| 吕 灿,陈世利,刘 洋,张明崴,褚国安,童君开.手持式超声多通道系统设计与导波成像技术研究[J].电子测量与仪器学报,2022,36(11):33-41 |
| 手持式超声多通道系统设计与导波成像技术研究 |
| Design of hand-held multi-channel ultrasonic system andapplications to ultrasonic guided wave imaging |
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| DOI： |
| 中文关键词: 超声导波成像 超声相控阵 超小型 多阵列 高精度 |
| 英文关键词:ultrasonic guided wave imaging ultrasonic phased array ultra-small multi-channel high precision |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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