Induction machine fault detection using smartphone recorded audible noise
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2018-07-01
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Mcode
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Language
en
Pages
7
554-560
554-560
Series
IET Science, Measurement and Technology, Volume 12, issue 4
Abstract
This study presents induction machine fault detection possibilities using smartphone recorded audible noise. Acoustic and audible noise analysis for fault detection is a well-established technique; however, specialised equipment for diagnostic purposes is often very expensive and difficult to operate. To overcome this obstacle, a simple pre-diagnostic procedure, using hand-held smartphones is proposed. Different faults of the three-phase squirrel cage induction machine such as various numbers of broken rotor bars and dynamic rotor eccentricity are inflicted to the machine and the resulting audible signals are recorded in laboratory circumstances using two widely available commercial smartphones. The analysis is performed on audible noise and compared with the results of mechanical vibrations measurements, recorded by vibration sensors. Rotational speed frequency and twice-line frequency are used as diagnostic indicators of faults. A simple neural network is composed and probabilities of fault detection using such diagnostic measures are presented. The necessity for further study as well as further implementation and method refinement necessity is pointed out.Description
Keywords
frequency measurement, smart phones, probability, velocity measurement, fault diagnosis, computerised instrumentation, acoustic noise measurement, neural nets, rotors, squirrel cage motors
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Citation
Vaimann, T, Sobra, J, Belahcen, A, Rassõlkin, A, Rolak, M & Kallaste, A 2018, ' Induction machine fault detection using smartphone recorded audible noise ', IET Science Measurement and Technology, vol. 12, no. 4, pp. 554-560 . https://doi.org/10.1049/iet-smt.2017.0104