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Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure

An inductive oil pollutant detection sensor based on a high-gradient magnetic field structure is designed in this paper, which is mainly used for online detection and fault analysis of pollutants in hydraulic and lubricating oil systems. The innovation of the sensor is based on the inductance detect...

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Autores principales: Li, Wei, Bai, Chenzhao, Wang, Chengjie, Zhang, Hongpeng, Ilerioluwa, Lebile, Wang, Xiaotian, Yu, Shuang, Li, Guobin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227864/
https://www.ncbi.nlm.nih.gov/pubmed/34070828
http://dx.doi.org/10.3390/mi12060638
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author Li, Wei
Bai, Chenzhao
Wang, Chengjie
Zhang, Hongpeng
Ilerioluwa, Lebile
Wang, Xiaotian
Yu, Shuang
Li, Guobin
author_facet Li, Wei
Bai, Chenzhao
Wang, Chengjie
Zhang, Hongpeng
Ilerioluwa, Lebile
Wang, Xiaotian
Yu, Shuang
Li, Guobin
author_sort Li, Wei
collection PubMed
description An inductive oil pollutant detection sensor based on a high-gradient magnetic field structure is designed in this paper, which is mainly used for online detection and fault analysis of pollutants in hydraulic and lubricating oil systems. The innovation of the sensor is based on the inductance detection method. Permalloy is embedded in the sensing region of the sensor, so that the detection area generates a high gradient magnetic field to enhance the detection accuracy of the sensor. Compared with traditional inductive sensors, the sensor has a significant improvement in detection accuracy, and the addition of permalloy greatly improves the stability of the sensor’s detection unit structure. The article theoretically analyzes the working principle of the sensor, optimizes the design parameters and structure of the sensor through simulation, determines the best permalloy parameters, and establishes an experimental system for verification. Experimental results show that when a piece of permalloy is added to the sensing unit, the signal-to-noise ratio (SNR) of iron particles is increased by more than 20%, and the signal-to-noise ratio of copper particles is increased by more than 70%. When two pieces of permalloy are added, the signal-to-noise ratio for iron particles is increased by more than 70%, and the SNR for copper particles is increased several times. This method raises the lower limit of detection for ferromagnetic metal particles to 20 μm, and the lower limit for detection of non-ferromagnetic metal particles to 80 μm, which is the higher detection accuracy of the planar coil sensors. This paper provides a new and faster online method for pollutant detection in oil, which is of great significance for diagnosing and monitoring the health of oil in mechanical systems.
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spelling pubmed-82278642021-06-26 Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure Li, Wei Bai, Chenzhao Wang, Chengjie Zhang, Hongpeng Ilerioluwa, Lebile Wang, Xiaotian Yu, Shuang Li, Guobin Micromachines (Basel) Article An inductive oil pollutant detection sensor based on a high-gradient magnetic field structure is designed in this paper, which is mainly used for online detection and fault analysis of pollutants in hydraulic and lubricating oil systems. The innovation of the sensor is based on the inductance detection method. Permalloy is embedded in the sensing region of the sensor, so that the detection area generates a high gradient magnetic field to enhance the detection accuracy of the sensor. Compared with traditional inductive sensors, the sensor has a significant improvement in detection accuracy, and the addition of permalloy greatly improves the stability of the sensor’s detection unit structure. The article theoretically analyzes the working principle of the sensor, optimizes the design parameters and structure of the sensor through simulation, determines the best permalloy parameters, and establishes an experimental system for verification. Experimental results show that when a piece of permalloy is added to the sensing unit, the signal-to-noise ratio (SNR) of iron particles is increased by more than 20%, and the signal-to-noise ratio of copper particles is increased by more than 70%. When two pieces of permalloy are added, the signal-to-noise ratio for iron particles is increased by more than 70%, and the SNR for copper particles is increased several times. This method raises the lower limit of detection for ferromagnetic metal particles to 20 μm, and the lower limit for detection of non-ferromagnetic metal particles to 80 μm, which is the higher detection accuracy of the planar coil sensors. This paper provides a new and faster online method for pollutant detection in oil, which is of great significance for diagnosing and monitoring the health of oil in mechanical systems. MDPI 2021-05-30 /pmc/articles/PMC8227864/ /pubmed/34070828 http://dx.doi.org/10.3390/mi12060638 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Wei
Bai, Chenzhao
Wang, Chengjie
Zhang, Hongpeng
Ilerioluwa, Lebile
Wang, Xiaotian
Yu, Shuang
Li, Guobin
Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title_full Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title_fullStr Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title_full_unstemmed Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title_short Design and Research of Inductive Oil Pollutant Detection Sensor Based on High Gradient Magnetic Field Structure
title_sort design and research of inductive oil pollutant detection sensor based on high gradient magnetic field structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227864/
https://www.ncbi.nlm.nih.gov/pubmed/34070828
http://dx.doi.org/10.3390/mi12060638
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