Deep defect detection for ferromagnetic materials is a challenging task for Eddy Current
testing (ECT) due to the skin effect of the low penetration depth. Pulsed Eddy Current testing …

A mobile cryocooler-based SQUID NDE system was developed for realization of NDE of
fixed targets that can't be moved or rotated. In order to move the SQUID in an ambient field …

The probability of detection (POD) of hidden fatigue defects in riveted multilayer joints, eg
aircraft fuselage, can be improved by using sophisticated eddy-current systems which …

We have designed, built, and operated a scanning superconducting quantum interference
device (SQUID) microscope that uses a closed-cycle refrigerator to cool a YBa 2 Cu 3 O 7 …

An aircraft wheel testing system using a planar HTS SQUID gradiometer with Joule-
Thomson machine cooling in conjunction with differential eddy current (EC) excitation has …

Abstract Carbon-fibre composites (CFCs), such as carbon-fibre-reinforced plastic (CFRP),
are promising composite materials for aerospace structures. However, there is no reliable …

SQUID technology has recently evolved to the point that it can be used for industrial
applications in Non-Destructive Evaluation (NDE). We present the implementation of an HTS …

We examined the ability to detect deep-lying defects in multilayer stacks of aluminum plates
using an eddy-current testing technique with HTS planar-type SQUID gradiometers. In …

Although the sensitivity of the magnetic field sensor is important for many applications in
electromagnetic testing, SQUID sensors are usually employed for other reasons. For …

We present a brief guide to recent developments of nondestructive evaluation (NDE) of
materials and structures using high-temperature superconducting (HTS) quantum …