摘要
研制的超声相控阵实验系统采用数字方式控制各阵元的超声发射延时,能够得到很高的精度和稳定性。阐明该系统各阵元间的发射同步这一重要环节的实现方法。该方法对于规模不太复杂的相控阵系统具有足够的精度,并对于更大规模相控阵系统的同步提出了初步设想。
The experimental ultrasonic phased array system developed was described , in which the ultrasound transmission phase of each element was controlled digitally , and high accuracy and stability were obtained. The realization of the significant transmission synchronization of elements was described. The synchronization method adopted was accurate enough for moderate-scale ultrasonic phased array system. A primary scheme was proposed for the synchronization of larger-scale one.
出处
《微计算机信息》
北大核心
2007年第20期182-183,共2页
Control & Automation
基金
国防重点试验基金(编号不公开)
关键词
超声检测
相位控制
CPLD
同步
Ultrasonic testing,Phase control, Complex Programmable Logic Device（CPLD）, Synchronization
