Improvement of the resolution limit caused by the width of the sound beam
Improvement of the resolution limit caused by the width of the sound beam
复制标题
改善声束宽度引起的分辨率限制
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
E. Kuhnicke
中科院分区：
文献类型：
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作者：
S. Kummritz;M. Wolf;E. Kuhnicke
利用超声成像技术确定反射镜的尺寸和形状受到一些限制。除了波长之外，声束宽度是第二个已知的限制条件。然而，分辨率也会受到被分析的反射器本身的形状、对准、表面粗糙度和材料的限制。此外，不同的反射器可以用简单的c扫描显示相同，因此不可能区分。在这项工作中，分析了两种不同的基本反射器，球和圆盘。我们将介绍一种简单的方法来区分它们。此外，还将介绍几种用超声估计球大小的方法。
Determining of size and shape of reflector with ultrasound imaging is subjected to several limitations. Beside the wavelength, the sound beam width is a second known constraint. However, the resolution can also be restricted by the analysed reflector itself by its shape, alignment, surface roughness and material. Furthermore, different reflectors can be displayed identically with a simple c-scan, so that no differentiation is possible. In this work two different basic reflectors, balls and circular disks, were analysed. An easy method to distinguish between them will be introduced. In addition, several approaches for estimating the size of balls with ultrasound will be presented.