油液过流速度对船舶液压油检测精度的影响

发布时间：2018-06-09 22:08

本文选题：颗粒检测 + 流速测量　；参考：《光学精密工程》2016年03期

【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0.02-0.10ml/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]:In order to improve the detection accuracy of the planar inductive microfluidic chip, the relationship between the oil sample overcurrent velocity and the signal amplitude is studied. This paper introduces the detection principle of inductive microfluidic chip, analyzes the influence of oil sample overcurrent velocity on the amplitude of detection signal, and deduces the formula. Then it is verified by the control variable method. Iron particles with the diameter of 80-85 渭 m were selected as the particles to be tested, and the oil overcurrent velocity was set to 0.02-0.10ml/min respectively. The results show that the amplitude of the signal decreases gradually with the increase of the overcurrent velocity of the oil sample, and the maximum amplitude of the detection signal increases 87.5% when the other factors are unchanged and only the oil sample overcurrent velocity is changed. The results show that the experimental results are consistent with the theoretical results, and the amplitude of the detection signal can be increased by reducing the overcurrent velocity of the oil sample. This research has reference value for improving the precision of planar inductance microfluidic chip.
【作者单位】：大连海事大学轮机工程学院;
【基金】：国家自然科学基金资助项目(No.51205034) 中央高校基本科研业务费专项资金(No.3132014332)
【分类号】：U664;U672

【相似文献】