电感式油液检测芯片输出信号的提高

吴瑜; 张洪朋

doi:10.3788/OPE.20172513.0130

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电感式油液检测芯片输出信号的提高

微纳技术与精密机械 | 更新时间：2020-08-13

- 电感式油液检测芯片输出信号的提高
- Improvement of output characteristic of oil detection chip
- 光学精密工程 2017年25卷第10s期页码：130-134
- 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：
  
  国家自然科学基金资助项目（No.51679022）();中央高校基本科研业务费专项资金资助项目（No.3132017013）()
- DOI：10.3788/OPE.20172513.0130
  中图分类号： TB937;TP212.1
- 收稿日期：2017-05-31，
  
  修回日期：2017-06-15，
  
  纸质出版日期：2017-11-25
- 稿件说明：
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吴瑜, 张洪朋,. 电感式油液检测芯片输出信号的提高[J]. 光学精密工程, 2017,25(10s): 130-134

WU Yu, ZHANG Hong-peng,. Improvement of output characteristic of oil detection chip[J]. Editorial Office of Optics and Precision Engineering, 2017,25(10s): 130-134
吴瑜, 张洪朋,. 电感式油液检测芯片输出信号的提高[J]. 光学精密工程, 2017,25(10s): 130-134 DOI： 10.3788/OPE.20172513.0130.

WU Yu, ZHANG Hong-peng,. Improvement of output characteristic of oil detection chip[J]. Editorial Office of Optics and Precision Engineering, 2017,25(10s): 130-134 DOI： 10.3788/OPE.20172513.0130.

摘要

液压系统发生故障可以通过液压油体现出来，金属颗粒是非常重要的参数，对油液中的金属颗粒进行准确的检测，能够对机械设备进行故障诊断和状态预测，因此提高检测芯片的精度尤为重要。为提高电感式微流体检测芯片的精度，对传统的微流体油液检测芯片进行了改进。对聚焦型微流体油液检测芯片的结构进行了设计；利用Maxwell方程对单个倾斜平面线圈的磁场进行理论建模；最后进行实验验证。通过数据处理可得改进后微流体芯片的基础电感为7.894 15×10

-6

H，50个颗粒经过流道的平均电感脉冲值为7.895 08×10

-6

H，因此得到铁颗粒的平均电感增量为9.3×10

-10

H。对比传统的平面线圈微流体电感芯片的平均电感增量为7.008 33×10

-10

H，改进后的具有聚焦功能的微流体电感脉冲值的增量为2.291 67×10

-10

H，提高检测精度达32.67%。

Abstract

The wear condition of lubrication system can be obtained through the lubrication oil

therefore metal particle is a very important parameter. Accurate detection of the metallic wear particle is vital to avoid catastrophic failure of rotating or reciprocating machine. To improve the sensitivity of inductive microfluidic detection chip

an oil detection microfluidic chip was improved. The structure of the chip was designed

and the electromagnetic model of one tilted planar coil was established by the Maxwell function. Then the experimental verification was performed. The experiment results show that the basic inductance is 7.894 15×10

-6

H and the average inductance variation is 7.895 08×10

-6

H. The inductance variation of the copper particle is up to 9.3×10

-10

in comparing with 7.008 33×10

-10

H in planar coil

with a 32.67% improvement in sensitivity.

关键词

Keywords

references

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