On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants

On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants

A simple water level measurement method based on wavelength division multiplexing (WDM) is proposed and demonstrated. The measurement principle is based on the change of Fresnel reflection occurring at the end facet of the optical fiber tip (OFT). To increase the spatial resolution of water level se...

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Bibliographic Details
Main Authors: Hoon-Keun Lee, Jaeyul Choo, Gangsig Shin, Sung-Man Kim
Format: Article
Language:English
Published: Elsevier 2020-12-01
Series:Nuclear Engineering and Technology
Subjects:
Spent fuel pool
Water level measurement
Optical fiber sensor
Wavelength division multiplexing
Online Access:http://www.sciencedirect.com/science/article/pii/S1738573320300747
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spelling doaj-4ae75d77df9b47879b463e3da72baeb22020-11-25T04:00:17ZengElsevierNuclear Engineering and Technology1738-57332020-12-01521228472851On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plantsHoon-Keun Lee0Jaeyul Choo1Gangsig Shin2Sung-Man Kim3Department of Safety Research, Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, South KoreaDepartment of Instrumentation, Control and Electrical System, Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, South KoreaDepartment of Safety Research, Korea Institute of Nuclear Safety, 62 Gwahak-ro, Yuseong-gu, Daejeon, 34142, South KoreaDepartment of Electronic Engineering, Kyungsung University, Nam-Gu, Busan, 48434, South Korea; Corresponding author.A simple water level measurement method based on wavelength division multiplexing (WDM) is proposed and demonstrated. The measurement principle is based on the change of Fresnel reflection occurring at the end facet of the optical fiber tip (OFT). To increase the spatial resolution of water level sensing, a broadband light source (BLS) and an arrayed waveguide grating (AWG) are employed. The OFTs are multiplexed with the dedicated wavelength channels of AWG. By measuring all of the reflection powers reflected at the OFTs with a proposed on-site reflectometer, the water level can be monitored continuously for a fast emergency response. Moreover, it can be implemented easily with the commercially available optical components and devices with the simple configuration.http://www.sciencedirect.com/science/article/pii/S1738573320300747Spent fuel poolWater level measurementOptical fiber sensorWavelength division multiplexing
collection DOAJ
language English
format Article
sources DOAJ
author Hoon-Keun Lee
Jaeyul Choo
Gangsig Shin
Sung-Man Kim
spellingShingle Hoon-Keun Lee
Jaeyul Choo
Gangsig Shin
Sung-Man Kim
On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
Nuclear Engineering and Technology
Spent fuel pool
Water level measurement
Optical fiber sensor
Wavelength division multiplexing
author_facet Hoon-Keun Lee
Jaeyul Choo
Gangsig Shin
Sung-Man Kim
author_sort Hoon-Keun Lee
title On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
title_short On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
title_full On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
title_fullStr On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
title_full_unstemmed On-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
title_sort on-site water level measurement method based on wavelength division multiplexing for harsh environments in nuclear power plants
publisher Elsevier
series Nuclear Engineering and Technology
issn 1738-5733
publishDate 2020-12-01
description A simple water level measurement method based on wavelength division multiplexing (WDM) is proposed and demonstrated. The measurement principle is based on the change of Fresnel reflection occurring at the end facet of the optical fiber tip (OFT). To increase the spatial resolution of water level sensing, a broadband light source (BLS) and an arrayed waveguide grating (AWG) are employed. The OFTs are multiplexed with the dedicated wavelength channels of AWG. By measuring all of the reflection powers reflected at the OFTs with a proposed on-site reflectometer, the water level can be monitored continuously for a fast emergency response. Moreover, it can be implemented easily with the commercially available optical components and devices with the simple configuration.
topic Spent fuel pool
Water level measurement
Optical fiber sensor
Wavelength division multiplexing
url http://www.sciencedirect.com/science/article/pii/S1738573320300747
work_keys_str_mv AT hoonkeunlee onsitewaterlevelmeasurementmethodbasedonwavelengthdivisionmultiplexingforharshenvironmentsinnuclearpowerplants
AT jaeyulchoo onsitewaterlevelmeasurementmethodbasedonwavelengthdivisionmultiplexingforharshenvironmentsinnuclearpowerplants
AT gangsigshin onsitewaterlevelmeasurementmethodbasedonwavelengthdivisionmultiplexingforharshenvironmentsinnuclearpowerplants
AT sungmankim onsitewaterlevelmeasurementmethodbasedonwavelengthdivisionmultiplexingforharshenvironmentsinnuclearpowerplants
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