Detection of Mineral Oil Aging by Free Space Transmission Measurements with Microstrip Patch Antennas

Proietti, E. orcid iconORCID: 0000-0001-9547-4265, Capoccia, A. orcid iconORCID: 0009-0002-9112-8124, Joseph, D. S. orcid iconORCID: 0009-0004-4784-7855, Bernabei, Mara orcid iconORCID: 0000-0003-4331-6745 and Marcelli, R. orcid iconORCID: 0000-0002-4815-9470 (2025) Detection of Mineral Oil Aging by Free Space Transmission Measurements with Microstrip Patch Antennas. In: Sensors and Microsystems: Proceedings of AISEM 2025. Lecture Notes in Electrical Engineering, 1497 . Springer, pp. 47-52. ISBN 978-3-032-08270-1

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Official URL: https://doi.org/10.1007/978-3-032-08271-8_8

Abstract

In this paper, a non-invasive electromagnetic method using free-space transmission measurements with patch antennas is presented as a promising approach for real-time detection of dielectric property variations induced by oil aging. This measurement technique eliminates the need to extract oil samples and transport them to a laboratory for chemical analysis, allowing the oil condition to be assessed directly in situ. As such, it represents a significant advancement toward the development of smart, integrated oil condition monitoring systems for industrial and energy infrastructures.


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