Acoustic Noise Emission Detection and Location Analysis from a Scaled Laminated Transformer
Affiliation: Cardiff University, GB
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Affiliation: Cardiff University, GB
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Affiliation: Cardiff University, GB
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Chapter from the book: Spezi E. & Bray M. 2024. Proceedings of the Cardiff University Engineering Research Conference 2023.
In this paper the vibrational noise of a small scale laminated transformer core is measured to study the magnetic phenomena known as magnetostriction which generates its characteristic hum. Noise frequency measurements are recorded using traditional microphone arrangements and a highly sophisticated 2D acoustic camera array to trial its application. The recorded results examine the frequency harmonics of the transformer noise and analyze a method for specific frequency location detection.