Title :
Peak strain detection in EFPI sensors via direct phase difference synthesis
Author :
Mitchell, Kyle ; Ebel, William J.
Author_Institution :
Dept. Electr. & Comput. Eng., St. Louis Univ., St. Louis, MO, USA
Abstract :
This paper presents a method for estimating peak strain using EFPI fiber-optic sensors. The method involves directly synthesizing the optical phase difference from the measured interference signal. Empirical results are presented which demonstrate that this method can measure peak strain to within about plusmn5 % of the strain measured with respect to a resistive strain gauge sensor.
Keywords :
Fabry-Perot interferometers; fibre optic sensors; strain gauges; EFPI sensors; direct phase difference synthesis; fiber-optic sensors; health monitoring; optical phase difference; peak strain detection; resistive strain gauge sensor; sinusoidal excitation; Capacitive sensors; Inspection; Instruments; Intelligent sensors; Monitoring; Neural networks; Optical fiber sensors; Phase detection; Sensor systems; Strain measurement; EFPI Sensor; Health Monitoring; fiber-optic strain gauge; sinusoidal excitation;
Conference_Titel :
Intelligent Transportation Systems, 2009. ITSC '09. 12th International IEEE Conference on
Conference_Location :
St. Louis, MO
Print_ISBN :
978-1-4244-5519-5
Electronic_ISBN :
978-1-4244-5520-1
DOI :
10.1109/ITSC.2009.5309831
