Active oil debris monitor particle detection and monitoring system
AssigneeUnited Technologies Corporation
InventorsEdward Thomas Rocco, Sheridon Everette Haye
Life of this patent
Estimating the term…
Abstract
A method for determining the presence of a particle while actively calculating and monitoring oil debris monitor phase angle in an oil system including collecting I and Q channel data from an oil debris monitor sensor; determining whether the I and Q data is symmetric; processing the I and Q channel data to identify a ferrous and nonferrous signal in response to the I and Q data being symmetric; processing the ferrous and nonferrous signals to determine if a particle is present; determining a symmetry factor from the I and Q channel data in response to the particle being present and confirming that the particle is present from the symmetry factor.
Claims19
A method for determining the presence of a particle while actively calculating and monitoring oil debris monitor phase angle in an oil system, comprising:
- a) collecting I and Q channel data from an oil debris monitor sensor;
- b) determining whether the I and Q data is symmetric;
- c) processing the I and Q channel data to identify a ferrous and nonferrous signal in response to the I and Q data being symmetric in step b);
- d) processing the ferrous and nonferrous signals to determine if a particle is present;
- e) determining a symmetry factor from the I and Q channel data in response to the possibility that the particle is present in step d);
- and
- f) confirming that the particle is present from the symmetry factor.
An oil system for a gas turbine engine, comprising:
- an oil flow path;
- an in-line oil debris monitor sensor;
- and
- a control system in communication with the in-line oil debris monitor sensor to determine whether a particle is present from a symmetry factor of the I and Q channel data.
Dependencies are inferred from the claim text.