Fiber-optic polarimetric strain sensor with three-wavelength digital phase demodulation

2000 ◽  
Vol 25 (18) ◽  
pp. 1334 ◽  
Author(s):  
Markus Schmidt ◽  
Norbert Fürstenau ◽  
Wojtek Bock ◽  
Waclaw Urbanczyk
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Digital Phase ◽  
Phase Demodulation

scholarly journals Fiber-optic extrinsic Fabry-Perot interferometer strain sensor with <50 pm displacement resolution using three-wavelength digital phase demodulation

2001 ◽  
Vol 8 (8) ◽  
pp. 475 ◽  
Author(s):  
Markus Schmidt ◽  
Bernd Werther ◽  
Norbert Fuerstenau ◽  
Michael Matthias ◽  
Tobias Melz
Keyword(s):  
Fiber Optic ◽  
Strain Sensor ◽  
Digital Phase ◽  
Fabry Perot ◽  
Phase Demodulation

scholarly journals Digital phase demodulation for low-coherence interferometry-based fiber-optic sensors

2018 ◽  
Vol 411 ◽  
pp. 27-32 ◽  
Author(s):  
Y. Liu ◽  
R. Strum ◽  
D. Stiles ◽  
C. Long ◽  
A. Rakhman ◽  
...  
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensors ◽  
Low Coherence ◽  
Digital Phase ◽  
Low Coherence Interferometry ◽  
Phase Demodulation

scholarly journals Wind Turbine Blade Monitoring with Brillouin-Based Fiber-Optic Sensors

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Agnese Coscetta ◽  
Aldo Minardo ◽  
Lucio Olivares ◽  
Maurizio Mirabile ◽  
Mario Longo ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Fiber Optic ◽  
Strain Sensor ◽  
Experimental Tests ◽  
Fiber Optic Sensors ◽  
Composite Blade ◽  
Operation Stability ◽  
Distributed Strain ◽  
Strain Detection

Wind turbine (WT) blade is one of the most important components in WTs, as it is the key component for receiving wind energy and has direct influence on WT operation stability. As the size of modern turbine blade increases, condition monitoring and maintenance of blades become more important. Strain detection is one of the most effective methods to monitor blade conditions. In this paper, a distributed fiber-optic strain sensor is used for blade monitoring. Preliminary experimental tests have been carried out over a 14 m long WT composite blade, demonstrating the possibility of performing distributed strain and vibration measurements.

Rotationally insensitive circular-core two-mode fiber-optic strain sensor

2010 ◽  
Vol 49 (11) ◽  
pp. 2183 ◽  
Author(s):  
Sachin N. Dekate ◽  
Barry Grossman
Keyword(s):  
Fiber Optic ◽  
Strain Sensor
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