Vibration Viscosity Sensor for Engine Oil Monitoring Using Metal Matrix Piezoelectric Composite
Vibration Viscosity Sensor for Engine Oil Monitoring Using Metal Matrix Piezoelectric Composite
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DOI：
10.3390/ma12203415
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发表时间：
2019-10
期刊：
影响因子：
3.4
通讯作者：
T. Yanaseko;Hiroshi Sato;I. Kuboki;K. Mossi;H. Asanuma
中科院分区：
文献类型：
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作者：
T. Yanaseko;Hiroshi Sato;I. Kuboki;K. Mossi;H. Asanuma
润滑剂如发动机油在防止机器磨损和损坏方面起着重要作用。监测润滑油的劣化是机器维护中的一个重要技术问题。在这项研究中，发动机油粘度监测传感器的开发使用金属芯压电纤维/铝复合材料。这种复合材料是一种由金属基体增强的压电陶瓷;预计将在发动机内部等恶劣环境中使用。采用主动式测量方法来监测作为模型液体的甘油溶液的粘度的变化。在该方法中，通过测量阻尼振动振幅和共振频率的变化，将自生振动与液体的粘度相关联。结果表明，振动具有较高的灵敏度的液体粘度;此外，它被观察到的共振频率的偏移与更宽的范围内的可测量的粘度。这两个测量参数表明，金属芯压电纤维/铝复合材料是一个可行的传感器发动机油监测。
Lubricants such as engine oil play an important role in preventing machine wear and damage. Monitoring the deterioration of lubricating oils is a significant technical issue in machine maintenance. In this study, a sensor for monitoring engine oil viscosity was developed using a metal-core piezoelectric fiber/aluminum composite. This composite is a piezoelectric ceramic that is reinforced by a metal matrix; it is expected to be utilized in harsh environments such as the inside of an engine. An active type measurement method was employed to monitor variations in the viscosity of glycerin solution as a model liquid. In this method, a self-generated vibration is correlated to the viscosity of a liquid by measuring the damped vibration amplitude and the variation in the resonance frequency. The results showed that the vibration had a high sensitivity to the liquid viscosity; further, it was observed that the shift in resonance frequency correlated to a wider range of measurable viscosity. Both measured parameters indicate that the metal-core piezoelectric fiber/aluminum composite is a viable sensor for engine oil monitoring.