The environmental monitoring system is of great significance in marine scientific research and exploration. However, battery-operated sensors in such a system limit its working time and make maintenance difficult. Harvesting water wave energy to power these sensors becomes a promising way to overcome challenges. Herein, a pendulum type hybrid generator to scavenge wave energy and power the hydrophone is presented. The proposed pendulum structure can harvest random water wave energy from arbitrary directions sensitively. The combination of a freely rolling mode triboelectric nanogenerator (TENG) and a magnetic sphere based electromagnetic generator (EMG) provides complementary advantages and harvests wave energy in a wide frequency range. The hybrid generator is demonstrated to drive 177 LEDs and power an electronic device. At a wave driving frequency of 1.4 Hz, the output power of the EMG and TENG is 6.7 mW and 8.01 µW, respectively. A capacitor can be charged to 26 V by the hybridized generator within 200 seconds at the frequency of 1.8 Hz. The new type of hydrophone-based system realizes sustainable wireless sensing of acoustic signals and positioning information and has important application value for long-term synchronous ocean monitoring.

中文翻译：

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摆式混合发电机，用于水波能量收集和基于水听器的无线传感

环境监测系统在海洋科学研究和探索中具有重要意义。然而，在这种系统中，电池供电的传感器限制了其工作时间，并且使维护变得困难。收集水波能量来为这些传感器供电将成为克服挑战的一种有前途的方法。在此，提出了一种摆式混合发电机，用于清除波能并向水听器供电。所提出的摆结构可以灵敏地从任意方向收集随机的水波能量。自由滚动模式摩擦电纳米发电机（TENG）和基于磁球的电磁发电机（EMG）的组合提供了互补的优势，并在很宽的频率范围内收集波能。混合动力发电机可驱动177个LED并为电子设备供电。µ W，分别。混合发电机可以在200秒内以1.8 Hz的频率将电容器充电至26V。这种新型的基于水听器的系统实现了声信号和定位信息的可持续无线传感，对于长期同步海洋监测具有重要的应用价值。