摘要
在对作用于稳定平台上的各种干扰力矩进行综合分析的基础上,对J-T制冷器供气管路所引起干扰力矩的特性进行了详细分析,并提出了计算公式和减小此项干扰力矩的有效措施。
In the missiles which adopt IR imaging guidance system, J -T cryocooler is often used with the virtues of rapid performance and low cost. However, the air feed tube of J - T cryocooler causes disturbance torque which is exerted on the stabilized platform and then reduces the homing precision. In this paper, all kinds of the disturbance torques exerted on the platform are briefly analyzed first. Then, characteristics of the disturbance torque caused by the elastic air-feed tube are studied, and the calculating formulae are given. Based on the analysis above, practical methods are proposed in order to effectively reduce this disturbance torque.
出处
《激光与红外》
CAS
CSCD
北大核心
2009年第3期277-279,289,共4页
Laser & Infrared
