Long term strain behavior of PMMA based polymer optical fibers

Ivan-Lazar Bundalo; Kristian Nielsen; Getinet Woyessa; Ole Bang

doi:10.1117/12.2195267

Long term strain behavior of PMMA based polymer optical fibers

Ivan-Lazar Bundalo, Kristian Nielsen, Getinet Woyessa, Ole Bang

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

We are reporting on the viscoelasticity of PMMA based Fiber Bragg Grating (FBG) strain sensors when exposed to repeated sequences of long term strain and relaxation with various duty-cycles. In terms of the FBG wavelength and how it follows the strain cycle, we have shown that in the small strain regime (up to 1%) an elastic-dominated fast relaxing range, which is followed by a mainly viscous relaxation, depends both on the strain level and on the strain duration. For a small ratio of the strain-relax durations, this fast relaxation range stays almost the same. However, with increasing strain duration, for the same relaxation time, this range will be shortened, which might influence the sensing capabilities of the fiber sensor.

Original language	English
Title of host publication	Proceedings of SPIE
Number of pages	4
Volume	9634
Publisher	SPIE - International Society for Optical Engineering
Publication date	2015
Article number	96347Y
DOIs	https://doi.org/10.1117/12.2195267
Publication status	Published - 2015
Event	24th International Conference on Optical Fibre Sensors - Curitiba , Brazil Duration: 28 Sept 2015 → 2 Oct 2015 Conference number: 24

Conference

Conference	24th International Conference on Optical Fibre Sensors
Number	24
Country/Territory	Brazil
City	Curitiba
Period	28/09/2015 → 02/10/2015

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

Bibliographical note

Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

Viscoelasticity
pmma
FBG
Strain
Sensor

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title = "Long term strain behavior of PMMA based polymer optical fibers",

abstract = "We are reporting on the viscoelasticity of PMMA based Fiber Bragg Grating (FBG) strain sensors when exposed to repeated sequences of long term strain and relaxation with various duty-cycles. In terms of the FBG wavelength and how it follows the strain cycle, we have shown that in the small strain regime (up to 1%) an elastic-dominated fast relaxing range, which is followed by a mainly viscous relaxation, depends both on the strain level and on the strain duration. For a small ratio of the strain-relax durations, this fast relaxation range stays almost the same. However, with increasing strain duration, for the same relaxation time, this range will be shortened, which might influence the sensing capabilities of the fiber sensor.",

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author = "Ivan-Lazar Bundalo and Kristian Nielsen and Getinet Woyessa and Ole Bang",

note = "Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.; 24th International Conference on Optical Fibre Sensors, OFS-24 ; Conference date: 28-09-2015 Through 02-10-2015",

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Bundalo, I-L, Nielsen, K, Woyessa, G & Bang, O 2015, Long term strain behavior of PMMA based polymer optical fibers. in Proceedings of SPIE. vol. 9634, 96347Y, SPIE - International Society for Optical Engineering, Proceedings of SPIE - The International Society for Optical Engineering, 24th International Conference on Optical Fibre Sensors, Curitiba , Brazil, 28/09/2015. https://doi.org/10.1117/12.2195267

Long term strain behavior of PMMA based polymer optical fibers. / Bundalo, Ivan-Lazar; Nielsen, Kristian; Woyessa, Getinet et al.
Proceedings of SPIE. Vol. 9634 SPIE - International Society for Optical Engineering, 2015. 96347Y (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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N2 - We are reporting on the viscoelasticity of PMMA based Fiber Bragg Grating (FBG) strain sensors when exposed to repeated sequences of long term strain and relaxation with various duty-cycles. In terms of the FBG wavelength and how it follows the strain cycle, we have shown that in the small strain regime (up to 1%) an elastic-dominated fast relaxing range, which is followed by a mainly viscous relaxation, depends both on the strain level and on the strain duration. For a small ratio of the strain-relax durations, this fast relaxation range stays almost the same. However, with increasing strain duration, for the same relaxation time, this range will be shortened, which might influence the sensing capabilities of the fiber sensor.

AB - We are reporting on the viscoelasticity of PMMA based Fiber Bragg Grating (FBG) strain sensors when exposed to repeated sequences of long term strain and relaxation with various duty-cycles. In terms of the FBG wavelength and how it follows the strain cycle, we have shown that in the small strain regime (up to 1%) an elastic-dominated fast relaxing range, which is followed by a mainly viscous relaxation, depends both on the strain level and on the strain duration. For a small ratio of the strain-relax durations, this fast relaxation range stays almost the same. However, with increasing strain duration, for the same relaxation time, this range will be shortened, which might influence the sensing capabilities of the fiber sensor.

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BT - Proceedings of SPIE

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ER -

Long term strain behavior of PMMA based polymer optical fibers

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