An Extrinsic Optical Fiber Bending Sensor: A Theoretical Investigation and Validation

Mohd Anwar Zawawi, Sinead O'Keeffe, Elfed Lewis

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the theoretical investigation and experimental validation of an extrinsic optical fiber bending sensor based on intensity modulation with automatic compensation. The proposed optical fiber bending sensor can measure continuous bending movement in flexion, extension, and lateral directions, simultaneously. The theoretical study is significant in choosing the most suitable parameter values for the sensor so that its sensitivity and working range are applicable for spine monitoring application. The fabricated bending sensor also shows a minimum signal fluctuation due to temperature effect.

Original languageEnglish
Article number7115050
Pages (from-to)5333-5339
Number of pages7
JournalIEEE Sensors Journal
Volume15
Issue number9
DOIs
Publication statusPublished - 1 Sep 2015

Keywords

  • Bending sensor
  • Human spine monitoring
  • Intensity modulation sensor

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