In-Line Oil Debris Monitor (ODM) for the Advanced Tactical Fighter Engine

The development of an in-line, full flow oil debris sensor for the F119-PW-100 Advanced Tactical Fighter Engine is described. The sensor continuously counts and sizes wear metal particles, both ferrous and non-ferrous, in the main oil supply line of the engine. The design requirements, principle of operation, mechanical design features and electronic design features of the sensor are discussed. The performance characteristics of the sensor as measured during development testing are also presented.