A novel motor speed calculation method using square wave speed sensor signals via fast Fourier transform

Authors

HAYRİ ARABACI
OSMAN BİLGİN

DOI

10.3906/elk-1102-1038

Abstract

This paper presents a novel motor speed measurement method and experimental results using the fast Fourier transform (FFT). Motor speed is obtained using the square wave output signal of a speed sensor. In the proposed method, the speed can be measured in a wide range, and transient speed changes can also be clearly observed. The experiments were conducted during start-up and in steady state. The sampled speed data were transformed to frequency spectrums using the FFT. The frequency, which corresponds to the maximum amplitude in the spectrum, was used to calculate the motor speed. The test results show that the proposed method is very useful.

Keywords

Motor speed measurement, transient analysis, fast Fourier transform, signal processing

First Page

1090

Last Page

1099

Recommended Citation

ARABACI, HAYRİ and BİLGİN, OSMAN (2012) "A novel motor speed calculation method using square wave speed sensor signals via fast Fourier transform," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 20: No. 7, Article 5. https://doi.org/10.3906/elk-1102-1038
Available at: https://journals.tubitak.gov.tr/elektrik/vol20/iss7/5