大功率多激励源压电陶瓷超声换能器的研究

项目名称： 大功率多激励源压电陶瓷超声换能器的研究

项目编号： No.11304207

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 梁召峰

作者单位： 深圳职业技术学院

项目金额： 30万元

中文摘要： 作为解决众多功率超声处理新技术工业化应用的一种有效方案，介入式超声处理系统受到了人们的广泛关注。目前已有的介入式超声处理系统大多采用传统的纵向振动夹心式压电陶瓷超声换能器作为声源，其较低的功率容量限制了这些介入式超声处理系统在工业中的大规模应用。为满足工程中对大功率容量纵向振动超声换能器的迫切需求，本项目拟对一种新型的大功率多激励源压电陶瓷超声换能器进行系统研究。主要内容包括：研究这种换能器的设计理论；探讨多激励源压电陶瓷超声换能器的结构、材料及负载与其性能参数之间的依赖关系；研究能满足实际工程需要的大功率多激励源压电陶瓷超声换能器的多目标优化设计方法；研究多激励源压电陶瓷超声换能器在不同工作状态下的温度特性及非线性行为特性等。本项目的研究将为研制稳定可靠的大功率多激励源压电陶瓷超声换能器提供理论基础、实验依据及技术支撑。

中文关键词： 超声换能器；压电陶瓷；多激励源；功率容量；工作特性

英文摘要： As an effective solution for industrial applications of many new ultrasonic processing technology, the intervention-type ultrasound processing system has attracted extensive attentions. At present, the traditional longitudinal-vibration sandwich piezoceramic ultrasonic transducers are adopted mostly as sound sources of the existing intervention-type ultrasound processing systems, and the lower power capacity of the traditional piezoceramic transducer limits the large-scale applications of these intervention-type ultrasonic processing systems in industry. In order to meet the urgent demand for the longitudinal vibration ultrasonic transducer with high power capacity, a new-style high-power ultrasonic transducer with multiple sets of piezoceramic elements will be thoroughly studied in this project.The main research contents include the design theory of this transducer, the dependencies between its structure, material and load and its performance parameters, the multi-objective optimization design method of this transducer considering more practical engineering requirements, and the temperature characteristic and nonlinear behavior characteristic of this transducer in different working conditions. These research works will provide the theoretical basis, experimental evidence and technical support for manufacture t

英文关键词： ultrasonic transducer；piezoceramic；multiple exciting sources；power capacity；operating characteristics