摘要
积分陀螺加速度表(PIGA)是用于测量空间载体视加速度的惯性仪表,其刻度因数的稳定性,直接影响射程。刻度因数和许多因素有关,摆性的变化是其主要原因。本文研究了摆性的重力效应,即积分陀螺加速度表的摆性在重力场作用下的变化现象。这种变化对刻度因数的影响不能用通常的多位置误差分离方法所测得,因而很难被发现,但是它对仪表精度和射程精度造成潜在影响,必须引起研究人员的足够重视。作者对重力效应的规律和产生原因作了分析,说明高精度的陀螺仪表应该具有相应合理的结构方案,否则仪表的精度将受到影响。
The pendulous integrating gyro accelerometer(PIGA) is an inertial device measuring apparent acceleration of space vehicle. The stability of its scale factor influences range precision directly. The scale factor relates to many elements and variation of pendulosity is a major factor of them. This paper analyses the gravity effect of pendulosity, that is the variation phenomenon of PIGA pendulosity in the gravity field. The influence of the variation on the scale factor is difficult to be found out, because it can not be measured by the usual method of multiple position error separation, and this variation may potentially affect precisions of instruments and range, so engineers must pay great attention to it. The paper analyses the rule and cause of gravity effect, and points out that a high precision gyroscope should have a relative reasonable structure, otherwise its precision will be affected.
出处
《导弹与航天运载技术》
1993年第5期10-15,共6页
Missiles and Space Vehicles
关键词
稳定性
引力效应
积分它螺仪
Gyroscopic stability
Gravitational effect
Integrating gyroscope
