横摇、下滑指示器

GLIDE SLOPE INDICATOR AND HORIZON REFERENCE BAR

介绍INTRODUCE 

当直升机驾驶员在接近船舶时，为了保证快速安全的着陆，稳定的下滑、横摇指示器（GSI&HRB）系统就成为基本的视觉辅助设备。

当直升机归航准备着舰时，要逐渐降低高度和减速。在距离船尾约1.5海里（或3海里）的地方，以相对地面4°的俯角下滑，在夜间或白天低能见度的情况下，直升机通过GSI下滑指示器的引导下滑到甲板一侧上空3-5m处时悬停，直升机驾驶员再通过HRB水平参考灯观看舰船甲板的运动情况，了解到平静期规律后，选择有利时机，即舰船甲板稳定期时进行着舰。

下滑指示器
GSI –GLIDE SLOPE INDICATOR

下滑指示器拥有一个光投射仪，它安装在一个三维自由的水密壳体中。这个光学设备能够产生三块区域红、绿、黄三种颜色的稳定光束，每个区域指引不同的接近路径：偏高，中间，偏低。光束可以围绕垂直轴和仰角进行调整。另外，相对于船的横向和纵向移动，下滑指示器始终保持稳定。

The GSI contains a light projector, which is mounted on a 3 degree of freedom platform in thewatertight enclosure. The optical guidance consists of a motion stabilized light beam composed by three sectors eachone indicating an approaching cone: over, centered, below the glide path.

The light beam can be oriented in azimuth (around the vertical axis) and elevationangles. In addition it is dynamically stabilized with respect to the pitch and roll ship motions.

技术参数

Technical data

横摇指示器
HRB – HORIZON REFERENCE BAR

横摇指示器由伺服驱动系统、铝制发光灯条、参照灯条和除冰系统组成。横摇指示器通过伺服驱动系统，使发光灯条实现相对于水平位移的稳定。而通过固定在机库后壁的参照灯条来增强对船体横向移动的视觉感知。

The HRB consists the servo system,the luminousbar is aluminium made,the Line Reference Lightsand the de-icing system.The HRB provides a luminous line stabilized with respect to the horizon movement by means of aservo driver system.The Line Reference Lights on the contrary are fixed to the ship hangar face and it can be eventually increasedto extend the visual perception of the roll movements.

技术参数

Technical data