Document Detail

Two dimensional polymer-embedded quasi-distributed FBG pressure sensor for biomedical applications.
MedLine Citation:
PMID:  20173837     Owner:  NLM     Status:  MEDLINE    
We report on the development of a flexible 2D optical fiber-based pressure sensing surface suitable for biomedical applications. The sensor comprises of highly-sensitive Fiber Bragg Grating elements embedded in a thin polymer sheet to form a 2x2 cm(2) sensing pad with a minimal thickness of 2.5mm, while it is easily expandable in order to be used as a building block for larger surface sensors. The fabricated pad sensor was combined with a low physical dimension commercially available interrogation unit to enhance the portability features of the complete sensing system. Sensor mechanical properties allow for matching human skin behavior, while its operational performance exhibited a maximum fractional pressure sensitivity of 12 MPa(-1) with a spatial resolution of 1x1cm(2) and demonstrated no hysteresis and real time operation. These attractive operational and mechanical properties meet the requirements of various biomedical applications with respect to human skin pressure measurements, including amputee sockets, shoe sensors, wearable sensors, wheelchair seating-system sensors, hospital-bed monitoring sensors.
George T Kanellos; George Papaioannou; Dimitris Tsiokos; Christos Mitrogiannis; George Nianios; Nikos Pleros
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  18     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-02-22     Completed Date:  2010-05-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  179-86     Citation Subset:  IM    
Department of Informatics, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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MeSH Terms
Equipment Design
Equipment Failure Analysis
Optical Devices*
Polymers / chemistry*
Refractometry / instrumentation*
Reproducibility of Results
Sensitivity and Specificity
Transducers, Pressure*
Reg. No./Substance:

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