TY - JOUR
T1 - Modeling of light intensity-modulated fiber-optic displacement sensors
AU - Polygerinos, Panagiotis
AU - Seneviratne, Lakmal D.
AU - Althoefer, Kaspar
N1 - Funding Information:
Manuscript received June 15, 2010; revised July 30, 2010; accepted September 7, 2010. Date of publication November 1, 2010; date of current version March 8, 2011. This work was supported in part by the Alexander S. Onassis Public Benefit Foundation, which is based in Greece. The Associate Editor coordinating the review process for this paper was Dr. George Xiao.
PY - 2011/4
Y1 - 2011/4
N2 - Light-intensity-modulated displacement sensors are currently extensively used in numerous applications. Most such sensors operate by utilizing a pair of adjacent optical fibers and a reflector. This scheme can provide a good sensing outcome, but its performance can be enhanced with the use of only a single optical fiber. Such displacement sensors have the benefits of higher sensitivity and operating range, because they can efficiently collect more light after a reflectance has occurred. Hence, this paper investigates a single optical fiber that emits and collects light while translating and rotating with respect to the main axis of the optical fiber. The Gaussian light-sensing behavior of these two cases is mathematically modeled, giving sensing characteristics such as linearity and sensitivity. Experimental results are presented for verification and validation of the models.
AB - Light-intensity-modulated displacement sensors are currently extensively used in numerous applications. Most such sensors operate by utilizing a pair of adjacent optical fibers and a reflector. This scheme can provide a good sensing outcome, but its performance can be enhanced with the use of only a single optical fiber. Such displacement sensors have the benefits of higher sensitivity and operating range, because they can efficiently collect more light after a reflectance has occurred. Hence, this paper investigates a single optical fiber that emits and collects light while translating and rotating with respect to the main axis of the optical fiber. The Gaussian light-sensing behavior of these two cases is mathematically modeled, giving sensing characteristics such as linearity and sensitivity. Experimental results are presented for verification and validation of the models.
KW - Displacement sensor
KW - fiber-optic displacement sensor
KW - fiber-optic sensor
KW - intensity-modulated sensor
KW - reflective intensity modulation
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U2 - 10.1109/TIM.2010.2085270
DO - 10.1109/TIM.2010.2085270
M3 - Article
AN - SCOPUS:79952628275
SN - 0018-9456
VL - 60
SP - 1408
EP - 1415
JO - IEEE Transactions on Instrumentation and Measurement
JF - IEEE Transactions on Instrumentation and Measurement
IS - 4
M1 - 5613937
ER -