Title
An MR-compatible force sensor based on FBG technology for biomedical application.
Abstract
Fiber Bragg Grating (FBG) technology is very attractive to develop sensors for the measurement of thermal and mechanical parameters in biological applications, particularly in presence of electromagnetic interferences. This work presents the design, working principle and experimental characterization of a force sensor based on two FBGs, with the feature of being compatible with Magnetic Resonance. Two prototypes based on different designs are considered and characterized: 1) the fiber with the FBGs is encapsulated in a polydimethylsiloxane (PDMS) sheet; 2) the fiber with the FBGs is free without the employment of any polymeric layer. Results show that the prototype which adopts the polymeric sheet has a wider range of measurement (4200 mN vs 250 mN) and good linearity; although it has lower sensitivity (≈0.1 nm-N(1) vs 7 nm-N(1)). The sensor without polymeric layer is also characterized by employing a differential configuration which allows neglecting the influence of temperature. This solution improves the linearity of the sensor, on the other hand the sensitivity decreases. The resulting good metrological properties of the prototypes here tested make them attractive for the intended application and in general for force measurement during biomedical applications in presence of electromagnetic interferences.
Year
DOI
Venue
2014
10.1109/EMBC.2014.6944929
EMBC
Keywords
DocType
Volume
polymeric sheet,force sensors,biomedical application,force measurement,biomedical optical imaging,mr-compatible force sensor,biomedical mri,fiber bragg grating technology,metrological property,magnetic resonance,electromagnetic interferences,fbg technology,pdms sheet,polydimethylsiloxane,bragg gratings
Conference
2014
ISSN
Citations 
PageRank 
1557-170X
0
0.34
References 
Authors
4
10
Name
Order
Citations
PageRank
Paola Saccomandi18930.36
Michele Arturo Caponero22710.83
A Polimadei312.51
M Francomano400.34
Domenico Formica58826.60
Dino Accoto610023.61
E Tamilia7154.66
Fabrizio Taffoni85813.31
Giovanni Di Pino9257.95
Emiliano Schena1010643.86