THE ANALYSIS OF WAVES PROPAGATION IN STRUCTURES UTILIZES IN DESIGN AND CONSTRUCTION OF ULTRASOUND GENERATING TRANSDUCERS

Grigore Liviu ODOBESCU

Abstract


The high energy ultrasound it is generated by piezoelectric elements which are excited from electric signal obtained from an electronic generator. The transmission of this high energy it is obtained by transmission element or concentrator element in function of what we want to do with this energy especial in no conventional technology. The efficiency work is a very important aspect because the energy utilizes has high values. In this paper it is presented a method to calculate the elements components necessary to generate and transmission the high ultrasound energy: piezoelectric transducers and transmission / concentrator elements. Are presented the experimental results obtained with the theory presented. Original contribution consists by method used and suggestive graphics for appreciation of variations parameters. 

Key words: piezoelectric transducer, ultrasound power, dimension design

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References


Odobescu G.., Rugina I., Lala C. “Metode de creştere a eficienţei sistemelor acustice de mare putere.” Sesiunea de comunicǎri ştiinţifice – Comisia de Acustica – Academia Romanǎ Bucureşti, 12-13 octombrie 2000, pp. 31-36

Odobescu G.., Lala C. “The comparative study about energetic efficiency for miscellaneous types of adaptation schemes generator-piezoelectric transducers”, The Annual Symposium of the Institute of Solid Mechanics, SISOM 2002, (16-17) May, Bucharest 2002, pp 183-188

Odobescu G.. “The propagation study of ultrasound high intensity waves through resonance bodies transformation with a new adaptation scheme with acoustic charge”, First Conference of the Romanian Acoustical Society, October 15-17, 2001, Bucharest , Romania, pp 175-182

Odobescu G.. “The propagation study of ultrasound high intensity waves through resonance bodies transformation/adaptation with acoustic charge”, The 17th International Congress on Acoustic, September 2-7 2001, Rome, Italy, abstract ID 1522, Oral session on 7A.02.07 “ Nonlinear acoustic”, Book of Abstracts-pp 351; Scientific programme-pp89, abstract-pp 71


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