WO2017204048A1 - Unité de capteur de déformation et kit de mesure de déformation - Google Patents

Unité de capteur de déformation et kit de mesure de déformation Download PDF

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Publication number
WO2017204048A1
WO2017204048A1 PCT/JP2017/018491 JP2017018491W WO2017204048A1 WO 2017204048 A1 WO2017204048 A1 WO 2017204048A1 JP 2017018491 W JP2017018491 W JP 2017018491W WO 2017204048 A1 WO2017204048 A1 WO 2017204048A1
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WO
WIPO (PCT)
Prior art keywords
strain sensor
sensor element
pressure
sensitive adhesive
sensor unit
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Application number
PCT/JP2017/018491
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English (en)
Japanese (ja)
Inventor
保郎 奥宮
鈴木　克典
谷高　幸司
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ヤマハ株式会社
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Application filed by ヤマハ株式会社 filed Critical ヤマハ株式会社
Publication of WO2017204048A1 publication Critical patent/WO2017204048A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers

Definitions

  • the present invention relates to a strain sensor unit and a strain measurement kit.
  • a strain sensor unit in which a thin film strain sensor element capable of detecting expansion and contraction in the longitudinal direction is attached to the surface of a base material such as a glove or a bandage (a surface not in contact with the human body)
  • a method for detecting the expansion and contraction of the skin accompanying bending and stretching of a joint or the like has been proposed (see Japanese Patent Application Laid-Open No. 2011-47702).
  • the strain sensor element used in the strain sensor unit described in the above publication uses a CNT film composed of a plurality of carbon nanotubes (hereinafter sometimes referred to as CNT) oriented in a predetermined direction. It is said that even a relatively large strain can be detected because it can be greatly expanded and contracted.
  • CNT carbon nanotubes
  • the strain sensor unit described in the above publication adheres the strain sensor element to a base material such as a glove or a bandage, if the base material cannot be expanded and contracted accurately according to the motion of the human body, Cannot be detected.
  • a base material such as a glove or an adhesive bandage may expand or contract differently from the measurement target portion directly below the strain sensor element due to movement other than the portion to which the strain sensor element is bonded. For this reason, the strain sensor unit described in the publication may have insufficient detection accuracy.
  • a measurement error may occur if the strain sensor element does not expand and contract evenly in the length direction. Since human skin and the like do not necessarily expand and contract evenly, measurement errors are likely to occur when a strain sensor unit using a bandage or the like is applied over the entire surface as described in the above publication.
  • an object of the present invention is to provide a strain sensor unit and a strain measurement kit that can relatively accurately measure the movement of a human body or the like.
  • a strain sensor unit according to the present invention which has been made to solve the above problems, is attached to a strain sensor element in the form of a thread or a strip and both ends in the longitudinal direction of the strain sensor element, and has an average width larger than that of the strain sensor element. And a pair of adhesive sheets having adhesiveness on at least one surface.
  • the strain sensor element may detect longitudinal expansion and contraction.
  • a pair of covering sheets stacked opposite to the pressure-sensitive adhesive sheet so as to cover opposite sides of the pressure-sensitive adhesive sheet at both ends of the strain sensor element may be further provided.
  • a pair of leads connected to both end portions of the strain sensor element may be further provided, and the leads may have an adhesive portion that is partially widened and has adhesiveness on at least one surface.
  • the pressure-sensitive adhesive sheet may have a base material layer and a pressure-sensitive adhesive layer laminated on one surface side of the base material layer.
  • the strain measurement kit according to the present invention made to solve the above problems is laminated on the strain sensor unit and the release sheet, and transferred to one surface side of the base material layer of the strain sensor unit. And a plurality of adhesive patches forming an adhesive layer.
  • taciness means a property that allows adhesion without solidifying.
  • the strain sensor unit and strain measurement kit according to the present invention can measure the movement of a human body or the like relatively accurately.
  • FIG. 2 is a schematic plan view of a strain sensor unit according to an embodiment different from FIG. 1 of the present invention.
  • FIG. 5 is a schematic cross-sectional view of the strain sensor unit in FIG. 4.
