The study of baseline drift in MEMS sonar buoys

IF 5.2 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Pub Date : 2025-06-13 DOI:10.1016/j.measurement.2025.118137

Zhengyu Bai , Guojun Zhang , Yujia Chai , Guochang Liu , Yan Liu , Yuhao Huang , Wenqing Zhang , Li Jia , Yanan Geng , Renxin Wang , Wendong Zhang

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引用次数: 0

Abstract

MEMS sonar buoys are susceptible to motion induced by surface wave excitation, leading to signal distortion and baseline drift. To address this, a coupled motion model between the buoy and surface waves was developed using COMSOL Multiphysics 6.0, with results consistent with theoretical analysis. The output response of the MEMS buoy under vibrations from different directions was simulated, and its sensitivity to vibration direction was analyzed. A damping device comprising two disks connected by multiple elastic ropes was proposed. Transfer function analysis was used to evaluate the impact of key design parameters, revealing superior vibration isolation across frequencies compared to traditional single-disk setups. Experimental validation showed that the proposed design effectively smooths the output signal baseline, achieving an improvement of 18.55 dB at 4 Hz. This study provides a multiphysics-based method for understanding buoy–wave interactions and offers a practical solution to enhance measurement stability. The proposed damping system holds significant promise for improving MEMS sonar buoy performance in complex marine environments.

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MEMS声纳浮标基线漂移研究

MEMS声纳浮标易受表面波激励引起的运动，导致信号失真和基线漂移。为了解决这一问题，利用COMSOL Multiphysics 6.0建立了浮标与面波之间的耦合运动模型，结果与理论分析一致。仿真了MEMS浮标在不同方向振动作用下的输出响应，分析了其对振动方向的敏感性。提出了一种由多个弹性绳索连接的两个圆盘组成的阻尼装置。传递函数分析用于评估关键设计参数的影响，与传统的单盘设置相比，揭示了跨频率的卓越隔振性。实验验证表明，该设计有效地平滑了输出信号基线，在4 Hz时实现了18.55 dB的改进。该研究提供了一种基于多物理场的方法来理解浮标与波浪的相互作用，并为提高测量稳定性提供了实用的解决方案。所提出的阻尼系统对于改善MEMS声纳浮标在复杂海洋环境中的性能具有重要的前景。

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

Measurement 工程技术-工程：综合

CiteScore

10.20

自引率

12.50%

发文量

1589

审稿时长

12.1 months

期刊介绍： Contributions are invited on novel achievements in all fields of measurement and instrumentation science and technology. Authors are encouraged to submit novel material, whose ultimate goal is an advancement in the state of the art of: measurement and metrology fundamentals, sensors, measurement instruments, measurement and estimation techniques, measurement data processing and fusion algorithms, evaluation procedures and methodologies for plants and industrial processes, performance analysis of systems, processes and algorithms, mathematical models for measurement-oriented purposes, distributed measurement systems in a connected world.