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《Journal of Shangluo University》 2008-02
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Numerical Simulation of Concave Focusing Transducer

ZHANG Xiao-li(Hezuo Minorities Teachers′ College,Hezuo,Gansu 747000)  
Aim To explore the ralation of the focal shape and the designed parameters of concave focusing transducer.Methods Using theory of sound pressure in acoustic field,the numerical simulation is used to study transducers.Results The diameter of the concave focusing transducer must be as large,but its focus should be as small as possible.Although the focal region is found to become small with increase of frequency,the problem of attenuation should be considered.Conclusion It is significant to design concave focusing transducer.
【CateGory Index】: TB552
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