  • FIG. 5 is a schematic plan view of a strain sensor unit according to an embodiment different from FIGS. 1 and 4 according to the present invention. It is typical sectional drawing of the distortion sensor unit of FIG.
  • the strain sensor unit according to the first embodiment of the present invention shown in FIGS. 1 and 2 includes a strain sensor element 2 in the form of a thread or a strip (in the illustrated example, a strip) that detects expansion and contraction in the longitudinal direction, and the strain sensor element 2.
  • a strain sensor element 2 in the form of a thread or a strip (in the illustrated example, a strip) that detects expansion and contraction in the longitudinal direction, and the strain sensor element 2.
  • the strain sensor element 2 are attached to both ends in the longitudinal direction of one surface (a specific radial portion of the peripheral surface when the strain sensor element is thread-like), and has an average width larger than that of the strain sensor element 2 and is attached to at least one surface.
  • a pair of adhesive sheets 3 having adhesiveness.
  • one surface and “one surface side” mean “the surface on the measurement target side” and “the measurement target side” in the strain sensor unit, and the front and back of the measurement target are used as a reference. It is synonymous with “back side” and “back side” in the direction of
  • the strain sensor unit 1 has the adhesive sheet 3 on the surface of the measurement target part 2 attached by directly attaching the pair of adhesive sheets 3 to the surface (skin) of the measurement target part such as a joint of a human body. By measuring the change in length along the measurement target surface between points, it can be used to detect the movement of the measurement target part.
  • the strain sensor element 2 is not particularly limited as long as it has stretchability (elasticity) and its electrical characteristics change according to the expansion / contraction, but a strain resistance element whose electrical resistance changes due to the expansion / contraction is preferably used.
  • a CNT strain sensor using carbon nanotubes (CNT) is particularly preferably used as the strain sensor element 2.
  • the strain sensor unit 1 measures the resistance value between both ends of a strain sensor element 2 made of a strain resistance element by a detection circuit (not shown), thereby changing the surface of the measurement target part (which changes according to the movement of the measurement target part ( Detects an increase or decrease in the skin) length.
  • the CNT strain sensor can include, for example, a stretchable sheet-like support film, a CNT film laminated on the surface side of the support film, and a protective film that protects the CNT film.
  • the front and back of the layer structure of the CNT strain sensor is for convenience, and does not limit the order of stacking in the manufacturing process, the vertical relationship at the time of manufacturing, or the like, and the strain sensor element 2 in the strain sensor unit 1. It does not limit the orientation.
  • the lower limit of the average thickness of the support film and protective film of the CNT strain sensor is preferably 10 ⁇ m, more preferably 50 ⁇ m.
  • the upper limit of the average thickness of the support membrane is preferably 1 mm, more preferably 0.5 mm.
  • the material of the support film and the protective film is not particularly limited as long as it has flexibility, and examples thereof include synthetic resin, rubber, and nonwoven fabric.
  • the synthetic resin examples include phenol resin (PF), epoxy resin (EP), melamine resin (MF), urea resin (urea resin, UF), unsaturated polyester (UP), alkyd resin, polyurethane (PUR), heat Curable polyimide (PI), polyethylene (PE), high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE), polypropylene (PP), polyvinyl chloride (PVC), polyvinylidene chloride, polystyrene (PS), polyvinyl acetate (PVAc), acrylonitrile butadiene styrene resin (ABS), acrylonitrile styrene resin (AS), polymethyl methacrylate (PMMA), polyamide (PA), polyacetal (POM), polycarbonate (PC), modified Po Phenylene ether (m-PPE), polybutylene terephthalate (PBT), polyethylene terephthalate (PET), and cyclic polyolefin (COP) and
  • Examples of the rubber include natural rubber (NR), butyl rubber (IIR), isoprene rubber (IR), ethylene / propylene rubber (EPDM), butadiene rubber (BR), urethane rubber (U), and styrene / butadiene rubber (SBR). , Silicone rubber (Q), chloroprene rubber (CR), chlorosulfonated polyethylene rubber (CSM), acrylonitrile butadiene rubber (NBR), chlorinated polyethylene (CM), acrylic rubber (ACM), epichlorohydrin rubber (CO, ECO), Fluorine rubber (FKM), polydimethylsiloxane (PDMS), and the like can be given.
