Magnetic field measurements on bridges and development of a mobile SQUID system

Juergen Krieger; Hans-Joachim Krause; Uwe Gampe; Gottfried Sawade

doi:10.1117/12.339929

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1 February 1999 Magnetic field measurements on bridges and development of a mobile SQUID system

Juergen Krieger, Hans-Joachim Krause, Uwe Gampe, Gottfried Sawade

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Proceedings Volume 3587, Nondestructive Evaluation of Bridges and Highways III; (1999) https://doi.org/10.1117/12.339929
Event: Nondestructive Evaluation Techniques for Aging Infrastructures and Manufacturing, 1999, Newport Beach, CA, United States

Abstract

The paper describes the application of Non-Destructive Testing for the detection of ruptures in the prestressing reinforcement. These damages can be detected by the non- destructive and contactless magnetic stray field measuring method. The paper presents the underlying physical principle and the results of measurements on bridges. Furthermore, the development of a multi-channel system utilizing Superconducting Quantum Interference Devices as most sensitive magnetic field detectors will be reported. First laboratory measurements indicate the potential of this new technique.

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Juergen Krieger, Hans-Joachim Krause, Uwe Gampe, and Gottfried Sawade "Magnetic field measurements on bridges and development of a mobile SQUID system", Proc. SPIE 3587, Nondestructive Evaluation of Bridges and Highways III, (1 February 1999); https://doi.org/10.1117/12.339929

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