Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Ferrographic Analysis
Author: Daniel P. Anderson, Robert H. Emmel
Source: American Gas Association 1982
Year Published: 1982
Abstract: Ferrography, a technique to separate particles from fluids for microscopic examination and subsequent analysis, was originally developed to magnetically precipitate ferrous wear particles from lubricating oils, thus the name ferrography. The first application was to condition-monitor military aircraft engines, but now other applications have emerged, including modification of the method to precipitate nonmagnetic particles from both oil and other fluids. Three instruments are available for ferrographic analysis. The direct-reading (DR) ferrograph provides information on the concentration and size distribution of fluidborne wear particles. The latest addition to ferrographic instrumentation is the on-line ferrograph, which is a compact, lightweight sensor unit plumbed into a machines oil system. An electronic control and display package is remote from the sensor. The on-line ferrograph provides the same type of information as the DR ferrograph, but does so on a continuous basis. The analytical ferrograph, which is the predecessor of both of the previously mentioned quantitative instruments, is used to prepare a ferrogram which is subsequently examined using a bichromatic microscope.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.