11.
  • first conductor 12 and a single second conductor 13 are illustrated in each case.
  • a plurality of first conductor 12 and second conductor 13 may be present.
  • the conductors 12, 13 comprise or are made of an electrically conductive material, in particular metal Material produced.
  • the conductors 12, 13 are made of a metallic wire, preferably a copper wire.
  • the conductors 12, 13 have on their outer surface an electrically insulating coating or an electrically insulating lacquer.
  • the conductors have a diameter of up to 0.1 mm or 0.2 mm.
  • the first conductor 12 and the second conductor 13 form a conductor pair 14.
  • the conductor pair 14 is part of a capacitive component 15.
  • the capacitive component 15 of a sensor yarn of a specific length has a total capacitance CG.
  • FIG. 1b the electrical circuit diagram for the sensor yarn 10 with the capacitive component 15 is illustrated.
  • FIGS. 2 and 3 1 illustrates a first embodiment of the sensor yarn 10, which is referred to as the first sensor yarn 10a.
  • the capacitive component 15 has a capacitance C1 changing in the extension direction E per unit length l of the sensor yarn.
  • the capacitance C1 per unit length l indicates the capacitance of the capacitive component 15 at the viewing point of the sensor yarn 10a, wherein this capacitance C1 changes per unit length l in the extension direction E.
  • the total capacity CG is therefore not only dependent on the length of a sensor yarn 10 in the direction of extent E, but additionally varies spatially in the direction of extent E. Two equal-length sections of a sensor yarn 10 can thus have a different total capacity CG.
  • the capacitance C1 per unit length l changes in sections.
  • a first yarn section 21, a second yarn section 22 and a third yarn section 23 are illustrated.
  • the sensor yarn 10 or its capacitive component 15 has a different capacitance C 1 per unit length l.
  • the capacitance C1 per unit length l in a respective yarn section 21, 22, 23 is substantially constant.
  • the sensor yarn 10 in the first yarn section 21 has a first capacity Cl 1 per unit length l, in the second yarn section 22 a second capacity Cl 2 per unit length l and in the third yarn section 23 a third capacity Cl 3 per unit length l.
  • the capacity Cl per unit length l can be at least partially continuously increased or decreased.
  • the capacitance C L per unit length L may be steadily increased from a minimum value of, for example, 10 pF to a maximum value of 250 pF or more, and / or conversely continuously reduced from the maximum value to the minimum value.
  • Such continuously changing sections may also be provided sequentially in the sensor yarn 10.
  • the value of the capacitance Cl per unit length l, which changes in the extension direction E, is determined at the in FIG. 2 illustrated embodiment of the first sensor yarn 10a achieved in that the slope S of a helix of the helically wound first conductor 12 and / or the second conductor 13 with respect to the extension direction E, ie the longitudinal central axis of the sensor yarn 10 varies.
  • the pitch S of a helical turn of the two conductors 12, 13 has a first slope amount S 1 .
  • the pitch S of the helical turns of the first and second conductors 12, 13 in the second yarn section 22 has a second pitch amount S 2 and in the third yarn section 23 a third pitch amount S 3 .
  • the slope amounts are substantially constant in the respective yarn section 21, 22, 23. Since the pitch between two adjacent in the extension direction yarn sections 21 and 22 or 22 and 23 for manufacturing reasons often can not be changed suddenly, between two adjacent yarn sections 21 and 22 and 22 and 23 each have a transition section 24 is present. In this transition section 24, the pitch of the first conductor 12 and / or the second conductor 13 is continuously increased or decreased to provide a transition between the respective slope amounts S 1 and S 2 or S 2 and S 3 . These transitional sections 24 could optionally also be dispensed with if a transition point with an abruptly changing pitch between two yarn sections 21, 22 with different pitch amounts can be produced by the manufacturing process of the sensor yarn 10.
  • the slope amounts for the two conductors 12, 13 are the same size, but have different signs. As a result, intersection points in the windings of the two conductors 12, 13 are formed. It is not absolutely necessary that the pitch amounts for the two conductors 12, 13 in a yarn section 21 are equal, but the pitch amounts of the two conductors 12, 13 may also be different from each other. In addition, only the pitch of the first conductor 12 or the second conductor 13 can be changed between two adjacent yarn sections with different capacitance Cl per unit length l.
  • FIG. 3 is another way to change the capacitance C1 per unit length l for the capacitive element 15 illustrated.
  • the pitch of the winding of the two conductors 12, 13 in the different yarn sections 21, 22, 23 can remain essentially unchanged.
  • the dielectric constant or permittivity ⁇ is changed according to the example.
  • the dielectric which is formed, for example, by the thread core 11, changed in sections.
  • the thread core 11 has, for example, in the first yarn section 21 a first dielectric constant ⁇ 1 , in the second yarn section 22 a second dielectric constant ⁇ 2 and in the third yarn section 23 a third dielectric constant ⁇ 3 .
  • the different dielectric constants are achieved by different materials or material compositions in the yarn sections 21, 22, 23.
  • the thread core 11 may have an at least partially doped base material. It is expedient here if the dielectric constant of the base material differs sufficiently from the added doping material, for example by at least 10 to 30%. To change the dielectric constant ⁇ , for example, the proportion of the doping material relative to the base material can be increased. Additionally or alternatively, different doping materials or different combinations of doping materials in the different yarn sections 21, 22, 23 may be used.
  • the material that changes the dielectric constant is introduced into the base material of the thread core 11 as a doping material. Furthermore, it would also be possible to provide a coating enclosing the thread core 11 and the conductors 12, 13, which has the material which alters the dielectric constant contains or consists of such.
