X-Ray Fluorescence Gets Glowing Reports in Engine Debris Analysis

Researchers from AFRL and industry partner GasTOPS, Inc., successfully demonstrated this prototype engine lubricant analyzer, which employs X-ray fluorescence technology. The XRF analyzer uses data from an aircraft engine's magnetic chip detectors to assess the levels and types of particulate debris captured (AFRL image).

X-Ray Fluorescence Gets Glowing Reports in Engine Debris Analysis

Published Sept. 21, 2009
By Thomas Brown
Propulsion

WRIGHT-PATTERSON AIR FORCE BASE, Ohio -- Successful demonstration of a prototype lubricant analyzer based on X-ray fluorescence technology propels Air Force Research Laboratory and industry partner GasTOPS, Inc., ever closer to enabling better detection of early-stage engine failure caused by debris. The XRF analyzer uses data collected from the engine's magnetic chip detectors to evaluate engine debris levels and types, providing critical status regarding the amount of captured particles, as well as their alloy composition.

Intended as a replacement for the scanning electron microscope technology currently used to perform F110 engine debris analysis, the XRF analyzer is less expensive and more rugged than the SEM. It also has a smaller logistical footprint; the analyzer's small size and capacity to run on standard 120 V power enable its forward deployment to temporary operating locations. Estimates suggest that replacing SEMs with XRF analyzers could net annual cost savings of $2.5 million.

The XRF analyzer originated as an AFRL in-house project, with researchers from the lab and the University of Dayton Research Institute (Ohio) building and demonstrating the first prototype. The concept ultimately transitioned to GasTOPS via a contract funded under the Air Force Reduction of Total Ownership Cost program.