Title
Specific vibration frequency detection based on hetero-core fiber optic sensing scheme for security environment monitoring
Abstract
Fiber optic sensors have a potential to make ideal vibration sensors for smart structures because they can be operated without supplying the power at the sensor itself, have the capability of resistance to corrosion and fatigue, immunity to electrical interference, usage for a long time and safe. Additionally, the fiber optic sensors are practically able to operate the remote sensing due to stable transmission fiber line. Especially, hetero-core optical fiber sensors for environmental monitoring system have several advantages such as high accuracy, repeatability and temperature independency. This paper reports a novel approach to dynamic measurements for vibrations of the window using two types of the hetero-core optical fiber vibration sensors. A first vibration sensor can detect a vibration with high sensitivity due to effectively convert the vibration into change in the curvature of the fiber sensor. A second type of vibration sensor, which is lower sensitivity than the first type sensor, can detect vibrations with a few millimeters in thickness. It is shown that the vibration frequency depends on a fiber length of the two fixed points. A characteristic of spectrum peak shows the relatively wide frequency bands with ranging from 400 to 5000 Hz and from 1000 to 4500 Hz as the fixed points distances in the ranges of 15-45 mm and 10-25 mm for the first and second types of sensors, respectively.
Year
DOI
Venue
2009
10.1109/ROSE.2009.5355988
Lecco
Keywords
Field
DocType
fibre optic sensors,monitoring,remote sensing,security,vibration measurement,corrosion resistance,distance 10 mm to 25 mm,distance 15 mm to 45 mm,electrical interference immunity,environmental monitoring system,fatigue resistance,frequency 400 Hz to 5000 Hz,hetero-core fiber optic sensing,remote sensing,security environment monitoring,specific vibration frequency detection,stable transmission fiber line,vibration sensors,fiber optic sensor,frequency,hetero-core,security network,vibration
Optical fiber,Fiber optic sensor,Curvature,Fiber,Electromagnetic interference,Ranging,Acoustics,Vibration,Engineering,Electrical engineering,Radio spectrum
Conference
ISBN
Citations 
PageRank 
978-1-4244-4778-7
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Hideki Okazaki100.34
Michiko Nishiyama2227.59
Kazuhiro Watanabe3248.31