A calibration method based on look-up-table for cryogenic temperature fiber Bragg grating sensors

2012 ◽  
Author(s):  
Andrea Saccomanno ◽  
Giovanni Breglio ◽  
Andrea Irace ◽  
Marta Bajko ◽  
Zoltan Szillasi ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Cryogenic Temperature ◽  
Calibration Method ◽  
Bragg Grating ◽  
Fiber Bragg Grating Sensors ◽  
Look Up Table

scholarly journals FIBER BRAGG GRATING SENSORS FOR MEASURING TEMPERATURE AND STRAIN SIMULTANEOUSLY AT CRYOGENIC TEMPERATURE

2008 ◽  
Author(s):  
R. Rajinikumar ◽  
M. Suesser ◽  
K. G. Narayankhedkar ◽  
G. Krieg ◽  
M. D. Atrey ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Cryogenic Temperature ◽  
Bragg Grating ◽  
Fiber Bragg Grating Sensors

Performance evaluation of metal-coated fiber Bragg grating sensors for sensing cryogenic temperature

Cryogenics ◽  
2008 ◽  
Vol 48 (3-4) ◽  
pp. 142-147 ◽  
Author(s):  
R. Rajini-Kumar ◽  
M. Suesser ◽  
K.G. Narayankhedkar ◽  
G. Krieg ◽  
M.D. Atrey
Keyword(s):  
Performance Evaluation ◽  
Fiber Bragg Grating ◽  
Cryogenic Temperature ◽  
Bragg Grating ◽  
Coated Fiber ◽  
Fiber Bragg Grating Sensors

scholarly journals Fiber Bragg Grating Sensors for Underwater Vibration Measurement: Potential Hydropower Applications

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4272
Author(s):  
Oscar de la Torre ◽  
Ignazio Floris ◽  
Salvador Sales ◽  
Xavier Escaler
Keyword(s):  
Fiber Bragg Grating ◽  
Numerical Models ◽  
Vibration Measurement ◽  
Quality Data ◽  
Bragg Grating ◽  
Laser Vibrometer ◽  
Main Concern ◽  
High Expectations ◽  
Fiber Bragg Grating Sensors ◽  
Hydraulic Machinery

The present paper assesses the performance and characteristics of fiber Bragg grating sensors, with a special interest in their applications in hydraulic machinery and systems. The hydropower industry is turning to this technology with high expectations of obtaining high quality data to validate and calibrate numerical models that could be used as digital twins of key assets, further strengthening the sector’s relevant position within industry 4.0. Prior to any validation, fiber Bragg grating sensors’ ability to perform well underwater for long periods of time with minimal degradation, and their ease of scalability, drew the authors´ attention. A simplified modal analysis of a partially submerged beam is proposed here as a first step to validate the potential of this type of technology for hydropower applications. Fiber Bragg grating sensors are used to obtain the beam’s natural frequencies and to damp vibrations under different conditions. The results are compared with more established waterproof electric strain gauges and a laser vibrometer with good agreement. The presence of several sensors in a single fiber ensures high spatial resolution, fundamental to precisely determine vibration patterns, which is a main concern in this industry. In this work, the beam’s vibration patterns have been successfully captured under different excitations and conditions.

Sign in / Sign up

Export Citation Format

Share Document