An intensity modulation based fiber-optic loop sensor for high sensitivity temperature measurement

Yi Yang; Alessandro Averardi; Nikhil Gupta

doi:10.1016/j.sna.2019.111554

An intensity modulation based fiber-optic loop sensor for high sensitivity temperature measurement

Yi Yang, Alessandro Averardi, Nikhil Gupta

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The possibility of conducting high resolution temperature measurements using a power modulation based fiber-optic loop sensor (FOLS) is studied in this work. FOLS is an intensity modulation based sensor that is relatively inexpensive and easier to operate than frequency modulation based sensors. A sensing element is designed for temperature sensing while protecting FOLS from direct heat and possible thermal degradation over time. The resonance peaks present in the transmitted intensity signal are used to conduct high resolution temperature measurements. The measured temperature is found to closely match with the thermocouple measurements with an average difference of 2.53%. Also, the measurements are found to be repeatable. Theoretical and finite element results closely match with the experimental results by using FOLS along with designed actuator and present the possibility of developing the sensing elements for measuring temperature in the desired range and for use in a diverse range of environments.

Original language	English (US)
Article number	111554
Journal	Sensors and Actuators, A: Physical
Volume	297
DOIs	https://doi.org/10.1016/j.sna.2019.111554
State	Published - Oct 1 2019

Keywords

Fiber-optic sensor
Power modulation
Temperature sensor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering

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10.1016/j.sna.2019.111554

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title = "An intensity modulation based fiber-optic loop sensor for high sensitivity temperature measurement",

abstract = "The possibility of conducting high resolution temperature measurements using a power modulation based fiber-optic loop sensor (FOLS) is studied in this work. FOLS is an intensity modulation based sensor that is relatively inexpensive and easier to operate than frequency modulation based sensors. A sensing element is designed for temperature sensing while protecting FOLS from direct heat and possible thermal degradation over time. The resonance peaks present in the transmitted intensity signal are used to conduct high resolution temperature measurements. The measured temperature is found to closely match with the thermocouple measurements with an average difference of 2.53%. Also, the measurements are found to be repeatable. Theoretical and finite element results closely match with the experimental results by using FOLS along with designed actuator and present the possibility of developing the sensing elements for measuring temperature in the desired range and for use in a diverse range of environments.",

keywords = "Fiber-optic sensor, Power modulation, Temperature sensor",

author = "Yi Yang and Alessandro Averardi and Nikhil Gupta",

note = "Funding Information: This work is supported by PowerBridgeNY, New York, USA Grant (A13-0443-002). Authors thank the MAE Department at NYU Tandon School of Engineering for providing facilities and support for this study. Funding Information: This work is supported by PowerBridgeNY, New York, USA Grant ( A13-0443-002 ). Authors thank the MAE Department at NYU Tandon School of Engineering for providing facilities and support for this study. ",

year = "2019",

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doi = "10.1016/j.sna.2019.111554",

language = "English (US)",

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AU - Yang, Yi

AU - Averardi, Alessandro

AU - Gupta, Nikhil

N1 - Funding Information: This work is supported by PowerBridgeNY, New York, USA Grant (A13-0443-002). Authors thank the MAE Department at NYU Tandon School of Engineering for providing facilities and support for this study. Funding Information: This work is supported by PowerBridgeNY, New York, USA Grant ( A13-0443-002 ). Authors thank the MAE Department at NYU Tandon School of Engineering for providing facilities and support for this study.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The possibility of conducting high resolution temperature measurements using a power modulation based fiber-optic loop sensor (FOLS) is studied in this work. FOLS is an intensity modulation based sensor that is relatively inexpensive and easier to operate than frequency modulation based sensors. A sensing element is designed for temperature sensing while protecting FOLS from direct heat and possible thermal degradation over time. The resonance peaks present in the transmitted intensity signal are used to conduct high resolution temperature measurements. The measured temperature is found to closely match with the thermocouple measurements with an average difference of 2.53%. Also, the measurements are found to be repeatable. Theoretical and finite element results closely match with the experimental results by using FOLS along with designed actuator and present the possibility of developing the sensing elements for measuring temperature in the desired range and for use in a diverse range of environments.

AB - The possibility of conducting high resolution temperature measurements using a power modulation based fiber-optic loop sensor (FOLS) is studied in this work. FOLS is an intensity modulation based sensor that is relatively inexpensive and easier to operate than frequency modulation based sensors. A sensing element is designed for temperature sensing while protecting FOLS from direct heat and possible thermal degradation over time. The resonance peaks present in the transmitted intensity signal are used to conduct high resolution temperature measurements. The measured temperature is found to closely match with the thermocouple measurements with an average difference of 2.53%. Also, the measurements are found to be repeatable. Theoretical and finite element results closely match with the experimental results by using FOLS along with designed actuator and present the possibility of developing the sensing elements for measuring temperature in the desired range and for use in a diverse range of environments.

KW - Fiber-optic sensor

KW - Power modulation

KW - Temperature sensor

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An intensity modulation based fiber-optic loop sensor for high sensitivity temperature measurement

Abstract

Keywords

ASJC Scopus subject areas

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