Abstract: Technologies for engine fluid quality monitoring are disclosed herein. An engine system includes a sensor and an engine controller. The sensor generates sensor data indicative of a fluid property of engine fluid of a gas turbine engine of the engine system. The engine fluid may be engine oil or fuel. The fluid quality may be viscosity, water content, calorific content, specific gravity, heating value, or the presence of contaminants in the engine fluid. The engine controller determines the fluid property based on the sensor data and outputs the fluid property. The fluid property may be stored in non-volatile storage. A user alert such as a cockpit alert may be generated based on the fluid property. A control law of the gas turbine engine may be modified as a function of the fluid property. The engine controller may include the sensor.

Abstract: Technologies for engine fluid quality monitoring are disclosed herein. An engine system includes a gas turbine engine having one or more mechanical components, a fluid quality sensing system, and an engine controller. Each mechanical component includes a tracer material embedded in the mechanical component during manufacture. The fluid quality sensing system applies a laser beam to debris captured in an engine fluid of the gas turbine engine and detects a light signature generated by tracer material in the debris in response to application of the laser beam. The engine controller identifies the tracer material as a function of the light signature. The engine controller determines a potential wear state of a mechanical component as a function of the tracer material. The engine controller may select the mechanical component from multiple mechanical components based on the tracer material. Each mechanical component has a predetermined association with a corresponding tracer material.