| 摘要 |
<p>A stabilised mount [e.g. for an antenna (13)] has two gyroscopic rotors (23, 24) mounted in such a way that they can pivot about orthogonal axes (26, 27). Rewinding of the antenna (13) (to avoid undue twisting of the electrical cables) is liable to cause a violent destabilisation of the mount because of the gyroscopic action of the rotors (23, 24). To prevent this destabilisation the rotors (23, 24) are locked against the aforementioned pivotting action during the rewinding procedure.</p> |
