• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (2): 20-26.doi: 10.3901/JME.2020.02.020

• 仪器科学与技术 • 上一篇    下一篇

扫码分享

电感-电容双模式液压油污染物检测传感器

史皓天, 张洪朋, 顾长智, 马来好, 李国宾   

  1. 大连海事大学轮机工程学院 大连 116026
  • 收稿日期:2019-01-18 修回日期:2019-07-18 出版日期:2020-01-20 发布日期:2020-03-11
  • 通讯作者: 张洪朋(通信作者),男,1978年出生,博士,教授,博士研究生导师。主要研究方向为船舶机电一体化、船舶液压系统与微流体芯片检测技术。E-mail:zhppeter@163.com
  • 作者简介:史皓天,男,1996年出生,博士研究生。主要研究方向为机电一体化和微流体检测技术。E-mail:dmu6hao@163.com
  • 基金资助:
    国家自然科学基金(51679022,51879020)、中央高校基本科研业务费专项资金(3132019034)和大连市科技创新基金(2019J12GX023)资助项目。

Inductance-capacitance Dual Mode Sensor for the Detection of Contaminants in Hydraulic Oil

SHI Haotian, ZHANG Hongpeng, GU Changzhi, MA Laihao, LI Guobin   

  1. Marine Engineering College, Dalian Maritime University, Dalian 116026
  • Received:2019-01-18 Revised:2019-07-18 Online:2020-01-20 Published:2020-03-11

摘要: 提出了一种电感-电容双模式液压油多污染物检测新方法,所设计的传感器由硅钢片和平面电感线圈构成,通过切换检测模式,既能作为电感传感器区分检测液压油中的铁磁性颗粒和非铁磁性颗粒,也能作为电容传感器区分检测水滴和气泡。较传统的电感式传感器,该双模式检测传感器不仅可对多种污染物进行检测,而且硅钢片能够有效增加检测区域磁场强度,从而提高了电感检测的精度。在搭建的检测系统上,使用该传感器对油液中的污染物进行检测试验,在电感模式下成功检测到了30 μm铁颗粒和110 μm铜颗粒,在电容模式下可对油液中130 μm水滴和170 μm气泡进行检测。该研究对液压油液污染物的综合检测提供了技术支持,对于预防液压系统的故障和延长液压设备工作寿命具有重要的意义。

关键词: 液压油, 双模式, 综合检测, 微流体芯片

Abstract: A inductance-capacitance dual-mode sensor is proposed for detection of multi-contaminant in hydraulic oil. The designed sensor is composed of silicon steel sheet and planar coil. By switching the detection mode, it not only detects ferromagnetic and non-ferromagnetic particles as an inductive sensor, but also detects water droplets and air bubbles as a capacitive sensor. Compared with traditional inductive sensors, the dual-mode detection sensor not only detects multiple contaminants, but also the silicon steel sheet can effectively increase the magnetic field strength of the detection region, thereby improving the accuracy of the inductance detection. On the built detection system, the sensor is used to detect various contaminants in the hydraulic oil. In the inductive mode, 30 μm iron particles and 110 μm copper particles are successfully detected. In the capacitive mode, 130 μm water droplets and 170 μm air bubbles are detected. This study provides technical support for the comprehensive detection of hydraulic oil contaminants, which is of great significance for preventing hydraulic system failures and extending the working life of hydraulic equipment.

Key words: hydraulic oil, dual-mode, comprehensive detection, microfluidic chip

中图分类号: