High Intensity Ultrasonic Transducers for Gas Media (original) (raw)
2007, Electron Devices and …
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The extension of the high-power applications of sonic and ultrasonic energy in industrial processing requires the development of efficient and powerful transducers. Years ago some of the authors of the present paper proposed a new concept of ultrasonic transducer for use in fluids (more specifically in gases) based on a stepped-plate radiator. This concept was successfully applied to the design and development of a series of circular plate transducers of small and medium power capacities (lower than 1 kW) and radiating surfaces smaller than 0.5 m 2. Nevertheless, the scale of a great part of industrial applications requires higher powers and larger radiating surfaces. Looking for such applications (i.e. fume precipitation, defoaming, drying and dewatering, etc.) we have designed and developed an industrial model of transducer with a rectangular plate radiator of double-stepped profile. The design of the new model was made with the help of the finite element method (FEM) and the acou...
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