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公开(公告)号：US20180024270A1
公开(公告)日：2018-01-25
申请号：US15216398
申请日：2016-07-21
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
CPC classification number: G01W1/00 , G01N15/0211 , G01S7/4802 , G01S7/4815 , G01S7/4818 , G01S7/499 , G01S17/95 , Y02A90/19
Abstract: Apparatus and associated methods relate to sampling a large volume of a cloud atmosphere so as to obtain a large signal response from even a sparse distribution of water droplets in the cloud atmosphere. Such a volume can be probed by projecting an uncollimated optical beam into the cloud atmosphere and sampling the signal backscattered from the water droplets located within the probed volume. The uncollimated optical beam can be generated by projecting a diverging pulse of light energy from a polished end of a first optical fiber. A second optical fiber can be used to receive the optical signal backscattered from the cloud atmosphere. The second optical fiber can also have substantially the same field of view as the first optical fiber, so as to receive signals from a volume of the cloud atmosphere that is substantially commensurate with the probed volume.
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公开(公告)号：US20180024036A1
公开(公告)日：2018-01-25
申请号：US15216340
申请日：2016-07-21
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
CPC classification number: G01N15/0211 , G01N2015/0046 , G01S7/4812 , G01S7/499 , G01S17/95 , G01W1/00 , Y02A90/19
Abstract: Apparatus and associated methods relate to determining sizes of water particles in a cloud atmosphere based on a detected portion of signals generated from a single monochromatic source and backscattered by water particles in a cloud atmosphere. A backscatter coefficient and an optical extinction coefficient are calculated, based on the detected portion of signals generated from the monochromatic source and backscattered by water particles in the cloud atmosphere. A LIDAR ratio—a ratio of the optical extinction coefficient to the backscatter coefficient, is calculated. Sizes of water particles in the cloud atmosphere are estimated based on the LIDAR ratio. An output signal indicative of the estimated sizes of water particles in the cloud atmosphere is generated. Estimating sizes of water particles using signals from a single monochromatic source advantageously can alert a pilot of an aircraft of cloud conditions, without requiring multi-chromatic sources.
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公开(公告)号：US09096323B1
公开(公告)日：2015-08-04
申请号：US14250206
申请日：2014-04-10
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
IPC: G01J4/00 , B64D15/20 , G01N21/958
CPC classification number: B64D15/20 , G01N21/15 , G01N21/21 , G01N21/94 , G01N21/958 , G01N2021/157 , G01N2021/8848 , G01N2021/945 , G02B27/0006
Abstract: A system for detecting contamination of a window of an optical system includes a polarizing beamsplitter, a quarter waveplate, a photodetector, and a processor. The polarizing beamsplitter is configured to receive a laser beam having a first polarization and reflect the laser beam having the first polarization to the window. The photodetector is configured to sense a magnitude of reflections of the laser beam from the window having a second polarization, wherein the polarizing beamsplitter passes the reflections of the laser beam from the window having the second polarization to the photodetector. The processor is configured to determine a contamination level of the window based upon the magnitude of the reflections of the laser beam from the window.
Abstract translation: 用于检测光学系统的窗口的污染的系统包括偏振分束器，四分之一波片，光电检测器和处理器。 偏振分束器被配置为接收具有第一偏振的激光束并且将具有第一偏振度的激光束反射到窗口。 光电检测器被配置为感测来自具有第二偏振的窗口的激光束的反射的大小，其中偏振分束器将具有第二偏振的窗口的激光束的反射通过到光电检测器。 处理器被配置为基于来自窗口的激光束的反射的大小来确定窗口的污染水平。
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公开(公告)号：US20240329212A1
公开(公告)日：2024-10-03
申请号：US18126612
申请日：2023-03-27
Applicant: Rosemount Aerospace Inc.
Inventor： Vincent R. LoPresto , Mark D. Ray , Kaare Josef Anderson
IPC: G01S7/4861 , G01S7/481 , G01S17/04 , G01S17/88 , G01S7/497
CPC classification number: G01S7/4861 , G01S7/4811 , G01S17/04 , G01S17/88 , G01S2007/4975
Abstract: A method includes checking an optical detector with a field of view for degradation by: directing the optical detector to a surface of an object in the field of view, wherein the surface is positioned at a given distance from the optical detector, and wherein the surface has a known reflectance; detecting an optical return from the surface with the optical detector to generate a return signal; and determining whether the return signal is representative of a degraded signal. The method includes outputting an alert for maintenance action if the return signal is indicative of a degraded signal.
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公开(公告)号：US20240167426A1
公开(公告)日：2024-05-23
申请号：US17991104
申请日：2022-11-21
Applicant: Rosemount Aerospace Inc.
