Measurement of weak low frequency pressure signal using stretchable polyurethane fiber sensor for application in wearables

Md Rejvi Kaysir, Alessio Stefani, Richard Lwin, Simon Fleming

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Abstract

The practical realization of low Young's modulus Polyurethane (PU) based optical fibers offers new possibilities for sensing on bodies due to its bio-compatibility and high material sensitivity. Here, we experimentally demonstrate a PU fiber pressure sensor using the simplest possible structure (i.e. a capillary) to measure a weak low frequency signal comparable to respiration/heart rate. We characterized the fiber and measured the sensitivity of a PU capillary using a speaker connected to a function generator. The frequency of the modulated signal was recovered using Fourier Transform (FT). This bodes well for applying more sophisticated structures to wearable devices.
Original languageEnglish
Title of host publicationProceedings of 2017 3rd International Conference on Electrical Information and Communication Technology
Number of pages5
PublisherIEEE
Publication date2017
ISBN (Print)978-1-5386-2307-7
DOIs
Publication statusPublished - 2017
Event2017 3rd International Conference on Electrical Information and Communication Technology - Khulna University of Engineering & Technology , Khulna, Bangladesh
Duration: 7 Dec 20179 Dec 2017
http://www.kuet.ac.bd/eict2017/

Conference

Conference2017 3rd International Conference on Electrical Information and Communication Technology
LocationKhulna University of Engineering & Technology
Country/TerritoryBangladesh
CityKhulna
Period07/12/201709/12/2017
Internet address
Series2017 3rd International Conference on Electrical Information and Communication Technology (eict 2017)

Keywords

  • Polyurethane
  • Fiber optic sensors
  • Fiber drawing and fabrication
  • Stretchable waveguide
  • Biomedical signal

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