  • natural rubber is preferable from the viewpoint of strength.
  • This CNT film is formed of a resin composition containing a large number of CNT fibers.
  • the CNT film has a plurality of CNT fiber bundles composed of a plurality of CNT fibers oriented in one direction, and a resin layer covering the peripheral surface of the plurality of CNT fiber bundles.
  • a change occurs in the contact state between the CNT fibers, and a resistance change can be obtained as a strain sensor.
  • the CNT fibers in the CNT film are oriented in the stretching direction.
  • the lower limit of the average thickness of the CNT film under no load is preferably 1 ⁇ m and more preferably 10 ⁇ m.
  • the upper limit of the average thickness of the CNT film is preferably 1 mm, and more preferably 0.5 mm.
  • the CNT film may have a single layer structure in which CNT fibers are arranged substantially in parallel in a planar shape, or may have a multilayer structure. However, in order to ensure a certain degree of conductivity, a multilayer structure is preferable.
  • the CNT fiber either single-walled single-wall nanotubes (SWNT) or multi-walled multi-wall nanotubes (MWNT) can be used, but MWNT is preferable from the viewpoint of conductivity and heat capacity, and the diameter is 1.5 nm. More preferably, the MWNT is 100 nm or less.
  • SWNT single-walled single-wall nanotubes
  • MWNT multi-walled multi-wall nanotubes
  • the resin layer of the CNT film is a layer mainly composed of resin and covering the peripheral surface of a plurality of CNT fiber bundles.
  • the main component of the resin layer include the synthetic resins and rubbers exemplified as the material for the support film. Among these, rubber is preferable. By using rubber, a sufficient protection function of the CNT fiber can be exhibited even against a large strain.
  • the resin layer of the CNT film may be formed integrally with the support film or the protective film. In other words, the support film or the protective film may be omitted by increasing the thickness of the resin layer not impregnated in the CNT fiber layer.
  • the laminated structure of these resin layers and CNT films may be formed by applying a material that forms another layer (or film) to any one of the layers (or films). You may form by melt
  • the resin layer may have a multilayer structure including a plurality of different layers. In that case, it may be combined with a material having a high spring property. Specifically, it is preferable to use polyurethane as a material having a high spring property.
  • the lower limit of the average thickness of the resin layer is preferably 10 ⁇ m, more preferably 15 ⁇ m.
  • the upper limit of the average thickness of the resin layer is preferably 1 mm, and more preferably 0.5 mm. If the average thickness of the resin layer is less than the lower limit, the CNT film may not be sufficiently protected. On the contrary, when the average thickness of the resin layer exceeds the upper limit, the elastic modulus of the CNT film is increased, and there is a possibility that the deformation of the measurement target is hindered.
  • the average thickness of the resin layer may be different between the front and back of the CNT film.
  • the lower limit of the average width of the strain sensor element 2 formed by such a CNT strain sensor in an unloaded state is preferably 0.1 mm, and more preferably 0.5 mm.
  • the upper limit of the average width of the strain sensor element 2 is preferably 10 mm, and more preferably 5 mm.
  • the average length of the strain sensor element 2 in the no-load state is selected according to the measurement target part.
  • the lower limit of the average length of the strain sensor element 2 under no load is preferably 3 mm, and more preferably 15 mm.
  • the upper limit of the average length of the strain sensor element 2 under no load is preferably 70 mm, and more preferably 50 mm.
  • the strain sensor element 2 when the average length of the strain sensor element 2 exceeds the upper limit, the strain sensor element 2 includes a region whose length does not change depending on the detected motion, and the rate of change in the length of the strain sensor element 2 with respect to the motion becomes small. Therefore, the detection sensitivity may be insufficient.
  • the lower limit of the 10% elongation load of the strain sensor element 2 is preferably 0.01N, more preferably 0.03N, and even more preferably 0.05N.
  • the upper limit of the 10% elongation load of the strain sensor element 2 is preferably 0.5N, more preferably 0.3N, and even more preferably 0.2N.
