null shift meaning in English

零漂

In the end , null shift and scale factor of the newly developed mdrlg is tested . random walk of the gyroscope is 0 . 0163 ? , rms of drift is less than 0 . 09 ? h , relative precision of scale factor is better than 10 ppm
最后对新研制的机抖陀螺进行了漂移和比例因子测试，实验测得陀螺随机游动系数为0 . 0163 / h ~ ( 1 / 2 ) ，漂移均方差小于0 . 09 / h ，比例因子相对精度优于10ppm 。
As the main research institute of ring laser gyroscopes in china , teaching and research section 208 , nudt , is always puzzled by the problem of null - shift in the process of developing mechanically dithered ring laser gyroscopes ( mdrlg ) . the problem is that the mdrlg ' s null shift equal to the integral times of dither periods when the sample time is set as integer dither periods
作为国内激光陀螺主要研制单位的国防科大208室，在机械抖动激光陀螺(机抖陀螺)研制过程中一直为零漂问题所困扰：实验测得机抖陀螺零漂为抖动周期(采样时间取整数个抖动周期)的整数倍。