A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure

A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure

A multipoint liquid level sensor based on the RI modulation of macrobend polymer optical fiber (POF) couplers is proposed. By twinning two twisted POFs around a race-track column, a series of U-shaped sensing heads are achieved. The output power in the passive fiber declines in a step form while the...

Full description

Bibliographic Details
Main Authors: Yingzi Zhang, Yulong Hou, Yanjun Zhang, Liang Zhang, Yanjun Hu, Xiaolong Gao, Huixin Zhang, Wenyi Liu
Format: Article
Language:English
Published: Hindawi Limited 2018-01-01
Series:Journal of Sensors
Online Access:http://dx.doi.org/10.1155/2018/4914382
id doaj-683d27daa6e744e783edfcb2878eb22c
record_format Article
spelling doaj-683d27daa6e744e783edfcb2878eb22c2020-11-24T20:56:52ZengHindawi LimitedJournal of Sensors1687-725X1687-72682018-01-01201810.1155/2018/49143824914382A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical StructureYingzi Zhang0Yulong Hou1Yanjun Zhang2Liang Zhang3Yanjun Hu4Xiaolong Gao5Huixin Zhang6Wenyi Liu7Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaKey Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, ChinaA multipoint liquid level sensor based on the RI modulation of macrobend polymer optical fiber (POF) couplers is proposed. By twinning two twisted POFs around a race-track column, a series of U-shaped sensing heads are achieved. The output power in the passive fiber declines in a step form while the sensing heads are immersed into liquid in turn. The introduction of UV optical cement in the gap between two POFs improves the side-coupling ratio, increasing the attenuation per step. For the measurement range of 100 cm, the resolution is 2 cm. The sensor can differentiate different liquids with low temperature dependence.http://dx.doi.org/10.1155/2018/4914382
collection DOAJ
language English
format Article
sources DOAJ
author Yingzi Zhang
Yulong Hou
Yanjun Zhang
Liang Zhang
Yanjun Hu
Xiaolong Gao
Huixin Zhang
Wenyi Liu
spellingShingle Yingzi Zhang
Yulong Hou
Yanjun Zhang
Liang Zhang
Yanjun Hu
Xiaolong Gao
Huixin Zhang
Wenyi Liu
A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
Journal of Sensors
author_facet Yingzi Zhang
Yulong Hou
Yanjun Zhang
Liang Zhang
Yanjun Hu
Xiaolong Gao
Huixin Zhang
Wenyi Liu
author_sort Yingzi Zhang
title A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
title_short A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
title_full A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
title_fullStr A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
title_full_unstemmed A Multipoint Liquid Level Sensor Based on Two Twisted Polymer Optical Fibers in a Race-Track Helical Structure
title_sort multipoint liquid level sensor based on two twisted polymer optical fibers in a race-track helical structure
publisher Hindawi Limited
series Journal of Sensors
issn 1687-725X
1687-7268
publishDate 2018-01-01
description A multipoint liquid level sensor based on the RI modulation of macrobend polymer optical fiber (POF) couplers is proposed. By twinning two twisted POFs around a race-track column, a series of U-shaped sensing heads are achieved. The output power in the passive fiber declines in a step form while the sensing heads are immersed into liquid in turn. The introduction of UV optical cement in the gap between two POFs improves the side-coupling ratio, increasing the attenuation per step. For the measurement range of 100 cm, the resolution is 2 cm. The sensor can differentiate different liquids with low temperature dependence.
url http://dx.doi.org/10.1155/2018/4914382
work_keys_str_mv AT yingzizhang amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yulonghou amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yanjunzhang amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT liangzhang amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yanjunhu amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT xiaolonggao amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT huixinzhang amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT wenyiliu amultipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yingzizhang multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yulonghou multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yanjunzhang multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT liangzhang multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT yanjunhu multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT xiaolonggao multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT huixinzhang multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
AT wenyiliu multipointliquidlevelsensorbasedontwotwistedpolymeropticalfibersinaracetrackhelicalstructure
_version_ 1716789451949080576

Similar Items