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公开(公告)号：US11714098B2
公开(公告)日：2023-08-01
申请号：US16391192
申请日：2019-04-22
发明人： Jaime Sly , Daniel W. Shannon , Brian Daniel Matheis , Todd Anthony Ell , William Kunik , Sudarshan N. Koushik
摘要： An ultrasonic air data system can include a pole having a length longer than a boundary layer thickness of a boundary layer flow such that at least a distal end of the pole is configured to extend outwardly from an aircraft surface to be at least partially outside of the boundary layer flow. The system can include a transmitter disposed on or in the pole at or near the distal end of the pole such that the transmitter is located at least partially outside of the boundary layer flow when in use, wherein the transmitter is configured to output a transmitter signal. The system can include one or more receivers disposed downstream of the pole as defined by the boundary layer flow and configured to receive the transmitter signal.
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公开(公告)号：US11125770B2
公开(公告)日：2021-09-21
申请号：US16211913
申请日：2018-12-06
摘要： An acoustic air data sensor for an aircraft includes an acoustic transmitter, an acoustic receiver, an acoustic signal generator, timing circuitry, speed of sound determination circuity, and communication circuitry. The acoustic transmitter is located to transmit an acoustic signal through an airflow stagnation chamber that is pneumatically connected to an exterior of the aircraft and configured to receive and stagnate airflow from the exterior of the aircraft. The acoustic receiver is positioned at a distance from the acoustic transmitter to receive the acoustic signal. The pulse generator causes the acoustic transmitter to provide the acoustic signal. The timing circuitry determines a time of flight of the acoustic signal from the acoustic transmitter to the acoustic receiver. The speed of sound determination circuity determines, based on the time of flight and the distance, a speed of sound through air in the stagnation chamber. The communication circuitry outputs the speed of sound.
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公开(公告)号：US11154904B2
公开(公告)日：2021-10-26
申请号：US16158894
申请日：2018-10-12
摘要： An ultrasonic air data system (UADS) can include a body configured to mount to an aircraft, an acoustic signal shaping feature associated with the body, and an acoustic source operatively connected to the acoustic signal shaping feature, the acoustic source configured to emit a directional acoustic signal. The acoustic signal shaping feature can be configured to reshape the directional acoustic signal from the acoustic source into an at least partially reshaped signal. The system can include one or more acoustic receivers disposed on or at least partially within the body for receiving the reshaped signal.
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公开(公告)号：US20200300882A1
公开(公告)日：2020-09-24
申请号：US16361005
申请日：2019-03-21
摘要： An acoustic air data sensing system includes an acoustic transmitter, a plurality of acoustic receivers, and a skin friction sensor. The acoustic transmitter is located to transmit an acoustic signal into airflow about an exterior of a vehicle. Each of the acoustic receivers is located at a respective angle from a wind angle reference line and a respective distance from the acoustic transmitter. The skin fiction sensor is positioned in a boundary layer region of the airflow that interacts with the acoustic receivers and transmitter. Based on time of flight values of the acoustic signal from the transmitter to each of the receivers and a skin friction measurement from the skin friction sensor as inputs to a transformation matrix, the acoustic air data sensing system outputs, from the transformation matrix, the true airspeed, the relative wind angle, and the speed of sound for operational control of the vehicle.
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公开(公告)号：US20230194561A1
公开(公告)日：2023-06-22
申请号：US18084923
申请日：2022-12-20
发明人： Daniel W. Shannon , Jeong-Woo Kim
摘要： A wave generator for an ultrasonic air data system can be configured to collect data derived from a flow of air in a downstream direction. The wave generator can include an ultrasonic wave source configured to output ultrasonic waves from a first end and a wave shaper connected to the first end of the ultrasonic wave source. The wave shaper can be configured to focus the ultrasonic waves into an area downstream from the ultrasonic wave source bounded by a first plane parallel to the downstream direction and a second plane orthogonal to the first plane.
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公开(公告)号：US20210293845A1
公开(公告)日：2021-09-23
申请号：US16158894
申请日：2018-10-12
IPC分类号： G01P5/24
摘要： An ultrasonic air data system (UADS) can include a body configured to mount to an aircraft, an acoustic signal shaping feature associated with the body, and an acoustic source operatively connected to the acoustic signal shaping feature, the acoustic source configured to emit a directional acoustic signal. The acoustic signal shaping feature can be configured to reshape the directional acoustic signal from the acoustic source into an at least partially reshaped signal. The system can include one or more acoustic receivers disposed on or at least partially within the body for receiving the reshaped signal.
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公开(公告)号：US20210078722A1
公开(公告)日：2021-03-18
申请号：US16211913
申请日：2018-12-06
摘要： An acoustic air data sensor for an aircraft includes an acoustic transmitter, an acoustic receiver, an acoustic signal generator, timing circuitry, speed of sound determination circuity, and communication circuitry. The acoustic transmitter is located to transmit an acoustic signal through an airflow stagnation chamber that is pneumatically connected to an exterior of the aircraft and configured to receive and stagnate airflow from the exterior of the aircraft. The acoustic receiver is positioned at a distance from the acoustic transmitter to receive the acoustic signal. The pulse generator causes the acoustic transmitter to provide the acoustic signal. The timing circuitry determines a time of flight of the acoustic signal from the acoustic transmitter to the acoustic receiver. The speed of sound determination circuity determines, based on the time of flight and the distance, a speed of sound through air in the stagnation chamber. The communication circuitry outputs the speed of sound.
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公开(公告)号：US10900990B2
公开(公告)日：2021-01-26
申请号：US16361005
申请日：2019-03-21
摘要： An acoustic air data sensing system includes an acoustic transmitter, a plurality of acoustic receivers, and a skin friction sensor. The acoustic transmitter is located to transmit an acoustic signal into airflow about an exterior of a vehicle. Each of the acoustic receivers is located at a respective angle from a wind angle reference line and a respective distance from the acoustic transmitter. The skin fiction sensor is positioned in a boundary layer region of the airflow that interacts with the acoustic receivers and transmitter. Based on time of flight values of the acoustic signal from the transmitter to each of the receivers and a skin friction measurement from the skin friction sensor as inputs to a transformation matrix, the acoustic air data sensing system outputs, from the transformation matrix, the true airspeed, the relative wind angle, and the speed of sound for operational control of the vehicle.
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公开(公告)号：US20200333371A1
公开(公告)日：2020-10-22
申请号：US16391192
申请日：2019-04-22
发明人： Jaime Sly , Daniel W. Shannon , Brian Daniel Matheis , Todd Anthony Ell , William Kunik , Sudarshan N. Koushik
摘要： An ultrasonic air data system can include a pole having a length longer than a boundary layer thickness of a boundary layer flow such that at least a distal end of the pole is configured to extend outwardly from an aircraft surface to be at least partially outside of the boundary layer flow. The system can include a transmitter disposed on or in the pole at or near the distal end of the pole such that the transmitter is located at least partially outside of the boundary layer flow when in use, wherein the transmitter is configured to output a transmitter signal. The system can include one or more receivers disposed downstream of the pole as defined by the boundary layer flow and configured to receive the transmitter signal.
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