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Review of ultrasonic-based technology for oil film thickness measurement in lubrication.

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Title: Review of ultrasonic-based technology for oil film thickness measurement in lubrication.
Authors: Dou, Pan1,2 (AUTHOR), Jia, Yaping1 (AUTHOR), Zheng, Peng1 (AUTHOR), Wu, Tonghai1 (AUTHOR) wt-h@163.com, Yu, Min3 (AUTHOR), Reddyhoff, Tom3 (AUTHOR), Peng, Zhongxiao2 (AUTHOR)
Source: Tribology International. Jan2022, Vol. 165, pN.PAG-N.PAG. 1p.
Subjects: Elastohydrodynamic lubrication, Thickness measurement, Mechanical efficiency, Signal processing
Abstract: Lubricant film thickness is the most informative variable that reflects lubrication conditions and transmission efficiency in the mechanical equipment, therefore its measurement is highly important. Despite a large number of theoretical models that have been developed to describe the lubricant film, complexities and uncertainties in a real tribo-pair contact still hinder the implementation of accurate and robust methods of in-situ film thickness measurements. Recently, ultrasonic-based measurement has been widely studied, showing promising potential owing to its non-destructive characteristics, high sensitivity, and limited physical modifications. This paper comprehensively reviews basic principles of ultrasonic-based oil film measurement; summarizes progress on calculation models and associated signal processing methods; exhibits in-lab demonstrations and in-situ applications; and discusses key technical issues and possible solutions. [ABSTRACT FROM AUTHOR]
Copyright of Tribology International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 153850108
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Review of ultrasonic-based technology for oil film thickness measurement in lubrication.
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  Data: <searchLink fieldCode="JN" term="%22Tribology+International%22">Tribology International</searchLink>. Jan2022, Vol. 165, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Elastohydrodynamic+lubrication%22">Elastohydrodynamic lubrication</searchLink><br /><searchLink fieldCode="DE" term="%22Thickness+measurement%22">Thickness measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+efficiency%22">Mechanical efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Lubricant film thickness is the most informative variable that reflects lubrication conditions and transmission efficiency in the mechanical equipment, therefore its measurement is highly important. Despite a large number of theoretical models that have been developed to describe the lubricant film, complexities and uncertainties in a real tribo-pair contact still hinder the implementation of accurate and robust methods of in-situ film thickness measurements. Recently, ultrasonic-based measurement has been widely studied, showing promising potential owing to its non-destructive characteristics, high sensitivity, and limited physical modifications. This paper comprehensively reviews basic principles of ultrasonic-based oil film measurement; summarizes progress on calculation models and associated signal processing methods; exhibits in-lab demonstrations and in-situ applications; and discusses key technical issues and possible solutions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Tribology International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.triboint.2021.107290
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        Text: English
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      – SubjectFull: Thickness measurement
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              Text: Jan2022
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