Abstract
The paper summarizes the author’s application and testing of an oil quality sensor for diesel engine applications. Maintaining healthy fluid systems is critical to keeping machinery in a high readiness state. The authors describe the oil sensing principles and recent experiences proving the sensor’s ability to autonomously assess oil quality and classify specific diesel oil contaminants. The sensor includes both analog and digital electronics enabling the sensor to perform fluid interrogations, operate contaminant classifier algorithms, trend specific estimated contaminants, implement higher-level communications protocols and ultimately enable prognostics of future oil quality or contaminant level. The sensor design enables direct insertion into a drain plug or fluid circulation line, as done in the current testing effort. The authors provide an overview of the experimental approach, pressure-fed lubrication system, seeded fault contamination plan, and test results. The main result of the 6-month test program was demonstrated classification of multiple contaminants below the condemning limit of each.

Key Words: Lubricant Contamination, Lubricant Analytical Techniques, Condition Monitoring, Internal Combustion Engine and Oils, Equipment Monitoring.

摘要
本文總結(jié)了作者對石油質(zhì)量傳感器的應(yīng)用與測試。當(dāng)機(jī)器處于高速運(yùn)轉(zhuǎn)狀態(tài)時，燃油保持正常的流動性是至關(guān)重要的。因此在本文中，作者描述了石油感應(yīng)原理，而且在實踐中驗證了石油質(zhì)量傳感器自動檢測石油質(zhì)量的能力，并詳細(xì)而精確地對石油污染物進(jìn)行了分類。該傳感器能進(jìn)行流體檢測，能根據(jù)化學(xué)規(guī)律對污染物進(jìn)行分類，并能具體地估計污染物變化趨勢，實施更高層次的通信協(xié)議，從而最終檢測出石油的質(zhì)量或污染程度。正如作者測試時所做的一樣，石油質(zhì)量監(jiān)控系統(tǒng)的傳感器設(shè)計成一個能夠直接插入油管的塞子。作者還提出了對實驗方法、壓力反饋潤滑系統(tǒng)和預(yù)防污染的總體看法以及測試結(jié)果。同時作者對石油質(zhì)量檢測系統(tǒng)進(jìn)行了為期6個月測試，并在石油的變質(zhì)界限下驗證了多個污染物的分類。
關(guān)鍵詞：潤滑油污染，潤滑油分析技術(shù)，狀態(tài)監(jiān)測和內(nèi)燃機(jī)油，設(shè)備監(jiān)控