本文介绍英国马可尼公司的956型平显/武瞄系统的测试设备。该系统的测试划分成一、二、三线,这分别相当于我国的外场、内场及修理厂的检验与维修。各线所需之测试设备及其功能分述如下。 一、一线 956型平显/武瞄系统的一线维修,不需要专用工具,也不需要测试或地面设备。该系统本身具有自检能力,万一发生故障时,在显示器上便显示一个故障信号;另外,该系统提供有输入设备,在通电检查时产生一个预先编排好的测试图象,显示在驾驶员显示器上。因此,不需用地面设备,就能实现故障检测,进行故障隔离。 一线维修仅需要一台校正驾驶员显示器安装支架用的专用地面设备。这一设备就是校正用的望远镜,它安装在驾驶员显示部件的安装支架上,取代驾驶员的显示部件。望远镜相对驾驶员显示部件的安装面而精确定位,它配合机上的目标操纵台来校正驾驶员的安装支架。 二、二线 二线维修只是简单地更换那些可更换的插件,以及进行适当的验收试验。二线维修所需要的专用设备极其有限。 二线用的测试设备如下: This article describes the British Marconi 956 flat display / Wu Ming system test equipment. The system test is divided into one, two, three lines, which are equivalent to China’s field, infield and repair shop inspection and maintenance. The test equipment required for each line and its functions are described below. First, the first-line 956-type flat / Wu Aiming system of first-line maintenance, do not need special tools, do not need testing or ground equipment. The system has its own self-test capability, in case of failure, the display will show a fault signal; In addition, the system provides input devices, in the power check to produce a pre-arranged test images displayed in the driver On the monitor. Therefore, without the use of ground equipment, can achieve fault detection, fault isolation. First-line repair only requires a dedicated ground device to correct the driver’s monitor mounting bracket. This device is a calibration telescope, which is mounted on the driver’s display mounting bracket to replace the driver’s display unit. The telescope is positioned relative to the mounting surface of the driver’s display unit and is used to align the driver’s mounting bracket with the target console on the machine. Second, second-tier second-line maintenance simply replace those who can replace the plug-in, and conduct appropriate acceptance tests. Special equipment for second-line maintenance is extremely limited. Second-line test equipment is as follows: