Yamaha Corporation

Shizuoka University

Hitachi Zosen Corporation

Yasuro Okumiya

Katsunori Suzuki

Koji Yataka

Yoku Inoue

Shingo Sakakibara

Tetsuya Inoue

Masahiro Sugiura

Yoshiki Terada

Norifumi Morihara

Tomoya Yamashita

Yusuke Sato

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.

Strain sensor unit

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.

Method for producing carbon nanotube web, method for producing carbon nanotube collected product, and apparatus for producing carbon nanotube web

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.

Strain sensor element

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.

Data glove

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.

Strain sensor

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.

Growing community of inventors

Hamamatsu, Japan

Yasuro Okumiya