  • the 10% elongation load of the strain sensor element 2 is less than the lower limit, the detection accuracy may be insufficient due to expansion and contraction due to factors other than the operation of the measurement target part.
  • the 10% elongation load of the strain sensor element 2 exceeds the upper limit, the reaction force at the time of elongation becomes large, and there is a possibility that the subject may feel uncomfortable or restrained.
  • the lower limit of the resistance value of the strain sensor element 2 under no load is preferably 10 ⁇ , for example, and more preferably 100 ⁇ .
  • the upper limit of the resistance value of the strain sensor element 2 under no load is preferably 100 k ⁇ and more preferably 10 k ⁇ .
  • the change rate of the resistance value due to the extension of the strain sensor element 2 is appropriately selected so that sufficient detection accuracy can be obtained.
  • the ratio of the resistance values is, for example, 1.5 times or more and 20 times or less.
  • the pair of pressure-sensitive adhesive sheets 3 are adhered to both ends of the strain sensor element 2 and are attached to the surface of the detection target site by the adhesiveness of the back surface. Thereby, the pair of pressure-sensitive adhesive sheets 3 expands and contracts the strain sensor element 2 according to the movement of the detection target part.
  • the pressure-sensitive adhesive sheet 3 may be formed from a single resin composition having sufficient tackiness, but typically, the base material layer 4 bonded to the back surface of the strain sensor element 2 and the base material layer 4 and the pressure-sensitive adhesive layer 5 laminated on the back surface side.
  • the planar shape of the pressure-sensitive adhesive sheet 3 is not particularly limited, and may be any shape such as a circle, a rectangle, a polygon, etc., but a circle without corners is preferable in consideration of being attached to a human body. Adopted.
  • the planar dimension of the pressure-sensitive adhesive sheet 3 varies depending on the material, the size of the strain sensor element 2, and the like, but the average width of the pressure-sensitive adhesive sheet 3 (the average length in the width direction of the strain sensor element 2) is the average of the strain sensor elements 2. As a minimum of ratio to width, 1.5 is preferred and 2 is more preferred. On the other hand, the upper limit of the ratio of the average width of the pressure-sensitive adhesive sheet 3 to the average width of the strain sensor element 2 is preferably 30, and more preferably 20. When the ratio of the average width of the pressure-sensitive adhesive sheet 3 to the average width of the strain sensor element 2 is less than the lower limit, the adhesive force to the measurement object may be insufficient.
  • the “average width” of the pressure-sensitive adhesive sheet 3 means a value obtained by dividing the area of the pressure-sensitive adhesive sheet 3 by the maximum length in the direction perpendicular to the width direction.
  • the lower limit of the average length in the width direction of the strain sensor element 2 of the adhesive sheet 3 is preferably 1 mm, and more preferably 2 mm.
  • the upper limit of the average length in the width direction of the strain sensor element 2 of the pressure-sensitive adhesive sheet 3 is preferably 30 mm, and more preferably 20 mm.
  • the lower limit of the ratio of the average length of the pressure-sensitive adhesive sheet 3 (the average length in the length direction of the strain sensor element 2) to the average width of the strain sensor element 2 is preferably 1.5 and more preferably 2.
  • the upper limit of the ratio of the average length of the pressure-sensitive adhesive sheet 3 to the average width of the strain sensor element 2 is preferably 50 and more preferably 30.
  • the “average length” of the pressure-sensitive adhesive sheet 3 is a value obtained by dividing the area of the pressure-sensitive adhesive sheet 3 by the maximum width.
  • the lower limit of the average length in the length direction of the strain sensor element 2 of the adhesive sheet 3 is preferably 2 mm, and more preferably 3 mm.
  • the upper limit of the average length in the length direction of the strain sensor element 2 of the adhesive sheet 3 is preferably 50 mm, and more preferably 30 mm.
  • the thickness of the pressure-sensitive adhesive sheet 3 varies depending on the material, the size of the strain sensor element 2 and the like, the lower limit of the average thickness of the pressure-sensitive adhesive sheet 3 is preferably 50 ⁇ m, more preferably 100 ⁇ m.
