2D imaging of ultrasound fields using CCD array to map output of Fabry-Perot polymer film sensor
2D imaging of ultrasound fields using CCD array to map output of Fabry-Perot polymer film sensor
复制标题
使用 CCD 阵列绘制法布里-珀罗聚合物薄膜传感器输出的超声场 2D 成像
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
P. Beard
中科院分区：
文献类型：
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作者：
M. Lamont;P. Beard
介绍了一种二维超声场成像系统，该系统利用面阵电荷耦合器件来映射平面法布里-珀罗聚合物薄膜传感干涉仪的光输出。该系统能够在6.6×4.7 mm孔径上快速映射超声场，空间分辨率和时间分辨率分别达到10 微米和10 ns数量级。通过对脉冲5 MHz PZT超声换能器焦点处的声场成像，成功地证明了这一概念。这项技术为高分辨率生物医学和工业超声成像以及现场表征应用提供了一种替代基于压电的方法。
A 2D ultrasound field imaging system that uses a CCD array to map the optical output of a planar Fabry-Perot polymer film sensing interferometer is described. This system enables ultrasound fields to be rapidly mapped over a 6.6×4.7 mm aperture with spatial and temporal resolutions of the order of 10 µm and 10 ns, respectively. The concept was successfully demonstrated by imaging the acoustic field at the focus of a pulsed 5 MHz PZT ultrasound transducer. The technique offers an alternative to piezoelectric-based methods for high-resolution biomedical and industrial ultrasonic imaging and field characterisation applications.