Hydrodynamic Sensing Based on Surface-Modified Flexible Nanocomposite Film

A highly sensitive sensor with piezoresistive nanocomposite material assembled in a flexible composite film is designed and tested for hydrodynamic sensing. Within the device, two nanocomposite films with micrometer scale modified small bumps on the surface are arranged together face-to-face by the...

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Published inChinese physics letters Vol. 32; no. 11; pp. 76 - 79
Main Author 束逸 田禾 王哲 赵海明 米文天 李宇星 曹慧文 任天令
Format Journal Article
LanguageEnglish
Published 01.11.2015
Subjects
Detection
Devices
Fluid dynamics
Fluid flow
Fourier analysis
Hydrodynamics
Nanocomposites
Spectra
偶极装置
力传感
复合纳米材料
柔性
水下
纳米复合薄膜
表面改性
输出信号
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/11/114301

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Summary:A highly sensitive sensor with piezoresistive nanocomposite material assembled in a flexible composite film is designed and tested for hydrodynamic sensing. Within the device, two nanocomposite films with micrometer scale modified small bumps on the surface are arranged together face-to-face by the interlocking mechanism. These structures are verified to have full-scale piezoresistive high sensitivities which are very appropriate for underwater sensing. Obvious output signals can be observed from the device subjected to the hydroacoustic dipole （vibrating sphere） with exciting frequency from 10 Hz to 40 Hz. A spectral peak can be seen in the Fourier analysis of the output signal at the corresponding frequency.
Bibliography:11-1959/O4
A highly sensitive sensor with piezoresistive nanocomposite material assembled in a flexible composite film is designed and tested for hydrodynamic sensing. Within the device, two nanocomposite films with micrometer scale modified small bumps on the surface are arranged together face-to-face by the interlocking mechanism. These structures are verified to have full-scale piezoresistive high sensitivities which are very appropriate for underwater sensing. Obvious output signals can be observed from the device subjected to the hydroacoustic dipole （vibrating sphere） with exciting frequency from 10 Hz to 40 Hz. A spectral peak can be seen in the Fourier analysis of the output signal at the corresponding frequency.
SHU Yi, TIAN He,WANG Zhe, ZHAO Hai-Ming,MI Wen-Tian, LI Yu-Xing,CAO Hui-Wen,REN Tian-Ling（ Institute of Microelectronics, Tsinghua University, Beijing 100084）
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/11/114301