gimbal lock


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gimbal lock

[′gim·bəl ‚läk]
(engineering)
A condition of a two-degree-of-freedom gyro wherein the alignment of the spin axis with an axis of freedom deprives the gyro of a degree-of-freedom and therefore its useful properties.

gimbal lock

gimbal lock
Inner and outer gimbals are in the same plane.
A situation in which two gimbals coincide in the same plane. This results in the restriction on the freedom of movement of a gyroscope, robbing it of its useful properties.
References in periodicals archive ?
The motion is more or less alt-azimuth, but you get plenty of extra range in any direction, completely eliminating "Dob's hole" or the north-south gimbal lock in equatorial mounts.
The joint mimics the motion of a wrist, Rosheim said, giving access to any point within a hemispherical envelope without singularity or "gimbal lock."