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1.绪言用于火箭等宇宙飞行器惯性导航装置中的惯性敏感元件,其精度要求是很高的。过去本所(日航技研所)研制的液浮惯性敏感元件(液浮式一自由度广角积分陀螺,液浮振子型加速度计),为了得到高分辨率和高精度,使常平架浮筒浮在等于其平均密度的油中,而在输出轴上使用高精度的宝石尖轴承,以减低绕输出轴所发生的无用转矩。然而,这种轴承在宝
1. INTRODUCTION Inertial sensing elements used in spacecraft inertial navigation devices such as rockets require high accuracy. In the past, the floating liquid inertial sensor (liquid-floating one degree of freedom wide-angle integrated gyroscope, liquid-floated oscillator type accelerometer) developed by the Institute of Japan Aerospace Science and Technology, in order to obtain high resolution and high precision, floats the gimbal buoy equal to Its average density oil, and the use of high-precision geared pinion bearings on the output shaft to reduce unnecessary torque around the output shaft. However, this bearing is in treasure