TY - GEN
T1 - Fiber-optic extrinsic FPI/FBG sensor for temperature-compensated pressure measurement in medical applications
AU - Poeggel, S.
AU - Tosi, D.
AU - Leena, G.
AU - Lewis, E.
PY - 2013
Y1 - 2013
N2 - A combined optical fiber pressure/temperature sensing system based on low-finesse extrinsic Fabry-Perot interferometer (EFPI) in conjunction with a fiber Bragg grating (FBG) for biomedical measurement applications is presented. The sensing probe has 200 μm outer diameter, and is biocompatible, meeting the requirements for the most demanding biomedical applications. High accuracy (<1mmHg) is achieved by means of fiber polishing and diaphragm etching in hydrofluoric acid, and optimizing the sensitivity to >1nm/kPa. A white light interrogation system based on spectrometric analysis has been developed which implements several pressure detection algorithms. A measurement campaign has been carried out to validate the proposed system, showing 1mmHg accuracy, air-gap compression linearity, and temperature compensation.
AB - A combined optical fiber pressure/temperature sensing system based on low-finesse extrinsic Fabry-Perot interferometer (EFPI) in conjunction with a fiber Bragg grating (FBG) for biomedical measurement applications is presented. The sensing probe has 200 μm outer diameter, and is biocompatible, meeting the requirements for the most demanding biomedical applications. High accuracy (<1mmHg) is achieved by means of fiber polishing and diaphragm etching in hydrofluoric acid, and optimizing the sensitivity to >1nm/kPa. A white light interrogation system based on spectrometric analysis has been developed which implements several pressure detection algorithms. A measurement campaign has been carried out to validate the proposed system, showing 1mmHg accuracy, air-gap compression linearity, and temperature compensation.
KW - Fabry-Perot interferometer (FPI)
KW - FBG sensor
KW - Fiber Bragg grating (FBG)
KW - Fiber optic pressure sensor (FOPS)
KW - FPI sensor
KW - Medical sensor
KW - Optical fiber sensor
UR - http://www.scopus.com/inward/record.url?scp=84884311015&partnerID=8YFLogxK
U2 - 10.1117/12.2025483
DO - 10.1117/12.2025483
M3 - Conference contribution
AN - SCOPUS:84884311015
SN - 9780819496348
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Fifth European Workshop on Optical Fibre Sensors
T2 - 5th European Workshop on Optical Fibre Sensors, EWOFS 2013
Y2 - 19 May 2013 through 22 May 2013
ER -