  • a sensory textile material part 16 can be produced, as shown schematically in FIGS FIGS. 5 and 6 is illustrated.
  • effects such as a force, for example, a compressive force and / or a tensile force, influences by liquid media, such as water, approaches by objects, etc. can be detected.
  • location information is already provided by the sensor yarn 10a, via which it is possible to determine the position of the action.
  • the effect when several of the sensor yarns 10 in a textile material part 16 are arranged parallel to one another, the effect usually has an effect not only on the total capacity CG of a single sensor yarn 10 but on the total capacity CG of several sensor yarns 10.
  • a very precise location determination of the action on the textile material part 16 can take place without a matrix-like arrangement of sensor yarns 10 with intersection points being necessary.
  • This has the advantage that the textile material part 16 only has to be electrically contacted on one side for connection to the evaluation unit 17. This considerably simplifies the construction of a sensory textile material part 16.
  • the textile material part 16 may be in the textile material part 16 to knitwear, such as a knitted fabric or a knitted fabric ( FIG. 5 ) or a tissue ( FIG. 6 ) act.
  • the sensor yarns 10 are inserted as Steherfäden in the fabric and do not participate in the stitch formation itself.
  • the sensor yarns 10 are incorporated as weft threads in a fabric.
  • one or more conventional, non-sensory textile threads 25 can be woven in between two sensor yarns 10 in each case.
  • the number and density of the sensor yarns in a textile material part 16 depend on the specific application.
  • the textile material 16 has, in addition to the sensor yarns 10 arranged in parallel, one or more conventional textile threads 25.
  • the non-sensory textile thread 25 can be used for stitch formation ( FIG. 5 ) or as a weft thread and warp thread ( FIG. 6 ) be used.
  • the representations in the FIGS. 5 and 6 are not to scale and only schematic.
  • the sensor yarns 10 may have the same or a different thickness (titre) than the other textile threads 25 used.
  • FIG. 2 illustrates a second embodiment of the sensor yarn 10 according to the invention, referred to as the second sensor yarn 10b.
  • the capacitance C1 per unit length l which has the capacitive component 15 of the sensor yarn 10
  • the extension direction E changing capacity Cl per unit length l as the first sensor yarn 10a provide.
  • the second sensor yarn 10b contains a photosensitive material 30.
  • This photosensitive material 30 can be attached anywhere on the sensor yarn 10b or introduced into the sensor yarn 10b.
  • the photosensitive material 30 is introduced as doping material into the base material of the thread core 11.
  • the thread core 11 could also consist of photosensitive material.
  • FIGS. 4a and 4b Based on FIGS. 4a and 4b is schematically seen that takes place by the irradiation of the second sensor yarn 10b with light L, a change in length of the thread core 11 by photostriction.
  • the length of a longitudinal section A changes by a difference d when the second sensor yarn 10b is irradiated with the light L.
  • This causes a change in the total capacity CG of the sensor yarn 10b irradiated with light L. If the intensity of the incident light L changes, the total capacity CG also changes.
  • the photorefractive material 30 for example, a polymer material, a semiconductor material, a ferroelectric material, a magnetic material, or a magnetoelectric material may be used.
  • a polymer material for example, a polymer material, a semiconductor material, a ferroelectric material, a magnetic material, or a magnetoelectric material may be used.
  • bismuth ferrite can be used as a photostrictive material.
  • the photosensitive material is selected there in such a way that the intensity of the light causes a change in the dielectric constant.
  • a doped semiconductor material such as copper-doped zinc sulfide (ZnS: Cu) may be used.
  • ZnS copper-doped zinc sulfide
  • dipoles form in the electric field and change the dielectric constant, which in turn alters the detectable total capacitance of the second sensor path 10b.
  • the photosensitive second sensor yarn 10b can thus be used to detect the presence of incident light L or a change in intensity.
  • a lighting sensor or even a brightness sensor could thereby be realized.
  • Such a sensor could be integrated by means of the sensor yarn 10b into a shading textile, for example a roller blind or the like, which is moved into its extended or retracted position as a function of the solar radiation.
  • the sensors could therefore be an integral part of a sun blinds and could be dispensed with a separate sensor.
  • one of the two conductors for example the second conductor 13 can also be formed by the thread core 11 ( FIG. 7 ).
  • the sensor yarn 10a, 10b can also be embodied as a thread without a thread core 11 (FIG. FIG. 8 not according to the invention). If no thread core 11 is present, the two conductors 12, 13 with other filaments (hatching in FIG. 8 ) combined to form the twine.
  • At least one of the two conductors is wound helically with respect to the extension direction E.
  • the first sensor yarn 10a and the second sensor yarn 10b can also be used together in a textile material part 16 if both the action of light L, and an approach of an article to the textile material part 16 and / or a force on the textile material part 16 and / or a Influence by a liquid or vaporous medium and / or another influence affecting the total capacity CG of a sensor yarn 10 is to be detected.
  • the invention relates to a sensor yarn 10.
  • the sensor yarn 10b has photosensitive material 30, so that a change in length can be effected by incident light L.
  • a change in length or a different deformation of the sensor yarn 10b causes the total capacity CG of the respective sensor yarn 10b to change, which can be determined by an evaluation unit 17.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Woven Fabrics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (14)

