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Non destructive evaluation using the SQUID with integrated gradiometer
Description
An eddy current nondestructive evaluation system using a low-temperature SQUID magnetic sensor was operated in an unshielded environment. The sensor consists of a niobium dc superconducting quantum interference device (SQUID) and a first-order gradiometer pick up coil on the same substrate. We have used the integrated SQUID gradiometer in an unshielded environment to make eddy current nondestructive evaluation measurement on a multi-layer aluminum structure.
Journal
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- Proceedings of International Solid State Sensors and Actuators Conference (Transducers '97)
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Proceedings of International Solid State Sensors and Actuators Conference (Transducers '97) 1 409-412, 2002-11-22
IEEE