Triboelectric nanogenerators as self-powered acceleration sensor under high-g impact

被引：65

作者：

Dai, Keren ^{[1
,2
,3
]}

Wang, Xiaofeng ^{[1
,2
,3
]}

Yi, Fang ^{[4
]}

Jiang, Cheng ^{[1
,2
,3
]}

Li, Rong ^{[5
]}

You, Zheng ^{[1
,2
,3
]}

机构：

[1] Tsinghua Univ, Dept Precis Instrument, Beijing 100084, Peoples R China

[2] State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Ctr Flexible Elect Technol, Beijing 100084, Peoples R China

[4] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[5] Xian Inst Electromech Informat Technol, Xian 710065, Shaanxi, Peoples R China

来源：

NANO ENERGY | 2018年 / 45卷

关键词：

High-g acceleration sensor; Triboelectric nanogenerator; Self-powered; Micromachining; HIGH-G ACCELEROMETER; ENERGY; FABRICATION; SIMULATION;

D O I：

10.1016/j.nanoen.2017.12.022

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the field of automobiles and many other industries, there is an urgent demand for the sensing of high-g acceleration. In this paper, a self-powered high-g acceleration sensor based on a triboelectric nanogenerator is proposed for the first time. It is micro-fabricated with a total volume of 14x14x8 mm(3), and its sensing ability is confirmed via a Machete hammer experiment, with a measurement range of up to 1.8 x 10(4)g, a sensitivity of 1.8 mV/g, and a Pearson correlation coefficient of 0.99959. In addition, the output signal of this novel acceleration sensor has few clutters, which is beneficial for recognition and subsequent signal processing. The effects of the aluminum-electrode thickness on the sensitivity and linearity of the sensor are investigated via modeling, theoretical analysis, and experiment, providing a reliable basis for the parameter optimization of the structural design. Experiment results indicate that this novel acceleration sensor covers a wide measurement range and meets the urgent needs of monitoring various high-g impacts for military equipment and automobiles.

引用

页码：84 / 93

页数：10

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