Stress Loading Detection Method Using the FBG Sensor for Smart Textile
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- Koyama Shouhei
- Institute for Fiber Engineering, Shinshu University
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- Ishizawa Hiroaki
- Institute for Fiber Engineering, Shinshu University
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- Hosoya Satoshi
- Faculty of Textile Science and Technology, Shinshu University
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- Kawamura Takashi
- Faculty of Textile Science and Technology, Shinshu University
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- Chino Shun
- Graduate School of Science and Technology, Shinshu University
Abstract
<p>In this paper, we propose a physiological stress measurement method that uses a fiber Bragg grating (FBG) sensor. There are several points on the surface of the human body at which the pulse wave can be measured, and when an FBG sensor can be positioned at any of these points, to measure the pulse wave signal. When a person is under stress, their pulse rate increases and the peak interval in the measured pulse wave signal becomes shorter. This peak interval change can be measured using the FBG sensor and analyzed using a Poincaré plot; the stress load can then be detected based on the shift in the plot position. The points on the Poincaré plot shift toward the lower left direction because of the stress loading. Depending on the amount of applied stress, the length by which the plot shifts changes. When the proposed measurement method is used, it is possible to continuously monitor a subject for stress by simply installing the optical fiber at a pulsation point. When optical fibers are woven into textile products, it becomes possible to detect stress load by wearing a modified garment. Therefore, this measurement method can be applied as a wearable stress sensor in smart textiles.</p>
Journal
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- Journal of Fiber Science and Technology
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Journal of Fiber Science and Technology 73 (11), 276-283, 2017
The Society of Fiber Science and Technology, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205764079360
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- NII Article ID
- 130006224940
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- ISSN
- 21897654
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed