Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43951
Title: Fiber bragg grating accelerometer based on a transversely rotating stick
Authors: Li, K
Chan, THT
Yau, MH
Thambiratnam, DP
Tam, HY 
Keywords: Accelerometer
Fiber bragg grating
Fiber optics sensor
Issue Date: 2015
Publisher: Urban & Fischer
Source: Optik, 2015, v. 126, no. 23, p. 4337-4341 How to cite?
Journal: Optik 
Abstract: Fiber Bragg Grating (FBG) accelerometers using transverse forces with an inertial object placed at the middle of the FBG have a high sensitivity but low resonant frequency. The resonant frequency 26 Hz and sensitivity at 6 Hz 1.29 nm/g were reported based on a 50 mm-long FBG accelerometer. We demonstrate that the first FBG accelerometer based on a transversely rotating stick, which can, at the same or even larger size, keep the high sensitivity and significantly increase the low resonant frequency. In our experiments, a 77.5 mm-long FBG accelerometer has achieved a similar sensitivity but 65% higher resonant frequency. This novel structure not only significantly widens the potential applications of FBG accelerometers by increasing their resonant frequencies but also provides a new route to design other accelerometers, e.g. micro accelerometers.
URI: http://hdl.handle.net/10397/43951
ISSN: 0030-4026
DOI: 10.1016/j.ijleo.2015.08.125
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