摘要
目前所用的声波测井仪器采用的单极子声源的指向性均无法进行人工控制,因而声源所发出的能量无明显的指向性。为此,人们引入了雷达技术及无损检测技术中能够对波指向性进行人工控制的相控阵技术。本文推导了相控线阵声波辐射声场中的声压方程,并通过模拟计算对其指向性影响因素进行了分析,得出了各因素对指向性的影响规律为声波测井工程实践中使用相控线阵技术提供理论依据。
The directivity of monopole sources in currently used acoustic logging tools is unable to control manually. So people introduce the phased array technology which is used in radar technology and nondestructive testing technology to realize manual control of wave direction. This paper derived sound pressure equation of phased array acoustic radiation field and examines the impact factors through its simulation. It provides a theoretical basis for using phased array technology in acoustic logging engineering practice.
出处
《石油工业计算机应用》
2012年第3期25-28,3,共4页
Computer Applications Of Petroleum
关键词
相控线阵
指向性
声波辐射
phased array
directivity
acoustic radioactivity
