All-fiber loading sensor based on 45° and 81° tilted fiber gratings

Zhongyuan Sun, Zhijun Yan, Chengbo Mou, Xiangchuan Wang, Jianfeng Li, Lin Zhang

Research output: Chapter in Book/Published conference outputConference publication


Cardiovascular health of the human population is a major concern for medical clinicians, with cardiovascular diseases responsible for 48% of all deaths worldwide, according to the World Health Organisation. Therefore the development of new practicable and economical diagnostic tools to scrutinise the cardiovascular health of humans is a major driver for clinicians. We offer a new technique to obtain seismocardiographic signals covering both ballistocardiography (below 20Hz) and audible heart sounds (20Hz upwards). The detection scheme is based upon an array of curvature/displacement sensors using fibre optic long period gratings interrogated using a variation of the derivative spectroscopy interrogation technique.

Original languageEnglish
Title of host publication23rd international conference on Optical Fibre Sensors
EditorsJosé Miguel López-Higuera, Julian Jones, Manuel López-Amo, José Luis Santos
Place of PublicationBellingham, WA (US)
Number of pages4
ISBN (Print)978-1-6284-1175-1
Publication statusPublished - 2 Jun 2014
Event23rd international conference on Optical Fibre Sensors - Santander, Spain
Duration: 2 Jun 20146 Jun 2014

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


Conference23rd international conference on Optical Fibre Sensors
Abbreviated titleOFS 23

Bibliographical note

Zhongyuan Sun ; Zhijun Yan ; Chengbo Mou ; Xiangchuan Wang ; Jianfeng Li and Lin Zhang, "All-fiber loading sensor based on 45° and 81° tilted fiber gratings ", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91577Q (June 2, 2014).

Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.



  • all fiber sensor system
  • loading sensor
  • optical fiber
  • tilted fiber grating


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