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Article: AE measurements for superconducting devices.
- Article from:
- Journal of Acoustic Emission
- Article date:
- January 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 Acoustic Emission Group. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
This paper presents four topics about acoustic emission (AE) measurements for superconducting (SC) devices, which were conducted at National Institute of Advanced Industrial Science and Technology, Seikei University and Japan Atomic Energy Agency. (1) AE signals induced from typical phenomena of wire motion and friction in a high-temperature SC coil were demonstrated. AE signals of the repeated operation process by alternating current were also shown. (2) AE signals induced from a low-temperature SC coil were measured when quenching took place. AE signals have varied waveforms depending on quenching patterns, which included information of the instability ...
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