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1.前言为了提高火箭等的导航精度,惯性敏感元件(积分陀螺、导航用加速度表等)的高精度化是很必要的。以往,在液浮式一自由度广角积分陀螺及液浮振子型加速度计的高精度化研究中,进行了敏感元件的数字零位控制方式等的研究。为了使这些惯性敏感元件取得高分辨率和高精度,是将常平架漂浮在密度均匀的油中,而且在输出轴承上采用工作精度高的宝石-尖轴承。不过,这种宝石-尖轴承不论说它有怎样高的精度,但在宝石与尖轴之间必然会发生摇
1. INTRODUCTION In order to improve the navigation precision of a rocket and the like, it is necessary to increase the precision of the inertial sensor (such as an integrated gyro and a navigation accelerometer). In the past, studies on the digital zero-position control method of the sensitive element were conducted in the research of the precision of the liquid-floating one-degree-of-freedom wide-angle integrated gyroscope and the liquid-floating oscillator-type accelerometer. In order to achieve high resolution and high precision of these inertial sensors, the gimbals are floated in oil of uniform density, and precision gem-pointed bearings are used on the output bearings. However, this gem - a sharp bearing, no matter how high precision it said, but the gem and the sharp axis will inevitably occur between