A method for imaging steel bars behind a ferrous steel boundary

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A system for detecting steel objects behind ferrous steel boundaries is described. It may be used to image steel reinforcing bars in concrete, where a steel sheet exists between the bars and the surface. The sensor comprises a transmitter, receiver and a dummy coil, which cancels cross-talk and enhances the signal from the bars. It is possible to penetrate a 2mm thick sheet at 125 Hz and image 16 mm diameter bars placed underneath.

Bibliographical metadata

Original languageEnglish
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation: Volume 25B
Number of pages8
Volume820 II
Publication statusPublished - 6 Mar 2006
EventReview of Progress in Quantitative Nondestructive - Brunswick, ME, United States
Event duration: 31 Jul 20055 Aug 2005


ConferenceReview of Progress in Quantitative Nondestructive
CountryUnited States
CityBrunswick, ME