A coral-inspired and fully self-powered wave monitoring system based on hybridized triboelectric-electromagnetic nanogenerator

The need for effective ocean monitoring in the marine environment presents a meaningful and challenging research direction to develop multi-directional, self-powered, and environmentally friendly sensors. This study presents a self-powered coral-inspired sensing (SPCS) system for real-time ocean wav...

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Bibliographic Details
Published inSensors and actuators. A. Physical. Vol. 387; p. 116451
Main Authors Wang, Tianrun, Guo, Zinan, Jin, Hao, Li, Yuanzheng, Liu, Bo, Liu, Jianhua, Xu, Gengchen, Xu, Peng, Xu, Minyi
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.06.2025
Subjects
Energy harvesting
Ocean wave monitoring
Self-powered sensing
Triboelectric nanogenerator
Triboelectric nanogenerator
Self-powered sensing
Energy harvesting
Ocean wave monitoring
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Summary:The need for effective ocean monitoring in the marine environment presents a meaningful and challenging research direction to develop multi-directional, self-powered, and environmentally friendly sensors. This study presents a self-powered coral-inspired sensing (SPCS) system for real-time ocean wave monitoring. The SPCS integrates a triboelectric nanogenerator, a small electromagnetic generator (EMG)-based wave energy harvesting, and biomimetic structures to harvest mechanical energy from ocean waves, enabling autonomous operation without an external power source. The system demonstrates high sensitivity to wave height, frequency, and multi-directional sensing. Specifically, the SPCS accurately detects wave heights ranging from 25 mm to 125 mm, exhibiting a linear voltage increase with a correlation coefficient of 0.95. The EMG-based wave energy harvesting generates approximately 3 mW of power under typical wave conditions, sufficient to sustain the system's wireless transmission module. Thus, the SPCS offers a promising solution for long-term, remote wave monitoring in marine environments, offshore platforms, and oceanographic research. [Display omitted] •Designed a self-powered coral-inspired sensor for real-time ocean wave monitoring.•Achieved millimeter-level wave height detection with high accuracy.•Enabled multi-directional sensing for wave height, frequency, and direction analysis.•Integrated TENG and EMG for sustainable energy harvesting in marine environments.
ISSN:0924-4247
DOI:10.1016/j.sna.2025.116451