Article
Measurement of the Speed of Induction Motors Based on Vibration with a Smartphone
Author/s | Páramo Balsa, Paula
![]() ![]() ![]() ![]() ![]() ![]() Roldán Fernández, Juan Manuel ![]() ![]() ![]() ![]() ![]() ![]() ![]() González Longatt, Francisco Burgos Payán, Manuel ![]() ![]() ![]() ![]() ![]() ![]() |
Department | Universidad de Sevilla. Departamento de Ingeniería Eléctrica |
Publication Date | 2022-03 |
Deposit Date | 2022-06-30 |
Published in |
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Abstract | Induction motors are key pieces of equipment in today’s society, powering a variety of industrial drives and home appliances. The induction motor speed is often used to monitor the performance of all kinds of industrial ... Induction motors are key pieces of equipment in today’s society, powering a variety of industrial drives and home appliances. The induction motor speed is often used to monitor the performance of all kinds of industrial drives. For example, in the industrial field, the motor speed is very often used to determine the efficiency and mechanical load of motors. In this work, a new simple, low-cost, and nonintrusive procedure is proposed for infield measurement of induction motors speed, which is based on the spectral analysis of the vibration signal of the motors. The motor vibration signal is first acquired using the accelerometers integrated into a basic phone. The acquired signal is then treated by a MATLAB-based algorithm, which can determine the motor speed by identifying the mechanical frequency of the rotor shaft from the harmonic content of the vibration signal. In this way, it is shown that the mechanical frequency corresponding to the speed of rotation of the motors can be acquired by means of the embedded accelerometers of a common smartphone, avoiding the acquisition and installation of external accelerometers. To the authors’ knowledge, this could be the first time that a smartphone has been proposed as a practical means of measuring the speed of a motor by analysing its vibration. Experimental results from an extensive set of tests, including the supply of the motor from a frequency converter, show that the speed can always be measured with a relative error of less than 0.15%. |
Project ID. | ENE2016-77650-R
![]() 718RT0564 ![]() CER-20191019 ![]() US-1265887 ![]() |
Citation | Páramo Balsa, P., Roldán Fernández, J.M., González Longatt, F. y Burgos Payán, M. (2022). Measurement of the Speed of Induction Motors Based on Vibration with a Smartphone. Applied Sciences, 12 (7), 3371. |
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