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Implementation of C-Scan High-Frequency Ultrasonic System Using Analog Log Detector
Journal of Institute of Control, Robotics and Systems, 2020In this paper, we implement a C-Scan 70 MHz ultrasonic system using an analog log detector, and we conduct experiments with this system. If a system with a 70 MHz ultrasonic system is implemented using conventional methods, the required sampling frequency ranges between 420 MHz to 700 MHz, which is 6 to 10 times the ultrasonic frequency.
Gang-Myung Lee +2 more
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Fiber orientation study using ultrasonic C-scan of ply interfaces
AIP Conference Proceedings, 2002A new method for direct mapping of ply orientations in composite laminates is presented. The method employs normal incidence ultrasound to scan ply interfaces and produce C-scan images that contain primarily the fiber orientation information of local plies.
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High Resolution, High Sensitivity Ultrasonic C-Scan Imaging System
1977A particular goal of much of the research in ultrasonic imaging is the development of systems that can image a volume inside the body with high resolution in all dimensions.
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Weld quality inspection using laser-EMAT ultrasonic system and C-scan method
AIP Conference Proceedings, 2014Laser/EMAT ultrasonic technique has attracted more and more interests in weld quality inspection because of its non-destructive and non-contact characteristics. When ultrasonic techniques are used to detect welds joining relative thin plates, the dominant ultrasonic waves present in the plates are Lamb waves, which propagate all through the thickness ...
Lei Yang, I. Charles Ume
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Blind Image Restoration for Ultrasonic C-Scan Using Constrained 4th Order Cumulants
NDE Challenges of the 21st Century: Theory to Practice, 2001Abstract C-Scans are ways to visualize the sample under study by utilizing the reflections from various levels of non-homogenous wave transfer within the sample. Unlike other imaging techniques, C-scan are usually constructed from the pulse-echoed A-Scans by mapping the 1D windowed signal into a point corresponding to a pixel on the C ...
Uvais Qidwai, Chi-Hau Chen
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High Range Resolution Ultrasonic C Scan For Nondestructive Evaluation Of Composite Materials
SPIE Proceedings, 1987High range resolution ultrasonic c scan for nondestructive evaluation of composite materialsR. Zapp, B. Ho and L. LiDepartment of Electrical Engineering, Michigan State UniversityEast Lansing, Michigan 48824AbstractA low cost high range resolution ultrasonic imaging system has been developed to nondestructivelyevaluate composite material as well as ...
R. Zapp, B. Ho, L. Li
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Microstructure Characterization of Cancellous Bone Based on Ultrasonic C-Scan Imaging
2017Ultrasonic backscatter signals can reflect the microstructural information of cancellous bone. The goal of this study is to characterize the microstructure of cancellous bone in the mesoscale and estimate trabecular thickness (Tb.Th), trabecular bone separation (Tb.Sp), bone volume fraction (BV/TV) and structure model index (SMI) based on ultrasonic C ...
Ying Li +3 more
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The ultrasonic C-Scan technique for damage evaluation of GFRP composite materials [PDF]
, 2016 We show experimental results obtained by an innovative non-destructive approach for the characterization of the damage of composite materials. The analysis regard an aeronautical rotor made of glass fiber–reinforced composite material, and is developed by applying an ultrasonic immersion C-Scan technique.
Castellano, Anna +4 more
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Ultrasonic C-scan detection research for effective connection area of arc-stud-weld joints
The International Journal of Advanced Manufacturing Technology, 2019Juan Dong +4 more
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