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Fiber Bragg grating strain modulation based on nonlinear string transverse force amplifier

By Kuo Li, Man Hong Yau, Tommy H.T. Chan, David Thambiratnam and Hwa Yaw Tam

Abstract

The only effective method of Fiber Bragg Grating (FBG) strain modulation has been by changing the distance between its two fixed ends. We demonstrate an alternative being more sensitive to force based on the nonlinear amplification relationship between a transverse force applied to a stretched string and its induced axial force. It may improve the sensitivity and size of an FBG force sensor, reduce the number of FBGs needed for multi-axial force monitoring, and control the resonant frequency of an FBG accelerometer

Topics: 020399 Classical Physics not elsewhere classified, 091300 MECHANICAL ENGINEERING
Publisher: Optical Society of America
Year: 2013
OAI identifier: oai:eprints.qut.edu.au:56659

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Citations

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