水听器
扫描仪
传感器
超声波
MATLAB语言
平面的
声学
计算机科学
再现性
超声波传感器
材料科学
物理
人工智能
数学
计算机图形学(图像)
操作系统
统计
作者
Sam Clinard,Erin Wettstone,David Moore,John Snell,F. Padilla,Matt Eames
标识
DOI:10.1016/j.ultrasmedbio.2021.09.022
摘要
The Focused Ultrasound Foundation has developed a low-cost, validated, open-source hydrophone scanner for the spatial characterization of ultrasound transducers. Assembly instructions and a MATLAB control graphical user interface are provided such that the device can be easily replicated for less than $1000 in roughly 40 person-hours. The low-cost scanning tank's performance was compared with data collected with a commercial automated scanning tank. Pressure measurements of a focused transducer and a planar transducer had less than a 10% difference between the two scanning systems. Two-dimensional automated scans (20 × 20 mm at 0.25-mm resolution) took the low-cost scanning tank 45 min compared with the commercial system's 30 min. A reproducibility study found that the low-cost scanner made consistent peak negative pressure measurements as reflected by the low coefficient of variation for both focused (1.88%) and planar (0.98%) transducers. The low-cost scanner described here is a viable alternative for ultrasound laboratories needing efficient, accurate characterization of ultrasound transducers.
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