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- W1969714350 abstract "A study of circular piezoelectric micro speakers is presented for applications in the audio frequency range, including values for impedance, admittance, noise figures, transducer gain, and acoustic frequency responses. The micro speakers were modelled based on piezoelectric micro ultrasonic transducer (pMUT) design techniques and principles. In order to reach the audio frequency range, transducer radii were increased to the order of one centimetre, whilst piezoelectric layer thicknesses ranged the order of several μm. The micro actuators presented might be used for a variety of electroacoustic applications including noise control, hearing aids, earphones, sonar, and medical diagnostic ultrasound. This work main contribution is the characterization of the design space and transducer performance as a function of transducer radius, piezoelectric layer thickness, and frequency range, looking towards an optimized fabrication process." @default.
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- W1969714350 date "2012-02-12" @default.
- W1969714350 modified "2023-10-16" @default.
- W1969714350 title "Characterization and Modelling of Circular Piezoelectric Micro Speakers for Audio Acoustic Actuation" @default.
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- W1969714350 doi "https://doi.org/10.5402/2012/635268" @default.
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