  • the upper limit of the average thickness of the pressure-sensitive adhesive sheet 3 is preferably 5 mm, and more preferably 3 mm. When the average thickness of the pressure sensitive adhesive sheet 3 is less than the lower limit, the strength of the pressure sensitive adhesive sheet 3 may be insufficient. On the other hand, when the average thickness of the pressure-sensitive adhesive sheet 3 exceeds the upper limit, there is a possibility that the subject may feel uncomfortable.
  • Base material layer As the base material layer 4, for example, a resin sheet, a woven fabric, a nonwoven fabric, a knitted fabric, a metal foil, or the like can be used. Among them, a sheet containing a woven fabric, that is, a sheet in which a woven fabric or a woven fabric is impregnated with a resin is preferable. Used for. Since the pressure-sensitive adhesive sheet 3 includes a woven fabric, the strength of the pressure-sensitive adhesive sheet 3 is increased, so that both ends of the strain sensor element 2 can be reliably fixed to the surface of the measurement target.
  • the woven fabric included in the base material layer 4 for example, polyethylene cloth, aramid cloth, glass cloth, or the like can be used.
  • the lower limit of the average thickness of the base material layer 4 is preferably 20 ⁇ m, and more preferably 50 ⁇ m.
  • an upper limit of the average thickness of the base material layer 4 1 mm is preferable and 0.5 mm is more preferable.
  • the average thickness of the base material layer 4 is less than the lower limit, the strength of the base material layer 4 may be insufficient.
  • the average thickness of the base material layer 4 exceeds the upper limit, the thickness of the pressure-sensitive adhesive sheet 3 may become unnecessarily large, which may give a sense of discomfort to the subject.
  • Adhesive layer As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 5, it is preferable to use, for example, an acrylic-based pressure-sensitive adhesive material that does not easily cause skin irritation even if it is directly applied to human skin.
  • the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 5 may be impregnated in the base material layer 4.
  • the lower limit of the average thickness of the pressure-sensitive adhesive layer 5 is preferably 30 ⁇ m, and more preferably 50 ⁇ m.
  • the upper limit of the average thickness of the pressure-sensitive adhesive layer 5 is preferably 3 mm, and more preferably 1 mm.
  • the average thickness of the pressure-sensitive adhesive layer 5 is less than the lower limit, there is a possibility that sufficient adhesive force cannot be obtained.
  • the average thickness of the pressure-sensitive adhesive layer 5 exceeds the upper limit, the thickness of the pressure-sensitive adhesive sheet 3 may become unnecessarily large, which may give the subject a sense of discomfort.
  • the adhesion of the pressure-sensitive adhesive sheet 3 to the strain sensor element 2 can be performed by thermocompression bonding or the like, but it is preferable to use an adhesive. By bonding the pressure-sensitive adhesive sheet 3 to the strain sensor element 2 with an adhesive, the strain sensor unit 1 can be manufactured relatively easily.
  • the pressure-sensitive adhesive that bonds the pressure-sensitive adhesive sheet 3 to the strain sensor element 2 include a rubber-based pressure-sensitive adhesive, a silicone-based pressure-sensitive adhesive, and an acrylic pressure-sensitive adhesive.
  • a commercially available pressure-sensitive adhesive tape is used as a laminate of the base material layer 4 and the adhesive that bonds the base material layer 4 to the strain sensor element 2. be able to.
  • a commercially available adhesive tape the manufacture of the strain sensor unit 1 is further facilitated, and the strain sensor unit 1 can be manufactured at a lower cost.
  • the strain sensor unit 1 includes a pair of pressure-sensitive adhesive sheets 3 stacked on both ends of one surface of the strain sensor element 2, so that both ends of the strain sensor element 2 are measured by the pair of pressure-sensitive adhesive sheets 3. It can be fixed on the surface of the object. For this reason, since the strain sensor unit 1 can expand and contract relatively uniformly even if the surface of the measurement target portion in contact with the strain sensor element 2 expands and contracts unevenly or forms wrinkles, The movement of the measurement target part can be measured relatively accurately.
  • FIG. 3 shows a distortion measurement kit according to another embodiment of the present invention.
