Earth Sciences

Self-powered and speed-adjustable sensor for abyssal ocean current measurements based on triboelectric nanogenerators

Y. C. Pan, Z. Dai, et al.

This groundbreaking research by Yuan Chao Pan and colleagues presents a self-powered, ultra-sensitive deep-sea current measurement system that could revolutionize ocean monitoring. Utilizing a triboelectric nanogenerator, this innovative technology operates at depths of over 4500 meters, detecting currents as low as 0.02 m/s, showcasing unparalleled pressure resistance and a broad measurement range.

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Abstract

Monitoring abyssal ocean currents is crucial for deep-sea research. Existing current meters have limitations including power supply needs, low pressure resistance, and narrow measurement ranges. This paper introduces a self-powered, highly sensitive deep-sea current measurement system using a triboelectric nanogenerator (TENG) to harvest energy and sense currents as low as 0.02 m/s. A magnetic coupling structure ensures high pressure resistance (exceeding 45 MPa), and a variable-spacing structure broadens the measurement range (0.02–6.69 m/s). Successful operation at 4531 m in the South China Sea demonstrates the potential for sustainable, high-resolution ocean current monitoring.

Publisher

Nature Communications

Published On

Jul 20, 2024

Authors

Yuan Chao Pan, Zhuhang Dai, Haoxiang Ma, Jinrong Zheng, Jing Leng, Chao Xie, Yapeng Yuan, Wencai Yang, Yaxiaer Yalikun, Xuemei Song, Chang Bao Han, Chenjing Shang, Yang Yang

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