Power Ultrasonics Group, Instituto de Acústica, CSIC, Madrid, Spain.
Ultrason Sonochem. 2010 Aug;17(6):953-64. doi: 10.1016/j.ultsonch.2009.11.006. Epub 2009 Nov 18.
High-power ultrasonics (HPU) is a green emerging technology that offers a great potential for a wide range of industrial processes. Nevertheless such potential have remained restricted during many years to a limited number of applications which reached commercial development. The possible major problem for extending the range of HPU industrial applications has been the lack of power ultrasonic transducers for large-scale application, adapted to the requirements of each specific problem with high efficiency and power capacity. A new family of HPU transducers with extensive radiators have been recently introduced. It comprises a variety of transducer types designed with the radiators adapted to different specific uses in fluids and multi-phase media. Such transducers implement high power capacity, high efficiency and radiation pattern control. In addition, their design incorporate strategies to eliminate or reduce modal interactions produced at high power as a consequence of their nonlinear behaviour. The introduction of such new transducers has significantly contributed to the development at semi-industrial and industrial level of a number of processes in the food and beverage industry, in environment and in manufacturing. This paper deals with the basic structure and main characteristics of such transducers as well as their performance in the developed application processes.
高功率超声（HPU）是一种绿色的新兴技术，为广泛的工业过程提供了巨大的潜力。然而，多年来，这种潜力一直局限于少数达到商业开发程度的应用。将 HPU 工业应用范围扩大的一个主要问题可能是缺乏适用于每个特定问题的高效率和大功率容量的大型应用的功率超声换能器。最近引入了一种具有广泛辐射器的新型 HPU 换能器家族。它包括各种换能器类型，这些换能器的设计具有适应于在流体和多相介质中不同特定用途的辐射器。这些换能器实现了高功率容量、高效率和辐射模式控制。此外，它们的设计采用了消除或减少由于非线性行为而在高功率下产生的模态相互作用的策略。这种新型换能器的引入极大地促进了食品和饮料工业、环境和制造等领域的一些过程在半工业和工业规模上的发展。本文介绍了这种换能器的基本结构和主要特点，以及它们在开发的应用过程中的性能。
