一、前言双轴伺服陀螺漂移测试台为十字框架结构。它由三个互相关联的精密轴系所组成,其示意图如图1—1。在我们所研制的测试台中,内环轴系为φ250×250径向止推圆柱气体静压轴承。外环轴系为φ200开式气体静压球轴承。方位轴系为气体静压止推、径向滚动轴承。如图1—2结构示意图。这三个轴系除它们自身有很高的回转精度外,各轴 First, foreword The biaxial servo gyro drift test stand is cross frame structure. It consists of three interconnected precision shaft system, the schematic diagram shown in Figure 1-1. In the test bench we developed, the inner shaft is φ250 × 250 radial thrust cylindrical hydrostatic bearing. Outer shaft system is φ200 open air static pressure ball bearings. Azimuth axis gas static thrust thrust, radial rolling bearings. As shown in Figure 1-2 structure diagram. In addition to their own three axes have a high rotation accuracy, the axis