G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 11/27 (2006.01) B63B 39/00 (2006.01) B64D 45/00 (2006.01) B64D 47/00 (2006.01)
Patent
CA 2550034
An apparatus for sensing mis-alignment between an aircraft inertial reference frame and a reference frame of an attached sensor is disclosed. The apparatus includes a first laser mounted on the sensor and in the center of and normal to a first measuring surface; and, a second laser also mounted on the sensor perpendicular to the first laser and in the center of and normal to a second measuring surface. A first reflector is mounted to and aligned with the inertial reference frame of the aircraft and is disposed for reflecting a beam of light from the first laser, whereby misalignment in roll and yaw between the sensor and the aircraft is reflected on the first measuring surface. In a similar manner, a second reflector is mounted to and aligned with the inertial reference frame of the aircraft and perpendicular to the first reflector, and is disposed for reflecting a beam of light from the second laser, whereby misalignment in roll and pitch between the sensor and the aircraft is reflected on the second measuring surface. The misalignment bias may later be read manually or electronically, and then used by the aircraft's or sensor's computer system to compensate for the misalignment bias.
Carvajal Joaquin E.
Checcia William R.
Foroglou Gregory
Hoffman Scott E.
Mcmillan Donald R.
Gowling Lafleur Henderson Llp
Northrop Grumman Corporation
Northrop Grumman Systems Corporation
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