NDLI: Ultrasonic imaging system based on two-dimensional array of ultra-wavelength transducers

Content Provider	IEEE Xplore Digital Library
Author	Titov, S.A. Maev, R.G. Bogachenkov, A.N.
Copyright Year	2012
Description	Author affiliation: Inst. for Diagnostic & Imaging Res., Univ. of Windsor, Windsor, ON, Canada (Titov, S.A.; Maev, R.G.) \|\| Emanuel Inst. of Biochem. Phys., Moscow, Russia (Bogachenkov, A.N.)
Abstract	A method of imaging of a flat reflector with a smooth boundary using two-dimensional array of ultra-wavelength transducers has been developed. The method is based on the comparison of the amplitudes of the echoes received by the elements of the array with the step response of the element and the reconstruction of the reflector's boundary. The proposed method has been experimentally tested using the 15 MHz matrix array. The error of the measured diameter of the test hole in steel foil was found to be significantly lower than the pitch of the array. Also, the proposed technique was applied for measurement of the nugget size in the spot welds.
Starting Page	2446
Ending Page	2449
File Size	641012
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0612
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Imaging Acoustics Estimation Transducers Spot welding Accuracy spot weld matrix array imaging step function oversampling
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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