TY - JOUR
T1 - Physiological bending sensor based on tilt angle loss measurement using dual optical fibre
AU - Zawawi, M. A.
AU - O'Keeffe, S.
AU - Lewis, E.
N1 - Publisher Copyright:
© 2018, Exeley Inc.
PY - 2014/12/1
Y1 - 2014/12/1
N2 - This paper presents the development of an extrinsic optical fibre sensor for continuous measurement of the human spine bending movement based on intensity modulation technique. Using the investigated sensor configuration, the bending angle was measurable in both flexion and extension direction with a maximum range of motion of 18o and-10o, respectively. From the output drift assessment of the sensor, bending accuracy of up to 0.5° was achievable, thus making it suitable for clinical environment application. A divided-beam referencing technique was also implemented in the sensor configuration to compensate for the input power fluctuation and temperature variation.
AB - This paper presents the development of an extrinsic optical fibre sensor for continuous measurement of the human spine bending movement based on intensity modulation technique. Using the investigated sensor configuration, the bending angle was measurable in both flexion and extension direction with a maximum range of motion of 18o and-10o, respectively. From the output drift assessment of the sensor, bending accuracy of up to 0.5° was achievable, thus making it suitable for clinical environment application. A divided-beam referencing technique was also implemented in the sensor configuration to compensate for the input power fluctuation and temperature variation.
KW - Bending assessment
KW - Divided-beam referencing
KW - Intensity modulation
KW - Optical fibre sensor
UR - http://www.scopus.com/inward/record.url?scp=85083969128&partnerID=8YFLogxK
U2 - 10.21307/IJSSIS-2019-079
DO - 10.21307/IJSSIS-2019-079
M3 - Article
AN - SCOPUS:85083969128
SN - 1178-5608
VL - 7
SP - 1
EP - 4
JO - International Journal on Smart Sensing and Intelligent Systems
JF - International Journal on Smart Sensing and Intelligent Systems
IS - 5
ER -