Design and analysis of a multiple sensor units vector hydrophone

Xiaoyong Zhang; Qingda Xu; Guojun Zhang; Nixing Shen; Zhenzhen Shang; Yu Pei; Junwen Ding; Lansheng Zhang; Renxin Wang; Wendong Zhang

doi:10.1063/1.5044673

AIP Advances (Aug 2018)

Design and analysis of a multiple sensor units vector hydrophone

Xiaoyong Zhang,
Qingda Xu,
Guojun Zhang,
Nixing Shen,
Zhenzhen Shang,
Yu Pei,
Junwen Ding,
Lansheng Zhang,
Renxin Wang,
Wendong Zhang

Affiliations

Xiaoyong Zhang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Qingda Xu: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Guojun Zhang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Nixing Shen: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Zhenzhen Shang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Yu Pei: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Junwen Ding: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Lansheng Zhang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Renxin Wang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China
Wendong Zhang: Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, China

DOI: https://doi.org/10.1063/1.5044673
Journal volume & issue: Vol. 8, no. 8
pp. 085124 – 085124-9

Abstract

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Inspired by the hairy structure of fish neuromast, a multiple sensor units (multi-unit) vector hydrophone is proposed in the paper, which integrates multiple sensor units on one chip according to bionics. Its sensitivity and signal noise ratio (SNR) are theoretically analyzed compared with the hydrophone which has only one sensor unit. In order to verify the correctness of the theory, a 4-unit vector hydrophone has been fabricated. For experiments, the comparative calibration experiment is used to validate the theoretical analysis of sensitivity and fast fourier transform algorithm (FFT) is used to process the experiment data to verify the theoretical analysis of SNR. The results show that the sensitivity of the 4-unit hydrophone is improved by 11.8 dB and the SNR is improved by 1.9 dB on average, which is correlated with the theoretical analysis.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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