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2009•Applied AcousticsRequires access

A transducer with large directivity and high transmitting sensitivity

Lei Qin, Wang Li

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Abstract

Transducer with large directivity and high transmitting sensitivity is designed and fabricated.It is a sandwich transducer with composite horn.On using the FEM method and the model of sandwich transducer,the frequency,the transmitting sensitivity and the directivity are simulated.The computation of models agree with the experimental.The maximum transmitting voltage response level of a sandwich transducer is 156dB(1V/μPa) and the directivity is up to 100°(-3dB) at the resonance frequency of 75.6kHz.

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What this paper is about

Transducer with large directivity and high transmitting sensitivity is designed and fabricated.It is a sandwich transducer with composite horn.On using the FEM method and the model of sandwich transducer,the frequency,the transmitting sensitivity and the directivity are simulated.The computation of models agree with the experimental.The maximum transmitting voltage response level of a sandwich transducer is 156dB(1V/μPa) and the directivity is up to 100°(-3dB) at the resonance frequency of 75.6kHz.

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Available abstract

Transducer with large directivity and high transmitting sensitivity is designed and fabricated.It is a sandwich transducer with composite horn.On using the FEM method and the model of sandwich transducer,the frequency,the transmitting sensitivity and the directivity are simulated.The computation of models agree with the experimental.The maximum transmitting voltage response level of a sandwich transducer is 156dB(1V/μPa) and the directivity is up to 100°(-3dB) at the resonance frequency of 75.6kHz.

Key concepts: Directivity, Transducer, Acoustics, Sensitivity (control systems), French horn, Materials science, Finite element method, Engineering

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