A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors

Umesh Sampath; Hyunjin Kim; Dae Gil Kim; Minho Song

doi:10.1117/12.2184431

A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors

Umesh Sampath
, Hyunjin Kim
, Dae Gil Kim
, Minho Song^*

^*Corresponding author for this work

Division of Electronic Engineering

Jeonbuk National University

Research output: Contribution to conference › Conference paper › peer-review

Abstract

A fiber-optic epoxy cure monitoring technique for efficient wind turbine blade manufacturing and monitoring is presented. To optimize manufacturing cycle, fiber-optic sensors are embedded in composite materials of wind turbine blades. The reflection spectra of the sensors indicate the onset of gelification and the completion of epoxy curing. After manufacturing process, the same sensors are utilized for in-field condition monitoring. Because of residual stresses and strain gradients from the curing process, the embedded sensors may experience distortions in reflection spectra, resulting in measurement errors. We applied a Gaussian curve-fitting algorithm to the distorted spectra, which substantially improved the measurement accuracy.

Original language	English
Title of host publication	Fifth Asia-Pacific Optical Sensors Conference, APOS 2015
Editors	Byoungho Lee, Yunjiang Rao, Sang Bae Lee
Publisher	SPIE
ISBN (Electronic)	9781628418651
DOIs	https://doi.org/10.1117/12.2184431
State	Published - 2015
Event	5th Asia-Pacific Optical Sensors Conference, APOS 2015 - Jeju, Korea, Republic of Duration: 2015.05.20 → 2015.05.22

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9655
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	5th Asia-Pacific Optical Sensors Conference, APOS 2015
Country/Territory	Korea, Republic of
City	Jeju
Period	15.05.20 → 15.05.22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation, and Infrastructure

Keywords

cure monitoring
distorted sensor
Fiber-optic sensors
Gaussian curve-fitting

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Computer Science & Information Systems
Mathematics
Engineering - Electrical & Electronic
Engineering - Petroleum
Data Science
Physics & Astronomy

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10.1117/12.2184431

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Sampath, U., Kim, H., Kim, D. G., & Song, M. (2015). A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors. In B. Lee, Y. Rao, & S. B. Lee (Eds.), Fifth Asia-Pacific Optical Sensors Conference, APOS 2015 Article 96550L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9655). SPIE. https://doi.org/10.1117/12.2184431

@inproceedings{376d2bc377654786aaa62ea00da327f2,

title = "A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors",

abstract = "A fiber-optic epoxy cure monitoring technique for efficient wind turbine blade manufacturing and monitoring is presented. To optimize manufacturing cycle, fiber-optic sensors are embedded in composite materials of wind turbine blades. The reflection spectra of the sensors indicate the onset of gelification and the completion of epoxy curing. After manufacturing process, the same sensors are utilized for in-field condition monitoring. Because of residual stresses and strain gradients from the curing process, the embedded sensors may experience distortions in reflection spectra, resulting in measurement errors. We applied a Gaussian curve-fitting algorithm to the distorted spectra, which substantially improved the measurement accuracy.",

keywords = "cure monitoring, distorted sensor, Fiber-optic sensors, Gaussian curve-fitting",

author = "Umesh Sampath and Hyunjin Kim and Kim, \{Dae Gil\} and Minho Song",

note = "Publisher Copyright: {\textcopyright} 2015 Copyright SPIE.; 5th Asia-Pacific Optical Sensors Conference, APOS 2015 ; Conference date: 20-05-2015 Through 22-05-2015",

year = "2015",

doi = "10.1117/12.2184431",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Byoungho Lee and Yunjiang Rao and Lee, \{Sang Bae\}",

booktitle = "Fifth Asia-Pacific Optical Sensors Conference, APOS 2015",

}

Sampath, U, Kim, H, Kim, DG & Song, M 2015, A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors. in B Lee, Y Rao & SB Lee (eds), Fifth Asia-Pacific Optical Sensors Conference, APOS 2015., 96550L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9655, SPIE, 5th Asia-Pacific Optical Sensors Conference, APOS 2015, Jeju, Korea, Republic of, 15.05.20. https://doi.org/10.1117/12.2184431

A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors. / Sampath, Umesh; Kim, Hyunjin; Kim, Dae Gil et al.
Fifth Asia-Pacific Optical Sensors Conference, APOS 2015. ed. / Byoungho Lee; Yunjiang Rao; Sang Bae Lee. SPIE, 2015. 96550L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9655).

Research output: Contribution to conference › Conference paper › peer-review

TY - GEN

T1 - A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors

AU - Sampath, Umesh

AU - Kim, Hyunjin

AU - Kim, Dae Gil

AU - Song, Minho

PY - 2015

Y1 - 2015

N2 - A fiber-optic epoxy cure monitoring technique for efficient wind turbine blade manufacturing and monitoring is presented. To optimize manufacturing cycle, fiber-optic sensors are embedded in composite materials of wind turbine blades. The reflection spectra of the sensors indicate the onset of gelification and the completion of epoxy curing. After manufacturing process, the same sensors are utilized for in-field condition monitoring. Because of residual stresses and strain gradients from the curing process, the embedded sensors may experience distortions in reflection spectra, resulting in measurement errors. We applied a Gaussian curve-fitting algorithm to the distorted spectra, which substantially improved the measurement accuracy.

AB - A fiber-optic epoxy cure monitoring technique for efficient wind turbine blade manufacturing and monitoring is presented. To optimize manufacturing cycle, fiber-optic sensors are embedded in composite materials of wind turbine blades. The reflection spectra of the sensors indicate the onset of gelification and the completion of epoxy curing. After manufacturing process, the same sensors are utilized for in-field condition monitoring. Because of residual stresses and strain gradients from the curing process, the embedded sensors may experience distortions in reflection spectra, resulting in measurement errors. We applied a Gaussian curve-fitting algorithm to the distorted spectra, which substantially improved the measurement accuracy.

KW - cure monitoring

KW - distorted sensor

KW - Fiber-optic sensors

KW - Gaussian curve-fitting

UR - https://www.scopus.com/pages/publications/84939124199

U2 - 10.1117/12.2184431

DO - 10.1117/12.2184431

M3 - Conference paper

AN - SCOPUS:84939124199

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Fifth Asia-Pacific Optical Sensors Conference, APOS 2015

A2 - Lee, Byoungho

A2 - Rao, Yunjiang

A2 - Lee, Sang Bae

PB - SPIE

T2 - 5th Asia-Pacific Optical Sensors Conference, APOS 2015

Y2 - 20 May 2015 through 22 May 2015

ER -

A fiber-optic cure monitoring technique with accuracy improvement of distorted embedded sensors

Abstract

Publication series

Conference

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

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