用于超声针灸的声换能器设计  

Design of Ultrasound Transducer for Ultrasonic Acupuncture

作　　者：陈伟[1] 王华[1] 曾德平[1] 刘冬[1] 周慧婷[1] 廖长义[1] 

机构地区：[1]重庆医科大学生物医学工程系省部共建超声医学工程国家重点实验室超声医学工程重庆市市级重点实验室,重庆400016

出　　处：《世界科技研究与发展》2011年第1期21-24,32,共5页World Sci-Tech R&D

基　　金：国家自然科学基金重点项目(30830040)

摘　　要：超声针灸作为一门新兴的针灸手段,其关键之处则在于声换能器的能量输出能否分布在一个较均匀的范围内,以实现对穴位的有效刺击。为了使得超声换能器的能量输出能够达到超声针灸所需要的能量输出模式,本研究通过分环组合的方法,分别对超声换能器的各个组成单元施加不同的聚焦半径和面积,并利用计算机仿真了多种不同的组合模式,最终使得超声换能器的焦域较长并且能量分布均匀。这种分环组合的方法能够对超声换能器的能量输出实现较有效的调控,通过分环的方法所设计的超声换能器能够很好的满足超声针灸的需要。Ultrasonic acupuncture as a new way of traditional acupuncture,the energy output distribution of ultrasound transducers is the key to it. In order to make the energy output distribution meet the need of ultrasonic acupuncture, a new method of design ultrasound transducer is presented, with which the transducer is divided into two elements and the different focus radius and areas are imposed to the combination transducers. The computer simulation is also used in this design way. At last the focus region and energy distribution are both under control effectively. The energy output of the transducer is controlled effectively by this method. The need of ultrasonic acupuncture is satisfied by the transducer.

关 键 词：超声针灸 声换能器 声焦域 水听器 

分 类 号：O426.9[理学—声学]