Passive wireless multi-parameter LC sensing system for in situ health monitoring of bearings

被引:0
|
作者
Wang, Lifeng [1 ]
Zhang, Shangyang [1 ]
Dong, Lei [1 ]
Huang, Qiang-An [1 ]
机构
[1] Southeast Univ, Key Lab MEMS, Minist Educ, Nanjing 210096, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
LC Sensor; Passive Wireless; Multi-parameter Sensing; Health Monitoring of Bearings; TEMPERATURE SENSOR; PRESSURE;
D O I
10.1016/j.sna.2024.115934
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The health condition of bearings is crucial for the safe operation of equipment. In situ, multi-parameter monitoring of the rotating components of bearings facilitates accurate assessment and diagnosis of bearing health. Based on the previous research on LC (Inductor-Capacitor) strain sensor for bearings, a passive wireless multiparameter LC sensor suitable for in situ monitoring of bearings is proposed. The LC sensor uses dual resonance frequencies together with one quality factor to simultaneously monitor three parameters of bearing. Theoretical derivation and simulation analysis indicate that, due to the adoption of a symmetrical circuit structure, the two resonant frequencies of the LC sensor are independent and do not interfere with each other. Furthermore, the asymmetric analysis shows that under significant parameter asymmetry, the two resonant frequencies still maintain excellent independence. According to the installation position of the bearing, the sensor coil and the sensor circuit are designed to be conformal to the bearing. The acceleration, strain and temperature response curves of the LC sensor are measured by installing it on a circular steel disc that simulates the environment of a bearing. Finally, the LC sensor is successfully demonstrated on a bearing test platform.
引用
收藏
页数:8
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