Self-Powered Acoustic Sensor Based on Triboelectric Nanogenerator for Smart Monitoring

IF 1.7 4区物理与天体物理

Acoustics Australia Pub Date : 2022-08-05 DOI:10.1007/s40857-022-00275-4

Yingzhe Li, Chaoran Liu, Sanshan Hu, Peng Sun, Lingxing Fang, Serguei Lazarouk, Vladimir Labunov, Weihuang Yang, Dujuan Li, Kai Fan, Gaofeng Wang, Linxi Dong, Lufeng Che

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引用次数: 1

Abstract

Sound as a ubiquitous energy in our surroundings is clean and sustainable, and carries abundant information in a wide frequency bandwidth. However, effectively harvesting and utilizing acoustic energy is still hindered by the limitations such as low energy density of acoustic energy and lack of novel application. In this paper, we successfully present a self-powered acoustic sensor, which is composed of an adjustable spacing structure and sound-driven triboelectric nanogenerator (TENG). The acoustic sensor exhibits excellent electric output properties because of the poriferous electrode structure, ultrathin vibrating membrane as well as high-quality triboelectric materials. The sensor can deliver a maximal output voltage of 6.28 V with the sound frequency of 350 Hz and sound pressure of 110 dB. In addition, the electric output frequency is closely related to the applied acoustic wave and the corresponding directional dependence pattern as a butterfly is highly symmetrical. Our approach presents a cost-effective strategy to develop self-powered acoustic sensor and shows great potentials in home automation, self-powered microphone, sensor network and artificial intelligence.

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基于摩擦电纳米发电机的自供电声传感器用于智能监测

声音作为一种无处不在的能量，在我们的环境中是清洁和可持续的，并且在宽的频率带宽中携带着丰富的信息。然而，由于声能能量密度低、缺乏新颖的应用等限制，有效地收集和利用声能仍然受到阻碍。在本文中，我们成功地提出了一种由可调间距结构和声驱动摩擦电纳米发电机(TENG)组成的自供电声传感器。由于多孔电极结构、超薄振动膜以及高质量的摩擦电材料，该声传感器具有优异的电输出性能。该传感器最大输出电压为6.28 V，声频为350 Hz，声压为110 dB。此外，电输出频率与施加的声波密切相关，并且由于蝴蝶是高度对称的，相应的方向依赖模式。我们的方法为开发自供电声传感器提供了一种具有成本效益的策略，在家庭自动化、自供电麦克风、传感器网络和人工智能方面具有巨大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acoustics Australia ACOUSTICS-

自引率

5.90%

发文量

期刊介绍： Acoustics Australia, the journal of the Australian Acoustical Society, has been publishing high quality research and technical papers in all areas of acoustics since commencement in 1972. The target audience for the journal includes both researchers and practitioners. It aims to publish papers and technical notes that are relevant to current acoustics and of interest to members of the Society. These include but are not limited to: Architectural and Building Acoustics, Environmental Noise, Underwater Acoustics, Engineering Noise and Vibration Control, Occupational Noise Management, Hearing, Musical Acoustics.