Modeling and Experiment of a Small Size Dual Mode Transducer for Underwater Acoustic Communication and Detection
Generally the transducer mainly operates the radial vibration at lower frequency for underwater acoustic communication and the thickness vibration at higher frequency for underwater acoustic detection. This work proposes a new construction of a small size dual mode transducer applied for achieving underwater acoustic communication and detection together. A new type of small size dual mode transducer is developed for underwater acoustic communication and detection. The transducer is radially composited by piezoelectric stack and metal tube, and longitudinally by front plate, piezoelectric stack and back metal plate. The models of the radial vibration and thickness vibration are studied respectively using one-dimensional vibration theory. The electro-mechanical equivalent circuits and the resonance frequencies of the transducer are obtained. The vibration mode and radiation sound field of the transducer are also analyzed by finite element method. The real transducer is manufactured, and its vibration characteristic is tested. The results showed that the measured resonance frequencies are well consistent with the theoretical results.
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Document Type: Research Article
Publication date: November 1, 2018
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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