本文介绍了一种步进电机的锁相控制系统，为实现这一系统提出了步进电机速度误差阻尼方法，并给出了便于工程使用的设计方法。
A step motor phase locking control system and it's velocity error damping method is presented in this paper. A convenient method for engineering design is also given.
根据指数波试验和计算，文中给出了XZF-900精密电阻分压器和ZRF-1200低阻尼电容分压器的冲击测量误差。
The impulse measurement errors of the XZF—900 precision resistor divider and the ZRF—1200 low damped capacitor divider are given from exponential wave tests and calculations.
采用非量纲分析法，验证了统一模型的误差仅依赖于阻尼系数。
It is demonstrated that the errors of the unified valve model are dependent on the damping coefficient alone using a non-dimensional approach.
介绍了利用速度的损失测定气轨阻尼常数的方法，分析了实验误差的主要来源。
A method that determines the viscous damping constant of air cushion track with measuring the speed losing is introduced and the main sources of experimental errors are analysed.
通过引入非线性阻尼项，保证了闭环系统的所有信号都是全局稳定的，而且跟踪误差及参数估计误差均收敛于零。
By introducing nonlinear damping term, it is proved that all signals in the closed-loop system are globally stable, and the tracking error and the parameter (estimation) error converge to zero.
得到了系统在不同的输入转矩波动、齿侧间隙、齿轮综合误差、激励频率和阻尼比参数下系统的全局特性。
The system's global characters are obtained under different input torque fluctuation, backlash, composite transmission error, exciting frequency and damping ratio.
应用非线性最小二乘平差方法阻尼最小二乘法研究了数字化数据误差处理，并将该方法与最小二乘条件平差进行了比较。
This paper presents a study on error processing of map digitized data with nonlinear least squares adjustment which is called damped least squares.
分析了振子的阻尼运动，得到了临界阻尼的附加条件，讨论了在一定的实验误差要求范围内，欠阻尼振子比临界阻尼振子更快地回到平衡位置的问题。
The paper also discusses the fact when that certain precision requirements are met, the underdamping vibrator returns more quickly to the balance position than the critical damping vibrator.
通过仿真分析，比较2套阻尼系统的误差结果，可以看出双惯导外水平阻尼能够显著降低外速度误差的影响，减少阻尼时间，抑制经度误差。
In this paper, the simulation results show that the level damp of DINS can reduce the influence of the external velocity error, decrease damping time, and restrain the error of longitude effectively.
通过仿真分析，比较2套阻尼系统的误差结果，可以看出双惯导外水平阻尼能够显著降低外速度误差的影响，减少阻尼时间，抑制经度误差。
In this paper, the simulation results show that the level damp of DINS can reduce the influence of the external velocity error, decrease damping time, and restrain the error of longitude effectively.
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