A blade angle feedback system (200) for an aircraft-bladed rotor (130) rotatable about a longitudinal axis (A) and having an adjustable blade pitch angle is provided. A feedback device (204) is coupled to rotate with the rotor (130) and to move along the axis (A) with adjustment of the blade angle. At least one position marker (420) is affixed to a core of the feedback device (204) and extends along a direction angled relative to the axis (A). The core is made of a first material (504) having a first magnetic permeability and the position marker (420) comprises a second material (502) having a second magnetic permeability greater than the first magnetic permeability. A sensor (212) is positioned adjacent the feedback device (204) and produces, as the feedback device (204) rotates about the axis (A), a sensor signal in response to detecting passage of the position marker (420). A control unit (220) generates a feedback signal indicative of the blade angle in response to the sensor signal.
SIGNAL AMPLIFICATION IN BLADE ANGLE POSITION FEEDBACK SYSTEM
SIGNALVERSTÄRKUNG IN EINEM SYSTEM ZUR RÜCKMELDUNG DER SCHAUFELWINKELPOSITION
AMPLIFICATION DE SIGNAUX DANS UN SYSTÈME DE RÉTROACTION DE POSITION D'ANGLE DE PALE
2021-03-10
Patent
Elektronische Ressource
Englisch
IPC: | B64C AEROPLANES , Flugzeuge / G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes |
Signal amplification in blade angle position feedback system
Europäisches Patentamt | 2023
|SIGNAL AMPLIFICATION IN BLADE ANGLE POSITION FEEDBACK SYSTEM
Europäisches Patentamt | 2021
|BLADE ANGLE POSITION FEEDBACK SYSTEM WITH OFFSET SENSORS
Europäisches Patentamt | 2020
|BLADE ANGLE POSITION FEEDBACK SYSTEM WITH MAGNETIC SHIELD
Europäisches Patentamt | 2021
|BLADE ANGLE POSITION FEEDBACK SYSTEM WITH OFFSET SENSORS
Europäisches Patentamt | 2024
|