用剪切水平表面声波传感器测量油中颗粒

2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering Pub Date : 2017-07-24 DOI:10.1109/QIR.2017.8168452

Saya Kobayashi, J. Kondoh

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引用次数: 0

摘要

采用剪切水平表面声波(SH-SAW)装置作为液体环境的传感器。由于SH-SAW的主要粒子位移在传播面上平行，在传播方向上垂直，因此SH-SAW的能量不会辐射到液体中。因此，SH-SAW适用于液体测量。本文用SH-SAW对油中的颗粒进行了测量。实验结果表明，随着铁颗粒加入量的增加，速度和衰减变化增大。得到的速度变化可以用质量加载的微扰理论定性地解释，而衰减变化不能解释。因此，有必要发展油环境下颗粒加载的新理论。

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Measurement of particles in oil using shear horizontal surface acoustic wave sensor

A shear horizontal surface acoustic wave (SH-SAW) device is used as a sensor for the liquid environment. As a main particle displacement of the SH-SAW is parallel in the propagation surface and perpendicular in the propagation direction, the SH-SAW does not radiate its energy into the liquid. Therefore, SH-SAW is suitable for the liquid measurement. In this paper, particles in oil are measured by using the SH-SAW. The experimental results show that the velocity and attenuation changes increase with increasing the amount of the iron particles. Whereas the velocity change obtained is qualitatively explained by the perturbation theory for the mass loading, the attenuation change cannot be explained. Therefore, it is necessary to develop the new theory for particle loading in oil environment.

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2017 15th International Conference on Quality in Research (QiR) : International Symposium on Electrical and Computer Engineering

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