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Title: A PC-Based Near Real-Time Ultrasonic Imaging System for Flaw Characterization
Authors: Anand R.S.
Kumar V.
Published in: Journal of Testing and Evaluation
Abstract: This paper presents the description of a PC-based ultrasonic imaging system which generates three types of pulse-echo ultrasound images, namely, A-scan, B-scan, and C-scan, almost in real time. The system has pulser-receiver circuitry employing a single ultrasonic probe working as both the transmitter and the receiver. The generated ultrasound signal is transferred to a PC-AT using the A/D conversion facility of a digital storage oscilloscope where it is processed for target echoes with their amplitude and location. Thereafter, this information is correlated to provide a particular type of image. The probe positioning for the images is accomplished by a motorized mechanical system made up of two stepping motors. This developed ultrasonic imaging system is fully automatic, user-friendly, and operator independent.
Citation: Journal of Testing and Evaluation (1997), 25(6): 529-535
Issue Date: 1997
Publisher: American Society for Testing and Materials
Keywords: Cross correlation
Fast Fourier Transform
Pulse-echo images
Step averaging
Ultrasonic nondestructive evaluation
ISSN: 903973
Author Scopus IDs: 56363331000
Author Affiliations: Anand, R.S., Department of Electrical Engineering, Indian Institute of Technology, Kharagpur-721 302, India
Kumar, V., Department of Electrical Engineering, University of Roorkee, Roorkee-247 667, India
Corresponding Author: Anand, R.S.; Department of Electrical Engineering, Indian Institute of Technology, Kharagpur-721 302, India
Appears in Collections:Journal Publications [EE]

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