Patent ID: 9561848
Date: 2017-02-07
CPC Classifications: B64C,G01B,G01D

Claim:
1. An aircraft landing gear, comprising: a rotatable rotary steering tube which is connected with a landing gear wheel so that a steering deflection of the landing gear wheel is achieved by rotating the rotary steering tube; a landing gear computer; and a measuring arrangement for contactless steering angle measurement of the landing gear wheel, the measuring arrangement including at least two sensors and a measuring scale being made of a permanent-magnetic material and having multiple tracks including a correction track and one or more other tracks and a magnetic signature, wherein the correction track is configured to compensate axial displacements of the rotary steering tube, wherein each of the at least two sensors detects a measurement signal from the correction track and a measurement signal from each of the one or more other tracks and transmits the measurement signals from the correction track and the one or more other tracks to the landing gear computer wherein for each one of the sensors the landing gear computer is configured to compensate the measurement signal from each of the one or more other tracks based on a deviation of the measurement signal from the correction track of a respective one of the sensors, the deviation occurring due to an axial displacement of the measuring scale, wherein each of the at least two sensors includes at least one reading head per track of the multiple tracks and is configured to scan the multiple tracks in parallel such that each of the multiple tracks is scanned by multiple reading heads, and wherein the measuring scale is directly fixed to the rotary steering tube.