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公开(公告)号：US20170356998A1
公开(公告)日：2017-12-14
申请号：US15176659
申请日：2016-06-08
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Mark Sherwood Miller
Abstract: An aircraft ice detection system is configured to determine a condition of a cloud and includes a radar system, a lidar system, optics and a dichroic filter. The radar system is configured to project quasi-optical radiation to the cloud and receive reflected quasi-optical radiation from the cloud. The lidar system is configured to project optical radiation to the cloud and receive reflected optical radiation from the cloud. The optics are configured to direct the quasi-optical radiation and the optical radiation to the cloud and receive the reflected quasi-optical radiation and the reflected optical radiation from the cloud. The dichroic filter is configured to direct the quasi-optical radiation from the radar system to the optics, direct the optical radiation from the lidar system to the optics, direct the reflected quasi-optical radiation from the optics to the radar system and direct the reflected optical radiation from the optics to the lidar system.
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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：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：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：US11480530B2
公开(公告)日：2022-10-25
申请号：US17225985
申请日：2021-04-08
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Darren G. Jackson
Abstract: Apparatus and associated methods relate to a system for detecting foreign object debris ingested into an aircraft engine. The system detects such foreign object debris by projecting a beam of light over an inlet of the aircraft engine. When foreign object debris is ingested into the aircraft engine, it intercepts the beam of light and scatters a back-scattered portion of the intercepted beam of light. An optical detector is configured to detect the back-scattered portion of the intercepted beam of light. A processor is configured to determine whether foreign object debris is ingested by the aircraft engine based on a comparison of a threshold value with a signal indicative of the back-scattered portion generated by the optical detector.
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Patent Agency Ranking
公开(公告)号：US11137519B2
公开(公告)日：2021-10-05
申请号：US15216398
申请日：2016-07-21
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
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：US20210293659A1
公开(公告)日：2021-09-23
申请号：US16823026
申请日：2020-03-18
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
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：US20210055422A1
公开(公告)日：2021-02-25
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：US10816661B2
公开(公告)日：2020-10-27
申请号：US15176644
申请日：2016-06-08
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Mark Sherwood Miller
Abstract: An aircraft ice detection system is configured to determine a condition of a cloud and includes a radar transmitter, a radar receiver, optics and a splitter. The radar transmitter is configured to produce quasi-optical radiation. The optics are configured to direct the quasi-optical radiation from the radar transmitter to the cloud and receive reflected quasi-optical radiation from the cloud. The radar receiver is configured to receive the reflected quasi-optical radiation from the optics and the splitter is configured to direct the reflected quasi-optical radiation from the optics to the radar receiver.
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公开(公告)号：US10656084B2
公开(公告)日：2020-05-19
申请号：US16008833
申请日：2018-06-14
Applicant: Rosemount Aerospace Inc.
Inventor： Mark Ray , Kaare Josef Anderson
Abstract: Apparatus and associated methods relate to reliably determining both size of large water droplets and density of small water droplets in a multi-modal cloud atmosphere. A pulsed beam of light is projected into the cloud atmosphere and a receiver receives a reflected portion of the projected pulsed beam backscattered by the cloud atmosphere. The received reflected portion is split into first and second parts. First and second parts are directed to first and second detectors, each having a different gain. A ratio of the gains of the first and second detector is greater than 3:1, thereby providing a low-gain detector for producing unsaturated signals indicative of scintillation spike reflection by large water particles and a simultaneous high-gain detector for producing signals indicative of range-resolved reflections by numerous small water particles.
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