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Barkhausen and magneto-acoustic emission from ferromagnetic materials

Abstract:

Barkhausen emission (B.E.) and Magneto-acoustic emission (M.A.E.) can be detected from specimens in a magnetic field varying at a few millihertz. Comparison of the two signals can indicate the nature of the domain walls responsible for the activity at any particular field. In order to characterize a specimen the strength of the emissions around the hysteresis loop are measured together with the distribution of Barkhausen event sizes.

This technique has been used to measure the effe...

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Institution:
University of Oxford
Department:
Mathematical and Physical Sciences Division
Role:
Author

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Role:
Supervisor
Role:
Supervisor
Publication date:
1986
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
University of Oxford
Barcode:
602831377
URN:
uuid:73130e7a-43ab-47fb-a531-65b605bf1904
Local pid:
td:602831377
Language:
English
Subjects:

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