Inventor： David L. Lincoln , Longke Wang , Jordan A. Snyder , Rodrigo Castillo-Garza , Sean C. Emerson , Darren G. Jackson , Mark D. Ray , Kaare Josef Anderson
CPC classification number: F02C9/28 , G06V20/56 , G08G5/0039
Abstract: A system includes a first sensor positioned to sense presence of a contrail in a first volume, wherein the first volume at least partially overlaps an expected volume of a contrail proximate an aircraft. A second sensor is positioned to sense a background reference in a second volume, where the second volume does not overlap the expected volume of a contrail proximate an aircraft. A controller is operatively connected to the first and second sensors. The controller includes machine readable instructions configured to cause the controller to utilize data input from both the first and second volumes to determine if a contrail is present from the aircraft. A system includes machine readable instructions configured to cause the controller to predict persistence of contrails on an intended route through the volume of airspace and to determine an improved route and/or propulsion operation to reduce contrail formation and persistence relative to the intended route.
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Patent Agency Ranking
公开(公告)号：US20240151832A1
公开(公告)日：2024-05-09
申请号：US17982197
申请日：2022-11-07
Applicant: Rosemount Aerospace Inc.
Inventor： Vincent R. LoPresto , Kaare Josef Anderson , Mark D. Ray
CPC classification number: G01S7/497 , B64D15/20 , B64D45/00 , G01S17/95 , B64D2045/0085
Abstract: In accordance with at least one aspect of this disclosure, a method of detecting a fault in a plurality of optical detectors includes receiving a first return beam from a first optical detector interrogation beam to generate a first optical signal indicative of an atmospheric condition from a first location on board the aircraft and receiving a second return beam from a second optical detector interrogation beam to generate a second optical signal indicative of the atmospheric condition from a second location on board the aircraft. The method includes, comparing each of the first and second optical signals with a baseline value to determine whether there is a fault in at least one optical detector of the plurality of optical detectors.
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公开(公告)号：US11808666B2
公开(公告)日：2023-11-07
申请号：US16823026
申请日：2020-03-18
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
CPC classification number: G01M9/04 , G01N21/474 , G01N21/532 , G01N2021/4709 , G01N2021/4742
Abstract: A system for determining parameters of a cloud atmosphere within a wind tunnel. The system includes: a light projector configured to project a pulse of light energy into a projection field of view; at least one light detector having a detection field of view that forms a range-limited intersection with the projection field of view, the range-limited intersection having a maximum sampling range so as to exclude wall structures of the wind tunnel, wherein the at least one light detector is configured to detect a backscattered portion of the projected pulse of light energy backscattered from within the range-limited intersection; and a cloud parameter calculator configured to determine parameters of the cloud atmosphere based on the backscattered portions detected.
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公开(公告)号：US11762040B2
公开(公告)日：2023-09-19
申请号：US17218060
申请日：2021-03-30
Applicant: Rosemount Aerospace Inc.
Inventor： Kaare Josef Anderson , Magdi A. Essawy
CPC classification number: G01R31/56 , G01P21/025 , G01R31/52 , B64D15/12 , B64D43/02 , G01F25/10 , G01P5/165 , G01P13/025
Abstract: Apparatus and associated methods relate to predicting failure and/or estimating remaining useful life of an air-data-probe heater. Failure is predicted or useful life is estimated based on an electrical metric of the electrical operating power provided to a resistive heating element of the air-data-probe heater. The electrical metric of the air data probe heater is one or more of: i) phase relation between voltage across the resistive heating element and leakage current, which is conducted from the resistive heating element to a conductive sheath surrounding the resistive heating element; ii) a time-domain profile of leakage current through the heating element insulation during a full power cycle; and/or iii) high-frequency components of the electrical current conducted by the resistive heating element and/or the voltage across the resistive heating element.
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公开(公告)号：US11630216B2
公开(公告)日：2023-04-18
申请号：US16549975
申请日：2019-08-23
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Jennifer M. Alexander , Kaare Josef Anderson , Darren G. Jackson
Abstract: Apparatus and associated methods relate to determining an effective size, quantity, shape, and type of water particles in a cloud atmosphere based on differences in amplitudes of optical signals backscattered at different backscattering angles. Off-axis backscattering—backscattering at angles other than 180 degrees—is affected by the effective size, quantity, shape, and type of water droplets. Detected amplitudes of optical signals that are backscattered at different angles are used to indicate the effective size, quantity, shape, and type of water particles in the cloud atmosphere. In some embodiments, optical emitters and detectors are configured to measure amplitudes of optical signals backscattered at backscattering angles of both on-axis—180 degrees—and off-axis varieties.
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公开(公告)号：US20220317203A1
公开(公告)日：2022-10-06
申请号：US17218066
申请日：2021-03-30
Applicant: Rosemount Aerospace Inc.
Inventor： Kaare Josef Anderson , Magdi A Essawy
Abstract: Apparatus and associated methods relate to predicting failure and/or estimating remaining useful life of an air-data-probe heater. Failure is predicted or useful life is estimated based on an electrical metric of the electrical operating power provided to a resistive heating element of the air-data-probe heater. The electrical metric of the air data probe heater is one or more of: i) phase relation between voltage across the resistive heating element and leakage current, which is conducted from the resistive heating element to a conductive sheath surrounding the resistive heating element; ii) a time-domain profile of leakage current through the heating element insulation during a full power cycle; and/or iii) high-frequency components of the electrical current conducted by the resistive heating element and/or the voltage across the resistive heating element.
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