gimbal lock

Noun

 * 1) The loss of one degree of freedom in the three-dimensional rotational movement of a three-gimbal mechanism, which occurs when the axes of two of the three gimbals are driven into a parallel configuration, so that the system's rotational movement becomes two-dimensional (and necessarily remains so until an appropriate force is applied); the equivalent situation in a simulation of rotational movement, when the mathematical model uses Euler angles (representing pitch, yaw and roll) or their equivalent.
 * 2) * 2010, S. Nagabhushana, L. K. Sudha, Aircraft Instrumentation and Systems, I. K. International Publishing House, page 249,
 * Such a strap down system reduces the cost, eliminates gimbals and associated gimbal locks, and enhances the reliability (MTBF) by having no moving elements.
 * Such a strap down system reduces the cost, eliminates gimbals and associated gimbal locks, and enhances the reliability (MTBF) by having no moving elements.

Translations

 * Finnish: lukittuminen