Department of Marine Electronic, Communication and Computer Engineering, Mokpo National Maritime University, Mokpo 58628, Republic of Korea.
Sensors (Basel). 2023 Jan 4;23(2):558. doi: 10.3390/s23020558.
In this paper, we present a wireless sensor system (WSS) that integrated an inductive wireless power transfer (I-WPT) module for battery-free real-time monitoring of the status of rotating shaft in ships. Firstly, an optimized I-WPT module for seamless power supply was implemented using multiple Tx and Rx coils, and its power capability of 1.75 W with an efficiency of 75% was achieved. Secondly, as a result of the high-power transfer performance of the implemented I-WPT module, an entire WSS that integrated four sensors was designed on the rotary shaft. Finally, the designed WSS was installed on a small-scale test bench system with a shaft diameter of 200 mm; it was demonstrated that the status of a propulsion shaft could be monitored in real time without a battery.
本文提出了一种无线传感器系统 (WSS),该系统集成了感应式无线功率传输 (I-WPT) 模块,用于对船舶旋转轴的状态进行无电池实时监测。首先,使用多个 Tx 和 Rx 线圈实现了优化的 I-WPT 模块,以实现无缝电源供应,其功率能力为 1.75 W,效率为 75%。其次,由于所实现的 I-WPT 模块的高功率传输性能,在旋转轴上设计了一个集成了四个传感器的完整 WSS。最后,在所设计的 WSS 被安装在一个小型测试台系统上,该系统的轴直径为 200 毫米;实验结果表明,无需电池即可实时监测推进轴的状态。