Design and Application of a High-throughput Wear Particle Image Online Monitoring Sensor
This paper presents the design and development of a high-throughput wear particle image online monitoring sensor for experimental teaching.The sensor consists of an electromagnet capable of generating a ring-shaped magnetic field,an annular flow channel,and an imaging module containing two CMOS sensors.It enables the imaging and monitoring of the macroscopic characteristics(concentration)and microscopic characteristics(size,size distribution,shape)of wear particles at a high-throughput rate of 100 mL/min.Based on this sensor,a full lifecycle wear fault monitoring experiment of the gearbox is conducted,along with an analysis of typical case studies for experimental teaching.During the experiment,both macroscopic and microscopic features detected by the sensor are comprehensively utilized to assess the wear condition of the gearbox.Knowledge of wear mechanisms is applied to actual fault monitoring,enhancing students'ability to analyze and solve problems in complex engineering contexts.This provides strong support for cultivating professionals with practical and innovative abilities.