公开(公告)号：EP3760839A1

公开(公告)日：2021-01-06

申请号：EP20182692.2

申请日：2020-06-26

申请人： Raytheon Technologies Corporation

发明人： LINCOLN, David L. ,  SCHMIDT, Wayde R. ,  BIRNKRANT, Michael J. ,  GORSKI, Michael T. ,  GILSON, Jonathan ,  WANG, Xuemei ,  WOOD, Coy Bruce

IPC分类号： F01D21/00 ,  G01N15/02 ,  G01N21/62

摘要： A particulate sensor assembly (200, 300) comprises a housing (308) having a sensor face (306) and a multi-angle multi-wave array (302, 302') that comprises a first set of sensing elements (304), a second set of sensing elements, and a third set of sensing elements, wherein the first set of sensing elements, the second set of sensing elements, and the third set of sensing elements are collectively configured to detect and discriminate between categories of foreign object debris including solid objects and particulates including silicate sand, water vapor, dust, volcanic ash, and smoke, and wherein the first set of sensing elements comprises different light sensors and light sources.

公开(公告)号：EP4009031A1

公开(公告)日：2022-06-08

申请号：EP21211598.4

申请日：2021-12-01

申请人： Raytheon Technologies Corporation

发明人： LINCOLN, David L. ,  WANG, Xuemei ,  GAVRILOVSKI, Alek ,  GORSKI, Michael T.

IPC分类号： G01N15/02

摘要： An optical particulate detection system for an aircraft is provided. The optical particulate detection system includes an optical particulate detector (200) and a controller (102). The optical particulate detector (200) includes at least two optical sources (202) and at least one optical sensor (204) distributed in series with respect to a flow path (350) of a component surface of the aircraft. The controller (102) is configured to interface with the optical particulate detector (200), monitor the at least one optical sensor (204), and characterize one or more particles of foreign object debris (1006) based on a pulse width and two or more scattering ratios determined with respect to light emitted from the at least two optical sources (202).