Expansion of Spatial Measurement Range by Use of Vernier Effect in Fiber Bragg Grating Strain Sensing System with Synthesis of Optical Coherence Function

Momoyo Enyama; Zuyuan He; Kazuo Hotate

doi:10.11499/sicep.2004.0.37.1

SICE Annual Conference 2004

DOI https://doi.org/10.11499/sicep.2004.0.37.1

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: The IEEE Industrial Electronics Society, The IEEE Robotics and Automation Society, The IEEE Control Systems Society, The IEEE Systems, Man and Cybernetics Society, The Instrumentation, Systems, and Automation Society

Expansion of Spatial Measurement Range by Use of Vernier Effect in Fiber Bragg Grating Strain Sensing System with Synthesis of Optical Coherence Function

Momoyo Enyama, *Zuyuan He, Kazuo Hotate

Author information

Keywords: FBG strain sensor, synthesis of optical coherence function, vernier effect

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Pages 37

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Abstract

A novel scheme to expand the spatial measurement range of multiplexed fiber Bragg grating (FBG) strain sensor by syntheses of optical coherence function (SOCF) is proposed, which allows de-multiplexing of FBGs of similar Bragg wavelengths. By actively making use of the multiple coherence peaks synthesized in SOCF to de-multiplex the FBGs, the measurement range is expanded per vernier effect.

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