Detection system of small particles in hydraulic oil

LIU En-chen; ZHANG Hong-peng; ZENG Lin; WANG Chuan-hang; CHEN Hai-quan; SUN Yu-qing

doi:10.3788/OPE.20152313.0396

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Detection system of small particles in hydraulic oil

更新时间：2020-08-13

- Detection system of small particles in hydraulic oil
- Optics and Precision Engineering Vol. 23, Issue 10z, Pages: 396-402(2015)
- 作者机构：
  
  大连海事大学轮机工程学院,辽宁大连,116026
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152313.0396
  CLC： TH137;TP212.1
- Received：15 April 2015，
  
  Revised：21 May 2015，
  
  Published：14 November 2015
- 稿件说明：
移动端阅览
刘恩辰, 张洪朋, 曾霖等. 高精度液压油微小颗粒检测系统[J]. 光学精密工程, 2015,23(10z): 396-402

LIU En-chen, ZHANG Hong-peng, ZENG Lin etc. Detection system of small particles in hydraulic oil[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 396-402
刘恩辰, 张洪朋, 曾霖等. 高精度液压油微小颗粒检测系统[J]. 光学精密工程, 2015,23(10z): 396-402 DOI： 10.3788/OPE.20152313.0396.

LIU En-chen, ZHANG Hong-peng, ZENG Lin etc. Detection system of small particles in hydraulic oil[J]. Editorial Office of Optics and Precision Engineering, 2015,23(10z): 396-402 DOI： 10.3788/OPE.20152313.0396.

摘要

针对液压系统故障预测与诊断的需求

设计了简单有效的油液微小颗粒快速光学检测系统。采用光阻法进行颗粒检测;设计并制作了微流控检测芯片

利用ANSYS软件对聚焦区域进行了流体速度和流动轨迹仿真;在所搭建的光学检测系统上进行了颗粒检测计数实验和浓度检测实验

并结合光阻法检测原理对实验所得数据和信号进行了理论分析。实验结果表明:20

m颗粒的检测信号具有较高的信噪比。结合所编JAVA程序完成了相应的颗粒计数;当液压油中颗粒浓度增大时

检测信号也随之增大;颗粒浓度为200010

-6

的油样通过检测区域所产生的脉冲信号大约是浓度为10010

-6

的油样所产生的脉冲信号的6倍。设计的微流控检测芯片及光学检测系统可用于液压油中微小金属颗粒检测

可实现20

m以上颗粒的检测与计数

并能够区分含有不同颗粒浓度的油液。

Abstract

To help the fault prediction and diagnosis of a hydracelic system

a simple and effective optical detection system was designed to detect rapidly small particles in hydraulic oil. The light blocking optical method was used in this paper

the microfluidic detection chip for hydraulic oil detection was designed and fabricated

and flow speed and the trajectory of oil in a focus area were simulated by ANSYS software. The experiments of particle detection

counting and particle concentration detection were performed in the optical detection system

the data and signal in the experiments were analyzed with optical detection principle. Experimental results indicate that the signal-to-noise ratio of 20

m particle is higher

and the counting of particles is realized by JAVA program. The amplitude of signal increases with increasing particle concentration

and the signal amplitude caused by 200010

-6

is 6 times as high as that caused by 10010

-6

. The miacrofluidic chip and the detection system designed in the paper realize the rapid detection of small particles with the diameter larger than 20

m in hydraulic oil

and the oil with different particle concentrations can be distinguished.

关键词

Keywords

references

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