Table of Contents
Lubricants, Volume 7, Issue 2 (February 2019)
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Cover Story (view full-size image) How often should engine oil be changed? Changing engine oil too soon wastes resources, while [...] Read more. How often should engine oil be changed? Changing engine oil too soon wastes resources, while waiting too long can result in engine damage. For decades, scientists have been developing and testing sensors with the goal of developing a reliable, on-board, real-time oil condition monitoring system. Terahertz time-domain spectroscopy (THz-TDS) is a relatively recent spectroscopy tool that uses terahertz waves to penetrate samples. Gaining a better understanding how terahertz waves interact with fresh and used engine oils and contaminated engine oils is an important step toward assessing the potential for THz-TDS to be further engineered for integration into an on-board oil monitoring system. View this paper