Development of a New Lubricant Degradation Monitoring Technique Using Terahertz Electromagnetic Waves

Condition monitoring of lubricating oil is an effective method for early detection of abnormalities in rotating machinery in plants. In this research, a new monitoring technique for lubricant degradation using terahertz waves, which are electromagnetic waves located in the boundary region between li...

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Bibliographic Details
Published in:Engineering proceedings 2023-10, Vol.51 (1), p.21
Main Authors: Hiroki Kawano, Daiki Shiozawa, Tomohiro Ooyagi, Yuki Ogawa, Takahide Sakagami
Format: Article
Language:English
Subjects:
degradation monitoring
lubricating oil
terahertz electromagnetic waves
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Summary:Condition monitoring of lubricating oil is an effective method for early detection of abnormalities in rotating machinery in plants. In this research, a new monitoring technique for lubricant degradation using terahertz waves, which are electromagnetic waves located in the boundary region between light and radio waves, is developed based on the correlation between lubricant degradation and the transmission characteristics of terahertz waves. It is found that there is a correlation between the transmission characteristics of terahertz waves, such as transmittance and refractive index, and typical lubricant degradation, such as base oil degradation, water contamination, and metallic wear debris contamination. The results suggest that a new lubricant degradation monitoring technique using terahertz waves is possible by using these transmission characteristics.
ISSN:2673-4591
DOI:10.3390/engproc2023051021