误差

Adopt project practical quaternion algorithm of strapdown navigation system, Analyze systematic error source, emulation prove the output change of SINS in there is device error of inertia and the initial condition of collimation error.

采用了工程上实用的四元数捷联导航系统的算法，分析了系统误差源，仿真验证了捷联惯导系统在有惯性器件误差及初始对准误差情况下的输出变化。

A hyperbolic error often appears in cutting cone with ordinary lathe tool and arris body lathe tool.

根据用普通车刀和棱体成形车刀车削加工圆锥体时将产生双曲线误差的结果，通过计算得出产生双曲线误差的主要因素及使其误差最小时所要注意的事项

On line correction of setup error using EPID in order to reduce systematic error and random error and then improve setup precision.

在EPID系统下进行实时摆位误差纠正，可进一步降低摆位系统误差和随机误差，提高摆位精度。

According to the problem that grating scale hardly achieves high resolution when in high speed and the characteristic of high speed high precision system,this paper presents across dimension displacement measuring method based on dual grating scales dual measuring,the counting values of dual grating scales switch and merge.

在分析光栅线性位移测量原理、光栅尺的测量误差尤其是细分误差的基础上，本文重点研究双光栅尺切换与合成的原理，建立了基于双光栅尺高速高精度位移测量的设计准则，根据设计准则设计了切换基准拾取方法以及快速切换与合成方法，分析了双光栅计数值切换合成的误差。

Such an analysis will be useful for one to choose point features in stereo images to establish the probabilistically most accurate localization system based on cross-ratio.

此一误差分析方法可让使用者容易地选择影像参考点，以期得到机率上最正确且可信赖的定位结果。除此之外，我们亦提出了在多个影像参考点有误差的情况下，一个有效率的空间定位误差分析方法。

At last, the paper thoroughly researchs the deflection of the ultrasonic wave measuring, and detailedly introduces the cause of the deflection, at the same time,, bings up some measurement to avoid the deflection. Additionally, the paper provide the experimental result and experimental data.

最后本文还给出了实验结果和实验数据，并对超声波测距的误差作了较为深入的研究，对误差的产生作了较为详细的介绍并提出一些避免误差的措施。

The accuracy of beta and phase thus calculated is limited by the accuracy of response matrix measurement and calibration of BPM and correctors.

计算结果的精度主要受响应矩阵测量误差、BPM测量误差和校正铁电源刻度误差影响。

From the experiment and analysis, it can be seen that friction limits realization of high accuracy electro-hydraulic position servo system, movement of any gimbal brings disturbance moment to servo system of other gimbals and the disturbance moment causes error, and, resolution ratio error and setting error of feedback measurement element are directly added to servo system output.

通过实验和仿真可以看出，摩擦阻碍了转台电液位置伺服系统商精度控制的实现，任何一个框架的运动都会对其余框架的伺服驱动系统产生干扰力矩并引起伺服系统误差，反馈测量元件的分辨率误差和安装误差直接反映在伺服系统输出上，对伺服系统的精度有直接影响。

Then the error sources of the reaction type and electron type electric energy mete were analyzed and the theory analysis result through the concrete test have been proved. At last, the main conclusion has been drawn. When the induction type electric energy meter measures harmonics energy, the negative error characteristic appears. The higher the frequency of harmonics is, the greater the error is. The electron type electric energy meter can measure harmonics energy accurately in general cases. Except thermo-electrical conversion type electron type power meter, reaction type and electron type electric energy meter can measure direct current power.

本论文通过分析感应式和电子式电能表的工作原理推导出了电能表计量电能的数学模型；分析了感应式和电子式电能表的误差来源以及谐波对计量的影响，并通过具体的试验对理论分析结果进行了验证；得出了如下谐波对电能表计量影响的主要结论：感应式电能表计量谐波电能时，呈现负的误差特性，谐波频率越高，误差越大；电子式电能表在其频响范围内可以准确计量谐波电能。

Along with several typical problems as the measurement of small low-frequency current, the restraint and compensation of Rogowski measuring error caused by environmental temperature change, the design of integral unit, the influence of Rogowski coil geometrical error on its measuring error and the restraint of Rogowski coil environmental electromagnetic disturb, this paper introduces the related research status of the applied research of Rogowski coil.

本文阐述了Rogowski 线圈的应用研究领域的国内外现状，特别针对Rogowski 线圈应用研究中的低频小电流的测量、线圈温度效应误差的抑制和补偿、积分环节的设计、线圈几何特性误差对线圈测量误差的影响以及外界对线圈电磁干扰的抑制等几个问题，文章做了详细的介绍。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。