2D transmission imaging with a crossed-array configuration for defect detection

Koch A, Gruber S, Scharrer T, Fendt K, Lerch R, Ermert H (2012)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2012

Pages Range: 36-39

Article Number: 6562075

Conference Proceedings Title: 2012 IEEE International Ultrasonics Symposium Proceedings

Event location: Dresden DE

ISBN: 9781467345613

DOI: 10.1109/ULTSYM.2012.0010

Abstract

Two-dimensional time of fight and attenuation measurements offer unique opportunities in nondestructive ultrasound testing for defect detection. However, unavailability or costs for 2D matrix transducers usually require a mechanical scanning procedure with a single element transducer to acquire 2D projections. This time and cost intensive process is not applicable for high speed testing of e.g. low cost devices. We propose a concept of a crossed-array configuration for 2D transmission imaging in terms of time of fight and attenuation measurements. A mechanical setup and a data acquisition system have been developed to evaluate the potential of this concept. Our results show, that ultrasound crossed-array transmission imaging has a great potential in terms of time of fight and attenuation measurements for defect detection in non-destructive testing, e.g. for detection of delaminations. With an appropriate data acquisition system transmission images can be acquired with frames rates in the kHz range. Therefore, crossed-array transmission imaging is a unique, cost efficient procedure with a good resolution for high speed testing in industrial applications. © 2012 IEEE.

Authors with CRIS profile

Stefan Gruber Lehrstuhl für Autonome Systeme und Mechatronik Thomas Scharrer Lehrstuhl für Autonome Systeme und Mechatronik Karl Fendt Lehrstuhl für Autonome Systeme und Mechatronik Reinhard Lerch Lehrstuhl für Autonome Systeme und Mechatronik Helmut Ermert Lehrstuhl für Hochfrequenztechnik (LHFT)

Involved external institutions

Ruhr-Universität Bochum (RUB) DE Germany (DE)

How to cite

APA:

Koch, A., Gruber, S., Scharrer, T., Fendt, K., Lerch, R., & Ermert, H. (2012). 2D transmission imaging with a crossed-array configuration for defect detection. In 2012 IEEE International Ultrasonics Symposium Proceedings (pp. 36-39). Dresden, DE.

MLA:

Koch, Andreas, et al. "2D transmission imaging with a crossed-array configuration for defect detection." Proceedings of the 2012 IEEE International Ultrasonics Symposium, IUS 2012, Dresden 2012. 36-39.

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