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USED OIL DEGRADATION DETECTION SENSOR DEVELOPMENT

机译：二手油污检测传感器的开发

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This paper introduces an on-line condition monitoring of lubricant degradation for oil-lubricated machinery. The system detects the relative variation of lubricant degradation i.e., physical/chemical properties, generated wear particles and ingested contaminants, by using the grid capacitance sensor in an on-line installation. The system consists of grid sensing unit and a multitude of small holes (up to 2mm. in diameter) between the sensing grids. The oil enters in the top part and flows through the holes and exits at the bottom. In addition, the sensor can also detect large size "metal" particles i.e., ≥ 1000 μm whereas the component being monitored approaches catastrophic failure which cannot be detected by the conventional on-line "Ferrous Debris Monitoring Sensor" such as the Magnetic Chip Detector (MCD). In addition, the system can also be used to distinguish the relative variation of the dielectric constant of lubricant caused by contaminants such as water, fuel dilution, etc.
机译：本文介绍了用于油润滑机械的润滑剂降解的在线状态监测。该系统通过在在线安装中使用电网电容传感器来检测润滑剂降解的相对变化，即物理/化学特性，产生的磨损颗粒和摄入的污染物。该系统由网格传感单元和传感网格之间的多个小孔（直径最大为2mm）组成。油进入顶部并流过孔，然后从底部排出。此外，该传感器还可以检测到大尺寸的“金属”颗粒，即≥1000μm，而被监视的组件将发生灾难性故障，而常规的在线“铁屑监测传感器”（例如，磁屑检测器）则无法检测到该故障（ MCD）。此外，该系统还可用于区分由水，燃料稀释等污染物引起的润滑剂介电常数的相对变化。

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