Design and implementation of a jellyfish otolith-inspired MEMS vector hydrophone for low-frequency detection [PDF]
Microsystems & Nanoengineering, 2021 Detecting submarines via biomimicry Jellyfish sensory organs offer the inspiration for a new sensor design that can sensitively detect low-frequency sounds underwater.
Renxin Wang +8 more
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High-performance co-oscillating electrochemical vector hydrophone based on integrated microelectrodes with microgrooves [PDF]
Microsystems & NanoengineeringThis paper reports a high performance co-oscillating electrochemical vector hydrophone based on integrated microelectrodes with microgrooves. Through theoretical and simulation analysis, the influence of key parameters such as the spacing between anode ...
Honghao Zhang +10 more
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Optical Vibration Sensing Bionic Vector Hydrophone Based on Mechanically Coupled Structure [PDF]
MicromachinesVector hydrophones play an extremely important role in marine exploration. How to reduce the size of vector hydrophones while improving their directional detection capability is a critical issue that needs to be addressed.
Jinying Zhang +8 more
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High-Sensitivity Piezoelectric MEMS Accelerometer for Vector Hydrophones
Micromachines, 2023 In response to the growing demand for high-sensitivity accelerometers in vector hydrophones, a piezoelectric MEMS accelerometer (PMA) was proposed, which has a four-cantilever beam integrated inertial mass unit structure, with the advantages of being ...
Shuzheng Shi +7 more
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Design and Implementation of a Four-Unit Array Piezoelectric Bionic MEMS Vector Hydrophone [PDF]
MicromachinesHigh-performance vector hydrophones have been gaining attention for underwater target-monitoring applications. Nevertheless, there exists the mutual constraint between sensitivity and bandwidth of a single hydrophone.
Shuzheng Shi +7 more
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Sound-focusing package for MEMS vector hydrophone [PDF]
Microsystems & NanoengineeringTo address the challenge of acoustic wave attenuation in traditional Micro-Electro-Mechanical Systems (MEMS) vector hydrophone packaging, this study proposes a sound-focusing package with tapered apertures (TA) and a nylon sound-focusing cap (NSC ...
Zhiyuan Cheng +6 more
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Research on DOA Estimation Based on Acoustic Energy Flux Detection Using a Single MEMS Vector Hydrophone [PDF]
Micromachines, 2021 The principle of acoustic energy flux detection method using a single micro electromechanical system (MEMS) vector hydrophone is analyzed in this paper.
Xiaoyong Zhang +6 more
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High-Resolution Azimuth Estimation Method Based on a Pressure-Gradient MEMS Vector Hydrophone [PDF]
MicromachinesThe pressure-gradient Micro-Electro-Mechanical Systems (MEMS) vector hydrophone is a novel type of sensor capable of simultaneously acquiring both scalar and vectorial information within an acoustic field. Conventional azimuth estimation methods struggle
Xiao Chen, Ying Zhang, Yujie Chen
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A Data Fusion Orientation Algorithm Based on the Weighted Histogram Statistics for Vector Hydrophone Vertical Array [PDF]
Sensors, 2020 In this paper, we propose a data fusion algorithm based on the weighted histogram statistics (DF-WHS) to improve the performance of direction-of-arrival (DOA) estimation for the vector hydrophone vertical array (VHVA).
Yan Liang +5 more
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Widely Linear Adaptive Instantaneous Frequency Estimation in Vector Hydrophones [PDF]
Sensors, 2018 To solve the problem that the time-frequency resolution of Short-Time Fourier Transform (STFT) is constrained by the window length and the moving step of the short time window, and to utilize the merits of a widely linear method, a novel instantaneous ...
Panpan Peng, Liang An
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