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Application of a two-dimensional phase unwrapping algorithm to lubricant film thickness measurement

Longjun Xie1, Zhisong Li2, Long Lin1

  • 1College of Machine, Shanghai Dianji University, Shanghai, 201306, P. R. China.

Scientific Reports
|March 31, 2026
PubMed
Abstract

No abstract available in PubMed .

Keywords:
Improved unwrapping algorithmInterferometryLubricated contact imagingPhase unwrapping

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Effective lubrication between a rotating shaft and its bearing housing is essential in rotating machinery to minimize friction, wear, and energy loss. With carefully controlled thickness and viscosity, the lubricant layer prevents metal-to-metal contact, ensuring smooth operation.
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular velocity...
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