  1. Fil capteur (10b),
    comportant un noyau de fil (11) qui s'étend dans une direction d'extension (E),
    comportant au moins un premier conducteur (12) et au moins un deuxième conducteur (13), au moins un des deux conducteurs (12, 13) étant enroulé en hélice par rapport à la direction d'extension (E),
    le premier conducteur (12) au moins unique et le deuxième conducteur (13) au moins unique étant isolés électriquement l'un par rapport à l'autre et étant une partie constitutive d'un composant capacitif (15),
    et le fil capteur (10b) comportant un matériau photosensible (30) de telle manière que dans le cas d'une exposition du fil capteur (10b) à un rayonnement lumineux (L) il se produit une variation de la capacité totale (CG) du composant capacitif (15).
  2. Fil capteur selon la revendication 1,
    caractérisé en ce qu'en ce qui concerne le matériau photosensible (30) il s'agit de sulfure de zinc dopé au cuivre, d'un matériau polymère, d'un matériau semi-conducteur, d'un matériau ferroélectrique, d'un matériau magnétique ou d'un matériau magnétoélectrique.
  3. Fil capteur selon la revendication 1 ou 2,
    caractérisé en ce que le matériau photosensible (30) est présent dans le noyau de fil (11) ou sur le noyau de fil (11).
  4. Produit de produit textile (16),
    comportant plusieurs fils capteurs (10, 10b) selon l'une des revendications qui précèdent.
  5. Partie de produit textile selon la revendication 4,
    caractérisée en ce que les fils capteurs (10, 10a, 10b) sont disposés de manière à ne pas être croisés.
  6. Partie de produit textile selon la revendication 4 ou 5,
    caractérisée en ce qu'au moins un fil capteur (10a) supplémentaire par rapport aux plusieurs fils capteurs (10) est présent, le fil capteur (10a) supplémentaire au moins unique présentant
    un noyau de fil (11) qui s'étend dans une direction d'extension (E),
    au moins un premier conducteur (12) et au moins un deuxième conducteur (13), au moins un des deux conducteurs (12, 13) étant enroulé en hélice par rapport à la direction d'extension (E),
    le premier conducteur (12) au moins unique et le deuxième conducteur (13) au moins unique étant isolés électriquement l'un par rapport à l'autre et étant une partie constitutive d'un composant capacitif (15),
    et le composant capacitif (15) présentant une capacité (Cl) par unité de longueur (l) du fil capteur (10) qui varie dans la direction d'extension (E).
  7. Partie de produit textile selon la revendication 6,
    caractérisée en ce qu'un des deux conducteurs (12) du fil capteur supplémentaire (10a) au moins unique est réalisé dans le noyau de fil (11) et en ce que l'autre conducteur (13) du fil capteur (10a) est enroulé autour du noyau de fil (11), ou en ce que les deux conducteurs (12, 13) du fil capteur supplémentaire (10a) au moins unique, sont enroulés autour du noyau de fil (11), ou en ce que l'un des deux conducteurs (13) du fil capteur supplémentaire (10a) au moins unique est une partie constitutive du noyau de fil (11) et que l'autre conducteur (13) du fil capteur supplémentaire (10a) est enroulé autour du noyau de fil (11).
  8. Partie de produit textile selon la revendication 6 ou 7,
    caractérisée en ce que la capacité (Cl) par unité de longueur (1) est différente dans un premier tronçon de fil (21) du fil capteur supplémentaire (10a) au moins unique, de la capacité (Cl) par unité de longueur (1) dans un autre tronçon de fil (22, 23) du fil capteur supplémentaire (10a).
  9. Partie de produit textile selon la revendication 8,
    caractérisée en ce que le fil capteur supplémentaire (10a) au moins unique présente au moins deux tronçons de fil (21, 22, 23) dans lesquels le composant capacitif (15) présente dans chaque cas une capacité (Cl1, Cl2, Cl3) par unité de longueur (l) essentiellement constante.
  10. Partie du produit textile selon la revendication 9,
    caractérisée en ce qu'entre deux tronçons de fil (21, 22 ou 22, 23) voisins dotés d'une capacité (C1, C2, C3) par unité de longueur (l) différente il existe un tronçon de transition (24) dans lequel la capacité (Cl) par unité de longueur (l) varie de façon continue.
  11. Partie de produit textile selon l'une des revendications 6 à 10, caractérisée en ce que la valeur de la capacité (Cl) par unité de longueur (l) du fil capteur supplémentaire (10a) au moins unique varie d'au moins 0,03 pF et/ou d'au maximum 250 pF dans la direction d'extension (E).
  12. Partie de produit textile selon la revendication 11 et selon l'une des revendications 8 à 10,
    caractérisée en ce que le fil capteur supplémentaire (10a) au moins unique présente au moins trois tronçons de fil (21, 22, 23) dotés de capacités (Cl1, Cl2, Cl3) par unité de longueur (l), de valeurs différentes, la capacité (Cl) par unité de longueur (l) variant d'au moins 10 pF entre des tronçons de fil voisins (21, 22 ou 22, 23) dans la direction d'extension (E).
  13. Partie de produit textile selon l'une des revendications 6 à 12,
    caractérisé en ce que la variation de la capacité (Cl) par unité de longueur (l) du fil capteur supplémentaire (10a) au moins unique est provoquée par un nombre d'enroulements par unité de longueur du noyau de fil (11) qui varie dans la direction d'extension (E) et/ou par un pas (S) de l'enroulement hélicoïdal du premier conducteur (12) au moins unique et/ou du deuxième conducteur (13) au moins unique qui varie dans la direction d'extension (E).
  14. Partie de produit textile selon l'une des revendications 6 à 13, caractérisée en ce que la variation de la capacité (Cl) par unité de longueur (l) est provoquée par un indice diélectrique (ε) qui varie dans la direction d'extension (E) du fil capteur supplémentaire (10a) au minimum unique.
EP17172464.4A 2014-03-24 2015-03-20 Fil détecteur de lumière Active EP3301210B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102014103978.5A DE102014103978A1 (de) 2014-03-24 2014-03-24 Sensorgarn
EP15712110.4A EP3122923B1 (fr) 2014-03-24 2015-03-20 Pièce en matière textile à plusieurs filaments détecteur
PCT/EP2015/055985 WO2015144597A2 (fr) 2014-03-24 2015-03-20 Filament détecteur

