摘要
论文就超声波无损检测技术在海底沉积物声学特性测量上的应用,介绍了其所需的必要设备、样品采集和测量基本原理。探讨了沉积物超声无损测量的资料处理与分析方法及其内容,主要包括声速、声衰减、声阻抗和声速比等声学特性计算;声速与孔隙度、平均粒径和粘土含量等物理力学参数的统计相关性研究。
In this paper, apparatus, sampling and measuring theory have been introduced for nondestructive ultrasonic testing technology on measurement of marine sediment. Data processing and analysis method has been discussed, including mathematical method for calculating the sound velocity, attenuation coefficient, acoustic impedance and ratio of sound velocity, and statistical analysis and correlation of sound velocity versus porosity, mean grain size and clay content.
出处
《海洋技术》
2007年第4期40-43,共4页
Ocean Technology
基金
国家自然科学基金(NSFC49906004)
国家海洋局青年基金(2007315)
国家"863"计划资助项目(2002AA615130)
关键词
超声
无损检测
海底沉积物
ultrasonic
nondestructive testing
marine sediment
