Ultrasound Imaging Using Spatial Domain Phase Information

Abstract:

The aim of this paper is to determine the efficacy of the ring-shaped array used for imaging the objects inside the array. Hyperbola algorithm and ellipse algorithm which are conventionally used in the field of guided wave for locating the defects are developed and combined here to extract the image. Meanwhile, much more phase information is added in this process. Fan-shaped ultrasound radiation is generated separately by the 45 rectangular ultrasonic transducers which are circular embedded in the wall of a container. The time of flight data and the attenuation data are obtained and stored in the A-scan wave of each receiving transducer, subsequently, they are applied for reconstructing the image of all tested objects. The validity of the combined measuring method with phase information is demonstrated by imaging the distributed polyurethane objects.

• Periodical: Applied Mechanics and Materials (Volume 742)
• Pages: 118-122
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.742.118
• Online since: March 2015
• Authors: Liu Yang*, Chun Guang Xu, Xin Liang Li, Ye Huang
• Keywords: Ellipse Algorithm, Hyperbola Algorithm, Phase Information

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