固体药柱的超声特征扫描成像检测  

Ultrasonic feature scan imaging detection system for solid rocket grain

作　　者：陆铭慧[1] 王海芳[1] 陈以方[1] 

机构地区：[1]清华大学机械工程系

出　　处：《固体火箭技术》2007年第5期459-462,共4页Journal of Solid Rocket Technology

摘　　要：研究了固体火箭发动机药柱的声传播特性。介绍了超声特征扫描成像方法的原理、扫描系统的设计。采用研制的低频组合探头,提高了声波在粘弹介质中的穿透能力。试验表明,设计的超声特征扫描系统可采用幅度成像、深度成像成功检测药柱的缺陷。The characteristics of ultrasonic propagation in the solid rocket propellant were investigated. The principle and design of ultrasonic feature scan imaging system were introduced. The penetrating capability of ultrasonic wave in viscoelastic medium was improved by using low frequency transducers. The experimental results show that ultrasonic feature scan imaging system can successfully be used for detecting defects of grain by means of amplitude imaging and depth imaging.

关 键 词：固体药柱 粘弹介质 超声检测 特征扫描成像 

分 类 号：TB553[理学—物理]