• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2021, Vol. 57 ›› Issue (2): 39-45.doi: 10.3901/JME.2021.02.039

• 仪器科学与技术 • 上一篇    下一篇

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高精度双线圈式磨粒传感器的设计及研究

史皓天1, 张洪朋1, 马来好1, 曾乃斌2, 刘城3, 陈海泉1   

  1. 1. 大连海事大学轮机工程学院 大连 116026;
    2. 中国船舶重工集团海装风电股份有限公司 重庆 401122;
    3. 重庆海装风电工程技术有限公司 重庆 401122
  • 收稿日期:2019-11-14 修回日期:2020-06-18 出版日期:2021-01-20 发布日期:2021-03-15
  • 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、磨粒检测技术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)、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。

Design and Research of High Sensitivity Double-coil Wear Debris Sensor

SHI Haotian1, ZHANG Hongpeng1, MA Laihao1, ZENG Naibin2, LIU Cheng3, CHEN Haiquan1   

  1. 1. Marine Engineering College, Dalian Maritime University, Dalian 116026;
    2. CSIC Haizhuang Windpower Co., Ltd., Chongqing 401122;
    3. Chongqing Haizhuang Windpower Engineering Technology Co., Ltd., Chongqing 401122
  • Received:2019-11-14 Revised:2020-06-18 Online:2021-01-20 Published:2021-03-15

摘要: 提出了一种可检测电感和电阻参数的高精度双线圈式磨粒传感器,其可对液压油污染物的检测提供技术支持。激励硅钢片和内置硅钢片通过磁化作用以及对磁场的聚集作用在检测区域中生成了高强度磁场,从而提升了传感器的检测精度。正方形检测通道的设计充分利用了两电感线圈之间的区域,提高了传感器的检测通量。试验表明,内置硅钢片不会改变磨粒传感器的信号噪声,有助于获取更优的信噪比。并且激励硅钢片和内置硅钢片对置区域的磁场强度最强,金属颗粒通过该区域时就会产生电感和电阻变化的脉冲峰值。在搭建的测量系统对油液中的金属磨粒进行检测试验,结果表明电感参数能够检测到25 μm铁颗粒和100 μm铜颗粒,电阻参数方式可检测35 μm铁颗粒和85 μm铜颗粒。通过结合电感参数检测结果和电阻参数检测结果,磨粒传感器可实现对25 μm铁颗粒和85 μm铜颗粒的区分检测。

关键词: 磨粒传感器, 双线圈, 硅钢片, 高精度, 电感参数, 电阻参数

Abstract: A high sensitivity dual-coil wear debris sensor that detects inductance and resistance parameters is presented, which provides technical support for the detection of particle contamination in hydraulic oil. The excitation silicon steel sheet and built-in silicon steel sheet generate a high-intensity magnetic field in the detection region by magnetization and aggregation effect, thereby improving the detection accuracy of the sensor. The square detection channel is designed to make full use of the region between the two coils, increasing the detection throughput of the sensor. Experiments show that the built-in silicon steel sheet does not change the signal noise of the wear debris sensor, which is conducive to obtain a better signal-to-noise ratio. In the region of the exciting silicon steel sheet and the built-in silicon steel sheet are placed opposite each other, the magnetic field strength is the strongest, so the inductance and resistance peak of metal particles will occur. In the built measuring system, the metal wear debris in the oil is detected. In the experiments, the 25 μm iron particle and 100 μm copper particle can be detected with inductance parameter, and the 35 μm iron particle and 85 μm copper particle can be detected with resistance parameter. By combining the inductance detection and resistance detection results, the wear debris sensor can distinguish and detect 25 μm iron particles and 85 μm copper particles.

Key words: wear debris sensor, dual-coil, silicon steel sheet, high sensitivity, inductance parameter, resistance parameter

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