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Proceedings Article

Development of a C-Scan phased array ultrasonic imaging system using a 64-element 35MHz transducer

[+] Author Affiliations
Fan Zheng, Changhong Hu, Lequan Zhang, K. Kirk Shung

The Univ. of Southern California (USA)

Kevin Snook, Yu Liang, Wesley S. Hackenberger

TRS Technologies, Inc. (USA)

Ruibin Liu, Xuecang Geng

Blatek, Inc. (USA)

Xiaoning Jiang

North Carolina State Univ. (USA)

Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833E (April 19, 2011); doi:10.1117/12.880520
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From Conference Volume 7983

  • Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
  • San Diego, California, USA | March 06, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Fan Zheng ; Changhong Hu ; Lequan Zhang ; Kevin Snook ; Yu Liang, et al.
"Development of a C-Scan phased array ultrasonic imaging system using a 64-element 35MHz transducer", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833E (April 19, 2011); doi:10.1117/12.880520; http://dx.doi.org/10.1117/12.880520


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