Vibration Measurement of an Unbalanced Metallic Shaft Using Electrostatic Sensors

Reda, Kamel and Yan, Yong (2018) Vibration Measurement of an Unbalanced Metallic Shaft Using Electrostatic Sensors. IEEE Transactions on Instrumentation & Measurement, . pp. 1-10. ISSN 0018-9456. E-ISSN 1557-9662. (doi:https://doi.org/10.1109/TIM.2018.2882900) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided)

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Abstract

Vibration measurement of a rotary shaft is essential for the diagnosis and prognosis of industrial rotating machinery. However, the imbalance of a shaft, as quantified through vibration displacement, is the most common cause of machine vibration. The objective of this study is to develop a novel technique through electrostatic sensing for the on-line, continuous and non-contact displacement measurement of a rotary shaft due to imbalance faults. A mathematical model is established to extract useful information about the shaft displacement vibration from the simulated signal in the frequency domain. Experimental tests were conducted on a purpose-built test rig to measure the displacement vibration of the shaft. An eccentric shaft was tested with the output signal from the electrostatic sensor analyzed. The effectiveness of the proposed method is verified through computer simulation and experimental tests. Results obtained indicate that the measurement system yields a relative error of within ±0.6% in the displacement measurement.

Item Type: Article
Uncontrolled keywords: Rotating machinery; Fault detection; Vibration; Imbalance; Displacement; Electrostatic Sensors.
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Instrumentation, Control and Embedded Systems
Depositing User: Yong Yan
Date Deposited: 12 Nov 2018 14:12 UTC
Last Modified: 04 Feb 2019 12:27 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/70043 (The current URI for this page, for reference purposes)
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