Imperial College London
Alternate

Dr Tom Reddyhoff

Faculty of Engineering, Department of Mechanical Engineering

Reader in Tribology
 
 
 
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Contact

 

+44 (0)20 7594 3840t.reddyhoff Website

 
 
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Location

 

670City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Yu:2022,
author = {Yu, M and Zhang, J and Kirkby, T and Joedicke, A and Reddyhoff, T},
title = {Electrical impedance spectroscopy enabled in-depth lubrication condition monitoring},
url = {http://hdl.handle.net/10044/1/93182},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Electrical contact resistance or capacitance as measured between twointerfaces of a lubricated contact has been used in tribometers, partiallyreflecting the lubrication condition. In contrast, the electrical impedancespectroscopy (EIS) provides rich information of magnitude/phase spectrum,which is thoroughly investigated using a combination of electrical circuitmodels (equivalent to the lubricated contact) and in-situ measurements with aball-on-disc contact. Results indicate a promising potential of EIS inlubrication condition monitoring, including the variation of lubricant filmthickness as estimated using high-frequency magnitude response; thetransition between full-film, mixed, and boundary lubrication regimes, asdifferentiated using extracted electrical resistance together with phasespectrum; the forming of anti-wear boundary film, where extraresistor/capacitor are added; and the degradation of lubricant, such as fueldilution, oil oxidization, and water emulsifying.
AU  - Yu,M
AU  - Zhang,J
AU  - Kirkby,T
AU  - Joedicke,A
AU  - Reddyhoff,T
PY  - 2022///
TI  - Electrical impedance spectroscopy enabled in-depth lubrication condition monitoring
UR  - http://hdl.handle.net/10044/1/93182
ER  -
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