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15712110.4A Division EP3122923B1 (fr) 2014-03-24 2015-03-20 Pièce en matière textile à plusieurs filaments détecteur
EP15712110.4A Division-Into EP3122923B1 (fr) 2014-03-24 2015-03-20 Pièce en matière textile à plusieurs filaments détecteur

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Publication Number Publication Date
EP3301210A2 EP3301210A2 (fr) 2018-04-04
EP3301210A3 EP3301210A3 (fr) 2018-05-30
EP3301210B1 true EP3301210B1 (fr) 2019-05-15

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EP17172464.4A Active EP3301210B1 (fr) 2014-03-24 2015-03-20 Fil détecteur de lumière

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EP (2) EP3122923B1 (fr)
JP (2) JP6592502B2 (fr)
KR (1) KR102314909B1 (fr)
CN (1) CN106661780B (fr)
DE (1) DE102014103978A1 (fr)
TR (2) TR201816444T4 (fr)
WO (1) WO2015144597A2 (fr)

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Publication number Publication date
DE102014103978A1 (de) 2015-09-24
EP3301210A3 (fr) 2018-05-30
JP2019203237A (ja) 2019-11-28
CN106661780B (zh) 2019-10-25
EP3122923B1 (fr) 2018-10-10
WO2015144597A2 (fr) 2015-10-01
WO2015144597A3 (fr) 2016-01-21
US10487423B2 (en) 2019-11-26
KR20160136402A (ko) 2016-11-29
JP6592502B2 (ja) 2019-10-16
CN106661780A (zh) 2017-05-10
JP2017510731A (ja) 2017-04-13
JP6723418B2 (ja) 2020-07-15
US20170107647A1 (en) 2017-04-20
TR201908701T4 (tr) 2019-07-22
KR102314909B1 (ko) 2021-10-21
EP3122923A2 (fr) 2017-02-01
TR201816444T4 (tr) 2018-11-21
EP3301210A2 (fr) 2018-04-04

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