陈仁松,何彬,李如松.一种大功率超声波发声系统原理与结构设计[J].声学技术,2009,(6):747~751 |
一种大功率超声波发声系统原理与结构设计 |
Principle and structural design of a kind of high-power ultrasonic generating system |
投稿时间:2008-03-17 修订日期:2008-07-16 |
DOI: |
中文关键词: 哈特曼超声波发生器 大功率超声 声波导管 |
英文关键词: Hartmann ultrasonic generator high-power ultrasonic sound waveguide |
基金项目:国家“863计划”课题(编号2005AA000200) |
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中文摘要: |
设计了能发射大功率超声波的超声波发声系统。该超声波发声系统采用火药燃烧(炸药爆轰)的方式产生高压高速气流;高速气流驱动哈特曼超声波发生器阵列产生大功率超声。超声波发声系统采用波导管对产生的超声波进行汇聚,在一定方向上发射,可以有效提高超声波的作用距离。单个超声波发声系统产生20kHz的超声,声功率可以达到百万瓦,最大有效作用距离可达54m。设计的大功率超声波发声系统完全可以达到作战要求。 |
英文摘要: |
A kind of ultrasonic system is designed for generating high-power ultrasonic wave.The powder combustion or explosive detonation is used to produce high-pressure and high-velocity gas flow,which drives the Hartmann ultrasonic generator to produce high-power ultrasonic wave.The ultrasonic generation system uses sound waveguide to focus the ultrasonic wave to a certain direction for effectively increasing the action range.Only a single ultrasonic system can produce the megawatt power of 20 kHz ultrasound and the effective action range is up to 54m.The high-power ultrasonic system designed can completely meet the operational need. |
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