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A Low-Cost System for Measurement and Spectral Analysis of Motor Acoustic Noise

Kumar, Binoj and Narayanan, G (2001) A Low-Cost System for Measurement and Spectral Analysis of Motor Acoustic Noise. In: National Power Electronics Conference (NPEC) 2011, 20-22 December 2011, Bengal Engineering and Science University, Howrah, West Bengal, India..

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Workplace noise has become one of the major issues in industry not only because of workers’ health but also due to safety. Electric motors, particularly, inverter fed induction motors emit objectionably high levels of noise. This has led to the emergence of a research area, concerned with measurement and mitigation of the acoustic noise. This paper presents a lowcost option for measurement and spectral analysis of acoustic noise emitted by electric motors. The system consists of an electret microphone, amplifier and filter. It makes use of the windows sound card and associated software for data acquisition and analysis. The measurement system is calibrated using a professional sound level meter. Acoustic noise measurements are made on an induction motor drive using the proposed system as per relevant international standards. These measurements are seen to match closely with those of a professional meter.

Item Type: Conference Paper
Additional Information: Copyright for theis article belongs to Bengal Engineering and Science University, Howrah, India.
Keywords: Acoustic noise, conventional space vector pulsewidth modulation (CSVPWM), discrete fourier transform, induction motor drive, noise measurement, sound pressure level, spectral analysis.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 12 Jul 2014 15:05
Last Modified: 16 Jul 2014 05:01
URI: http://eprints.iisc.ac.in/id/eprint/49399

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