Three-dimensional ultrasonic imaging

Graham H. Thomas; Steve Benson; Susan Crawford

doi:10.1117/12.160344

15 November 1993 Three-dimensional ultrasonic imaging

Graham H. Thomas, Steve Benson, Susan Crawford

Proceedings Volume 1942, Underground and Obscured Object Imaging and Detection; (1993) https://doi.org/10.1117/12.160344
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

Ultrasonic nondestructive evaluation techniques interrogate components with high frequency acoustic energy. A transducer generates the acoustic energy and converts acoustic energy to electrical signals. The acoustic energy is reflected by abrupt changes in modulus and/or density which can be caused by a defect. Thus defects reflect the ultrasonic energy which is converted into electrical signals. Ultrasonic evaluation typically provides a two dimensional image of internal defects. These images are either planar views (C-scans) or cross-sectional views (B-scans). The planar view is generated by raster scanning an ultrasonic transducer over the component and capturing the amplitude of internal reflections. Depth information is generally ignored. Examples of potential ultrasonic imaging applications are: inside liquid filled tanks, inside the human body, and underwater.

Citation Download Citation

Graham H. Thomas, Steve Benson, and Susan Crawford "Three-dimensional ultrasonic imaging", Proc. SPIE 1942, Underground and Obscured Object Imaging and Detection, (15 November 1993); https://doi.org/10.1117/12.160344

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