Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors

Wear debris in hydraulic oil contains important information on the operation of equipment, which is important for condition monitoring and fault diagnosis in mechanical equipment. A micro inductive sensor based on the inductive coulter principle is presented in this work. It consists of a straight m...

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Main Authors: Lin Zeng, Hongpeng Zhang, Qiang Wang, Xingming Zhang
Format: Article
Language:English
Published: MDPI AG 2018-03-01
Series:Micromachines
Subjects:
Online Access:http://www.mdpi.com/2072-666X/9/3/117
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author Lin Zeng
Hongpeng Zhang
Qiang Wang
Xingming Zhang
author_facet Lin Zeng
Hongpeng Zhang
Qiang Wang
Xingming Zhang
author_sort Lin Zeng
collection DOAJ
description Wear debris in hydraulic oil contains important information on the operation of equipment, which is important for condition monitoring and fault diagnosis in mechanical equipment. A micro inductive sensor based on the inductive coulter principle is presented in this work. It consists of a straight micro-channel and a 3-D solenoid coil wound on the micro-channel. Instead of detecting the inductance change of the inductive sensor, the equivalent resistance change of the inductive sensor is detected for non-ferrous particle (copper particle) monitoring. The simulation results show that the resistance change rate caused by the presence of copper particles is greater than the inductance change rate. Copper particles with sizes ranging from 48 μm to 150 μm were used in the experiment, and the experimental results are in good agreement with the simulation results. By detecting the inductive change of the micro inductive sensor, the detection limit of the copper particles only reaches 70 μm. However, the detection limit can be improved to 48 μm by detecting the equivalent resistance of the inductive sensor. The equivalent resistance method was demonstrated to have a higher detection accuracy than conventional inductive detection methods for non-ferrous particle detection in hydraulic oil.
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spelling doaj.art-8c3f4d066a114731ba9b6be8e11afc312022-12-21T17:31:35ZengMDPI AGMicromachines2072-666X2018-03-019311710.3390/mi9030117mi9030117Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive SensorsLin Zeng0Hongpeng Zhang1Qiang Wang2Xingming Zhang3Marine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaShanghai Salvage Ministry of Transport, Shanghai 200000, ChinaSchool of Naval Architecture and Ocean Engineering, Harbin Institute of Technology, Weihai 264209, ChinaWear debris in hydraulic oil contains important information on the operation of equipment, which is important for condition monitoring and fault diagnosis in mechanical equipment. A micro inductive sensor based on the inductive coulter principle is presented in this work. It consists of a straight micro-channel and a 3-D solenoid coil wound on the micro-channel. Instead of detecting the inductance change of the inductive sensor, the equivalent resistance change of the inductive sensor is detected for non-ferrous particle (copper particle) monitoring. The simulation results show that the resistance change rate caused by the presence of copper particles is greater than the inductance change rate. Copper particles with sizes ranging from 48 μm to 150 μm were used in the experiment, and the experimental results are in good agreement with the simulation results. By detecting the inductive change of the micro inductive sensor, the detection limit of the copper particles only reaches 70 μm. However, the detection limit can be improved to 48 μm by detecting the equivalent resistance of the inductive sensor. The equivalent resistance method was demonstrated to have a higher detection accuracy than conventional inductive detection methods for non-ferrous particle detection in hydraulic oil.http://www.mdpi.com/2072-666X/9/3/117non-ferrous wear debrismicro inductive sensorhydraulic oilequivalent resistance method
spellingShingle Lin Zeng
Hongpeng Zhang
Qiang Wang
Xingming Zhang
Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
Micromachines
non-ferrous wear debris
micro inductive sensor
hydraulic oil
equivalent resistance method
title Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
title_full Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
title_fullStr Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
title_full_unstemmed Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
title_short Monitoring of Non-Ferrous Wear Debris in Hydraulic Oil by Detecting the Equivalent Resistance of Inductive Sensors
title_sort monitoring of non ferrous wear debris in hydraulic oil by detecting the equivalent resistance of inductive sensors
topic non-ferrous wear debris
micro inductive sensor
hydraulic oil
equivalent resistance method
url http://www.mdpi.com/2072-666X/9/3/117
work_keys_str_mv AT linzeng monitoringofnonferrousweardebrisinhydraulicoilbydetectingtheequivalentresistanceofinductivesensors
AT hongpengzhang monitoringofnonferrousweardebrisinhydraulicoilbydetectingtheequivalentresistanceofinductivesensors
AT qiangwang monitoringofnonferrousweardebrisinhydraulicoilbydetectingtheequivalentresistanceofinductivesensors
AT xingmingzhang monitoringofnonferrousweardebrisinhydraulicoilbydetectingtheequivalentresistanceofinductivesensors