State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
School of Engineering, University of East Anglia, Norwich NR4 7TJ, UK.
Sensors (Basel). 2021 Nov 13;21(22):7556. doi: 10.3390/s21227556.
Lubricants are of key importance for mechanical processing, and exist in nearly every mechanical system. When the equipment is in operation, debris particles will be generated in mechanical lubricants. The detection of debris particles can indicate the wear degree of machinery components, and provide prognosis warning for the system before the fault occurs. In this work, a novel type of inductive debris sensor consisting of two excitation coils and two sensing coils is proposed for online debris monitoring. The developed sensor was proven to be of high sensitivity through experimental verification. The testing results show that, using the designed sensor, ferrous metal debris with a size of 115 μm and nonferrous metal debris with a size of 313 μm in a pipe with an inner diameter of 12.7 mm can be effectively detected. Moreover, the proposed inductive debris sensor structure has better sensitivity at higher throughput and its design provides a useful insight into the development of high-quality sensors with superior performances.
润滑剂对机械加工至关重要，几乎存在于每一个机械系统中。当设备运行时，机械润滑剂中会产生碎屑颗粒。碎屑颗粒的检测可以表明机械部件的磨损程度，并在系统发生故障之前为其提供预后警告。在这项工作中，提出了一种由两个激励线圈和两个感应线圈组成的新型电感式碎屑传感器，用于在线碎屑监测。通过实验验证证明，所开发的传感器具有很高的灵敏度。测试结果表明，使用设计的传感器，可以有效检测内径为 12.7mm 的管道内尺寸为 115μm 的铁屑和尺寸为 313μm 的非铁屑。此外，所提出的电感式碎屑传感器结构在更高的吞吐量下具有更好的灵敏度，其设计为开发具有优异性能的高质量传感器提供了有益的见解。
