Multi-passage oil debris monitor to increase detection capability in high oil flow systems
An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.
1. An oil debris monitoring sensor, comprising:
a housing; and
a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils for particle detection, wherein each set of coils comprises a respective first field coil, a sensor coil, and a second field coil.
2. The oil debris monitoring sensor as recited in claim 1 , wherein the multiple of passages within the housing comprises two or more passages.
3. The oil debris monitoring sensor as recited in claim 1 , wherein the housing is located in-line with an oil flow path that is in communication with a geared architecture of a gas turbine engine.
4. The oil debris monitoring sensor as recited in claim 1 , wherein a first set of coils around a first passage of the multiple of passages are wound in a different direction than a second set of coils around a second passage of the multiple of passages.
5. The oil debris monitoring sensor as recited in claim 4 , further comprising a dielectric between the first passage and the second passage.
6. An oil debris monitoring sensor, comprising:
a housing; and
a first passage within the housing along a first axis;
a first field coil, a sensor coil, and a second field coil around the first passage and along the first axis;
a second passage within the housing along a second axis parallel to the first axis; and
a first field coil, a sensor coil, and a second field coil around the second passage and along the second axis.
7. The oil debris monitoring sensor as recited in claim 6 , wherein the housing is located in-line with an oil flow path that is in communication with a geared architecture of a gas turbine engine.
8. The oil debris monitoring sensor as recited in claim 6 , wherein a first magnetic field generated by the first field coil around the first passage is in a first direction and a second magnetic field generated by the first field coil around the second passage is in a second direction opposite the first direction.
9. The oil debris monitoring sensor as recited in claim 6 , further comprising a dielectric between the first passage and the second passage.
10. A method for determining a presence of a particle in a system, comprising:
a) locating a housing in-line with an oil flow path;
b) communicating oil through a multiple of passages within the housing;
c) detecting a particle through processing data from each passage; and
d) isolating the particle to one of the multiple of passages within the housing wherein step d) comprises applying a channel isolation algorithm if a minimum voltage is not identified in response to the particular passing through the housing.
11. The method as recited in claim 10 , further comprising locating the oil flow path in communication with a geared architecture of a gas turbine engine.
12. The method as recited in claim 10 , wherein step d) comprises generating a first magnetic field around a first passage in a first direction and generating a second magnetic field around a second passage in a second direction opposite the first direction.
13. The method as recited in claim 10 , wherein step d) comprises determining an interference between a magnetic field associated with a first passage and a magnetic field associated with a second passage in response to the particle passing through the housing.
14. The method as recited in claim 10 , wherein step d) comprises determining whether a minimum amplitude in a second passage is within a predetermined range, and assessing whether a second particle is passing through the second passage.
15. A method for determining a presence of a particle in a system, comprising:
a) locating a housing in-line with an oil flow path;
b) communicating oil through a multiple of passages within the housing;
c) detecting a particle through processing data from each passage; and
d) isolating the particle to one of the multiple of passages within the housing, wherein step d) comprises applying a channel isolation algorithm if a minimum voltage is not identified.