Novel excitation coils for non-destructive evaluation of non-magnetic metallic structures by high-Tc dc SQUID

Please use this identifier to cite or link to this item: https://doi.org/10.1088/0953-2048/15/6/302

Title:	Novel excitation coils for non-destructive evaluation of non-magnetic metallic structures by high-Tc dc SQUID
Authors:	Chen, P. Chen, L. Li, J. Ong, C.K.
Issue Date:	Jun-2002
Citation:	Chen, P., Chen, L., Li, J., Ong, C.K. (2002-06). Novel excitation coils for non-destructive evaluation of non-magnetic metallic structures by high-Tc dc SQUID. Superconductor Science and Technology 15 (6) : 855-858. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-2048/15/6/302
Abstract:	A non-destructive evaluation (NDE) system was set up in our laboratory. A high-Tc dc superconducting quantum interference device (dc SQUID) made from YBa2Cu3O7-δ thin film on a 24° bicrystal SrTiO3 substrate was adopted as the magnetic flux sensor. Novel excitation coils and a balance circuitry were proposed and employed for evaluation of multilayer aluminium structure with artificial slits in an unshielded noisy environment. Our experimental data demonstrate that the NDE system with proper location of two thin excitation coils could make full use of the dynamic range of the SQUID and enhance the spatial resolution of detection.
Source Title:	Superconductor Science and Technology
URI:	http://scholarbank.nus.edu.sg/handle/10635/113095
ISSN:	09532048
DOI:	10.1088/0953-2048/15/6/302
Appears in Collections:	Staff Publications

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