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Title:
STRETCHABLE CAPACITOR, DEFORMATION SENSOR, DISPLACEMENT SENSOR, METHOD FOR SENSING RESPIRATION STATE, AND SENSING WEAR
Document Type and Number:
WIPO Patent Application WO/2018/056062
Kind Code:
A1
Abstract:
[Problem] To provide a stretchable capacitor that shows a 1:1 relationship between degree of stretching and capacitance and has high sensitivity and no hysteresis, and to apply the same to a respiration sensor or sensing wear. [Solution] Provided is a capacitor having a layered structure in which at least a stretchable conductor layer, a stretchable dielectric layer, and a stretchable conductor layer are stacked in that order, wherein the stretchable capacitor is obtained by using: the stretchable conductor layers that are a composition containing metal particles and that is characterized in that the specific resistance when not stretched is 3 × 10−3 Ωcm or less and the specific resistance when 100% stretched is no greater than 100 times the specific resistance when not stretched; and a stretchable dielectric layer with little inorganic constituents, preferably with a Poisson ratio of at least 0.28. The obtained stretchable capacitor can be attached to a belt, shirt, or the like and is capable of sensing respiration on the basis of changes in a sleeveless garment. Moreover, if the stretchable capacitor is placed in an indirect location or the like of clothing, the motion of the wearer can be read.

Inventors:
MORIMITO SHOTA (JP)
ISHIMARU SONOKO (JP)
KWON EUICHUL (JP)
Application Number:
PCT/JP2017/032247
Publication Date:
March 29, 2018
Filing Date:
September 07, 2017
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
H01G5/013; G01B7/16; G01D5/241
Foreign References:
JP2016153729A2016-08-25
JP2011501990A2011-01-20
JP2011002256A2011-01-06
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