  • the strain measurement kit is a pressure-sensitive adhesive layer that is laminated on the strain sensor unit 1 of FIG. 1, a release sheet 6, and the release sheet 6, and is transferred to the back side of the base material layer 4 of the strain sensor unit 1. And a plurality of adhesive patches 7 that can form 5.
  • the strain measurement kit replaces the pressure-sensitive adhesive layer 5 of the strain sensor unit 1 with the pressure-sensitive adhesive patch 7, or overlaps the pressure-sensitive adhesive patch 7 on the pressure-sensitive adhesive layer 5 of the strain sensor unit 1.
  • the pressure-sensitive adhesive force of the pressure-sensitive adhesive sheet 3 can be recovered like a new product.
  • the distortion measurement kit includes a plurality of adhesive patches 7, the used adhesive layer 5 is replaced with a new adhesive patch 7 or the new adhesive patch 7 is replaced with the back side of the used adhesive layer 5 (one side
  • the strain sensor unit 1 can be reused relatively easily. For this reason, it is possible to measure the movement of various parts of the human body using the distortion measurement kit, or to measure the movement of the same part repeatedly at intervals, for example, once a day.
  • the strain sensor unit 1a according to the second embodiment of the present invention shown in FIGS. 4 and 5 includes a thread-like or belt-like strain sensor element 2 that detects expansion and contraction in the longitudinal direction, and the back side of both ends of the strain sensor element 2.
  • the lead 9 is provided.
  • the configurations of the strain sensor element 2 and the adhesive sheet 3 in the strain sensor unit of FIGS. 4 and 5 can be the same as the configurations of the strain sensor element 2 and the adhesive sheet 3 in the strain sensor unit of FIGS. For this reason, in the strain sensor unit of FIGS. 4 and 5, the same components as those of the strain sensor unit of FIGS.
  • the cover sheet 8 is laminated on the surface side of the end portion of the strain sensor element 2 and the end portion of the lead 9, and the outer region protruding in the width direction from the strain sensor element 2 and the lead 9 in a plan view is bonded to the adhesive sheet 3.
  • the Accordingly, the strain sensor element 2 and the lead 9 can be sandwiched between the adhesive sheet 3 and can be sandwiched relatively firmly.
  • the shape, material, etc. of the covering sheet 8 can be the same as the shape, material, etc. of the base material layer 4 of the pressure-sensitive adhesive sheet 3.
  • the method for adhering the cover sheet 8 to the strain sensor element 2 can be the same as the method for adhering the adhesive sheet 3 to the strain sensor element 2.
  • the lead 9 is used as wiring for connecting both ends of the strain sensor element 2 to an external detection circuit.
  • an insulated wire, a flexible circuit board, a flat cable or the like can be used as the lead 9, for example, an insulated wire, a flexible circuit board, a flat cable or the like.
  • the lead 9 is partially widened and has an adhesive portion 10 having adhesiveness at least on the back surface.
  • the adhesion part 10 is set as the structure which has adhesiveness at least on the back surface, for example, can be set as the structure by which the adhesive patch 7 of the distortion measurement kit of FIG. 3 is affixed. Thereby, the adhesion part 10 can be adhere
  • the adhesive portion 10 may be formed by partially cutting the flexible printed circuit board into a wide part.
  • the lead 9 may be formed of another member such as a sheet similar to the adhesive sheet 3. May be formed by bonding.
  • the strain sensor unit 1 a includes a pair of covering sheets 8 that are stacked to face the pair of adhesive sheets 3, so that the adhesive sheet 3 can be relatively easily and reliably fixed to both ends of the strain sensor element 2. Therefore, manufacturing is relatively easy.
  • the strain sensor unit 1a includes a pair of leads 9 that are connected in advance to both ends of the strain sensor element 2, so that the strain sensor element 2 can be relatively easily connected to the detection circuit.
  • the adhesive portion 10 is moved to the strain sensor element 2 side by the tension of the strain sensor element 2 through the lead 9. To prevent. For this reason, the distortion sensor unit 1a is more reliably attached to the measurement target.
