Archive > 2016 > June 2016 > Acoustic Analysis of Electric Motors in Noisy Industrial Environment

Acoustic Analysis of Electric Motors in Noisy Industrial Environment - June 2016

Maciej Orman and Cajetan T. Pinto

The article "Acoustic Analysis of Electric Motors in Noisy Industrial Environment" appeared in the June 2016 issue of Power Transmission Engineering.

Summary
This paper presents a method for the acoustic analysis of electric motors in noisy industrial environments. Acoustic signals were measured via acoustic camera 48-microphone array, which has the capability to localize a sound (or sounds) source and, in turn, separate those sounds from intrusive background noise. These acoustic analysis results are then compared with vibration measurements; vibration monitoring is a well-known and established technique used in condition monitoring, and in this work vibration measurements were used as a reference signal for assessment of the value of the acoustic measurements. Vibration signals were measured by piezoelectric accelerometers. Two induction motor cases were examined — a healthy motor case, and a combination of static eccentricity with soft foot case. As shown, acoustic analysis appears to be a valuable technique for condition monitoring of electric motors — particularly in noisy industrial environments.

Keywords
condition monitoring

The article "Acoustic Analysis of Electric Motors in Noisy Industrial Environment" should appear in the box below, but if you do not see it, you can download it here.

It appears you don't have a PDF plugin for this browser. No biggie... you can click here to download the PDF file.