摘要
超小型手持式的多通道阵列系统是集成度非常高的超声检测系统,该系统主要优势是体积较小,检测方便等。针对超小型手持式多通道阵列系统设计,搭建了64通道的超声检测系统,而64通道的超声检测系统设计结果为延时精度5 ns和采样频率100 MHz,系统的带宽为0.02~25 MHz,系统体积为40×70×90 mm^(3);通过延时精度和同步采样实验以及最后的缺陷检测与导波成像实验,结果表明该系统设计的可行,对于扩展成更多通道的医学超声检测系统,该系统仍可以满足且体积不会增加太多,在同类型仪器中体积较小。
Ultra-small hand-held multi-channel ultrasonic system is a highly integrated system.This system has some advantages in nondestructive testing.Such as the size of the system is small,the detection with the system is convenient and so on.As for the design of this system,the 64-channel ultrasonic detection system in this paper is established.The consequence of ultrasonic detection system design is delay precision as 5 ns,sampling frequency as 100 MHz,bandwidth as 0.02~25 MHz,volume as 40×70×90 mm^(3).According to the results of the delay precision experiment,Synchronous sampling experiment,defect detection experiment and guided wave imaging experiment,the design dose work.The system can expand to more channels for application to medical ultrasonic detection and the volume will not increase too much.Meanwhile,its size is relatively small among the same type instruments.
作者
吕灿
陈世利
刘洋
张明崴
褚国安
童君开
Lyu Can;Chen Shili;Liu Yang;Zhang Mingwei;Chu Guoan;Tong Junkai(School of Precision Instrument and Opto-Electronics Engineering,Tianjin University,Tianjin 300072,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2022年第11期33-41,共9页
Journal of Electronic Measurement and Instrumentation
关键词
超声导波成像
超声相控阵
超小型
多阵列
高精度
ultrasonic guided wave imaging
ultrasonic phased array
ultra-small
multi-channel
high precision
