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Proceedings Paper

Development of a C-Scan phased array ultrasonic imaging system using a 64-element 35MHz transducer
Author(s): Fan Zheng; Changhong Hu; Lequan Zhang; Kevin Snook; Yu Liang; Wesley S. Hackenberger; Ruibin Liu; Xuecang Geng; Xiaoning Jiang; K. Kirk Shung
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Paper Abstract

Phased array imaging systems provide the features of electronic beam steering and dynamic depth focusing that cannot be obtained with conventional linear array systems. This paper presents a system design of a digital ultrasonic imaging system, which is capable of handling a 64-element 35MHz center frequency phased array transducer. The system consists of 5 parts: an analog front-end, a data digitizer, a DSP based beamformer, a computer controlled motorized linear stage, and a computer for post image processing and visualization. Using a motorized linear stage, C-scan images, parallel to the surface of scanned objects may be generated. This digital ultrasonic imaging system in combination a 35 MHz phased array appears to be a promising tool for NDT applications with high spatial resolution. It may also serve as an excellent research platform for high frequency phased array design and testing as well as ultrasonic array signal algorithm developing using system's raw RF data acquisition function.

Paper Details

Date Published: 20 April 2011
PDF: 8 pages
Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833E (20 April 2011); doi: 10.1117/12.880520
Show Author Affiliations
Fan Zheng, The Univ. of Southern California (United States)
Changhong Hu, The Univ. of Southern California (United States)
Lequan Zhang, The Univ. of Southern California (United States)
Kevin Snook, TRS Technologies, Inc. (United States)
Yu Liang, TRS Technologies, Inc. (United States)
Wesley S. Hackenberger, TRS Technologies, Inc. (United States)
Ruibin Liu, Blatek, Inc. (United States)
Xuecang Geng, Blatek, Inc. (United States)
Xiaoning Jiang, North Carolina State Univ. (United States)
K. Kirk Shung, The Univ. of Southern California (United States)


Published in SPIE Proceedings Vol. 7983:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
H. Felix Wu, Editor(s)

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