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首页> 外文会议>A critical link: Diagnosis to prognosis >Rotrode filter spectroscopy revisited-a method for multi-elemental analysis of particles in used oil
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Rotrode filter spectroscopy revisited-a method for multi-elemental analysis of particles in used oil

机译：再次介绍了Rotrode过滤器光谱-一种用于废油中颗粒的多元素分析的方法

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摘要

A convenient and economical metod has been developed to provide spectrometric analysis of the wear and contaminant particles in used oil samples. It has been recognized for some time that spectroscopy is more or less blind to the larger particles in an oil sample, precisely those particles which are sometimes most indicative of an abnormal wear mode. The rotrode filter spectroscopy (RFS) method makes use of the fact that the carbon disc electrode used in a rotating disc electrode (RDE) spectrometer is itself porous and may be used as a filter. A fixture was designed so that used oil sample is pulled through the disc which is then washed with solvent thus retaining only particulates on the outer circumference of the disc. The disc is subsequently "burned" on a spectrometer providing an analysis for larger particulates in a sample as apart from molecular material and very samall particles in the oil sample as would be obtained by conventional spectrometric analysis. The RFS method is gaining acceptance in commercial and industrial laboratories. The method and an example of its application in a predictive maintenance program will be described.
机译：已经开发了一种方便且经济的方法来对废油样品中的磨损和污染物颗粒进行光谱分析。一段时间以来，人们已经认识到，光谱学或多或少地对油样中的较大颗粒是看不见的，恰恰是有时最能指示异常磨损模式的那些颗粒。旋转电极滤光片光谱法（RFS）方法利用了以下事实：在旋转盘电极（RDE）光谱仪中使用的碳盘电极本身是多孔的，可以用作滤光片。设计了一个固定装置，使用过的油样被拉过圆盘，然后用溶剂清洗，从而仅将微粒保留在圆盘的外圆周上。随后，将圆盘在光谱仪上“燃烧”，以提供对样品中较大颗粒的分析，该分析除了可以通过常规光谱分析获得的分子材料和油样品中的非常小的颗粒之外。 RFS方法已在商业和工业实验室中得到认可。将描述该方法及其在预测维护程序中的应用示例。

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