  • the strain sensor unit 1b according to the third embodiment of the present invention shown in FIGS. 6 and 7 includes a thread-like or belt-like strain sensor element 2 that detects expansion and contraction in the longitudinal direction, and both end portions and a central portion of the strain sensor element 2.
  • a plurality of pressure-sensitive adhesive sheets 3 having an average width larger than that of the strain sensor element 2 and having adhesiveness at least on the back surface, and surfaces of both end portions and the central portion of the strain sensor element 2.
  • the configurations of the strain sensor element 2 and the adhesive sheet 3 in the strain sensor unit of FIGS. 6 and 7 can be the same as the configurations of the strain sensor element 2 and the adhesive sheet 3 in the strain sensor unit of FIGS. Therefore, in the strain sensor unit of FIGS. 6 and 7, the same components as those of the strain sensor unit of FIGS.
  • the covering sheet 8b is laminated on the surface side of the strain sensor element 2 so as to overlap the adhesive sheet 3 in plan view.
  • the covering sheet 8b has conductivity and is electrically connected to the strain sensor element 2, thereby being used as a terminal for connecting a wiring to the measurement circuit to the strain sensor element 2. For this reason, for example, a conductive adhesive or the like is used for bonding the covering sheet 8b to the strain sensor element 2.
  • the covering sheet 8b for example, in addition to a sheet-like member such as a metal foil, a metal mesh, or a carbon cloth, a sheet having a sheet-like portion facing the covering sheet 8b and a structural portion for electrical connection is used. it can.
  • a sheet-like member such as a metal foil, a metal mesh, or a carbon cloth
  • the male member of a snap button etc. can be mentioned, for example.
  • the female member of the snap button is disposed at the tip of the wiring of the detection circuit, so that the strain sensor element 2 can be easily wired to the measurement circuit.
  • the strain sensor unit 1b functions as a strain sensor in which the pressure-sensitive adhesive sheets 3 are independent by having the pressure-sensitive adhesive sheet 3 at the center of the strain sensor element 2 as well. That is, the strain sensor unit 1b can measure the movement of two consecutive sections of the measurement target part.
  • the adhesive sheet may be formed only from the adhesive layer.
  • the strain sensor element may be formed so that a portion where the adhesive sheet is laminated widens in a shape corresponding to the adhesive sheet.
  • An adhesive may be laminated between the adhesive sheets on the back surface of the strain sensor element.
  • the lead of the strain sensor unit may not have an adhesive part.
  • the present invention can be widely used to detect the movement of a human body or the like.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Adhesive Tapes (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention aborde le problème de fourniture d'une unité de capteur de déformation qui peut mesurer avec une précision relative le mouvement du corps humain et similaire. Cette unité de capteur de déformation est pourvue des éléments suivants : un élément de capteur de déformation sous forme de fil ou de bande ; et une paire de feuilles adhésives qui sont fixées aux deux extrémités longitudinales de l'élément de capteur de déformation, qui ont une largeur moyenne plus élevée que l'élément de capteur de déformation, et dont au moins un côté est adhésif.
PCT/JP2017/018491 2016-05-23 2017-05-17 Unité de capteur de déformation et kit de mesure de déformation WO2017204048A1 (fr)

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JP2016102879A JP6821949B2 (ja) 2016-05-23 2016-05-23 歪みセンサユニット
JP2016-102879 2016-05-23

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WO2017204048A1 true WO2017204048A1 (fr) 2017-11-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020155605A (ja) * 2019-03-20 2020-09-24 大日本印刷株式会社 配線基板及び配線基板の製造方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021056315A (ja) * 2019-09-27 2021-04-08 ヤマハ株式会社 鍵盤装置

Citations (4)

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JP2011032449A (ja) * 2009-07-29 2011-02-17 Dengiken:Kk 粘着テープ及びそれを用いた太陽電池モジュール
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JP2020155605A (ja) * 2019-03-20 2020-09-24 大日本印刷株式会社 配線基板及び配線基板の製造方法
JP7389958B2 (ja) 2019-03-20 2023-12-01 大日本印刷株式会社 配線基板及び配線基板の製造方法

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