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US 12,145,721 B2Granted
Anisotropic magneto-resistive sensor flap measuring systems
AssigneeTextron Innovations Inc.
InventorsKyle Thomas Cravener, Patrick Smith, Troy Cyril Schank, Brady Garrett Atkins, Kynn Jerald Schulte
Life of this patent
Estimating the term…
Abstract
A rotor-hub flap-measurement system includes a rotor hub operable to flap relative to a main-rotor axis, a flap-linkage arm, a first end of the flap-linkage arm rotatably coupled to the rotor hub, the flap-linkage arm responsive to flapping of the rotor hub, and a magneto-resistive sensor system rotatably coupled to a second end of the flap-linkage arm and responsive to movement of the flap-linkage arm.
Claims20
A rotor-hub flap-measurement system comprising:
- a rotor hub operable to flap relative to a main-rotor axis;
- a flap-linkage arm, a first end of the flap-linkage arm rotatably coupled to the rotor hub, the flap-linkage arm responsive to flapping of the rotor hub;
- and
- a magneto-resistive sensor system rotatably coupled to a second end of the flap-linkage arm and responsive to movement of the flap-linkage arm;
- wherein the magneto-resistive sensor system comprises:
- a first magneto-resistive sensor;
- a second magneto-resistive sensor;
- and
- a magnet having a first side and a second side, wherein the magnet is positioned between the first magneto-resistive sensor and the second magneto-resistive sensor such that the first side of the magnet is directly adjacent the first magneto-resistive sensor and the second side of the magnet is directly adjacent the second magneto-resistive sensor.
6 more elements
A rotor-hub flap-measurement method comprising:
- flapping, by a rotor hub, relative to a main-rotor axis;
- responsive to the flapping, a first end of a flap-linkage arm rotatably coupled to the rotor hub moving, at least in part, parallel to the main-rotor axis;
- and
- responsive to the moving by the flap-linkage arm, a magneto-resistive sensor system rotatably coupled to a second end of the flap-linkage arm sensing movement of the flap-linkage arm;
- wherein the magneto-resistive sensor system comprises:
- a first magneto-resistive sensor;
- a second magneto-resistive sensor;
- and
- a magnet having a first side and a second side, wherein the magnet is positioned between the first magneto-resistive sensor and the second magneto-resistive sensor such that the first side of the magnet is directly adjacent the first magneto-resistive sensor and the second side of the magnet is directly adjacent the second magneto-resistive sensor.
6 more elements
Dependencies are inferred from the claim text.