II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
II. Applications of the Josephson Effect
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R. Gross, A. Marx, and F. Deppe © Wal<strong>the</strong>r-Meißner-Institut (2001 - 2013)<br />
4.5.2 Nondestructive Evaluation (NDE)<br />
non-invasive identification <strong>of</strong> structural or material defects<br />
(sub-) surface cracks in aircrafts<br />
reinforcing rods in concrete strutures<br />
short distance between inner<br />
cold and out warm wall<br />
(spatial resolution)<br />
HTS SQUIDs (@ 77 K)<br />
advantageous<br />
eddy-current techniques:<br />
- alternating field<br />
- eddy currents disturbed by material defects<br />
AS-Chap. 4 - 65
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