Abstract: A biometric sensor 1 according to one aspect of the present disclosure includes: a fixed member 20 having a frame 21 which is ring-shaped; and a first strain sensor element 31 and a second strain sensor element 32, each of the first strain sensor element and the second strain sensor element being string-shaped or strip-shaped, and the first strain sensor element and the second strain sensor element being stretchable and recoverable in a lengthwise direction of the first strain sensor element and a lengthwise direction of the second strain sensor element, wherein the first strain sensor element 31 and the second strain sensor element 32 extend across the frame 21 and are disposed such that the first strain sensor element 31 and the second strain sensor element 32 cross each other, and wherein the frame 21 is configured to be deformable at least in the lengthwise direction of the first strain sensor element 31 and the lengthwise direction of the second strain sensor element 32.

Abstract: A strain sensor unit includes a filamentous or strip-shaped strain sensor element configured to stretch in a longitudinal direction, and an extension regulator coupled to the strain sensor element and configured to set an initial value of an amount of extension of the strain sensor element.

Abstract: Provided is a strain sensor unit that enables inhibition of a positional deviation of a strain sensor. The strain sensor unit includes: a substrate that is stretchable; at least one strip-shaped or string-shaped strain sensor that is arranged on the substrate along a direction of stretching and contracting of the substrate; and a deformation restraining member that is arranged in proximity to longitudinal end portions of the at least one strain sensor respectively, to extend in a direction intersecting a longitudinal direction of the strain sensor, and restrains deformation of the substrate.

Abstract: The method for producing a carbon nanotube web includes preparing a carbon nanotube array disposed on a substrate, the carbon nanotube array including a plurality of carbon nanotubes vertically aligned relative to the substrate; and drawing a carbon nanotube web from the carbon nanotube array so that the plurality of carbon nanotube single yarns are arranged in parallel, wherein in the step of drawing a carbon nanotube web, the carbon nanotube web is oscillated in a direction crossing both the thickness direction of the substrate and the drawing direction of the carbon nanotube web.

Abstract: Provided is a filamentous strain sensor element capable of detecting a relatively great tensile strain. The strain sensor element of which resistance value changes in response to stretch and to contraction in a longitudinal direction, includes: a first conductive portion that is filamentous and formed from a carbon nanotube bundle; and a second conductive portion that covers a peripheral surface of the first conductive portion and is elastic and conductive, in which the first conductive portion is discontinuous at one or a plurality of positions.

Abstract: Provided is a data glove which imparts little discomfort when worn, and is capable of accurately detecting movement of a hand. The data glove includes a glove main body and a plurality of strain sensors which are disposed on the dorsal side of the glove main body in regions corresponding to at least one finger, and which detect stretch and contraction of the glove main body. The strain sensors preferably include two strain sensors which are disposed on the dorsal side of the glove main body to correspond respectively to a proximal interphalangeal joint and a metacarpophalangeal joint of at least one finger of the second through fifth fingers, and which detect stretch and contraction of the glove main body in a proximal-distal direction. The data glove preferably further includes a plurality of stretch prevention parts which limit the elongation of the glove main body.

Abstract: The method for producing a carbon nanotube web includes preparing a carbon nanotube array disposed on a substrate, the carbon nanotube array including a plurality of carbon nanotubes vertically aligned relative to the substrate; and drawing a carbon nanotube web from the carbon nanotube array so that the plurality of carbon nanotube single yarns are arranged in parallel, wherein in the step of drawing a carbon nanotube web, the carbon nanotube web is oscillated in a direction crossing both the thickness direction of the substrate and the drawing direction of the carbon nanotube web.

Abstract: Provided is a strain sensor unit that enables inhibition of a positional deviation of a strain sensor. The strain sensor unit includes: a substrate that is stretchable; at least one strip-shaped or string-shaped strain sensor that is arranged on the substrate along a direction of stretching and contracting of the substrate; and a deformation restraining member that is arranged in proximity to longitudinal end portions of the at least one strain sensor respectively, to extend in a direction intersecting a longitudinal direction of the strain sensor, and restrains deformation of the substrate.

