Analysis of Vibration and Acoustic Signals for Noncontact Measurement of Engine Rotation Speed

Shan Xuansheng; Tang Lu; He Wen; Radek Martinek; Janusz Smulko

doi:10.3390/s20030683

Analysis of Vibration and Acoustic Signals for Noncontact Measurement of Engine Rotation Speed

Abstract

The non-contact measurement of engine speed can be realized by analyzing engine vibration frequency. However, the vibration signal is distorted by harmonics and noise in the measurement. This paper presents a novel method for the measurement of engine rotation speed by using the cross-correlation of vibration and acoustic signals. This method can enhance the same frequency components in engine vibration and acoustic signal. After cross-correlation processing, the energy centrobaric correction method is applied to estimate the accurate frequency of the engine’s vibration. This method can be implemented with a low-cost embedded system estimating the cross-correlation. Test results showed that this method outperformed the traditional vibration-based measurement method.

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Category:: Articles
Type:: artykuły w czasopismach
Published in:: SENSORS no. 20, pages 1 - 10,
ISSN: 1424-8220
Language:: English
Publication year:: 2020
Bibliographic description:: Xuansheng S., Lu T., Wen H., Martinek R., Smulko J.: Analysis of Vibration and Acoustic Signals for Noncontact Measurement of Engine Rotation Speed// SENSORS -Vol. 20,iss. 3 (2020), s.1-10
DOI:: Digital Object Identifier (open in new tab) 10.3390/s20030683
Verified by:: Gdańsk University of Technology