Effect of oil velocity on sensitivity of micron metal particle detection by inductive sensor

LIU En-chen; ZHANG Hong-peng; WU Yu; FU Hong-fa; SUN Yu-qing; CHEN Hai-quan

doi:10.3788/OPE.20162403.0533

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Effect of oil velocity on sensitivity of micron metal particle detection by inductive sensor

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Effect of oil velocity on sensitivity of micron metal particle detection by inductive sensor
- Optics and Precision Engineering Vol. 24, Issue 3, Pages: 533-539(2016)
- 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.20162403.0533
  CLC： TB937;TP212.1
- Received：10 September 2015，
  
  Revised：15 October 2015，
  
  Published：25 March 2016
- 稿件说明：
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刘恩辰, 张洪朋, 吴瑜等. 油液过流速度对船舶液压油检测精度的影响[J]. 光学精密工程, 2016,24(3): 533-539

LIU En-chen, ZHANG Hong-peng*, WU Yu etc. Effect of oil velocity on sensitivity of micron metal particle detection by inductive sensor[J]. Editorial Office of Optics and Precision Engineering, 2016,24(3): 533-539
刘恩辰, 张洪朋, 吴瑜等. 油液过流速度对船舶液压油检测精度的影响[J]. 光学精密工程, 2016,24(3): 533-539 DOI： 10.3788/OPE.20162403.0533.

LIU En-chen, ZHANG Hong-peng*, WU Yu etc. Effect of oil velocity on sensitivity of micron metal particle detection by inductive sensor[J]. Editorial Office of Optics and Precision Engineering, 2016,24(3): 533-539 DOI： 10.3788/OPE.20162403.0533.

摘要

为提高平面电感式微流控检测芯片的检测精度

研究了油样过流速度与信号幅值大小的关系。介绍了电感式微流控检测芯片的检测原理

理论分析了油样过流速度对检测信号幅值产生的影响并进行了公式推导

然后采用控制变量法对其进行了实验验证。选用粒径在80-85μm之间的铁颗粒作为待测颗粒

将油样的过流速度分别设定为0.02-0.10 ml/min进行了实验。结果表明

随着油样过流速度的增加

信号幅值逐渐减小

且呈线性关系;在其余因素不变

仅改变油样的过流速度时

检测信号的幅值最大可增大87.5%。研究表明

实验结果与理论推导结论相符

通过减小油样的过流速度可增大检测信号的幅值。该项研究对提高平面电感式微流控检测芯片的精度具有参考价值。

Abstract

To improve the sensitivity of a planar inductive microfluidic chip

the relationship between the oil velocity and the signal amplitude was researched. The working principle of the planar inductive microfluidic chip was introduced

the effect of the oil velocity on the detection signal amplitude was analyzed theoretically and the related formula were derived. Then

the experimental verification was performed by the control variable method. The iron particles with diameters from 80-85μm were used as the samples

the velocity of oil was set from 0.02 ml/min to 0.10 ml/min

an experiment was carried out. The obtained data illustrate that the signal amplitude decreases with the improvement of oil velocity

and the relationship between the oil velocity and signal amplitude is linear after fitting. When other conditions are invariant

the sensitivity has been significantly improved with the velocity decreased

and the maximum can catch about 87.5%.It suggests that the experiment data agree with the theoretical ones well and the signal amplitude can be improved by decreasing the oil velocity. The conclusion is valuable for the sensitivity improvement of microfluidic chips.

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references

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