Visualization and measurement of ultrasonic wavefronts
Visualization and measurement of ultrasonic wavefronts
复制标题
超声波波前的可视化和测量
DOI：
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发表时间：
1979
影响因子：
20.6
通讯作者：
M. E. Haran
中科院分区：
文献类型：
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作者：
M. E. Haran
超声波波阵面通过介质的传输和这些波阵面从物体或界面的反射取决于介质或物体的整体机械特性。测量或可视化波前可以获得有关所研究的各种传输介质和物体的重要信息，并已在无损评估、医学诊断、水下成像和声学显微镜中得到应用。本文综述了超声波前检测、测量和可视化的各种方法。特别强调了超声光学衍射和声学粒子位移的光学干涉检测。简要概述了化学、热、液晶、机电和机械方法。这些方法之间的区别并不总是很清楚。例如，空气/水界面受辐射力的位移是一种机械方法，尽管位移可以用光学方法记录。因此，尝试区分波前对介质或测量设备的物理效应与用于记录该效应的过程。
The transmission of ultrasonic wavefronts through a medium and the reflection of these wavefronts from an object or interface depend upon the bulk mechanical properties of the medium or object. Measuring or visualizing the wavefront yields important information about various transmission media and objects under study and has found application in nondestructive evaluation, medical diagnosis, underwater imaging, and acoustic microscopy. This paper reviews the various methods by which ultrasonic wavefronts are detected, measured, and visualized. Special emphasis is placed on optical diffraction by ultrasound and optical interferometric detection of acoustic particle displacement. Shorter summaries are given of chemical, thermal, liquid crystal, electromechanical, and mechanical methods. The distinction between these methods are not always clear. For example, the displacement of an air/water interface by radiation force is a mechanical method even though the displacement may be recorded optically. Therefore, an attempt is made to distinguish between the physical effect of the wavefronts on the medium or measurement device as opposed to the process used to record that effect.