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自动供电和速度调节的传感器用于基于 triboelectric纳米发电机的深海海流测量

Yuan Chao Pan^1,2, Zhuhang Dai¹, Haoxiang Ma¹

¹Institute of Deep-Sea Science and Engineering, Chinese Academy of Sciences, Sanya, China.

Nature communications

|July 20, 2024

概括

研究人员使用 triboelectric 纳米发电机开发了一种自动供电的深海电流计. 这种创新的传感器在极深处运行,为海洋电流监测提供了更高的灵敏度和更广泛的测量范围.

科学领域:

海洋学海洋学海洋学
材料科学材料科学材料科学
传感器技术传感器技术

背景情况:

深海研究依赖于精确的海洋电流监测.
现有的电流表面临限制:电源依赖性,低压电阻和狭窄的测量范围.
对于深的环境,需要强大的,自动供电的传感器.

研究的目的:

开发一个完全集成的,自动供电的,高度灵敏的深海电流测量系统.
为了克服当前最先进的深海电流计的局限性.
为了证明在极端深海条件下基于 triboelectric nanogenerator (TENG) 的传感器的可行性.

主要方法:

使用超灵敏的 triboelectric 纳米发电机 (TENG) 来收集海洋电流的能量,用于自动供电的传感.
采用了非常规的磁合结构,以承受高水静压 (>45 MPa).
整合了可变间隔结构以扩大测量范围.

主要成果:

实现了微小电流运动的自动驱动感应,速度低至0.02m/s.
证明了系统在超过45MPa的水静压下具有弹性.
将测量范围扩展到0.026.69 m/s,比商业替代品改进了67%.
在南海4531米的创纪录深度成功运行了该系统.

结论:

开发的系统为深海海洋电流监测提供了一个可持续的解决方案.
基于Triboelectric纳米发电机的传感器显示了深海应用的重大前景.
该技术使得在深海环境中能够监测更高的时空分辨率.

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