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公开(公告)号:US11897619B2
公开(公告)日:2024-02-13
申请号:US17532677
申请日:2021-11-22
Applicant: Rosemount Aerospace Inc.
Inventor: Brian Brent Naslund , Jeremy S. Burns , Matthew Webb , Jason Lee Skoglund , Vincent R. LoPresto , Darren G. Jackson
CPC classification number: B64D15/20 , B64D15/12 , B64D2045/0085
Abstract: A method of monitoring an ice protection system of a rotorcraft or an aircraft includes applying heat to rotating blades of the rotorcraft or the aircraft according to a heater duty cycle and determining an anticipated ice shed time for ice to shed from the rotating blades. Torque of the rotating blades is sensed, and an actual ice shed time for ice to shed from the rotating blades is determined based on the sensed torque. A status of the ice protection system is determined based on the anticipated ice shed time and the actual ice shed time, and the status of the ice protection system is output for consumption by a consuming system.
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公开(公告)号:US20230159172A1
公开(公告)日:2023-05-25
申请号:US17532677
申请日:2021-11-22
Applicant: Rosemount Aerospace Inc.
Inventor: Brian Brent Naslund , Jeremy S. Burns , Matthew Webb , Jason Lee Skoglund , Vincent R. LoPresto , Darren G. Jackson
CPC classification number: B64D15/20 , B64D15/12 , B64D2045/0085
Abstract: A method of monitoring an ice protection system of a rotorcraft or an aircraft includes applying heat to rotating blades of the rotorcraft or the aircraft according to a heater duty cycle and determining an anticipated ice shed time for ice to shed from the rotating blades. Torque of the rotating blades is sensed, and an actual ice shed time for ice to shed from the rotating blades is determined based on the sensed torque. A status of the ice protection system is determined based on the anticipated ice shed time and the actual ice shed time, and the status of the ice protection system is output for consumption by a consuming system.
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公开(公告)号:US10435161B1
公开(公告)日:2019-10-08
申请号:US15969111
申请日:2018-05-02
Applicant: Rosemount Aerospace Inc.
Inventor: Vincent R. LoPresto , Matthew Webb
Abstract: Apparatus and associated methods relate to differentiating ice accretion caused by different supercooled water droplets on an airfoil of an aircraft. A sensor having a sensing surface region is mounted at a mounting location of the airfoil such that the sensing surface region is flush with a surrounding adjacent surface of the airfoil. Water particles of sizes less than or equal to a predetermined threshold do not impinge the sensor surface region at the mounting location when the aircraft is in flight. A sensor driver provides an excitation signal to the sensor. A signal detector detects a sensor signal responsive to the provided excitation signal. The sensor signal is indicative of water particles exceeding the predetermined threshold impinging the sensing surface region. In some embodiments, the sensing surface region is mechanically coupled to a resonant cavity. In other embodiments, the sensor is a surface resistance sensor configured to sense surface resistance.
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14.
公开(公告)号:US20170369177A1
公开(公告)日:2017-12-28
申请号:US15195833
申请日:2016-06-28
Applicant: Rosemount Aerospace Inc.
Inventor: Vincent R. LoPresto , Brian Daniel Matheis
CPC classification number: B64D15/20 , B64D45/00 , B64D47/08 , G01N15/0227 , G08B19/02
Abstract: Apparatus and associated methods relate to determining, based on a spatial extent of ice accretion, whether an atmosphere contains super-cooled water droplets that equal and/or exceed a predetermined size. A convex-shaped housing is mounted to an aircraft and exposed to an airstream. The convex-shaped housing has a testing region that is monitored for ice accretion by an ice detector. A boundary locator determines a specific location to be tested within the testing region. The determined specific location corresponds to a calculated boundary that separates an ice-accretion region from an ice-free region if the atmosphere contains super-cooled water droplets up to the predetermined size. If the ice detector detects ice accretion at the determined specific location, an alert is generated. The alert can advantageously inform a pilot of an atmosphere containing super-cooled water droplets that equal or exceed the predetermined size.
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15.
公开(公告)号:US20170369176A1
公开(公告)日:2017-12-28
申请号:US15195811
申请日:2016-06-28
Applicant: Rosemount Aerospace Inc.
Inventor: Vincent R. LoPresto
CPC classification number: B64D15/20 , B64D45/00 , B64D47/08 , G01P13/025 , G08B19/02
Abstract: Apparatus and associated methods relate to determining, based on a spatial extent of ice accretion, a maximum size of super-cooled droplets contained in an atmosphere and/or if an atmosphere contains super-cooled water droplets that equal and/or exceed a predetermined size. A testing region on an exterior surface of an aircraft is monitored for ice accretion by an ice detector. A boundary calculator determines a specific location to be tested within the testing region. The determined specific location corresponds to a calculated boundary that separates an ice-accretion region from an ice-free region if the atmosphere contains super-cooled water droplets of no larger than the predetermined size. If the ice detector detects ice accretion at the determined specific location, an alert is generated. The alert can advantageously inform a pilot of the aircraft that the atmosphere contains super-cooled water droplets that equal or exceed the predetermined size.
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