碩士 / 大葉大學 / 機電自動化研究所碩士班 / 95 / Superconducting Quantum Interference Device (SQUID) with the unique magnetic characteristics and ultra-high sensitivity combines the differential type of eddy-current probe to apply in the nondestructive evaluation of metal conductor.
The study finds out the resonance frequency of the entire excitation coil, sensing coil, SQUID by SQUID as signal amplifier and the design of quad excitation and differential probe. And we utilize best parameter conditions to fabricate the complete system including Dewar, magnetically shielding box, and coils. Consequently it is used to measure some characteristics and to create two dimensional images.
In order to improve the practicability and convenience of SQUID application to NDE system, we utilize transfer coil to make induced current flow into magnetically shielding box. It results in the occurrence of magnetic field in the input coil for SQUID sensing.
Keywords：Superconducting Quantum Interference Device，Non-destructive testing，Differential eddy current probe.
| Identifer | oai:union.ndltd.org:TW/095DYU00689022 |
| Date | January 2007 |
| Creators | Yi-Sheng Li, 林益聖 |
| Contributors | CYHong, Jeng-Jong Ro, 洪振義, 羅正忠 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 55 |
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