Abstract: Provided is a filamentous strain sensor element capable of detecting a relatively great tensile strain. The strain sensor element of which resistance value changes in response to stretch and to contraction in a longitudinal direction, includes: a first conductive portion that is filamentous and formed from a carbon nanotube bundle; and a second conductive portion that covers a peripheral surface of the first conductive portion and is elastic and conductive, in which the first conductive portion is discontinuous at one or a plurality of positions.

Abstract: An anisotropic conductive sheet, in which the arrangement interval of the structure that exhibits conductivity in a planar section is relatively small, comprises an elastic layer having resin as the main component, and a plurality of CNT pillars that are formed from CNT fiber bundles and penetrate the elastic layer in the thickness direction. The electrical inspection head measures electrical characteristics between a plurality of measurement points of a measurement target, and comprises a measurement substrate having a plurality of electrode pads on its surface that opposes the measurement points, and an anisotropic conductive sheet laminated on that surface. The method for manufacturing an anisotropic conductive sheet comprises growing a plurality of CNT pillars formed from CNT fiber bundles by chemical vapor deposition by arranging catalysts on the surface of a growth substrate, and filling the space between the plurality of CNT pillars with a resin composition.

Abstract: Provided is a data glove which imparts little discomfort when worn, and is capable of accurately detecting movement of a hand, comprising: a glove main body; and a plurality of strain sensors which are disposed on the dorsal side of the glove main body in regions corresponding to at least one finger, and which detect stretch and contraction of the glove main body. The strain sensors preferably include a first strain sensor and a second strain sensor which are disposed on the dorsal side of the glove main body to correspond respectively to a proximal interphalangeal joint and a metacarpophalangeal joint of at least one finger of the second through fifth fingers, and which detect stretch and contraction of the glove main body in a proximal-distal direction. The data glove preferably further comprises a plurality of stretch prevention parts which limit the elongation of the glove main body.

Abstract: A strain sensor provided with a substrate that has flexibility; a carbon nanotube (CNT) film that is provided on the surface of the substrate and that has a plurality of CNT fibers oriented in one direction; and a pair of electrodes that are arranged at both ends in the orientation direction of the CNT fibers in the CNT film; in which the CNT film has a plurality of CNT fiber bundles that consist of the plurality of CNT fibers, and a resin layer that covers the peripheral surface of the plurality of the CNT fiber bundles and joins with the surface of the substrate.

Abstract: A strain sensor includes a flexible substrate, a CNT film made of a plurality of CNT fibers aligned in an orientation direction, a pair of electrodes, and a protective coat. The electrodes are formed at the opposite ends of the CNT film in a perpendicular direction to the orientation direction of the CNT fibers. The protective coat protecting the CNT film is made of a resin, a water-based emulsion, or an oil-based emulsion. The protective coat is placed in contact with at least part of the CTN fibers on the surface of the CNT film. The strain sensor including the protective coat is able to prevent damage/breakage of the CNT film and to prevent foreign matters from entering into gaps between CNT fibers, thus improving durability in maintaining adequate sensing functionality.

Abstract: A strain sensor includes a flexible substrate, a CNT film made of a plurality of CNT fibers aligned in an orientation direction, a pair of electrodes, and a protective coat. The electrodes are formed at the opposite ends of the CNT film in a perpendicular direction to the orientation direction of the CNT fibers. The protective coat protecting the CNT film is made of a resin, a water-based emulsion, or an oil-based emulsion. The protective coat is placed in contact with at least part of the CTN fibers on the surface of the CNT film. The strain sensor including the protective coat is able to prevent damage/breakage of the CNT film and to prevent foreign matters from entering into gaps between CNT fibers, thus improving durability in maintaining adequate sensing functionality.

Abstract: A strain sensor provided with a substrate that has flexibility; a carbon nanotube (CNT) film that is provided on the surface of the substrate and that has a plurality of CNT fibers oriented in one direction; and a pair of electrodes that are arranged at both ends in the orientation direction of the CNT fibers in the CNT film; in which the CNT film has a plurality of CNT fiber bundles that consist of the plurality of CNT fibers, and a resin layer that covers the peripheral surface of the plurality of the CNT fiber bundles and joins with the surface of the substrate.